Xu Wei-Hua, Yan Shi-Jing, Zhao Jian-Qing
Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, School of Materials and Environment, Guangxi University for Nationalities Nanning Guangxi 530006 PR China
School of Materials Science and Engineering, South China University of Technology Guangzhou Guangdong 510640 PR China
RSC Adv. 2022 Mar 18;12(14):8559-8568. doi: 10.1039/d1ra09401g. eCollection 2022 Mar 15.
Polyhedral oligomeric silsesquioxane (POSS) and a highly effective 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)-based flame retardant co-curing agent (D-bp) were chemically introduced into the 4,4'-diaminodiphenyl methane (DDM)/diglycidyl ether of bisphenol A (DGEBA) epoxy system to create organic-inorganic hybrid epoxy composites with simultaneously improved flame retardancy and mechanical properties. The results revealed that POSS/D-bp/DGEBA hybrid composites exhibited excellent comprehensive performance, in which the V-0 criterion of the UL-94 test was passed and the peak of heat release rate (P-HRR) was significantly decreased from 939 to 371 kW m when the phosphorus content was only 0.25 wt%. The glass transition temperature ( ) increased by 16.2 °C and obvious improvement in the mechanical properties was also evidenced.
将多面体低聚倍半硅氧烷（POSS）和一种高效的基于9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物（DOPO）的阻燃共固化剂（D-bp）化学引入4,4'-二氨基二苯甲烷（DDM）/双酚A二缩水甘油醚（DGEBA）环氧体系中，以制备同时具有改善的阻燃性和机械性能的有机-无机杂化环氧复合材料。结果表明，POSS/D-bp/DGEBA杂化复合材料表现出优异的综合性能，其中通过了UL-94测试的V-0标准，并且当磷含量仅为0.25 wt%时，热释放速率峰值（P-HRR）从９３９显著降低至371 kW m。玻璃化转变温度（ ）升高了16.2 °C，并且机械性能也有明显改善。
Zotero 插件
