摘要
本文研究刚性聚合物（ＰＳ、ＳＡＮ、ＰＭＭＡ）对ＰＶＣ／ＣａＣＯ３共混体力学性能和流变行为的影响。结果表明，填加少量刚性聚合物对ＰＶＣ／ＣａＣＯ３共混体的拉伸性能影响不大，冲击强度有所提高；ＰＳ和ＳＡＮ均能较好地促进ＰＶＣ或ＰＶＣ／ＣａＣＯ３体系的塑化，而ＣａＣＯ３和ＰＭＭＡ并用填充时才具有一定的促进ＰＶＣ塑化作用，刚性聚合物ＰＳ和ＳＡＮ还能改善共混熔体的流动性。
Abstract The effects of rigid polymers (PS.SAN \ PMMA)on the mechanical properties and rheological behaviors of PVC/CaCO3 blends were studied in the paper. The results showed thatthe tensile strength and tensile yield changed slightly, and the impact strength increasedslightly by filling a little amount of rigid polymers to PVC/CaCO3 blends. PS and SANcould improve the plasticizing behaviors and flow properties of PVC and PVC/CaCO3. Theplasticizing behaviors of PVC were not improved by filling CaCO3 or PMMA, but were improved slightly by filling CaCO3 and PMMA together.
出处
《塑料》
CAS
CSCD
1995年第2期38-41,56,共5页
Plastics
基金
国家自然科学基金
