层柱状双羟基纳米复合金属氧化物对聚氯乙烯的阻燃抑烟作用

Preliminary Study of Inflaming Retarding and Smoke Suppression Function of LDHs on PVC

用NBS烟箱初步研究了LDHs对PVC的阻燃抑烟作用 ,分析了阻燃抑烟机理 ;同时还验证了LDHs对PVC力学性能的影响。结果表明 :10 0份PVC只需填加 3～ 5份LDHs就可以使PVC/LDHs体系的抑烟效率达 5 0 %左右 ,且LDHs本身对PVC的力学性能有增强作用。

A preliminary research of inflaming retarding and smoke suppressing function of LDHs on PVC was made by means of NBS Smoke Density Chamber,and the mechanism of inflaming retarding and smoke suppressing were analyzed,the effect of LDHs on the mechanical properties of PVC was also tested and verified The results showed that only 3～5% of LDHs would make the smoke suppressing efficient of the PVC/LDHs system reach to 50%,and LDHs could improve the mechanical properties of PVC