A novel intumescent flame-retardant polyethylene system

被引：150

作者：

Xie, F ^{[1
]}

Wang, YZ ^{[1
]}

Yang, B ^{[1
]}

Liu, Y ^{[1
]}

机构：

[1] Sichuan Univ, Coll Chem, Ctr Degradable & Flame Retardant Polymer Mat, Chengdu 610064, Peoples R China

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2006年 / 291卷 / 03期

关键词：

flame retardance; intumescence; metal chelates; polyethylene (PE); synthesis; thermal properties;

D O I：

10.1002/mame.200500356

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel carbonization agent was synthesized and characterized. The flame retardancy and thermal behavior of a new IFR system with and without metal chelates for LDPE were investigated by LOI, UL-94 test, and TGA. Metal chelates can remarkably improve the flame retardant performance of intumescent systems according to the tested results of LOI values and UL-94 ratings because they can act both as inhibitors of radicals and as promoters of carbonization. The TG curves show that the amounts of residue of IFR-PE/metal chelate systems increase compared to those of PE and IFR-PE at temperatures ranging from 400 to 650 degrees C. The IFR-PE/metal chelate system can obviously reduce the amounts of decomposing products at higher temperatures and promotes the formation of carbonaceous charred layers. A LOI value of 29.8 and UL-94 V-0 rating could be achieved when the synthesized carbonization agent, APP, MP, and CoOSA were added into LDPE.

引用

页码：247 / 253

页数：7

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