Hacker News new | ask | show | jobs
by kragen 957 days ago
pete isn't a different kind of plastic from pet, it's just a usa-only abbreviation to avoid the non-plastic-related pet trademark the pet company uses on their disposable drinking vessels made from whatever material

the broader point is valid that recycling even hdpe is difficult because of the diversity of fillers and other additives, not to mention variation in molecular weight even before scission by ultraviolet, hydrolysis, or the heat of the molding process

there are in fact people who make a living by recycling. until recently around here they even bought pet, offering lower prices for the colored pet (because with pet you really can economically separate out the fillers and additives and repolymerize it to a known molecular weight)

mostly they recycle paper (mostly cardboard), copper, bronze, brass, lead, and aluminum. glass, steel, concrete, and plastics can be recycled but it's hard to make it profitable

if you hold industry liable for damage done by people improperly discarding its products, soon you will have no industry

2 comments

> if you hold industry liable for damage done by people improperly discarding its products, soon you will have no industry

If it's predominantly being misused, then they do have a moral obligation. They control the packaging, and they know how much of it will end up improperly discarded. And by moral obligation, I really mean it should be a regulation to capture the damage done. Perhaps the recycling deposit from aluminum cans should be expanded.

>if you hold industry liable for damage done by people improperly discarding its products, soon you will have no industry

I don't see how this follows. It might make plastics more expensive... but that's not necessarily a bad thing.

liability for people improperly discarding your products is unlimited; there is no limit to how much damage they can do, and there's nothing you can do to stop them except screen your clients very carefully

and that's why, for example, armadillo aerospace went under; vendors of rocket-grade peroxide do screen their clients very carefully, for precisely that reason, and they had to scrap their peroxide engine design and go back to the drawing board

industry is going to happen instead in places like china where it's allowed (at least for chinese people)