苯乙烯共聚物增容玻纤增强PA10T/PPE复合材料
Glass fiber reinforced PA10T/PPE composites compatibilized by styrene copolymer
夏厚胜 1姜振 1汤娇 2汤家祥 2曹永均 1盛仲夷 1牛俊峰1
作者信息
- 1. 浙江科技大学生物与化学工程学院,浙江省农产品化学与生物加工技术重点实验室,杭州 310023
- 2. 浙江天台祥和实业股份有限公司,浙江省祥和轨道扣件研究院,浙江台州 317200
- 折叠
摘要
以熔融己内酰胺为溶剂,通过自由基共聚制得一系列苯乙烯-甲基丙烯酸缩水甘油酯(GMA)共聚物(PSG),然后通过熔融共混法制备了PSG增容玻璃纤维(GF)增强聚对苯二甲酰癸二胺(PA10T)/聚苯醚(PPE)复合材料.考察了PSG增容剂的物化特性以及PSG增容剂中GMA的含量对GF/PA10T/PPE复合材料热学性能、力学性能、微观结构和形貌的影响.结果表明,制备的PSG增容剂5%热失重温度不低于374℃,满足GF/PA10T/PPE复合材料增容剂的使用要求.加入PSG显著改善了PA10T相与PPE相的相容性,有效细化了PPE分散相,增强了GF与树脂间的界面结合.当PSG中的GMA物质的量分数为4%时,复合材料展现出最佳的力学性能,拉伸强度为130.4 MPa,弯曲强度为164.4 MPa,缺口冲击强度为7.5 kJ/m2,同时该复合材料的饱和吸水率降低至1.32%.该复合材料表现出良好的综合性能,有望在汽车、电器和通信等领域得到应用.
Abstract
Using molten caprolactam as solvent,a series of styrene-glycidyl methacrylate(GMA)copolymer(PSG)were prepared through free radical copolymerization.Then glass fiber(GF)reinforced poly(decamethylene terephthalamide)(PA10T)/poly(phenylene ether)(PPE)composites compatibilized by PSG were prepared by melt blending.The physical and chemical proper-ties of PSG compatibilizer and the influences of GMA content of PSG compatibilizer on the thermal properties,mechanical proper-ties,microstructure and morphology of GF/PA10T/PPE composites were investigated.The results indicate that the prepared PSG compatibilizer with 5%thermal weight loss temperature not less than 374℃meets the use requirements for the compatibilizers of GF/PA10T/PPE composite.The addition of PSG significantly improvs the compatibility between PA10T and PPE,refines the size of PPE domains,and enhances the interfacial bonds between GF and polymeric matrix.As PSG contained 4 mol%GMA reactive monomer,the compatibilized GF/PA10T/PPE composite exhibits the best mechanical properties.The corresponding tensile,flexur-al,and notched impact strength are 130.4 MPa,164.4 MPa,and 7.5 kJ/m2,respectively.Moreover,its saturated water absorption rate is as low as 1.32%.The developed composites with good comprehensive properties have potential applications in the fields of auto-mobiles,electrical appliances,and communication devices.
关键词
增容剂/苯乙烯共聚物/聚对苯二甲酰癸二胺/聚苯醚/玻璃纤维Key words
compatibilizer/styrene copolymer/poly(decamethylene terephthalamide)/poly(phenylene ether)/glass fiber引用本文复制引用
基金项目
浙江省尖兵领雁研发攻关计划项目(2022C01177)
出版年
2024
NETL
NSTL
万方数据