摘要
采用二甲基硅氧烷-b-乙二醇嵌段共聚物(DMS-b-OE)对聚二甲基硅氧烷/聚氨酯(PDMS/PU)共混体系的增容,重点研究了增容共混体系的微观形态结构和力学性能之间的关系。扫描电子显微镜、动态力学分析和力学性能测试结果表明:DMS-b-OE对PDMS/PU具有优良的增容作用,改善了PDMS/PU共混体系的相容性,提高了该共混物的力学性能。其抗张强度由3.4MPa提高到7.6 MPa。
Polydimethylsiloxane-b-(ethylene oxide) block copolymer(DMS-b-OE) was used as compatibilizer for polydimethylsiloxane/polyurethane blends (PDMS/PU) and its effects on morphology, mechanical properties were investigated with SEM, DMA, stress-strain behaviour measurement. The results demonstrated that the compatibility between PDMS and PU was promoted and the mechanical properties were improved.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1995年第7期1134-1137,共4页
Chemical Journal of Chinese Universities
