摘要
研究了气流粉碎分散法和普通机械混合法对超高分子量聚乙烯(UHMWPE)中纳米SiO2及玻璃微珠的分散性的影响。经过偶联剂处理的填料,采用这两种方法和树脂混合在一起,在相同的加工条件下,制备出复合材料。通过对复合材料的维卡温度、拉伸强度、硬度的测试,发现气流粉碎分散法有利于提高复合材料的性能,通过对扫描电镜中纳米粒子团聚体的观察,发现气流粉碎分散法有利于填料的分散。
The effects of both the gas stream comminution and the mechanical mixing methods on the dispersions and the properties of the ultra-high molecular weight polyethylene （UHMWPE）-based composites filled with nano-silica or superfine glass beads were investigated. By means of the two mixing methods, the fillers treated by coupling agent were filled into UHMWPE and the resistance to heat, tensile strength, and the hardness of UHMWPE-based composites were tested. The physical and mechanical properties of the composites were obviously enhanced by the gas stream comminution mixing compared with the mechanical mixing. The photographs of the nano-aggregate in the composites observed using Scanning Electron Microscopy （SEM） indicated that the dispersions of the fillers can be effectively improved by the gas stream comminution method.
出处
《北京化工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第1期105-107,111,共4页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
