2006-12-03 07:38:29 · 2 answers · asked by ib 1 in Science & Mathematics ➔ Engineering
If you mean transparent, I don't think so. Some are polycarbonates and some are acrylics, some are nitriles. Search on each of those terms and you will find infor on them.
3 DEC 06, 2052 hrs, GMT.
2006-12-03 07:48:36 · answer #1 · answered by cdf-rom 7 · 0⤊ 0⤋
The answer is that they can be. A thermoset is a polymer that forms a network through chemical bonds, and so if it is heated it will still retain its shape- until it starts to burn. A thermoplastic will melt and flow if it reheated- the network is *not* held by chemical bonds.
I would think that thermosets might naturally be less likely to crystallize, but there's no theoretical reason that it wouldn't happen. For the previous answerer, crystallization is just when polymer strands align in a regular pattern.
2006-12-04 20:39:39 · answer #2 · answered by Daniel Quilp 2 · 0⤊ 0⤋