纳米双羟基复合金属氧化物(LDHs)对聚氯乙烯(PVC)阻燃抑烟研究  

Flame Retardancy and Smoke Suppression of Polyvinyl Chloride(PVC) Filled with Layered Double Hydroxides(LDHs)

作　　者：郑秀婷[1] 吴大鸣[1] 刘颖[1] 朱复华[1] 

机构地区：[1]北京化工大学新型高分子材料的制备与加工北京市重点实验室,北京100029

出　　处：《塑料》2004年第3期62-65,31,共5页Plastics

基　　金：教育部重点科技研究项目(104025)。

摘　　要：总结了聚氯乙烯(PVC)塑料燃烧时产生烟雾的机理及其阻燃抑烟原理,并且在已开发出的常用无机阻燃抑烟剂的基础上研究了一种新型的无毒环保型无机纳米级阻燃抑烟剂———纳米双羟基复合金属氧化物(LDHs)。分析了其对PVC的阻燃抑烟机理,并且试验证实了它的阻燃抑烟效果。试验结果表明,该阻燃剂只需少量添加就有明显的阻燃抑烟效果,并且克服了以往由于大量添加无机阻燃剂而造成的力学性能下降的缺点,是一种很有发展前景的新型阻燃抑烟剂。The mechanism of the smog while polyvinyl chloride (PVC) inflaming and the principle of flame retardancy,as well as smoke suppression are concluded.On the basis of common used inorganic flame retardants and smoke suppressants,a new kind of innoxious inorganic nano retardants and suppressants——Layered Double Hydroxides (LDHs) was studied.The mechanism of flame retardancy and smoke suppression on PVC was analyzed and the effect of flame retardancy was estimated by the experiments.Experiment results showed an obvious smoke suppression effect with a small quantity of flame retardants,eliminating the drawbacks of declined mechanical properties on account of adding large quantities of inorganic flame retardants. It would be a new flame retardant and smoke suppressant with good developing prospect.

关 键 词：纳米双羟基复合金属氧化物 LDHS 聚氯乙烯 PVC 阻燃 抑烟 力学性能 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业] TQ314.248