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波纹管是一种用来保护电线电缆的塑料管道。它的作用有各种各样,比如:可以防止电线和电缆不受外物的刮擦、耐磨耐酸、柔韧性好等等的优点。波纹管有几种类型,有阻燃型的波纹管和剖开性波纹管。我们就阻燃波纹管进行深入的了解。
目前,用于波纹管的阻燃剂主要有这几大类:一类是溴锑体系,常用三氧化二锑搭配溴系阻燃剂,靠氯化锑长时间隔绝空气,起到阻燃的效果;一类是磷氮体系,过热分解,释放出磷酸和不燃性气体,后者能够在火焰周围隔离氧气;还有一类是复合体系,介于两者之间。
这三种都可以用于阻燃波纹管挤出,不过复合体系相对要好一点。
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