耐水阻燃透明型环氧树脂的制备及其应用研究  

Preparation and Applications of Water⁃resistant Flame⁃retardant Transparent Epoxy Resins

作　　者：何银通 梁家琪 刘鲁斌 徐悦 王可竹 余航 王淑慧 许苗军[1] HE Yintong;LIANG Jiaqi;LIU Lubin;XU Yue;WANG Kezhu;YU Hang;WANG Shuhui;XU Miaojun(College of Chemistry,Chemical Engineering and Resource Utilization,Northeast Forestry University,Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials,Harbin 150040,China)

机构地区：[1]东北林业大学化学化工与资源利用学院,黑龙江省阻燃材料分子设计与制备重点实验室,哈尔滨150040

出　　处：《中国塑料》2021年第5期6-10,共5页China Plastics

摘　　要：以二苯基次磷酰氯和哌嗪为原料,成功合成了疏水性阻燃剂哌嗪-1,4-二烷基双(二苯基氧化膦)(PPDO),并将其添加到环氧树脂(EP)中,制备了阻燃EP复合材料。通过垂直燃烧、氧指数、热失重分析、锥形量热分析和力学性能测试对EP复合材料的阻燃性能、热分解行为、燃烧行为和力学性能进行了详细研究。结果表明,阻燃剂含量为17%(质量分数,下同)时,EP/17%PPDO复合材料通过了UL 94 V-0级测试,极限氧指数达28.9%,耐水测试后,EP/PP-DO复合材料仍保持着优异的阻燃效率;与此同时,PPDO与EP基体间出色的相容性,使复合材料具有良好的透明性和力学性能。此外,PPDO明显促进了EP基体提前降解成炭,使其在燃烧过程中,形成了致密且坚硬的膨胀炭层,有效降低了总热释放量,从而使EP/PPDO复合材料获得了良好的阻燃性能。A flame retardant,piperazine-1,4-dialkyl bis(diphenylphosphine oxide)(PPDO),was successfully synthe-sized with diphenylphosphinyl chloride and piperazine as raw materials and then was incorporated into epoxy resin(EP)to prepare flame-retardant EP compounds.The flame retardant performance,thermal decomposition behaviors,combus-tion behaviors and mechanical properties of the resultant EP compounds were investigated extensively by vertical burning test,oxygen index test,thermogravimetric analysis,cone calorimeter and mechanical performance tests.The results in-dicated that the EP compounds achieved the UL 94 V-0 classification as well as a limiting oxygen index of 28.9 vol%with the addition of 17 wt%PPDO.After the water resistance tests,the EP compounds still kept high flame-retardant efficiency due to the good hydrophobic properties of PPDO.Meanwhile,the EP matrix exhibited excellent compatibility with PPDO,leading to the good transparency and mechanical properties of the EP compounds.In addition,the introduc-tion of PPDO significantly promoted the premature degradation and char formation of the EP matrix,resulting in the for-mation of a dense and stiff expansion protective char layer during the combustion process.This effectively reduced the to-tal heat release of the EP compounds and endowed them with satisfactory flame retardant properties.

关 键 词：环氧树脂 哌嗪-1 4-二烷基双(二苯基氧化膦) 阻燃性能 透明性 耐水性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]