摘要
研究了不同模内反压和持续时间下对超临界微发泡注塑成型产品力学性能的影响。以反压压力、反压持续时间、纳米黏土含量为因素,拉伸强度为评价指标,采用L_(9)(3^(3))进行正交试验。通过扫描电子显微镜观察模内反压对聚丙烯(PP)复合材料断面微孔形态的影响,分析微孔形态对PP复合材料力学性能的影响。结果表明:模内反压和持续时间的变化改变了PP复合材料的微孔形态,从而对微发泡产品的力学性能产生显著影响。
The effects of different gas negative-pressure and holding time on the super critical fluid microcellular part were researched.L_(9)(3^(3))orthogonal test was carried out with the factors of negative-pressure,holding time,nanoclay content.And the effects of gas negative-pressure on PP composite material microforming by the aid of SEM were observed.The effects of morphology on the PP composite material were analysed.The research made it clear that gas negative-pressure and holding time could have an remarkable effect on the mechanical properties of microcellular part by changing the morphology of PP composite material.
作者
褚建忠
陈丹
Chu Jianzhong;Chen Dan(Taizhou Vocational College of Science&Technology,Taizhou 318020,China)
出处
《合成树脂及塑料》
CAS
北大核心
2022年第4期39-42,共4页
China Synthetic Resin and Plastics
基金
2021年台州市科技计划项目(21gyb35)。
关键词
聚丙烯
模内反压
纳米黏土
超临界微细发泡
力学性能
polypropylene
in-mold gas negative-pressure
nanoclay
super critical fluid microcellular foaming
mechanical property
