摘要
采用熔融接枝法,在三元乙丙橡胶(EPDM)上接枝甲基丙烯酸缩水甘油酯(EPDM-g-GMA),用作EPDM增韧聚对苯二甲酸丁二醇酯(PBT)的增容剂。通过红外光谱表征证实了接枝反应的发生。考察了EPDM-g-GMA的引入对PBT/EPDM/EPDM-g-GMA共混物力学性能、形态结构、动态力学性能的影响。结果表明,随着EPDM-g-GMA含量的增加,EPDM在PBT中的分散相粒径更加细化,两相玻璃化转变温度的差值减小,PBT与EPDM间的相容性增加,共混物的缺口冲击强度显著提高,PBT能够被有效增韧。PBT/EPDM/EPDM-g-GMA的质量比为75/15/10时,体系的韧性最好。
Ethylene-propylene-diene monomer(EPDM)was grafted with glycidyl methacrylate(GMA)by melt grafting processes and used as a compatibilizer for EPDM toughened polybutylene terephthalate(PBT).The grafting reaction was confirmed by fourier transform infrared spectroscopy(FTIR)results.The effect of the introduction of EPDM-g-GMA on the mechanical properties,micromorphology and dynamic mechanical properties of ternary blends of PBT/EPDM/EPDM-g-GMA were investigated.The results show that the increase of EPDM-g-GMA content could decrease the size of the dispersed phase in the PBT blends and reduce the difference of the glass transition temperature between two phases of PBT/EPDM blends.The compatibility between PBT and EPDM could increase,the notched impact strength is improved significantly.When the weight ratio of PBT/EPDM/EPDM-g-GMA is 75/15/10,PBT resin is effectively toughened.
作者
毛泽誉
胡瀚中
刘岩
韩瑞锋
谭志勇
MAO Ze-yu;HU Han-zhong;LIU Yan;HAN Rui-feng;TAN Zhi-yong(Synthetic Resins and Special Fiber Engineering Research Center,Ministry of Education,Changchun University of Technology,Changchun 130012,China;School of Chemical Engineering,Changchun University of Technology,Changchun 130012,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2020年第5期145-149,共5页
China Plastics Industry
