Synthesis and Characterization of a Novel Flame Retardant and its Application in Polycarbonate
Synthesis and Characterization of a Novel Flame Retardant and its Application in Polycarbonate
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DOI：
10.1177/0734904110365319
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发表时间：
2010-11-01
影响因子：
1.9
通讯作者：
Su, Kenny
中科院分区：
文献类型：
--
作者：
Li, Linke;Wei, Ping;Su, Kenny
合成了一种由磷、硅、氮组成的新型固体阻燃剂聚（3-氨丙基甲基硅氧烷双（3-羟基苯基螺环季戊四醇双磷酸酯））（PSBPBP），并用NMR和FTIR对其进行了表征。然后将PSBPBP加入到聚碳酸酯基质中。测试了PC/PSBPBP体系的阻燃性和机械性能，包括极限氧指数（LOI）、UL-94等级、拉伸强度和冲击强度。在PC中加入15wt%PSBPBP后，体系的阻燃性能得到显著改善（LOI提高到31，UL-94 V0）。拉曼光谱和扫描电镜图像证明了燃烧过程中形成了致密的膨胀型焦炭，它对热量和可燃气体的传递起到了绝缘体的作用。
A novel solid flame retardant poly(3-aminopropyl methylsiloxane bis(3-hydroxyphenyl spirocyclic pentaerythritol bisphosphate)) (PSBPBP) consisted of phosphorus, silicon, and nitrogen was synthesized and characterized by NMR and FTIR. Then PSBPBP was added to a polycarbonate matrix. The flame retardancy and mechanical properties of the PC/PSBPBP system were tested for limiting oxygen index (LOI), UL-94 rating, tensile, and impact strengths. A significant improvement of flame retardancy of the system was observed (increase of LOI up to 31, and UL-94 V0) with an addition of 15wt% PSBPBP to PC. Raman spectrum and SEM images have proved the formation of dense and intumescent char in the combustion, which acted as an insulator to the transfer of heat and combustible gases.