摘要
用滑石粉对钛白粉填充阻燃聚碳酸酯(PC)进行改性,研究了钛白粉以及滑石粉含量对阻燃PC的力学性能、阻燃性能、燃烧性能、热稳定性能以及抗老化性能的影响。结果表明,添加0.5%~2%(质量分数,下同)的滑石粉,阻燃PC的冲击强度下降了10%,阻燃等级由UL 94 V-1级变为V-0级,总热释放量下降了4~8 MJ/m^(2),初始分解温度提高了8~10℃;同时,滑石粉能够提高阻燃PC的耐热氧老化以及湿热老化能力。
Talc was used to modify the flame retardancy of polycarbonate(PC)filled with titanium dioxide.The effects of talc on the thermal stability,combustion and mechanical properties,flame retardancy and anti-aging performance of resultant PC compounds were investigated.The results indicated that the PC compounds presented a decrease in impact strength.With the addition of 0.5 wt%~2 wt%talc,the flame-retardancy of the compounds reached the UL 94 V-0 classification,the total heat release decreased by 4~8 MJ/m^(2),and the initial decomposition temperature increased by 8~10℃.Meanwhile,the compounds exhibited an improvement in the ability to resist the heat oxygen aging and damp heat aging in the presence of adding talc.
作者
应杰
邱琪浩
章兴
顾亥楠
罗锐
YING Jie;QIU Qihao;ZHANG Xing;GU Hainan;LUO Rui(Ningbo Zhetie Dafeng Chemical Co,Ltd,Ningbo 315204,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2021年第5期107-112,共6页
China Plastics
关键词
聚碳酸酯
滑石粉
热氧老化
湿热老化
polycarbonate
talc
thermal oxidative aging
hydrothermal aging
