磷杂菲添加型阻燃剂对乙烯基酯树脂改性探究  

Study on Vinyl Ester Resin with Additive Flame Retardant of Phosphaphenanthrene

作　　者：陈春悦 徐春萍 张永航[1] 龚维 班大明[1,2] CHEN Chunyue;XU Chunping;ZHANG Yonghang;GONG Wei;BAN Daming(School of Chemistry and Materials Science,Guizhou Normal University,Guiyang 550001,China;Guizhou Functional Polymer Materials Science and Technology Innovation Talent Team,Guiyang 550025,China)

机构地区：[1]贵州师范大学化学与材料科学学院,贵阳550001 [2]贵州省功能高分子材料科技创新人才团队,贵阳550025

出　　处：《材料导报》2022年第15期216-220,共5页Materials Reports

基　　金：国家自然科学基金(51763005);贵州省科技计划项目(黔科合平台人才〔2017〕5726号)。

摘　　要：以4-甲氧基酚和三氯氧磷为原料合成二氯化磷酸-4-甲氧基苯酯(MPC)中间体,再通过熔融聚合得到聚对甲氧基苯氧基磷酸-4,4′-异丙基双酚酯(PMIP)。利用傅里叶红外光谱(FTIR)和^(1)H、^(13)C、^(31)P核磁共振对其分子结构进行表征,并用凝胶色谱(GPC)分析其分子量。将PMIP单独或复配聚磷酸铵(APP)应用在乙烯基酯树脂(VER)中制备了PMIP-VER、PMIP/APP-VER复合材料,通过极限氧指数(LOI)、垂直燃烧(UL-94)测试、热重(TGA)分析等研究了PMIP/APP-VER复合材料的阻燃性和热稳定性。结果表明,添加20%(质量分数)的PMIP/APP时,其LOI为24.5%,UL-94可达到V-0级,残炭率为36.60%,有效提高了VER的成炭效率。The intermediate of 4-methoxyphenyl phosphate dichloride(MPC)was synthesized from 4-methoxyphenol and phosphorus oxychloride,and then poly(p-methoxyphenoxyphosphate-4,4′-isopropyl bisphenol ester(PMIP)was obtained by melt polymerization.The molecular structure of PMIP was characterized by fourier transform infrared spectroscopy(FTIR)and^(1)H,^(13)C and ^(31)P nuclear magnetic resonance.The molecular weight of PMIP was analysed by gel permeation chromatography(GPC).In addition,ammonium polyphosphate(APP)and PMIP were applied in vinyl ester resin(VER)to prepare PMIP-VER and PMIP/APP-VER composites.The flame retardancy and the thermal stability of PMIP/APP-VER composites were analyzed by limiting oxygen index(LOI),vertical combustion(UL-94)and thermogravimetric analysis(TGA).The results show that when 20%(mass fraction)of PMIP/APP is added,the LOI is 24.5%,that UL-94 can reach class V-0,and that the residual carbon rate was 36.60%,which effectively improves the coking efficiency of VER.

关 键 词：改性 阻燃性能 耐热性 磷酸酯 

分 类 号：O632.4[理学—高分子化学]