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首页> 外文期刊>Journal of Applied Polymer Science >Effect of the compatibilizer on the morphology and properties of dynamically cured PP/POE/epoxy blends
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Effect of the compatibilizer on the morphology and properties of dynamically cured PP/POE/epoxy blends

机译：增容剂对动态固化PP / POE /环氧共混物形态和性能的影响

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摘要

Dynamic vulcanization was successfully applied to epoxy resin reinforced polypropylene (PP)/ethylene-octene copolymer (POE) blends, and the effects of different compatibilizers on the morphology and properties of dynamically cured PP/POE/epoxy blends were studied. The results show that dynamically cured PP/POE/epoxy blends compatibilized with maleic anhydride-grafted polypropylene (MAH-g-PP) have a three-phase structure consisting of POE and epoxy particles dispersed in the PP continuous phase, and these blends had improved tensile strength and flexural modulus. While using maleic anhydride-grafted POE (MAH-g-POE) as a compatibilizer, the structure of the core-shell complex phase and the PP continuous phase showed that epoxy particles could be embedded in MAH-g-POE in the blends, and gave rise to an increase in impact strength, while retaining a certain strength and modulus. DSC analysis showed that the epoxy particles in the blends compatibilized with MAH-g-PP were more efficient nucleating agents for PP than they were in the blends compatibilized with MAH-g-POE. WAXD analysis shows that compatibilization do not disturb the crystalline structure of PP in the blends.
机译：动态硫化成功地应用于环氧树脂增强聚丙烯（PP）/乙烯-辛烯共聚物（POE）共混物，并研究了不同增容剂对动态固化PP / POE /环氧共混物形态和性能的影响。结果表明，与马来酸酐接枝聚丙烯（MAH-g-PP）相容的动态固化PP / POE /环氧共混物具有由POE和分散在PP连续相中的环氧颗粒组成的三相结构，这些共混物得到了改善抗拉强度和弯曲模量。当使用顺丁烯二酸酐接枝的POE（MAH-g-POE）作为增容剂时，核-壳配合物相和PP连续相的结构表明，环氧树脂颗粒可以嵌入共混物中的MAH-g-POE中，并且在保持一定强度和模量的同时提高了冲击强度。 DSC分析表明，与MAH-g-POE相容的混合物中，与MAH-g-PP相容的混合物中的环氧颗粒是更有效的PP成核剂。 WAXD分析表明，相容性不会干扰共混物中PP的晶体结构。

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