Can I safely label my Bepanthen eye drop bottle, which is made of polyethylene (PE plastic), with permanent marker, or is there a possibility that it will absorb components of the permanent marker and transfer them to the contents?
Do they pose risks to humans? If so, which ones? They're just polluting. Does it settle in the body after use? Does it have hormonal effects like bisphenol, for example?
Hi, I watched the first episode of the science anime Dr.Stone And it was mentioned that from a plastic lid, because it is made of polyethylene, i.e. of many ethylene molecules that form a long chain when chopped up, you can easily produce/refineries benzene, i.e. gasoline. We have such a surplus of plastic on Earth;…
It's ONLY about PP and PE, nothing else. Are toxic gases released when heated? Unfortunately, I can't find anything about it online.
Why can't polyvinyl chloride and polyethylene be produced by cationic polymerization? I don't see any reason why you couldn't.
This question is directed at glider pilots, hobby pilots, pilots, aircraft mechanics, and designers. In aviation, the elevators and rudders of small to medium-sized aircraft are operated with steel cables. The cables used require approval as so-called flight cables. In terms of strength, steel cables can be replaced with those made of Kevlar or Spectra….
Hello, I have a PE film and know its surface area and thickness. Now I want to find out the volume of oxygen that can enter or exit through the film per hour (for example). Is there a formula I can use to roughly calculate this? Of course, laboratory conditions aren't present. It doesn't have…
Hi, I read that polyethylene is an alkane. Is that true? But shouldn't it actually be an alkene since it has a CC double bond and not a single bond? I would be very happy if someone could explain this to me. Many thanks!
Hey, unfortunately, I have absolutely no idea about chemistry, but I'm still curious to know what happens when you heat polyethylene to around 700-800 degrees… so, at 90-100 degrees, it melts. At the temperatures just mentioned, what exactly happens? Does it evaporate, does it simply sizzle away…? I hope I have expressed myself well, thank…
Is this somehow unhygienic? Regular Aldi bags are made of polyethylene.