Hello, I've read that polycarbonate emits bisphenol A, because it's not chemically bound. ABS, on the other hand, is supposedly relatively harmless. But what about a blend (a mixture of both materials)? Does the blend of polycarbonate and acrylonitrile butadiene styrene copolymer also constantly emit toxic substances? Specifically, this concerns a lamp made of PC…
Hello, I'm taking my chemistry exam next week and wanted to look at experiments and their procedures in advance, in the hope that they will come up in the exam. Experiments I will look at in more detail are: Titration, recycling of plastics, methanol synthesis I would really appreciate some help (especially from chemistry teachers)….
Hello, What would I need to precisely machine, mill, laser, or whatever 4mm thick ABS without having to do any major post-processing on the edges? A lettering is to be cut out. I have a diode laser, and it doesn't work with that; it just melts. Isn't the power enough? Would it work with a…
I want to attach an adhesive strip to the case of a quad bike. According to the manufacturer, the case is made of LLDPE, and the surface is quite rough/matte. What options do I have to modify part of the surface so that a sticker will stick there? I've read that you can sand the…
Hello😊, I have a chemistry test tomorrow and I don't really know how to solve the following practice question: Is 1,1,2,2-tetrachloroethylene suitable for the production of a plastic by polymerization? Explain this using the structural formula. I know what the structural formula looks like… but I'm having trouble explaining it… I would be very happy…
Polypropylen Polyethylen polyamide Polycarbonat Acrylonitrile Butadiene Styrene Polymethyl methacrylate Polystyrene Polyoxymethylene I'm interested in plastics and would like to expand my knowledge. Since I work as a molder, or rather, a "process mechanic for plastics and rubber technology specializing in molded parts," my question mainly relates to the thermoplastic form of the plastic. (I wouldn't…
Have a good meal! I'm currently working on a project involving the MuCell process, which involves foaming plastics. I've recently stumbled upon nucleation. Nucleation occurs after injection into the mold. Before that, it's a homogeneous solution due to the high pressure. When I read that, I immediately made a comparison with a closed soda bottle….