Slashdot Mirror
Possible Graphene Alternative Made From Hemp Waste
MTorrice writes "A low-cost chemical process can turn hemp fiber into carbon nanomaterials. Researchers used the materials to make devices called supercapacitors that provide quick bursts of electrical energy. Supercapacitors made with the hemp nanosheets put out more power than commercial devices can."
According to one of the authors, "Hemp bast is a nanocomposite made up of layers of lignin, hemicellulose, and crystalline cellulose ... If you process it the right way, it separates into nanosheets similar to graphene." Perhaps the process could be applied to related plants (hops?) too.
If only pot were legal, and free, we could all just sit around getting high all the time and the world would be a better place. Government will provide what we need by taking it from evil rich people.
Yay, free pot!
My ashtray is full of carbon nanomaterials stemming from hemp products.
Am I rich now?
They're the same species, so yeah, probably close enough.
United States
Colorado [79], Vermont, and North Dakota have passed laws enabling hemp licensure. Both states are waiting for permission to grow hemp from the DEA. Currently,[when?] North Dakota representatives are pursuing legal measures to force DEA approval.[80] Oregon has licensed industrial hemp as of August 2009.[81] Hemp is not legal to grow in the U.S. under Federal law because of its relation to marijuana, and any imported hemp products must meet a zero tolerance level. It is considered a controlled substance under the Controlled Substances Act (P.L. 91-513; 21 U.S.C. 801 et seq.). Some states have made the cultivation of industrial hemp legal, but these states — North Dakota, Hawaii, Kentucky, Maine, Maryland, Oregon, California, Montana, West Virginia and Vermont — have not yet begun to grow it because of resistance from the federal Drug Enforcement Administration.[82]
They did in fact create a system that puts out more instantaneous energy per unit weight, but that is not the improvement that super capacitors need. They have improved gravimetric power density. The two measures that need improvement to make super capacitors more useful are gravimetric energy density (how much energy can it store in a given weight), and volumetric energy density. How much energy can it store in a given volume. Without significant improvements in those two areas, super capacitors cannot make significant inroads against batteries.
It should also be noted that super capacitors already have better power density than chemical batteries by a wide margin, and are more than sufficient to replace I.C. engines and gasoline in that respect.
I wish I had a good sig, but all the good ones are copyrighted
N/T
Fuck touchscreen, fuck autospell.
They feared that it could be used to suppress protest or support unpopular rule.
Indeed, it's the same plant in the same way that a Yorkshire Terrier is the same animal as a Golden Retriever. Only through selective breeding did they reduce the THC concentrations low enough that the plants couldn't be practically used for psychoactive contents.
Someone flopped a steamer in the gene pool.
And when you make them into hot dogs, they all taste relatively the same.
The wiki link to "bast" refers to a dozen species that produce basts, including flax, wisteria, mulberry, and kudzu.
Is there a reason to go for hemp in particular, aside from the usual hemp-will-solve-everything? Flax is also produced in industrial quantities. TFA doesn't mention why they chose hemp bast.
Look, I'm all for legalized weed and hate the propaganda that makes it out as a devil drug, but I'm not any bigger fan of exaggerations about the wonders of hemp. At least on this web site, it would be nice to look at actual data, rather than who can out-propagandize everybody else.
Colorado [79], Vermont, and North Dakota have passed laws enabling hemp licensure. Both states are waiting...
So three states equals 2? Is that some kind of bong math?
They're the same plant. Hemp (both industrial and medicinal strains) were banned because:
a) there was hysteria over growing opium addiction, and the confusion about hashish (which was, at the time, a foreign and relatively unknown substance) lead some people to believe it was a form of opium
b) it threatened the massive paper and fibre industries
c) the 'top' media entrepreneurs at the time had investments in (b) and used their media empires to stoke the fear surrounding (a) to see hemp banned in the US alongside opium; then other countries followed because of the pressure put upon them by the US government
A classic story of capital triumphing over Good Things.
And since all this process requires are the stalks, then for all intents and purposes, yes. It is the same plant.
The buds, which have recreational and medicinal uses aren't being used. The key word there is lignin. They're using the long, fiberous material not the buds.
And just like those two Canis Lupus Familiaris any two Cannabis Sativa plants will breed and are thus one species.
Actually hemp production focused far more on producing good fiber than reducing THC content. At least until very recently. The THC reduction was just a side effect no one cared about, not until we started having modern drug laws anyway.
Those are not generally used for hemp. The last one is way too short.
The common cannabis used for both medical/recreational use and hemp was what I was speaking about.
And when you make them into hot dogs, they all taste relatively the same.
Yeah, people get the munchies when they are stoned.
Don't look at your dog that way when you get high.
Dogs can sense when someone is thinking about eating them.
Schroedinger's Brexit: The UK is both in and out of the EU at the same time!
If Linux is truly superior, then why isn't everyone using it? Surely Microsoft would jump all over that bandwagon.
Entire? Not quite. It's been discussed here plenty for you to already know that there are states that have enacted legalization.
Colorado even just recently approved the regulatory structure for stores selling pot products.
You may certainly continue to believe what you want to believe, it's just fictional.
Someone flopped a steamer in the gene pool.
For all I know this is valid scientific research. But I can't even be bothered to find out because potheads have stigmatized hemp. "Dude, do you know hemp is 85% more efficient biomass than bacon?" "You know that hemp fibers can be turned into inferior yet expensive paper, right?" "Hemp-o-lene, it's either hemp biofuel or something you jump on." Which all are quite obviously thin excuses to grow more "medicinal"* hemp.
And hemp is a pretty great material, but every time I see an article that talks about a new industrial use I can't help thinking it comes from the same people who giggle when they hear "420" and snerk when they mention how they're into 'hydroponics'.
Seriously folks, if you want me to take you (hemp or pot smokers) seriously you need to clean up your game. Don't smoke a bowl on April 20th, instead bring to my attention how we really don't know the medical properties of cannabis because of government overregulation (or whatever, anything that has real promise to someone who has no interest in smoking pot.)
*Medicine is sold at drug stores, not in shadowy places with a bouncer at the door and punny names like "Grass Roots Clinic" or "Foggy Daze Dispensary".
anytime an application needing plant fiber comes along, there's always a group that starts extolling the virtues of hemp for the purpose,
If you just need biomass for something, there's lots of agricultural waste around. Find a use for straw, or corn husks and cobs, or bagasse (the leftover part of sugar cane). There are other long bast fibers available commercially - jute (used to make burlap), flax (used to make linen), and kenaf (sometimes used to make paper). For even longer fibers, there are plants from the banana family, such as abaca (once called "manila hemp", but it's unrelated) and sisal, which make good rope.
There's a lot of cellulose out there, waiting for someone to come up with a process for making ethanol from cellulose cheaply. There are processes that work, but they still cost too much.
nope they will require a prescriptioin and be sold by big pharma for pile o profits
Also, here is a good article from a local magazine discussing the hemp industry here in Colorado. Westword
Amendment 64 also doesn't require a federal permit to grow industrial hemp (as other states have done), so as it stands right now, go right ahead and grow it knowing that yours may be the landmark case that allows others to cultivate in the future.
Someone flopped a steamer in the gene pool.
There are also verses about partying down with plenty of booze --- after all, a certain Nazarene carpenter's son's first biblical miracle was making sure a wedding party wouldn't run out of wine *after the guests were already pretty soused*. The overall message one might take away from the scriptures is "there are times to be sober, and times to not."
Depends on how long the material is pulled and the girth of the feedstock.
"When information is power, privacy is freedom" - Jah-Wren Ryel
Amendment 64 also doesn't require Colorado farmers to seek federal approval before growing hemp. But that doesn't mean the feds couldn't crack down if they wanted to.
This is no different than those growing for medical and recreational purposes. Yes, the DEA can crack down if they want to, but it's not going to do any good in the long run.
Someone flopped a steamer in the gene pool.
Yeah, but if you get such a store, you'll lose your KFC.
It's an unfair trade.
Get free satoshi (Bitcoin) and Dogecoins
On the contrary, the real reason marijuana is illegal is due to the huge benefits of hemp and relative cheapness/ease of growth. Corporate lobbying strikes again (or struck, back in the 1930's). Do some research if you're completely lost on what I'm referring to here (I'm sure the majority are).
Agreed.
As a Christian I am constantly appalled by idiots who cherry-pick verses out of context to support their prejudices. I don't think having a good time at a party (or at the wedding you referred to) is equivalent to being a drunkard. People who take verses to support their own biases, ignoring the context and what is actually being said make all Christians look bad.
The Christian Right is Neither (Christian nor right). See: Matthew 23, Matthew 25, Ezekiel 16:48-50
Well, that's just incorrect these days. Yes, a lot of the pot from the 90's and 00's was considered "not good" if it had seeds. Nowadays, most pot is pretty damn good. If there are a few seeds because the plant hermaphrodized, then not a big deal.
Someone flopped a steamer in the gene pool.
So since William Randolph Hearst demonized Hemp and forever tied to to Pot, it's been illegal to grow in the USA. You do realize that in most of the free world, you can walk into a grocery store and still buy products made from Coca leaf?
And yet in the "land of the free" almost everything is banned. Except guns. And you need those in case the government "takes away your rights". I hope you see the tremendous irony there.
If telephones are outlawed, then only outlaws will have telephones.
I'm pretty sure there is plenty of demand considering anyone producing hemp products domestically (shirts, shoes, twine, etc) has to import their hemp from Canada, UK, etc.
Which makes me wonder, if hemp is a class 1 controlled substance and is therefore illegal to grow, how is it that some hippy in the hills is able to import it from other countries?
Someone flopped a steamer in the gene pool.
Notice how in the two cases where Cannabis is legal, it was legalized by referendum and not an act of the legislature. IOW, it was legalized by the people, not by the government. So my statement stands.
Give me Classic Slashdot or give me death!
Sympathies. Hopefully the Indica will be arriving in your neighborhood soon.
Granting the best in the world is pure Sativa (Thai Haze). It's also outdoor only (18 month growing season).
I'm looking forward to pot being fully legal, so we can get the good stuff (Thai, Panama Red etc) and stop having to smoke indoor compromise weed.
John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
By recently, you mean hundreds of years ago. Shipping companies didn't want sailors cutting up and smoking their good hemp ropes.
The totally hilarious segue to your post is that Marinol, delta-9-THC, one the primary active ingredients in Marijuana, is a DEA Class III drug. Like Vicodan. Subject to modest regulation, but totally legal.
So the natural stuff is Class I - Heroin type dangerous. The concentrated, pure stuff is Class III - not so bad.
Gotta love those smart people at the DEA.
(Yes, I know, real marijuana is more than just THC and Marinol doesn't do as well as the real thing in getting you high. I've prescribed it so patients have an excuse to have marijuana on their urine drug screen but most prefer the wild type. It's also ridiculously expensive.)
Faster! Faster! Faster would be better!
Ropes are made from the stalks of the plant. Even the most potent plant would have totally worthless stalks.
Only the flowers are really useful for that, leaves could be a really poor substitute I guess.
Yup. Google "The Emperor Wests No Clothes"
So which do you smoke to get high, the Yorkie? I assume there's a lower TCH concentration in the Golden Retriever.
"The Adobe Updater must update itself before it can check for updates. Would you like to update the Adobe Updater now?"
You kind of glossed over the big issue (B). The issue was Dupont.(concerning hemp not marihuana) Dupont had just created the synthetic fibre. Dupont did not want competition. The same can be said for hurst and his wood pulp making venture. The fact that you can make as much paper on 1 acre of land with hemp yearly as it would take 30 acres of land a cycle of 20 years to produce the same amount of paper.
This is the big reason it was banned. Now they also used the "black will rape white women" and "lazy mexicans smoke pot" as an excuse in the media (re: reefer madness for a good laugh. It is a funny movie minus the fact that they actually believed it to be true when made)
have you seen my sig? there are many others like it but none that are the same
its not even concentrated, marinol is totally synthetic. (patented) and therefore someone can make money on it. Pot grown in my.. i mean someones yard or basement cant bring money in.
have you seen my sig? there are many others like it but none that are the same
I would argue the "undesirables" are the ones who are keeping pot illegal, not the ones doing time for smoking a plant.
have you seen my sig? there are many others like it but none that are the same
100 an oz of good weed in cali? shit if it were not for its politics and taxes it would be an awesome place for a stoner. in NY we talk about 3500LB being a good price (5 is not unheard of) and 300 a good OZ price (400 avg for top end)
have you seen my sig? there are many others like it but none that are the same
It's still illegal federally. Possession of any amount is a federal misdemeanor punishable by up to 1 year in PMITA prison. Now the feds don't have the resources to widely enforce that, but they can pick and choose. It's technically still illegal across the entire country, just not regularly enforced.
Give me Classic Slashdot or give me death!
Labrador, man. It's gotta be Labrador.
My kid brother lives in CO. You're still way behind and have a stupidly restrictive set of laws. In CA the feds have shut down most of the 'clubs', after all they were all registered and licensed so where very easy to close. Good thing the California law doesn't require us to register etc.
Indoor is fading as the economics of outdoor takes over in CA. 5 years ago everybody and their brother were setting up indoor grows. I was shutting mine down as their just wasn't enough money left in it.
Now you can buy used lights etc for about 20 cents on the dollar.
BTW seeds from hermaphroditic plants are generally immature as the plant didn't start growing balls until late in the growing cycle.
John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'