氰酸酯树脂的改性.doc

氰酸酯树脂的改性（毕业论文）PAGE\*MERGEFORMAT36氰酸酯树脂的改性摘要：氰酸酯树脂是有较大应用潜力和发展前景的一种热固性树脂，但脆性较大，韧性不高，所以有很大的改性必要性。本论文采用4-硝基邻苯二甲腈和双酚A溶于DMA，制备双邻苯二甲腈单体，利用核磁共振氢谱(1H-NMR)对双邻苯二甲腈的结构进行表征，采用示热失重分析仪（TGA）对聚合物的固化行为和耐热性能进行了测试分析。采用加热熔融共混树脂，探究多种比例共混树脂的性能。探究双邻苯二甲腈单体的合成工艺并进行改进，得到合成双邻苯二甲腈单体的最佳条件，通过TGA测试得到双邻苯二甲腈改性氰酸酯的TGA图谱并进行分析，改善了氰酸酯树脂的耐热性。关键字：氰酸酯树脂，双邻苯二甲腈，改性ModifiedofcyanateesterresinAbstract:Cyanateesterresinisathermosettingresingreaterpotentialanddevelopmentprospects,butbrittle,toughnessisnothigh,sothereisagreatnecessitymodified.Inthispaper,using4-nitro-phthalonitrileandbisphenolAwasdissolvedinDMA,prepareatwo-phthalonitrilemonomerbyprotonnuclearmagneticresonancespectroscopy(1H-NMR)doublephthalonitrileofstructurecharacterization,usingthermalgravimetricanalyzershows(TGA)oncuringbehaviorandthermalpropertiesofthepolymersweretested.Usingheatmeltblendingresin,explorevariousratiosblendedresinperformance.Inquirysynthesisofdoublephthalonitrilemonomerandmakeimprovements,togetthebestconditionsforthesynthesisofdoublephthalonitrilemonomertoobtainatwophthalonitrilemodifiedisocyanatetestedbyTGAandTGAprofilesanalyzeandimprovetheheatresistanceofcyanateesterresin.Keywords:Cyanateesterresins,bisphthalonitrile,modified目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc421714731"1前言PAGEREF_Toc421714731\h4HYPERLINK\l"_Toc421714732"1.1研究背景PAGEREF_Toc421714732\h4HYPERLINK\l"_Toc421714733"1.2文献综述PAGEREF_Toc421714733\h5HYPERLINK\l"_Toc421714734"1.3本文研究目的意义与主要研究内容PAGEREF_Toc421714734\h18HYPERLINK\l"_Toc421714735"2实验部分PAGEREF_Toc421714735\h20HYPERLINK\l"_Toc421714736"2.1试验原料PAGEREF_Toc421714736\h20HYPERLINK\l"_Toc421714737"2.2双邻苯二甲腈单体的合成PAGEREF_Toc421714737\h20HYPERLINK\l"_Toc421714738"2.3共混树脂的制备PAGEREF_Toc421714738\h20HYPERLINK\l"_Toc421714739"2.4测试仪器与表征PAGEREF_Toc421714739\h21HYPERLINK\l"_Toc421714740"3实验结果与讨论PAGEREF_Toc421714740\h22HYPERLINK\l"_Toc421714741"3.1邻苯二甲腈单体的合成与结构表征PAGEREF_Toc421714741\h22HYPERLINK\l"_Toc421714742"3.2邻苯二甲腈单体合成工艺条件的优化PAGEREF_Toc421714742\h25