摘要
采用DSC研究了对羟基苯甲酸 (HBA)对高密度聚乙烯 (HDPE)非等温结晶行为的影响。分析了HBA的引入对HDPE的结晶行为、晶片厚度分布、结晶度以及力学性能的影响。结果表明 ,当HBA用量为HDPE的 0 5 %～1 0 %时可以促进HDPE的结晶 ,从而加快HDPE的结晶速度 ,提高HDPE的结晶度 ,降低片晶的平均厚度及其分布 。
The effect of p-hydroxybenzoic acid(HBA),as a nucleating agent,on the crystallization process of HDPE was investigated by differential scanning calorimetry.Effect of the incorporation of HBA on lamellar thickness and its distribution were evaluated. HBA with the contents of 0.5 %～1.0 %(relative to HDPE) could promote the crystallinity,and accelate the crystalline rate of HDPE,thus decreasing the lamellar thickness and its distribution and upgrading mechanical properties.
出处
《中国塑料》
CAS
CSCD
北大核心
2003年第4期27-31,共5页
China Plastics
基金
国防军工计量"十五"计划重点项目 ( 610 0 5 2 17)
关键词
高密度聚乙烯
成核剂
非等温结晶
片晶厚度分布
high density polyethylene
nucleating agent
nonisothermal crystallization
lamellar thickness distribution
