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Corn-Based Plastic

SolemnDragon writes "CNN.com is offering up an article about the new corn-based plastic-like product being used at Wild Oats Natural Markets. The product looks like plastic, works like plastic... and then turns into compost. Dubbed the 'corn-tainer,' it's being used to serve foods, etc. Available only in the Pacific Northwest stores (of course) or you can make your own at home. And here's more info on Bio-plastic from MSU." Our older story.

64 of 305 comments (clear)

  1. I thought of a joke by Exiler · · Score: 3, Funny

    but it was corny, so nevermind

    --
    Banaaaana!
  2. How long till it decays by mpost4 · · Score: 4, Interesting

    will it be usefull for storing things for long periods of time, say you wish to store something in a bag (non-food) and leave it for years (lets say like pictures) will the bag decay on you? Will I need to use classic plastic to store non-food stuff?

    1. Re:How long till it decays by mpost4 · · Score: 3, Interesting

      I think they should look to get a plastic replacement that takes about 10 years before it decays, or some formula that will not decay till a special chemical is applied (but this one in my mind seams to be undesirable, because this just adds more chemicals to the environment, and if some slips by we still have the long lasting object)

    2. Re:How long till it decays by HaloZero · · Score: 3, Insightful

      What if such chemical were.. say.. methane? Naturally occuring, and is already ever-present in landfills.

      --
      Informatus Technologicus
    3. Re:How long till it decays by Anonymous Coward · · Score: 4, Informative

      The short answer to your question is... it depends.

      Depending on the final processing of the PLA pellets, the time frame/conditions necessary for decomposition can vary greatly (e.g. amorphous vs. crystallized pellets, additives used). It's my understanding that PLA can even be formulated to last as long as "traditional" plastics.

      I was involved with the engineering and startup of the Cargill Dow PLA facility in Blair in 2001-2002. I had several opportunities to talk personally with some of the research chemists who developed the product formulations and perfected the manufacturing process.

    4. Re:How long till it decays by DotComVictim · · Score: 2, Informative

      Brilliant idea. Difficult to work out in practice. Methane might react under high enough temperature, with an appropriate catalyst, but consider that most of the plastic hydrocarbon polymers in corn starch are going to be completely saturated. Saturated hyrocarbons won't combine readily, and in fact as the fatty acids in the corn plastic hydrogenize, they will become more solid and stronger (and less healthy for you).

  3. Did someone say... by Anonymous Coward · · Score: 5, Funny

    cr0n?

  4. Wait... by Tyrdium · · Score: 2, Interesting

    I thought that pens with the barrels made of a corn-based plastic have already been on the market for a few years... I remember seeing them in a few stores...

    1. Re:Wait... by igorxa · · Score: 2, Informative

      i had one of these pens, MANY years ago. and you can still get them. see here for at least one option. the barrels used to say that they were made of corn, and were biodegradable. they used to come in yellow bodies with green caps. not the prettiest pen, but at least it was environmentally friendly.

    2. Re:Wait... by ajs318 · · Score: 2, Interesting

      Why does a pen need to be biodegradable? Why not just make it to last forever? It runs out of ink - you fill it with ink from a glass bottle. The bottle runs out of ink - you refill it from a tanker. The nib breaks - you fit a new nib and recycle the old one.

      Not rocket science, is it?

      --
      Je fume. Tu fumes. Nous fûmes!
  5. Sounds Fantastic -- Now Why Not Hemp by Nom+du+Keyboard · · Score: 4, Insightful
    This is one of those genuinely good things to happen, if it plays out as good as it sounds now. Nice to see good news at the end of the week.

    I wish we were as forward looking on legal products from hemp, which I would also consider a good thing.

    (Not a troll promoting or encouraging illegal drug use.)

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
    1. Re:Sounds Fantastic -- Now Why Not Hemp by GreatOgre · · Score: 2, Interesting

      Well, the best legal use of hemp would be paper (like the type the U. S. Constitution is written on) that holds up well over time. Then again, hemp paper + illegal hemp product = more high?

    2. Re:Sounds Fantastic -- Now Why Not Hemp by Wakkow · · Score: 2

      This isn't a troll... well, I guess it is, but it's a valid question.

      What's the benefits of hemp for making products? It sure seems to me that pro-hemp people work hard to make hemp work in a variety of situations not because hemp would do the job well, but just to say "look! you can do it with hemp! hemp == good!!".

      If it really is good in a particular situation and I'm way off, I'd like to hear..

    3. Re:Sounds Fantastic -- Now Why Not Hemp by billstewart · · Score: 5, Interesting
      The best legal uses for hemp included smoking the flowers - that requires fixing the laws to match the US Constitution, rather than doing anything technical with the hemp :-) After all, the original copies of the Constitution seem to have stuck around long after anybody in government bothered to read the words on them. Other useful things to do are making hemp cloth, paper, rope, edible seeds, etc. However, I've found that hemp papers sometimes curl a bit too much in laser printers to work very well (or at least, they're not very useful for printing double-sided, because they don't flatten out as well for printing the back side.)


      However, using hemp rolling papers won't affect the THC content of your smoke, because it's got pretty close to none in it. The paper is made from those stems you didn't need, and it's made from hemp plants that were bred for big fibrous stems, not big tasty buds or leaves. As the label for one brand of hemp-based clothing says "Sorry, but you can't smoke your shirt."

      It's possible that using hemp rolling papers will make the contents burn faster or slower or hotter or less hot than dead-tree papers, but you really ought to be smoking from a bong or some other device that'll cool the smoke and reduce lung irritation. However, selling devices that improve public health by reducing the harm caused by illegal substances is illegal in many states, so you're not allowed to print out this message on hemp-based paper with soy-based ink to roll joints in.

      --

      Bill Stewart
      New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
    4. Re:Sounds Fantastic -- Now Why Not Hemp by Anonymous Coward · · Score: 5, Informative

      It actually would be quite useful in a number of situations.

      For paper let's consider the fact that not all paper is of the same grade. There is packaging paper products, crappy paper drink containers at movie places, writing paper, and toilet paper. I personally wouldn't want to be wiping with hemp paper as it's a bit rough, but for packaging paper and shaped paper drink holders it'd work great.

      Some of the really great things about hemp is it doesn't leach minerals out of the ground at anywhere near the same rate cotton does, nor does it take anywhere near as long to grow as a tree. In fact, I may have heard it is the single fastest growing biomass plant in the world, though you may want to check me on that.

      The thing about it's biomass is that it can be turned into biofuel. Not totally sure how, but I know the idea behind it is sound.

      It's interesting to take a look at the prohibiton of hemp, which occured simultaneously with the prohibition on cannabis, and look at some of the people who contributed to it being made illegal. I don't recall all but I know Dow, some national wood producer, and some oil companies were involved. I think it's all detailed in the book "The Emperor Wears no Clothes" by Jack Hanna or something like that.

      My favorite website for news on prohibition, general civil liberties abuse, and marijuana is www.marijuana.com

    5. Re:Sounds Fantastic -- Now Why Not Hemp by ruprechtjones · · Score: 3, Informative

      Most pro-hemp kids I run into don't understand the difference between legalizing hemp and legalizing THC-marijuana. I'm all for legalizing (and regulating and taxing) both, but I think that hemp has the greater value. If done right, growing copious crops of non-THC hemp could reduce our nasty habit of deforestation (to an extent) and really help out companies like Weyerhaeuser. It's not the end-all-be-all solution to cutting down trees, but it's a good start.

      The paper industries would benefit from the legalization of hemp, while the IRS would benefit from the legalization of marijuana. But it ain't ever gonna happen in our lifetimes.

      --
      Kip Hawley is an idiot.
    6. Re:Sounds Fantastic -- Now Why Not Hemp by corebreech · · Score: 2, Informative

      That's The Emperor Wears No Clothes by Jack Herer.

    7. Re:Sounds Fantastic -- Now Why Not Hemp by zogger · · Score: 5, Informative

      Huge yields per acre without having to use massive amounts of fertiliser. Food, fuel, fabric,other fiber products,and plastics. Large variety of useful products from the same plant. Requires very little care. When I was a kid, there were still a lot of wild patches left over from world war 2, when they did an emergency "grow this stuff now" campaign after the phillipines fell to the japanese. No one thought about smoking it though, but I remember playing in one patch that was several acres, stuff was like 15 feet high or something, big plants.

      Farmers could even afford to only harvest half the plant, plow the remainder back under, thereby making your soil every year better, not more depleted, by adding more carbon back into the surface layer.

      It scares the monopolists. Places where it's legal have zero problems with it, none.

      Nope, government is a 100% complete %^&*&**( about it, too much money to be made keeping it illegal and keeping the drug war hype going, shoot, that was the really big police state push, they got everyone to accept all this gestapo SWAT team crap and whatnot with that artifical "threat". I mean, c'mon now, pothead terrorists? People who sit around and eat and listen to records? (well, that's what I saw in the olden days, maybe it's different now) And all the useful stuff you can get from it besides psychoactive? It's a joke, government is out to lunch on it, but, they dig those billions they make on the side and they get to build prisons and have new agencies and use up all that po-leece equipment they have kicking around the po-leece station.....

      My take is, God got all these things, they all got a use, we get to use them, use the planet, plus we are supposed to be neat, sorta take care of things too, there's our ecological balance idea. Makes sense to me.. We may not know WHAT some things are useful for yet-like chiggers, wazzup with them things?- but, everything is useful, and no government should say "no you don't", that's just bogus.

    8. Re:Sounds Fantastic -- Now Why Not Hemp by 1029 · · Score: 2, Informative

      If you want the whole story of hemp in America, get "The Emperor Wears no Clothes", by Jack Herer. Has the history, the uses, and the politics involved in hemp. Good read, and quite a versatile plant I must say.

      --
      - I love animals. I try to eat at least one a day.
    9. Re:Sounds Fantastic -- Now Why Not Hemp by Impotent_Emperor · · Score: 3, Interesting
      The thing is, just cutting down trees doesn't lead to deforestation. Usually, it takes either agriculture and urbanization in order to get rid of forestland. Forests have a tendency to grow back when humans stop plowing into the soil or constantly managing their lawns.

      Using hemp would be nice, but there are some problems. First of all, you need someplace to grow it. With genetically modified crops, we can grow more food per acre, and thus free up farmland to grow hemp. However, there is currently controversy over GM foods, so I don't know if we can definitely count on that happening. The alternative is to cut down forests in order to make way for hemp-farms. This is counter-productive to the goal of saving forests.

      On top of that, hemp is not nearly as useful as trees (note: this is a general statement, some trees are probably better for certain uses than other trees). Hemp has usually been used to make rope and sacks. However, wood from trees goes into building homes, furniture, and other structures along with the pulp we use for paper products (a lot of the the wood the makes paper is actually waste from mills that produce building materials) and is a cheap fuel source for developing/poor people.

      Hemp would compete with other crops for manpower and machinery because it is a seasonal crop. Harvested hemp would have to stored under weatherproof conditions while trees usually can be left outside with the elements. Hemp doesn't work with existing mills, so new, specialty mills would have to be constructed. Basically, we would need an infrastracture change in order to accommodate large-volume hemp production.

      Recently, I became a proponent of sustainable forestry (this is also where I got all that hemp vs. trees info). If people want to save forests, replacing what forests produce with other materials isn't the way to do it. If a tree has no value (can't turn it anything that can be sold), then trees will be cut down and replaced with something that will make money. If you want trees (and forests) to exist, then there has to be a demand for them. This seems like simple economics (glad I took that class) and seems logically correct (glad I took a Practical Reasoning class, too).

      As long as care is taken to make sure a forest is replanted after logging, forestlands can be sustained.

    10. Re:Sounds Fantastic -- Now Why Not Hemp by forgotmypassword · · Score: 2, Informative

      >>It's not the end-all-be-all solution to cutting
      >>down trees, but it's a good start.

      >Lets see..hemp has about 4 harvests a year (and is the ideal rotating
      >crop) and trees take a few decades to grow...
      >Id say its a hell of a good start and finish to any tree vs hemp
      >debate.

      First of all, paper companies have NOTHING to do with deforestation. They own vast amounts of land and at all times they have trees growing at various states of development. They cut a patch of trees down every day, let the stumps rot, and plant new seedlings. In fact, clearing land to grow hemp would do far MORE deforestation than growing trees!

      It is an absurd notion that a paper company would chop down random trees for pulp. Depending on what grade of paper you are making, you have to use a very specific ratio of tree pulps, cotton, and even things like clay (porcelin).

      Secondly, paper companies do not grow standard trees, and they do not grow them to full size. (you could make an analogy to poultry) They have specially bred trees that grow at several times the normal rate.

      I am all for legalizing and taxing the hell out of low-THC, filtered, marjuana cigarettes. But the paper companies and the educated ecologists don't give a shit, and they shouldn't.

    11. Re:Sounds Fantastic -- Now Why Not Hemp by abigor · · Score: 2, Interesting

      I don't think you are very involved with the logging industry. In B.C., where I live, one of the largest paper-producing areas of the world, wild, old-growth forests are being pulped at a massive rate. These are, indeed, "random" trees, and it is not at all absurd. Pulp mills dot B.C. and provide employment for many people in many small towns, like the one I grew up in.

      The cutblocks in some of B.C.'s wild forests (not the tree "gardens" you mention) are big enough to be seen from space.

      However, in the southern U.S., there are tree plantations like what you're talking about. But sadly, compared to Canadian pulp production, they are nothing. I say "sadly" because really, how absurd is it to pulp wild forests for paper and diaper fill when a variety of plants (all you need from the wood is the cellulose) would fit the bill? These plants, such as hemp, could be grown in present farming areas and would provide a boost to local farmers. And they would not require further deforestation.

  6. it will be cheaper and easier to do something else by the_2nd_coming · · Score: 2, Interesting


    Just do what these guys are doing and recycle all the carbon and metal and such to make new oil and metals etc.

    --



    I am the Alpha and the Omega-3
  7. Corn by Anonymous Coward · · Score: 5, Funny

    Finally! I'm rich! I have never owned a computer, tech stocks, etc... but I have been farming corn for the past 50 years! Finally!

    Getting too much pr0n?

  8. Obligatory Comments by Eberlin · · Score: 5, Funny

    That's a-maize-ing!
    That's one way to compile your kernel.
    Hey, guess what I managed to cobb-le together.
    Make plastic or make tequila...tough choice.
    Lastly, I am Cornholio...do you have TP for my bunghole?

  9. Economics by meta-monkey · · Score: 4, Insightful

    Bio degradable better for the environment blah blah blah.

    Nobody's going to use it except in a few niche markets unless it's cheaper to mass-produce than good ol' synthetic plastic. That will take a long time to achieve.

    Actually, even if it did replace plastic, I'm not sure it would be better for the environment. Now you need to mass-mass produce corn. Agricultural run-off can be pretty destructive, too, not to mention the effects of irrigation on natural waterways. TANSTAAFL.

    --
    We don't have a state-run media we have a media-run state.
    1. Re:Economics by Dolohov · · Score: 4, Interesting

      Like the title of your post says, it's economics, and to a greater extent, politics. Forget the environmental argument, compelling as it may be to some people. I'm more interested in reducing the country's consumption of petroleum for both economic reasons (It's largely an import-only product at this point) and political reasons (We tend to import it from people who don't particularly like us).

      Those two considerations alone are, I think, enough to provoke a restructuring of our farm subsidies to make these plastics considerably cheaper in a very short period of time.

    2. Re:Economics by Anonymous Coward · · Score: 2, Interesting

      the US already ass-produces corn...ever wonder why if you buy soda in europe it contains sugar, but buy in the US and its pumped full of corn syrup?

      we're talking major subsidies to farmers.

      not really sure if this is a good thing.

  10. Corn-based plastic. by Crusty+Oldman · · Score: 4, Funny

    .
    They coat it with sugar, stamp it into interesting shapes, and call it "breakfast cereal".

  11. I say Potato You say Corn by ascii(64) · · Score: 2, Interesting

    The plates and embal to the food served, under the 1994 olympcs in Lillehammer, was made of potatos.

    Where have this gone?

    Why dont the use this at McDonnalds (a biker gang for Carl Barks fans?)
    If Ronald dont care about the enviroment he must clearly see the practical
    an economic advantage of this product.

    "we're all out of (freedom/french/*um like whatevah*)fries, but we have some lovely fried cups"

    @ who acctually shuld had posted this anonymsly, and no heading for the bed

  12. Re:Nice by brunes69 · · Score: 3, Insightful

    Since glass is just melted sand, couldnt glass just be ground up into fine sand?

  13. Mmm, kernels! by laukev7 · · Score: 2, Funny

    If we could use corn plastic in computers, could we use kernels for Linux?

  14. Cargill and Dow by Kagato · · Score: 4, Interesting

    Cargill and Dow have had a comercial Corn based platic for years. It enviromentally safe, degrades when when Heat, Mosture, and Darkness are applied. However, because of the way our Ag system works, petro based platic is still cheaper.

  15. It's kind of ironic by dysprosia · · Score: 2, Insightful

    We have natural resources like corn, tapioca (which can also be used to make plastic bags), and even banana fibre, which can't be pulped down but can be made into superstrong paper and card, yet we create still plastics which don't biodegrade and cause harm to the environment....

  16. Yeah, what about ethanol? by Atario · · Score: 2

    I say bring on the corn-based replacements for all petroleum products. Then the US would start to rake in all those dollars that currently go to OPEC.

    --
    "A great democracy must be progressive or it will soon cease to be a great democracy." --Theodore Roosevelt
    1. Re:Yeah, what about ethanol? by tinguru · · Score: 2, Interesting

      Producing ethanol from corn requires burning double the amount of gasoline already used in cars, according to a study conducted by UC Berkeley professor Tad Patzek and his freshman seminar of nine students. Source Daily California 6/10/2003

    2. Re:Yeah, what about ethanol? by benjamindees · · Score: 3, Insightful
      What bullshit. No one is planning to distill ethanol with 'gasoline'. We can use our copious amounts of natural gas and coal, hell, even nuclear energy to create enough ethanol to last for centuries. The article you cite only reaches such absurd conclusions because it includes solar energy as an input.

      In actual 'energy' usage, ethanol does require more energy to create than it offers. A lot of that energy comes from the sun, though, instead of from limited resources. Think of it as a way to convert sunlight and any random heat source around 200Â F into automotive fuel. In that regard, I'm pretty sure it's even more efficient to produce than hydrogen that is electrically 'cracked'.

      Another benefit of ethanol is that it is a clean, safe liquid fuel that is completely compatible with existing combustion engines.

      --
      "I assumed blithely that there were no elves out there in the darkness"
    3. Re:Yeah, what about ethanol? by ajs318 · · Score: 2, Insightful

      You can even get the heat for distilling the alcohol from burning plant matter, which makes absolutely no contribution to climate change {for reasons that your O-level chemistry teacher explained in the 3rd year}. And you only need to heat it to 78.5 degrees, unlike many fuel-from-other-stuff jobs. Theoretically you could use an alcohol still as part of the cooling system from another high-temperature industrial process!

      --
      Je fume. Tu fumes. Nous fûmes!
  17. Disney uses this... by JTFritz · · Score: 4, Insightful

    Disney uses a product like this at all of their theme parks. When you get "plastic" utensils at a restaraunt in the park, it's actually this stuff.

    Great for the environment considering how much garbage Disney generates.

    Feel free to interpret that last statement any way you wish :)

  18. Foretold in "Cradle to Cradle" by iiii · · Score: 3, Informative

    This kind of thing was described/foretold/requested in the book "Cradle to Cradle" , by William McDonough & Michael Braungart, which after reading the /. review I bought and read. (BTW, here is their company) An interesting read. Lots of propaganda, but lots of really good ideas, and a few real results, too. Other related links here and here.

    --
    Light cup, beer drink, thin so chain, neck turtle fat, man I won't say it again
  19. Benifits for computers by outofpaper · · Score: 2, Interesting

    If the bords in our computers where made instead of whith glass and petrocemicals but with plant fibers and plant based plastics we would be able to by degade them whene they where nolonger usfule. It would simplify the extraction of the presious metals that are in them. No longer would the computer reciling firms in asia nead to us toxic cemicals but instead they could use vibrating screens and magnets .

    1. Re:Benifits for computers by Eric+Destiny · · Score: 2, Funny

      Perhaps I could take this post seriously if its spelling didn't resemble that of a toddler with Tourette's and a heroin habit.

      --

      "The meek shall inherit the earth, the rest of us shall go to the stars." Isaac Asimov

  20. Re:it will be cheaper andsier to do something by the_2nd_coming · · Score: 2, Interesting

    correct, however, the first stage of the system that masticates everything removes metal from stuff you put in it. it removes everything that is not made of carbon and returns it to you at the end. so you can throw entire computers in and get clean materials out. read the article...it talks about just that.

    infact thay say it can handle any human waste except toxic waste from nuclear plants.

    --



    I am the Alpha and the Omega-3
  21. yes by SHEENmaster · · Score: 4, Funny

    but Classic Plastic will be outlawed due to its effect on the environment. It will then be discovered that it can act as a halucinegen. America will declare war on plastics, and the libertarian party will be ignored for standing up for our right to buy and use plastics.

    --
    You can't judge a book by the way it wears its hair.
  22. like foxes building the henhouse by SuperBanana · · Score: 2, Interesting
    "My impression is this (company) is motivated by people who know we can't go on burning oil and not destroy our climate," said Ritchie, whose group has been working with Cargill Dow and other companies to create a set of sustainable farming standards for bio-industrial crops. These standards, he said, would emphasize renewing soil fertility, protecting scarce water resources and reducing fertilizers and pesticides.

    Last time I looked, Cargill makes a SHITLOAD of money off pesticides, fertilizers, animal feed chemicals, and so on- just check out their website if you don't believe me. We're supposed to believe they're working on stuff that will eliminate/reduce demand for those products?

    What's Cargill going to sell, information booklets? Patent the compost process? :-)

  23. Re:Nice by Smidge204 · · Score: 4, Informative

    Glass is easily recyclable though. You can crush it up into course particals and use it as aggregate in concrete and asphalt paving, or just melt it down and make new things out of it.

    Plastic is a bit trickier, mainly because there's so many different types of plastic, it makes sorting a nightmare. Some products even use 2 or 3 different types of plastic in one unit! (eg: Tic-Tac dispenser uses a polystyrene container and a polypropylene lid)

    different "types" of glass are mostly just heat treatments. eg: tempered/safety glass.

    A plastic that dissolves in a special chemical would make it easier, especially if that chemical could be retreived after use. Dump all the plastic garbage in a big pot, add chemical, dissolve type X plastic, drain chemical and recover, add different chemical to dissolve type Y plastic, repeat...

    I've also seen plastics (especially expanded polystyrene, like coffee cups) that have glucose in their polymer chains, which means bacteria aide in decomposing the material while it's in the landfill. No idea what happened to this stuff though...
    =Smidge=

  24. Re:Beavis by HBI · · Score: 2, Funny

    Gives a whole new meaning to cornholing.

    --
    HBI's Law: Frequency of calling others Nazis is directly correlated with the likelihood of the accuser being Communist.
  25. biodegradable containers have been around for a by Bob+Bitchen · · Score: 5, Informative

    couple of years now Earthshell has been making biodegradable containers for a while, McDonalds already uses them. And so does the National Park Service.

    --
    http://tinyurl.com/3t236
    1. Re:biodegradable containers have been around for a by Ratface · · Score: 3, Informative

      yup - here in Europe I'll be travelling to a huge rock festival in Denmark in a week or so where all the disposable cutlery for food is made from this stuff (or at least something similar). Works pretty well for the disposable market.

      --

      A little planning goes a long way...
    2. Re:biodegradable containers have been around for a by ajs318 · · Score: 2, Insightful

      Hmm ..... but why have disposable cutlery at all?

      Just have the catering stalls not supply any, and rely on the customers to bring their own metal cutlery ..... or learn to eat without it ..... As long as people were made aware of it from day one, why should it be a problem? You could always sell reusable metal cutlery and plastic or metal plates within the festival.

      Think: disposable bad, biodegradable not so bad, recyclable good, reusable better.

      Legend has it the ice cream cone was invented when someone ran out of containers and spoons - they were originally made of some unleaded bread type thing, if I remember correctly. The ultimate in biodegradable packaging ..... when you've eaten the food inside it, you can eat the container! Now that is cool.

      --
      Je fume. Tu fumes. Nous fûmes!
    3. Re:biodegradable containers have been around for a by JDevers · · Score: 2, Insightful

      Yea, I want to go to a big, crazy rock concert where everyone there is basically REQUIRED to carry metal cutlery...

  26. Plastic Pollution by tbmaddux · · Score: 4, Informative

    In case you're wondering why plastic is bad, visit the Algalita Marine Research Foundation. They have done cruises into the Pacific Ocean and found tiny pieces of plastic that outnumber zooplankton 6 to 1. Plastic "nurdles" or little unprocessed beads of plastic are the number 1 beach polluter in southern California. They sorb hydrophobic toxins (DDT, PCBs and the like) and then poison the critters that eat them.

    --
    Can't you see that everyone is buying station wagons?
  27. Sounds familiar by Bobartig · · Score: 3, Interesting

    We had something like this at my college. It was a grain based plastic-like material for disposable flatware (forks, spoons, knives). The material was billed as a replacement to plastic utensils and would fully biodegrade in landfills within 30-45 days. The material was also very bitter, overly flexy/soft, and became limp when heated to the temperature of hot food. Hopefully, this material is entirely different

    --
    This is where I get my recommended daily allowance of "Foot in Mouth."
  28. Not only good for the environment by FuzzyBad-Mofo · · Score: 2, Funny

    It's also much better tasting than the alternative, Plastic based Corn.

  29. Re:Nice by dhovis · · Score: 5, Informative

    Disclamer: IAAMS (I Am A Materials Scientist)

    Pretty much, yes. Except that I think sand is crystalline and they add some stuff (soda, lime, etc) to make it melt easier. Anything ceramic (and that includes glass), is basically a synthetic rock. Why would you want it to degrade? What is glass poisoning? Anyway, glass is recycled a lot easier than plastic, and recycling is preferable to decay. Just sort it by color and melt it down.

    Actually I think aluminum takes longer to decay than glass does because aluminum forms a protective oxide on the surface that is not as water sensitive as silica (glass) is. Even so, aluminum is great because it is actually profitable to recycle aluminum since it costs a lot less to melt down old aluminum than it does to refine new aluminum from bauxite.

    The other point is that neither aluminum nor glass produces anything toxic as they degrade. Many plastics release nasty toxic compounds as they degrade and so you don't really want them to break down.

    --

    --
    The internet is the greatest source of biased information in the history of mankind.

  30. Drifting O.T. here: by DoraLives · · Score: 2, Funny
    What if such chemical were.. say.. methane?

    BOOOOOM!!

    --
    Is it fascism yet?
  31. I know my popcorn well enough... by cybermace5 · · Score: 3, Interesting

    ...to know that michael meant to say "from the orville-redenbacher dept."

    Corn keeps coming up in the news, with more and more uses. There is a corn-based fuel that's gaining popularity in Minnesota, especially among street rodders. Apparently it has a little more zip than gasoline, and hey, renewable energy (plus the by-products are still useful as animal feed). Corn is the most cost-effective solar cell we'll ever have.

    But you know, in a hundred years, when our great-grandkids all drive corn-powered cars and use corn-plastic products, the alternative-energy quacks will just whine about Big Corn keeping them down.

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    ...
  32. Old News - Soya used in 30's by aussiedood · · Score: 2, Interesting
    Henry Ford made car panels from soybeans in the 30's.

    Henry Ford and His Magic Beanstalk

    From the article:
    By late 1937 Ford's research laboratory, under the direction of youthful, self-trained Robert Boyer, had developed a curved plastic sheet Ford hoped would replace steel in automobile bodies. A few weeks later the magnate called in reporters, jumped up and down on the unbending sheet and triumphantly exclaimed, "If that was steel, it would have caved in." He added "Almost all new cars will soon be made of such things as soybeans" and that the most prosperous era in American history was "just around the corner" because industry was opening up a "whole new field for agricultural by-products."

  33. What about allergies to corn? by ChrisKnight · · Score: 2, Interesting

    My GF is allergic to corn and corn products. If she was ate deli food that was packaged in this it could cause a severe allergic reaction.

    Are these things marked as a corn product?

    -Chris

    --
    -- This sig is only a test. If this were a real sig it would say something witty. --
  34. Not new, just new versions... by docwhat · · Score: 2, Interesting

    While in college, I went to an Agriculture College Open House at the University of Illinios at Urbana/Champaign and they had this stuff there at the time. This would have been around 94 or so.

    They even had packing peanuts made of the stuff that they handed out for people to eat (it was very very bland, but edible). I figure you could live off of it if you got trapped in a UPS truck or something.

    Anyway, I think it's a neat idea. At the time, the packing peanuts were cost effective (and were going to roll out in a company someplace. I saw them a few years later) but the harder stuff wasn't yet. But they had examples of stuff molded out of it.

    Ciao!

    --
    The Doctor What (KF6VNC)
  35. Re:Nice by bluGill · · Score: 2, Informative

    Yes and no. Glass is not just any fine sand, but silica sand, which is not something you want to breath. (the grains are sharp and do bad thing to the lungs) Most of your everyday sand has lots of things other than silica, which reduces the danger. Of course glass can also be made into more glass.

  36. Reusable isn't *always* better. by gfxguy · · Score: 2, Insightful

    Sometimes biodegradable is preferable, especially in locations where water is not in abundance and where other issues take precedence, ike some cleaning agents in the water. Certainly some are not harmful, but unless you pass laws then there will still be people who buy the cheapest detergents and not the most environmentally friendly.

    It's also been noted, in certain locales and for certain materials, that recycling is WORSE than biodegradable and simply disposable... sometimes the process makes a bigger mess than just leaving it. That's not to say this will always be the case, but it is now.

    Unfortunately true environmentalists (like myself) have trouble convincing extreme environmentalists that sometimes they are actually working contrary to goal of having a clean planet - they have a kneejerk reaction to everything without considering the real long term effects.

    There are no generic statements about recycling and reuse that apply to everything, everywhere.

    I have seen this plastic corn based material before, and I think it's a GREAT approach to our disposable lifestyles. While I agree with you in principle (I really dislike disposable plastics, like pens and razors, for example, but I don't have a problem with the plastic being used for durable goods - like car dashboards or computer components), we have to take the world for what it is today and massage things in a way that people aren't inconvenienced. If things become even the least bit harder, a large number of people will not accept it. People are generally lazy, it's a sad fact. Not everyone, not all the time, but often enough.

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    Stupid sexy Flanders.
  37. Greenhouse gas sinks by TheSync · · Score: 3, Interesting

    The most interesting environmental question is whether carbohydrate-based plastics are a net greenhouse gas sink. Oil-based plastics pull carbon out of the ground, and put it back into landfills.

    Carbohydrate-based plastics actually pull CO2 out of the air as plants grown (good), but if they do decompose, the carbon is released as methane gas, which is actually a more powerful greenhouse warming gas than CO2 (bad).

    In the future, we may move from plants to GM bacteria that have hyper-efficient photosynthesis / chemosythesis and cellulases for materials prodcution.

  38. I had a Pen made of Corn... by Talkischeap · · Score: 2, Interesting

    About 12 years ago I ran across some pens made of 100% corn "plastic", so I bought a bunch of them for gifts.

    Of course, they were a "hit" as gifts because they were so unusual.

    But they were quite a bit more flexible than petrochemical based plastic pens, so writing with them was kind of weird.

    And the BIG drawback with them was...

    If you lived in a humid environment, they would self destruct. Like in, get gooey, and sticky, and holes melting in them.

    Neat idea, but waaay too bio-degradable for an object that needs to be around until it's empty of ink.

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    If it don't GO... chrome it. ~ Frank Banks