摘要
通过正交实验研究模压工艺参数对环氧树脂/碳纤维(EP/CF)片状模塑料SMC模压成型制品力学性能的影响,分析了各工艺参数对制品拉伸强度和弯曲强度的影响趋势。通过方差分析,得到工艺参数对于拉伸强度的影响大小为合模速度>模压温度>模压压力>保压时间,工艺参数对于弯曲强度的影响大小为合模速度>模压压力>模压温度>保压时间,同时得到了对拉伸强度和弯曲强度的显著性因素;研究了拉伸破坏模式及失效机理,采用K-均值方法并选取典型试样观察,发现环氧树脂与基体的结合程度是影响拉伸强度的原因。
The influence of molding process parameters on the mechanical properties of carbon fiber/epoxy sheet-molded products was studied through orthogonal experiments,and the influence trend of various process parameters on their ten-sile strength and flexural strength was analyzed.The influence of process parameters on the tensile strength was obtained by variance analysis in an increasing order of:clamping speed>molding temperature>molding pressure>holding time,and the influence of process parameters on bending strength was obtained in an increasing order of:clamping speed>molding pressure>molding temperature>holding time.Moreover,the significance factors affecting the ten-sile strength and flexural strength were also obtained.The tensile failure mode and failure mechanism were studied,and the typical samples were selected for observation using the K-mean method.The results indicated that the bonding de-gree between the matrix and epoxy resin affected the tensile strength of the molding products.
作者
赵川涛
贾志欣
刘立君
李继强
张臣臣
荣迪
高利珍
王少峰
ZHAO Chuantao;JIA Zhixin;LIU Lijun;LI Jiqiang;ZHANG Chenchen;RONG Di;GAO Lizhen;WANG Shaofeng(School of Mechanical Engineering,Zhejiang University,Hangzhou 310012,China;Ningbo Tech University,Ningbo 315100,China;Zhejiang Sci-Tech University,Hangzhou 310018,China;Ningbo City EPL Mould&Plastic Co,Ltd,Ningbo 315615,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2024年第2期26-32,共7页
China Plastics
基金
宁波市“科技创新2025”重大专项(2019B10053)。
关键词
环氧树脂/碳纤维片状模塑料
模压制品
力学性能
正交实验
失效机理
epoxy/carbon fiber sheet molding compound
molded product
mechanical property
orthogonal experiment
failure mechanism
