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by marriedWpt
2327 days ago
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The chem Engineer in me hates the general word "Chemical". It's not descriptive, any (macro) matter is classified as chemical. I find the words used to describe plastics is equally poor. Is it nylon? Is it a polyurethane? Is it ABS? Is it all large chain chemicals? Or just low density? I could go on. |
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"The five chemical additives were chosen from those detected in a screening analysis of plastics found in the stomach of seabirds (n = 194) [13]: a flame retardant, deca-BDE, which is composed of several PBDE congeners, dominated by 2,20,3,30,4,40,5,50,6,60-decabromodiphenylether (BDE209); three benzotriazole ultraviolet (UV) stabilizers, specifically 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole (UV-326), 2-(3,5-di-tert-amyl-2-hydroxyphenyl) benzotriazole (UV-328), and 2-(3,5-di-tert-butyl-2-hydroxyphenyl)-5-chlorobenzotriazole (UV-327); and one benzophenone UV stabilizer, 2-hydroxy-4-octyloxybenzophenone (BP-12). Industrially, deca-BDE is mixed with polyolefins at a concentration of 5% to 8% by weight [14], and benzotriazole and benzophenone UV stabilizers are mixed at 0.05% to 2% by weight [15]."