化工学报2016，Vol.5Issue(5)：2169-2175,7.DOI:10.11949/j.issn.0438-1157.20151564
反应型磷氮阻燃剂/可膨胀石墨复配阻燃聚氨酯泡沫
Synthesis, physical-mechanical properties and fire behaviors of polyurethane foam with reactive flame retardant and expandable graphite
摘要
Abstract
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.关键词
泡沫/合成/制备/可膨胀石墨/阻燃Key words
foam/synthesis/preparation/expandable graphite/flame retardancy分类
化学化工引用本文复制引用
杨荣,乔红,胡文田,许亮,宋艳,李锦春..反应型磷氮阻燃剂/可膨胀石墨复配阻燃聚氨酯泡沫[J].化工学报,2016,5(5):2169-2175,7.基金项目
国家自然科学基金项目(51473024).supported by the National Natural Science Foundation of China (51473024). （51473024）
