PP基木塑复合材料紫外光加速老化性能研究  

Study on UV accelerated aging properties of PP based wood plastic composites

作　　者：文霞[1] 田大慧[1] 汤瑛召 Wen Xia;Tian Dahui;Tang Yingzhao(Material Engineering School,Wuhu Institute of Technology,Wuhu 241000,China)

机构地区：[1]芜湖职业技术学院材料工程学院,安徽芜湖241000

出　　处：《洛阳师范学院学报》2022年第2期22-25,35,共5页Journal of Luoyang Normal University

基　　金：安徽高校自然科学研究重点项目(KJ2017A554)。

摘　　要：采用混炼-模压工艺、挤出-注塑工艺制备PP基木塑复合材料,考察了紫外光加速老化对两种成型加工方法制备的PP基木塑复合材料的力学性能、色差性能的影响.结果表明,1000 h紫外光加速老化之后,采用挤出-注塑工艺的复合材料的冲击强度保持率为89.44%,弯曲强度保持率为80.96%,拉伸强度保持率为66.67%;采用混炼-模压工艺制备的复合材料的冲击强度保持率为56.44%,弯曲强度保持率为56.45%,拉伸强度保持率为58.27%;色差差别两种成型方法差别不大.Polypropylene based wood-plastic composites(WPC) were prepared by mixing compression molding and extruding injection molding. The effects of UV accelerated aging on the mechanical properties and color difference properties of PP based wood plastic composites prepared by the two molding methods were investigated. After 1 000 h UV accelerated aging, the retention of impact strength, bending strength and tensile strength of polypropylene based wood-plastic composites by extrusion injection molding were 89.44%,80.96% and 66.67%, respectively;the retention of impact strength, bending strength and tensile strength of polypropylene based wood-plastic composites by mixing compression molding were 56.44%, 56.45% and 58.27%, respectively. There is little difference between the two molding methods.

关 键 词：木塑复合材料 聚丙烯 耐候性能 成型加工 

分 类 号：TS653[轻工技术与工程]