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pvc热风焊的问题

更新时间: 2020-10-02 00:00:00     

1、聚氯乙烯受热易分解,会变黄,变红棕色,最严重是完全碳化,变成黑色;

2、一般是因为温度过高,或加热时间太长,或者材料本身热稳定性不好;

3、由氯乙烯在引发剂作用下聚合而成的热塑性树脂,是氯乙烯的均聚物,氯乙烯均聚物和氯乙烯共聚物统称为氯乙烯树脂;

4、因此聚氯乙烯不宜通过热风方式焊接,建议尝试其他方式焊接。

关键词: pvc 热风 问题

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