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Grapevine canes can be converted into plastic-like material that will decompose

sdstate.edu

21–30 of 351 posts

Re: Grapevine canes can be converted into plastic-like material that will decompose

#21
That is neat, but not breaking down quickly is why we use it so often and why we find it so useful. We already have and use a ton of cellophane, but stores and producers avoid it in favor of plastic because plastic doesn't meaningfully degrade in the store or warehouse even if climate control conditions are shitty.

Re: Grapevine canes can be converted into plastic-like material that will decompose

#22

Yeah that’s the problem. Plastic solves a logistics problem, not a structural problem. Are your Twinkies stuck in a hot truck in Texas for a week? No problem!

It doesn't _only_ solve long-term logistical problems. Plastics are used for things like takeout containers, drink cups and straws, amongst others - things that are only needed for a short time.

All of those need to hold hot and wet things for long enough without contaminating them.

Re: Grapevine canes can be converted into plastic-like material that will decompose

#23
I'm skeptical that new materials like this will meaningfully drive down the demand for virgin plastic packaging. The problem is not just the absence of good alternatives; it's the fact that plastic is the fossil fuel industry's backup plan for the global transition to cleaner energy sources.

That is: in preparation for a decrease in global demand for energy from fossil fuels, the industry is ramping up production of plastic to compensate so that it can maintain profitability (instead of, you know, just slowing down the extractive capitalism). Plastic production is set to triple over the next few decades as new facilities are built to support this transition.

(Source: Paraphrasing from my vague recollection of A Poison Like No Other by Matt Simon, and also articles like this one https://www.ecowatch.com/plastic-production-pollution-foreca...)

Re: Grapevine canes can be converted into plastic-like material that will decompose

#25
post #4
post #2

This is why I'm constantly asking: why aren't we planting vineyards in the Wasatch Front? Silicon Slopes didn't work out but can we at least farm some effing grapes?

I don’t know SLC very well but I’d guess it’s a combination of water consumption, and a bad value:land ratio because the wine won’t be good.

I don't think there are good or bad wine growing regions as much as there are places where people have figured out how to make good wines. The Finger Lakes had a bad reputation once but people figured out Rieslings and some more affordable whites that reputation changed. More recently it was famous for soda-pop sweet wines like Red Cat but I've had some dry reds lately that weren't as bad as what I had 20 years ago.

People are making progress in Utah too

https://en.wikipedia.org/wiki/Utah_wine

Re: Grapevine canes can be converted into plastic-like material that will decompose

#26
I would kill for this for when I’m buying fresh produce at the shops. Right now I just raw dog the produce into my basket as putting 4 apples into a plastic bag to ease the weighing and transport home seems like a selfish thing to do to the environment, but something that starts to break down soon after that sounds great.

Re: Grapevine canes can be converted into plastic-like material that will decompose

#27

Yeah that’s the problem. Plastic solves a logistics problem, not a structural problem. Are your Twinkies stuck in a hot truck in Texas for a week? No problem!

I want my produce wrapped in this plastic not the forever plastic. Maybe the bio-degradable plastic has it's use cases for other special purpose packaging with a very short self life.

Re: Grapevine canes can be converted into plastic-like material that will decompose

#28

Earlier quoted context omitted.

It doesn't _only_ solve long-term logistical problems. Plastics are used for things like takeout containers, drink cups and straws, amongst others - things that are only needed for a short time.

Is your shipment of drink containers stuck in a hot truck in Texas for a month? No problem! They’re plastic

My point is it doesn't have to be a complete solution to replacing plastic to be able to have some benefits to replacing some plastics.

You can have local manufacturing processes so that it doesn't have to get stuck in a truck in Texas for a month.

And there'll still be uses for the long lived plastics. You don't have to use one plastic for everything - like we don't today.

Building a box that can last for centuries when you're only going to use it for 25 minutes and toss it is pretty wild if you think about it.

Re: Grapevine canes can be converted into plastic-like material that will decompose

#29

Yeah that’s the problem. Plastic solves a logistics problem, not a structural problem. Are your Twinkies stuck in a hot truck in Texas for a week? No problem!

I don't know much about this area at all, but it seems like it would be neat to have a plastic that stood up well to heat and moisture, but you could leave it soaking in some petrol/diesel/oil liquid, and it would melt into that and leave you with something still useable.

As I write this, it sounds like I'm just describing something like petrol in a solid form at room temperature. Perhaps there's something a little less far-fetched that people are working towards?

Re: Grapevine canes can be converted into plastic-like material that will decompose

#30

Earlier quoted context omitted.

It doesn't _only_ solve long-term logistical problems. Plastics are used for things like takeout containers, drink cups and straws, amongst others - things that are only needed for a short time.

All of those need to hold hot and wet things for long enough without contaminating them.

Agree, but I don't see any mention of that in the article, so I don't have enough information to argue for that.

I'm sure we can agree though that having 17-day decomposing plastics that don't contaminate with heat and water is a good thing, so I hope it is that.

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