高校化学工程学报Issue(3)：690-696,7.DOI:10.3969/j.issn.1003-9015.2015.03.028
膨胀石墨(EG)协同新型磷系膨胀阻燃环氧树脂的制备及阻燃性能研究
Preparation and Performance of Expanded Graphite Added Phosphorus Intumescent Flame-Retardant Epoxy Resins
摘要
Abstract
An intumescent flame retardant composite was prepared by adding expanded graphite (EG) in the 6(4-of DOPO hydroxymethyl phenoxy) cyclotriphosphazene (DOPOMPC) and polyphosphate (APP) treated epoxy resin (EP)system. The effect of EG content on flame retarding properties was studied by limited oxygen index (LOI), UL-94, CONE ,TG and SEM, and the retardant mechanism was discussed. The results show that this new type of epoxy resin composites has better flame retardant performance, less smoke and toxicity, and enhanced mechanical properties. The limited oxygen index value could reach to 38.4% for the sample containing 22% DOPOMPC/APP/ EG(DOPOMPC/APP/EG 5/5/1). The CONE experimental results show that pk-HRR, av-SEA, av-EHC and av-CO values of the new composite reduced by 81.8%, 35.5%, 29.0% and 33.3% respectively comparing to that of pure EP, and the tensile strength, flexural strength and impact strength are 70.5%, 1.5 times and 2.6 times higher than that of EP1(10%DOPOMPC/10%APP/EP).关键词
膨胀石墨/环氧树脂/膨胀阻燃剂/协同阻燃Key words
expanded graphite/epoxy resin/intumescent flame retardant/synergistic fame retardation分类
化学化工引用本文复制引用
卢林刚,陈英辉,郭楠,杨守生..膨胀石墨(EG)协同新型磷系膨胀阻燃环氧树脂的制备及阻燃性能研究[J].高校化学工程学报,2015,(3):690-696,7.基金项目
河北省自然科学基金项目(E2012507008). （E2012507008）
