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首页> 外文期刊>Applied Surface Science >Enrichment Of Poly(methyl Methacrylate) And Its Graft Copolymer Of Polybutadiene On The Surface Of Polypropylene Blends
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Enrichment Of Poly(methyl Methacrylate) And Its Graft Copolymer Of Polybutadiene On The Surface Of Polypropylene Blends

机译：聚丙烯共混物表面上聚甲基丙烯酸甲酯及其聚丁二烯接枝共聚物的富集

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摘要

Poly(methyl methacrylate) (PMMA) and its graft copolymer of polybutadiene were used as the macromolecular surface modifiers of polypropylene. The enrichment and diffusion of the modifiers onto the surface of polypropylene blends were investigated using FTIR-ATR, CDA and SEM. It has been found that the selective aggregation of the modifier component on the surface of polypropylene was mainly affected by the content, molecular weight and size of the segregated domains. Lower content and higher surface energy die were in favor of the enrichment of the additive. PMMA with higher molecular weight showed larger domain phase and lower diffusion velocity which resulted in less enrichment on the surface of PP blends.
机译：聚（甲基丙烯酸甲酯）（PMMA）及其聚丁二烯的接枝共聚物被用作聚丙烯的大分子表面改性剂。使用FTIR-ATR，CDA和SEM研究了改性剂在聚丙烯共混物表面上的富集和扩散。已经发现，改性剂组分在聚丙烯表面上的选择性聚集主要受分离域的含量，分子量和大小影响。较低的含量和较高的表面能模头有利于添加剂的富集。分子量较高的PMMA表现出较大的畴相和较低的扩散速度，导致PP共混物表面上的富集较少。

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