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首页> 外文期刊>Journal of Applied Polymer Science >Chemorheological study of compatibilized blends of low-density polyethylene and polydimethyl siloxane rubber
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Chemorheological study of compatibilized blends of low-density polyethylene and polydimethyl siloxane rubber

机译：低密度聚乙烯和聚二甲基硅氧烷橡胶相容混合物的化学流变学研究

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Compatibilization of the blends of polydimethyl siloxane (PDMS) rubber and low-density polyethylene (LDPE) was achieved through reactive processing. during extrusion in a Monsanto Processability Tester (MPT). The chemorheological characteristics of 50: 50 LDPE : PDMS blends with varying proportions (0-8 wt %) of ethylene comethyl acrylate (EMA) were investigated at three different temperatures (170, 190, and 210degreesC) and four different shear rates (61.3, 122.6, 306.6, and 613.1 s(-1)). It was found that EMA reacts with vinyl groups of PDMS rubber at a temperature of 190degreesC during extrusion through the capillary of MPT, forming EMA-grafted-PDMS rubber (EMA-g-PDMS), which acts as the compatibilizer for the blend systems. The results. are based on IR spectroscopy, melt rheology, and phase morphology of the blends. (C) 2003 Wiley Periodicals, Inc. [References: 25]
机译：聚二甲基硅氧烷（PDMS）橡胶和低密度聚乙烯（LDPE）的共混物通过反应处理实现了相容性。在孟山都可加工性测试仪（MPT）中进行挤出。在三种不同的温度（170、190和210°C）和四种不同的剪切速率（61.3，6）下，研究了比例不同（0-8 wt％）的乙烯丙烯酸甲酯（EMA）的50：50 LDPE：PDMS共混物的化学流变性122.6、306.6和613.1 s（-1））。发现在通过MPT的毛细管挤出期间，EMA在190℃的温度下与PDMS橡胶的乙烯基反应，形成了EMA接枝的PDMS橡胶（EMA-g-PDMS），其用作共混体系的增容剂。结果。基于共混物的红外光谱，熔体流变学和相形态。 （C）2003 Wiley Periodicals，Inc. [参考：25]

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