中国塑料Issue(6)：81-86,6.
超临界CO2挤出发泡DCP微交联高密度聚乙烯研究
Extrusion Foaming of DCP Slightly Cross-linked High-density Polyethylene by Supercritical CO2
摘要
Abstract
High-density polyethylene （PE-HD） was slightly cross-linked by various contents of dicumyl peroxide （DCP）. The melt strength and crystallization behavior of the resultants were characterized by Rheotens and DSC. It was shown that low contents of DCP led to the decrease of melt strength of the resultant, but increased their crystallization rates and crystallization degree; while the contents of DCP was 0. 5 phr, the melt strength of the resultant reached its highest value, O. 127 N, and lowest crystallization degree. The resultants were extrusion foamed by supercritical CO2, and the resultant foams were observed by SEM and a density meter. The results showed that while the contents of DCP was 0.5 phr, the foam was endowed with the best cell morphology with the smallest cell size and lowest density of 0. 5853 g/cm3.关键词
高密度聚乙烯/过氧化二异丙苯/超临界流体/挤出发泡/熔体强度/结晶行为/泡孔尺寸/密度Key words
high-density polyethylene/dicumyl peroxide/supercritical fluid/extrusion foaming/melt strength/crystallization behavior/cell size/density分类
化学化工引用本文复制引用
张玉霞,刘本刚,陈云,何路东,王向东,杜中杰..超临界CO2挤出发泡DCP微交联高密度聚乙烯研究[J].中国塑料,2012,(6):81-86,6.基金项目
北京市教育委员会科技发展计划面上项目 （）
2011年大学生科学研究与创业行动计划项目 （）
