UHMWPE多孔材料的烧结温度和微观形态研究  

Study of the Sintering Temperature and Micro-morphology of UHMWPE Porous Material

作　　者：李常峰[1] 蒋炳炎[1] 侯文潭[1] 刘小超[1] 

机构地区：[1]中南大学机电工程学院现代复杂装备设计与极端制造教育部重点实验室,湖南长沙410083

出　　处：《塑料工业》2011年第1期88-90,100,共4页China Plastics Industry

基　　金：国家自然科学基金资助项目(50475140);中南大学研究生学位论文创新选题项目

摘　　要：利用粉末烧结法制备超高摩尔质量聚乙烯（UHMWPE）开孔多孔材料,综合运用差示扫描量热法（DSC）和力学拉伸试验两种实验方法,有效确定UHMWPE多孔材料的烧结温度范围;利用扫描电镜研究了不同原料粒径制备的UHMWPE多孔材料的微观形态。实验结果表明：粉末烧结法制备UHMWPE多孔材料最合适的烧结温度范围为143-149℃;压制烧结后材料内部存在大量空间分布并相互连通的微通道,微通道的大小随原料粒径的减小而减小。Powder sintering technique was used to prepare ultra high molecular weight polyethylene（UHMWPE）open-cell porous material.The proper sintering temperature range was obtained through combining DSC and tensile testing.The micro-morphology of UHMWPE porous material was observed through SEM.The results showed that the proper sintering temperature ranged from 143 ℃ to 149 ℃.Besides,plenty of micro porous was found collected after pressing and sintering,and the sizes of the micro porous were mainly reduced by the decease of the particle size.

关 键 词：超高摩尔质量聚乙烯 开孔多孔材料 烧结温度 微观形态 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]