Effect of nanosilica on the co-continuous morphology of polypropylene/polyolefin elastomer blends
Effect of nanosilica on the co-continuous morphology of polypropylene/polyolefin elastomer blends
复制标题
DOI：
10.1016/j.polymer.2010.01.018
复制
发表时间：
2010-03-02
期刊：
影响因子：
4.6
通讯作者：
Park, C. B.
中科院分区：
文献类型：
--
作者：
Lee, S. H.;Kontopoulou, M.;Park, C. B.
研究了纳米SiO2对聚丙烯（PP）/聚烯烃弹性体（POE）共混物形态结构的影响。未填充的共混物在PP/POE重量比为50/50时显示相转化和共连续结构。在马来酸化PP增容剂的存在下添加SiO2后，获得由分散在PP相中的细长POE颗粒组成的更精细的结构。这种转变与仅局限于PP基质内的细分散SiO2颗粒的存在有关。的冲击性能，弯曲和杨氏模量的共混物显着增加，指向的协同效应所产生的增强PP相的存在下，含有大量的细分散的弹性体相。(C)2010爱思唯尔有限公司版权所有。
This paper reports the effect of nanosilica, (SiO2) on the morphology of co-continuous immiscible polypropylene (PP)/polyolefin elastomer (POE) blends. The unfilled blends display phase inversion and a co-continuous structure at a ratio of 50/50 PP/POE by weight. Upon addition of SiO2 in the presence of maleated PP compatibilizer a finer structure, consisting of elongated POE particles dispersed within the PP phase is obtained. This transformation is associated to the presence of finely dispersed SiO2 particles that are localized exclusively within the PP matrix. The impact properties, flexural and Young's moduli of the blends increase significantly, pointing to a synergistic effect arising from the presence of the reinforced PP phase, containing high amounts of the finely dispersed elastomeric phase. (C) 2010 Elsevier Ltd. All rights reserved.