稀土β成核剂改性POM/EVA/PP三元共混材料的性能与表征  

Study on the Rare Earth β Nucleating Agent Modified POM/EVA/PP Blend

作　　者：聂鑫[1] 丁会利[1] 张梅[1] 郑德 张洁[1] 

机构地区：[1]河北工业大学高分子材料科学与工程研究所,天津300130 [2]广东炜林纳功能材料有限公司,广东佛山528521

出　　处：《塑料工业》2011年第8期77-80,共4页China Plastics Industry

摘　　要：利用稀土β成核剂(WBGⅡ)对聚甲醛(POM)/乙烯—醋酸乙烯(EVA)/聚丙烯(PP)三元共混材料进行改性,借助PLM、WAXD、DMA等分析手段对该体系进行热力学分析及对体系的结晶行为、结晶形态进行了表征;并研究了其对共混体系力学性能的影响。结果显示:通过加入稀土β成核剂,POM/EVA/PP三元共混材料的相容性良好,且体系晶型发生明显变化,且加入少量稀土β成核剂,POM/EVA/PP三元共混材料的冲击性能及综合力学性能就可得到有效的改善。The effect of the rare earth β- form nucleating agent （WBG Ⅱ ） on the mechanical property of POM/EVA/PP composites was discussed. The dynamic mechanical thermal analysis, crystallization behavior and morphology of pure PP, POM/EVA/PP and WBG Ⅱ/POM/EVA/PP composites were studied by means of DMA, PLM and WAXD. The results showed that the composites had fine chemical compatibility and the spherulite morphology of composites changed the impact strength and comprehensive mechanical proved significantly. obviously when a little WBG Ⅱ was added, meanwhile properties of POM/EVA/PP composite system can be improved significantly.

关 键 词：聚甲醛/乙烯-醋酸乙烯/聚丙烯共混物 稀土Β成核剂 力学性能 结晶 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]