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in abs, tbbpa and brominated epoxy oligomers are used as additive flame retardants meaning that they are not bound to the polymer and therefore have a greater tendency to be released to the environment.
在abs中，四溴双酚-a和溴化环氧齐聚物是作为添加型阻燃剂而使用的，这意味着它们没有与聚合物结合，更容易被释放到环境中。