| 界面张力对高分子共混物梯度相形态形成的影响研究 |
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| 引用本文： | 肖天晶,谢续明.界面张力对高分子共混物梯度相形态形成的影响研究[J].功能高分子学报,1996,9(4):501-506. |
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| 作者姓名： | 肖天晶 谢续明 |
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| 作者单位： | 清华大学化学工程系!北京100084 |
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| 基金项目： | 国家自然科学基金，国家教委优秀年轻教师基金，石化总公司基础性研究基金资助项目 |
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| 摘 要： | 研究了界面张力对ＰＰ／ＥＶＡ共混体系梯度相形态形成的影响。首先将ＥＶＡｃ进行皂化反应得到一系列－ＯＨ基含量不同即极性不同的ＥＶＡ，然后将这些ＥＶＡ分别与ＰＰ共混从而得到一系列相界面张力不同的共混物。说明通过对共混物相界面张力的调整，可以达到随意控制梯度相形态形成速度的目的。
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| 关 键 词： | 梯度 相形态 分散相 界面张力 高聚物 共混物 |
Effect of Interfacial Tension on the Formation of the Gradient Morphology of Polymer Blends |
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| Xiao Tianjing Xie Xuming.Effect of Interfacial Tension on the Formation of the Gradient Morphology of Polymer Blends[J].Journal of Functional Polymers,1996,9(4):501-506. |
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| Authors: | Xiao Tianjing Xie Xuming |
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| Abstract: | Previous researches showed that polypropylene(PP) and ethylene vinyl ace-tate(EVAc) blends could take the form of gradient morphology in the vertical section by annealing. In this research, in order to study the effect of interfacial tension on the formation of the gradient morphology of polymer blends, esterification reaction was carried out to obtain several kinds of EVA with different content of -OH group. The polarity of these EVA is different. Then these EVA were blended with PP respectively. Thus a series of PP/EVA blends with different interfacial tension were obtained. It was found that all the PP/EVA blends could form the structure with gradient morphology in the vertical section of the samples as PP/EVAcblends.The vertical distribution of EVA component in each blend was analyzed by using an image analyzer. The results showed that the greater the interfacial tension between PP and EVA, the larger the gradient tendency in the blends. |
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| Keywords: | Ethylene vinyl acetate Polypropylene Gradient morphology Dispersed phase Interfacial tension |
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