| 第三相界面对高分子共混物粗化过程的影响研究 |
| |
| 引用本文： | 谢续明,肖天晶,杨勇.第三相界面对高分子共混物粗化过程的影响研究[J].高等学校化学学报,1998,19(11):1864-1866. |
| |
| 作者姓名： | 谢续明 肖天晶 杨勇 |
| |
| 作者单位： | 清华大学国家教育委员会先进材料开放实验室, 化工系, 高分子研究所, 北京, 100084 |
| |
| 基金项目： | 国家自然科学基金,石油化工总公司基础性研究基金,国家教育委员会优秀年轻教师基金 |
| |
| 摘 要： | 共混物相分离的机理已有研究［１］．但对共混物分散相的粗化过程的研究则不多见．１９７７年，Ｃａｈｎ等［２］预言第三相界面与低分子共混物之间存在的浸润作用对相分离过程应有较大影响．近年Ｔａｎａｋａ等［３］的研究结果表明，在几何空间受限的条件下，含有小分子...
|
| 关 键 词： | 聚丙烯 乙烯-醋酸乙烯酯 粗化 第三相界面 浸润作用 |
| 收稿时间： | 1997-09-02 |
Studies on the Effects of the Third Phase on the Coarsening of Incompatible Polymer Blends |
| |
| XIE Xu-Ming,XIAO Tian-Jing,YANG Yong.Studies on the Effects of the Third Phase on the Coarsening of Incompatible Polymer Blends[J].Chemical Research In Chinese Universities,1998,19(11):1864-1866. |
| |
| Authors: | XIE Xu-Ming XIAO Tian-Jing YANG Yong |
| |
| Institution: | Advanced Material Key Laboratory of National Education Commission, Department of Chemical Engineering, Institute of Polymer Science and Engineering, Tsinghua University, Beijing, 100084 |
| |
| Abstract: | In this study, phase contrast microscope and computer image analyzer were used to study the coarsening process of the dispersed phase of the polymer blend (PP/EVAc) under 2 dimensional and 3 dimensional conditions. The results showed that under 3-dimensional condition, the growth of the dispersed phase follows r3～t1.01, corresponding to the evaporation condensation theory of LifshitzSlyozov--r3～t, while under 2-dimensional condition the growth law is r3～t1.32. The growth speed of the dispersed droplets under 2-dimensional condition is faster than that under 3-dimensional condition. This difference is caused by the wetting effects between the third phase and polymer blend. |
| |
| Keywords: | Polypropylene Ethylene vinyl acetate copolymer Coarsening The third phase interface Wetting effect |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 |
