摘要
采用转矩流变仪制备了双(γ-三甲氧基甲硅烷丙基)胺接枝EVA共聚物,探讨了其作为增容剂对聚氨酯/硅橡胶过氧化物硫化热塑性弹性体微观结构及力学性能的影响。研究发现,当增容剂用量从0增加到6%时,拉伸强度从5.8 MPa增加到6.9 MPa,断裂伸长率从127.6%提高到263.5%,对应的微观结构上,两相结合边界上孔洞缺陷明显减少,相容性提高。
Bis （7-trimethoxysilyl propyl） amine grafted EVA copolymer was prepared using a torque rheometer and its influences as compatibilizer on the structure and properties of polyurethane/ silicone rubber thermoplastic elastomer which was vulcanized using peroxide were discussed. The results show that： when the content of EVA copolymer increases from 0 to 6%, the tensile strength and elongation at break of thermoplastic elastomer increase from 5.8 MPa and 127.6% to 6.9 MPa and 263.5% respectively. The corresponding microstructure shows that the defect existing in the two phase boundary significantly reduces.
出处
《塑料科技》
CAS
北大核心
2013年第3期42-45,共4页
Plastics Science and Technology
