摘要
用化学发泡注射成型技术,在低密度聚乙烯(LDPE)中加入不同牌号聚烯烃弹性体(POE),于二次开模时制备微发泡LDPE复合材料,分析材料本征特性对发泡LDPE复合材料发泡行为的影响。结果表明:LDPE中加入不同牌号POE后,表现出不同黏度;加入8100,8440,8450POE的LDPE复合材料发泡后,泡孔平均直径较大,泡孔尺寸不均匀,有并泡现象存在;而加入8180POE的发泡LDPE复合材料,泡孔直径较小,泡孔尺寸均匀,发泡质量理想,适用于发泡LDPE制品的开发。
By taking chemical foaming injection molding technology,microcellular foamed LDPE composites with different brancls POE were made under twice-open mold.The effect of intrinsic characteristics on foaming behavior of foamed LDPE composites was analyzed.The results show that LDPE shows different viscosity with vifferent brands POE; the foamed LDPE composites with 8100 or 8440 or 8450 POE show large cell average diameter,uneven cell size and merged cell phenomenon; however,the foamed LDPE composites with 8180 POE have small cell diameter and uniform cell distribution,foaming quality is good,and they are suitable for the development of foamed LDPE products.
出处
《现代塑料加工应用》
CAS
北大核心
2014年第1期37-40,共4页
Modern Plastics Processing and Applications
基金
贵阳市工业振兴计划项目
筑科合同[2012101]3-9号
贵州省重大专项项目
黔科合重大专项字(2012)6023
博士科研启动项目
关键词
低密度聚乙烯
二次开模
聚烯烃弹性体
发泡行为
复合材料
黏度
low density polyethylene
twice-open mold
polyolefin elastomer
foaming behavior
composites
viscosity
