塑料科技2025，Vol.53Issue(5)：24-28,5.DOI:10.15925/j.cnki.issn1005-3360.2025.05.005
玻纤增强PA6T基高温尼龙复合材料性能研究
Performance Study of Glass Fiber Reinforced PA6T Heat-resistant Nylon Composites
摘要
Abstract
Glass fiber reinforced polyamide 6T/66(PA6T/66),polyamide 6I/6T(PA6I/6T)and polyamide 6T/6I/66(PA6T/6I/66)composites were prepared by melt blending method.The mechanical properties,shrinkage and thermal properties of the three kinds of glass fiber reinforced heat-resistant nylon composites were compared comprehensively,and the variation of mechanical properties with temperature was further explored.The results show that the glass fiber reinforced PA6T/66 composite appears the lowest tensile strength,flexural strength and impact strength at room temperature,and the shrinkage rate is the highest.The glass fiber reinforced PA6I/6T composites possess highest tensile strength,flexural strength and impact strength,and the shrinkage rate is the lowest.The mechanical properties of the glass fiber-reinforced PA6T/6I/66 composite materials are generally between those of the first two materials.The glass fiber reinforced PA6T/66 composite has the highest heat deflection temperature,but its thermal stability is relatively poor.The glass fiber reinforced PA6I/6T and PA6T/6I/66 composites have better thermal stability,but the heat deflection temperature of glass fiber reinforced PA6I/6T composite is lowest,which is close to its glass transition temperature.With the increase of temperature,the tensile strength and flexural modulus of the three composites decreased,while the impact strength increased,and the glass fiber reinforced PA6T/6I/66 composite maintained the best performance in high temperature environment.关键词
高温尼龙/玻纤/力学性能/热性能Key words
Heat-resistant nylon/Glass fiber/Mechanical property/Thermal property分类
化学工程引用本文复制引用
杨森..玻纤增强PA6T基高温尼龙复合材料性能研究[J].塑料科技,2025,53(5):24-28,5.基金项目
重庆英才计划"包干制"项目(CQYC202203091006) （CQYC202203091006）
天地科技股份有限公司科技创新创业资金专项项目(2024-TD-ZD021-02) （2024-TD-ZD021-02）
