摘要
采用熔融共混的方法制备了聚甲基乙撑碳酸酯(PPC)/黏土和PPC/乙烯-乙烯醇共聚物(EVOH)/黏土纳米复合材料,测试了复合材料的流变性能和阻氧性能,并对其微观形态进行了分析。结果表明,当基材PPC相对分子质量较高时,PPC/黏土复合材料的复数黏度、储能模量和损耗模量也较高;随着黏土和相容剂马来酸酐接枝聚乙烯(PE-g-MAH)的添加,PPC/EVOH复合材料的复数黏度和损耗模量明显增加,PE-g-MAH的加入使PPC、EVOH和黏土之间的界面作用力增强,改善了PPC与EVOH的相容性,同时提高了PPC/EVOH复合材料的阻氧性能。
Nanocomposites of poly （propylene carbonate） （PPC）/clay and PPC/ethylene-vinyl alcohol （EVOH）/clay were prepared by melt blending. Rheological behavior, morphology, and oxygen barrier resistance of nanocomposites were investigated. It was found that higher molecular weight of PPC may impart the composite higher complex viscosity, storage and lose moduli. With the addition of clay and PE-g-MAH, complex viscosity and moduli of PPC/EVOH composites were increased. The interfacial action among PPC, EVOH, and clay was enhanced with the addition of PE-g-MAH. By the introduction of clay and PE-g-MAH, both the compatibility and oxygen barrier resistance of PPC and EVOH composites increased significantly.
出处
《中国塑料》
CAS
CSCD
北大核心
2013年第9期76-80,共5页
China Plastics
基金
中国博士后基金(2012M511548)
广州市珠江科技新星(2013J2200013)
