文献类型：期刊文献

中文题名：阻燃型对二甲苯基氰酸酯的合成、表征与性能

英文题名：Synthesis,characterization and properties of novel dimethyl phenyl bridged flame retardant cyanate ester

作者：杨华清[1];王帆[1];黄彬磊[1];杨龙[1];王家樑[1]

机构：[1]华东理工大学特种高分子材料及其相关技术教育部重点实验室,上海200237

年份：2013

卷号：30

期号：S1

起止页码：26

中文期刊名：复合材料学报

外文期刊名：Acta Materiae Compositae Sinica

收录：CSTPCD;;EI(收录号：20140317215917);Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金(51103038)

语种：中文

中文关键词：氰酸酯;合成;热稳定性;残留率;阻燃

外文关键词：cyanate ester;;synthesis;;thermo stability;;char yield;;flame retardant

摘要：本文合成了两种含对二甲苯结构氰酸酯单体。通过苯酚和2,6-二甲基苯酚分别与对苯二甲基二甲醚(BMBZ)反应分别制得含酚单体1,4-二(4-羟基-苄基)苯(BHBZ)和1,4-二(3,5-二甲基-4-羟基-苄基)苯(BBZ),进一步与氯化氰反应合成相应对苯二甲基型氰酸酯单体。通过红外光谱(FTIR)、电喷雾质谱(ESIMS)、氢核磁共振谱(1 H-NMR)对酚中间体和氰酸酯单体结构进行表征。研究树脂浇注体的热性能、介电性能、吸湿性和阻燃性等并与双酚A型氰酸酯(BADCy)进行比较。结果表明,BHBZCy和BBZCy 800℃残留率分别达到55.2%和40.5%,介电常数分别为3.03和2.81(1MHz),80h吸水率分别为0.87%和1.0%,阻燃等级达到UL-94V-0级。
Two dimethyl phenyl bridged cyanate ester was prepared.Phenol precursor 1,4- bis(4- hydroxybenzyl)benzene(BHBZ)and 1,4-bis(3,5-dimethyl-4-hydroxyl-benzyl)benzene(BBZ)were obtained by the reaction of phenol and 2,6-dimethyl phenol with 1,4-bis(methoxymethyl)benzene respectively. The corresponding CE were prepared through the reaction of precursor with cyanogen chloride.The chemical structures of phenyl precursor and cyanate resin were characterized by FTIR,ESI-MS and 1H-NMR.The thermal properties,dielectric properties,hygroscopic properties and flame retardant,etc of cured resin were studied and compared with BADCy.The cured BHBZCy and BBZCy exhibited yield of 55.2%and 40.5% at 800 ℃,dielectric constant of 3.03and 2.81at 1MHz,water absorbtion of 0.87%and 1.0%after 80h.Both cured resin reach V- 0at UL-94flame test.