研究了不同含量的云母粉填充磺酸盐阻燃聚碳酸酯(PC).通过燃烧测试仪、锥形量热仪、热失重分析仪、差示扫描量热仪等手段研究了云母粉填充磺酸盐阻燃PC的阻燃性、燃烧特性、耐热性和力学性能等性能.结果表明,云母粉与磺酸盐能协效阻燃PC.云母粉与聚碳酸酯分子链之间存在有一定的氢键作用,添加云母粉虽不能提高PC燃烧时的成炭率,但能使其燃烧时的热释放速率明显降低,减缓热传导速度；另一方面,云母粉也可能使得全氟丁基磺酸钾(PFBS)在PC中分散更均匀,从而提高PC的阻燃性.除此之外,云母粉对PC的力学性能和加工性能也有一定的影响.%Different contents of mica were filled in sulfonate flame retardant polycarbonate ( PC ). The Performance of flame resistance, combustion characteristics, heat resistance and mechanical properties of mica filled sulfonate flame retardant PC were studied by burning tester, cone calorimeter, thermal gravimetric analyzer, and differential scanning calorimeter. It was found that the flame retardant property of PC was improved with mica. The interaction between mica and PC was proposed to be hydrogen bonding and verified. Although the weight of residual char of PC after burning wasn't increased compared with PC, however, the heat release rate and heat conduction were decreased. On the other hand, sulfonate flame retardant could be dispersed more uniform in PC because of mica which was also responsible for improving flame-retardant of PC. In addition, the mechanical properties and processability of PC were influenced by mica.
展开▼
