晶须增强尼龙66及其合金力学性能研究  

Mechanical Properties of Potassium Titanate Whisker Reinforced Polyamide-66 and PA66/PP Blend Composites

作　　者：杨宁[1] 贵大勇[2] 田军[2] 

机构地区：[1]北京市公安消防总队,北京100035 [2]北京理工大学材料科学与工程学院,北京100081

出　　处：《塑料》2006年第2期14-17,62,共5页Plastics

摘　　要：晶须作为新型填充材料对树脂的增强增韧作用日益得到人们的关注.采用钛酸钾晶须（K2Ti6O13）对尼龙66（PA66）及其合金（PA66/PP）进行填充,对几种不同偶联剂的表面处理作用效果进行了比较.实验结果表明：钛酸钾晶须对尼龙66及其合金有较好的增强效果,可以普遍提高材料的力学性能,最佳用量为25%～35%.但是,复合材料的韧性仍然有待提高,通过制备尼龙66/聚丙烯合金的方法来改善,使得晶须填充合金复合材料在保持尼龙66原有强度的同时,韧性提高87.6%.The mechanical characteristics of compatible polyamide-66 and PA66/PP blend composites containing potassium titanate whisker was studied. Some different coupling agents were compared for improving the interface combination. The test proved that the potassium titanate whisker had a remarkable influence on the mechanical characteristics of PA66 and the most suitable content of whisker was 25% - 35%. But the composites still needed an improvement in toughness, so PA66/PP was used to replace PA66. The potassium titanate whisker reinforced blend got 87.6% increase in toughness compared with PA66/whisker, while the strength was maintained.

关 键 词：尼龙66 钛酸钾晶须 偶联剂 马来酸酐接枝改性聚丙烯 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]