中国塑料2025，Vol.39Issue(5)：1-8,8.DOI:10.19491/j.issn.1001-9278.2025.05.001
PP-CGFR/PP-LGFR热压-注塑一体成型制品力学性能分析
Analysis of mechanical properties of PP-CGFR/PP-LGFR-integrated over-molding products
摘要
Abstract
Glass-fiber-reinforced polypropylene was used to prepare integrated over-molding products.The significant factors af-fecting tensile strength and bending strength of the molded products were investigated by an orthogonal experiment,and the influ-ence of process parameters on their mechanical properties was analyzed.Furthermore,the tensile and bending failure modes of the molded products under different process parameters were discussed,the microscopic morphology of their failure section was observed,and the correlations between their molding process and microstructure and mechanical properties were established.The results indicated that the significant factors affecting the tensile strength included the preheating temperature,holding pres-sure,and mold temperature.The significant factors affecting the bending strength were the preheating temperature,holding pressure,and melt temperature.The bonding strength between organic sheets and injection molding materials and the degree of fiber-resin bonding of the organic sheet were the main factors affecting the mechanical properties of the molded products.关键词
聚丙烯/玻璃纤维/热压-注塑一体成型/力学性能/微观结构Key words
polypropylene/glass fiber/integrated over-molding/mechanical property/microstructure分类
化学工程引用本文复制引用
吴希然,贾志欣,刘立君,李继强,赵川涛,陈博杰..PP-CGFR/PP-LGFR热压-注塑一体成型制品力学性能分析[J].中国塑料,2025,39(5):1-8,8.基金项目
宁波市重点研发计划暨"揭榜挂帅"项目(2022Z044) （2022Z044）
浙江省市场监督管理局科技计划项目(ZC2023061) （ZC2023061）
