QQ客服 官方微博 反馈留言

	POSS基含磷嵌段共聚物无卤阻燃环氧树脂的研究; The Study of POSS-based Phosphorus-containing Block Copolymer Halogen-free Flame Retardant Epoxy
	邱武辉 ; 陈显明 ; 袁丛辉 ; 罗伟昂 ; 曾碧榕 ; 许一婷 ; 戴李宗
	2015-03-28
关键词	POSS基含磷嵌段共聚物 无卤阻燃 环氧树脂 热稳定性 POSS-based phosphorus-containing block copolymer halogen-free flame retardant epoxy resin thermal stability
英文摘要	合成一种含P、SI协同阻燃的新型嵌段共聚物,将合成的阻燃嵌段共聚物分散于双酚A型环氧树脂E51中,以4,4′-二氨基二苯甲烷(ddM)为固化剂,制备了一系列不同P、SI含量的阻燃环氧树脂.采用扫描电镜(SEM)对改性环氧树脂断面进行观察,通过动态力学热分析(dMTA)、差示扫描量热法(dSC)、热失重分析(TgA)及氧指数(lOI)对改性环氧树脂进行性能测试.结果表明:合成的含P、SI新型嵌段共聚物在环氧树脂中能够自组装形成以多面体齐聚半硅氧烷(POSS)链段为核、含磷嵌段为壳的纳米核壳结构,阻燃元素P、SI以“捆绑式“均匀分散在环氧基体中,达到低P、SI含量下优良的协同阻燃效果.此外,添加阻燃嵌段共聚物还能够有效提高环氧树脂热稳定性.; A novel phosphorus-silicon synergistic flame retardant block copolymer,named as PMAiBuPOSS-b-PGMA-g-DOPO(PMGD),was prepared.A series of flame retardant epoxy resins composed of different content of phosphorus and silicon were prepared by mixing PMGD with diglycidyl ether of bisphenol-A(E51),and using 4,4′-diaminodiphenylmethane(DDM)as a curing agent.The morphology of fracture surfaces was studied using scanning electron microscope(SEM),and the properties were evaluated using dynamic mechanical thermal analysis(DMTA),differential scanning calorimetry(DSC),thermogravimetric analysis(TGA),and limiting oxygen index(LOI).The results showed that PMGD could self-assemble into core-shell structure in E51 with PMAiBuPOSS segment as core,and phosphorus-containing block as shell.Despite of a very low P and Si content in the epoxy matrix,retardant elements P and Si were homogeneously dispersed in the epoxy matrix in a " bundled" form,which led to an excellent synergistic flame retardant effect.In addition,the modified epoxy resins had much better thermal stability.; 国家自然科学基金(U1205113;51273164); 厦门市科技计划项目(3502Z20130033;3502Z20133003)
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/98497]
专题	材料学院－已发表论文
推荐引用方式 GB/T 7714	邱武辉,陈显明,袁丛辉,等. POSS基含磷嵌段共聚物无卤阻燃环氧树脂的研究, The Study of POSS-based Phosphorus-containing Block Copolymer Halogen-free Flame Retardant Epoxy[J],2015.
APA	邱武辉.,陈显明.,袁丛辉.,罗伟昂.,曾碧榕.,...&戴李宗.(2015).POSS基含磷嵌段共聚物无卤阻燃环氧树脂的研究..
MLA	邱武辉,et al."POSS基含磷嵌段共聚物无卤阻燃环氧树脂的研究".(2015).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。