Synthesis, physical-mechanical properties and fire behaviors of polyurethane foam with reactive flame retardant and expandable graphite

被引：0

作者：

Yang R. ^{[1
]}

Qiao H. ^{[1
]}

Hu W. ^{[1
]}

Xu L. ^{[1
]}

Song Y. ^{[1
]}

Li J. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Changzhou University, Changzhou, 213000, Jiangsu

来源：

Huagong Xuebao/CIESC Journal | 2016年 / 67卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Expandable graphite; Flame retardancy; Foam; Preparation; Synthesis;

D O I：

10.11949/j.issn.0438-1157.20151564

中图分类号：

学科分类号：

摘要：

Flame retardant polyurethane foams have been synthesized by using a new reactive flame retardant hexakis (4-diethyl phosphate hydroxymethyl phenoxy) cyclotriphosphazene (HPHPCP) and expandable graphite (EG). The effects of flame retardants on physical-mechanical properties, thermal stability and fire performances were investigated. In particular, the fire behaviour of the foams was studied by the oxygen index and UL-94 burning test. The results showed that the density of flame retardant foams increased with flame retardant compound. The compressive strength increased first and then declined with the decrease content of HPHPCP. However, an increase in the content of expandable graphite caused a worsening of insulating properties of PUF. The presence of HPHPCP mixture with EG brought an overall improvement in the thermal stability and fire behavior. The initial decomposition temperature (T10%), maximum decomposition temperature (Tmax) and char residues at 700℃ increased with increasing content of EG in mixture flame retardant. Moreover, the oxygen index (OI) increased in a linear way and all flame retardant PUFs can pass UL-94 HF-1 and V-0 rating. © All Right Reserved.

引用

页码：2169 / 2175

页数：6

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