摘要
针对高填充氢氧化镁所导致的聚丙烯复合材料脆性增加问题,开展使用凯夫拉纤维和聚乙烯-辛烯共聚物(POE)增韧聚丙烯/氢氧化镁复合材料的研究。通过熔体挤出加工方法制备了聚丙烯/氢氧化镁/POE三相复合材料和聚丙烯/氢氧化镁/凯夫拉纤维三相复合材料,表征并研究了其微观形态、力学性能和阻燃性能。研究结果表明,凯夫拉纤维和POE的加入大幅度改善了复合材料的冲击韧性,而且没有影响复合材料的阻燃效果。增韧过程使聚丙烯/氢氧化镁复合材料的实用性得到显著提升。
In order to solve the problem of increased brittleness,flexible Kevlar fiber（KF）and polyethylene-octene copolymer（POE）were used to toughen flame-retardant polypropylene（PP）composites filled with magnesium hydroxide（MH）.The PP/MH/POE and PP/MH/KF composites were prepared by melt extrusion and their morphology,mechanical and flame-retardant properties were characterized.The results indicated that the composites were toughened by both Kevlar fiber and POE and also exhibited a satisfactory flame retardancy.The toughening process significantly improved the practicability of PP/MH composites.
出处
《中国科技论文》
CAS
北大核心
2015年第10期1140-1143,共4页
China Sciencepaper
基金
高等学校博士学科点专项科研基金资助项目(20100010110006)
关键词
聚丙烯
凯夫拉纤维
聚乙烯-辛烯共聚物
氢氧化镁
增韧
polypropylene
Kevlar fiber
polyethylene-oetene copolymer
magnesium hydroxide
toughening
