Co-continuous morphologies in polymer blends: the influence of the interfacial tension

Co-continuous morphologies in polymer blends: the influence of the interfacial tension
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DOI：
10.1016/s0032-3861(98)00307-3
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发表时间：
1999-02
期刊：
Polymer
影响因子：
4.6
通讯作者：
R. Willemse;A. P. D. Boer;J. Dam;A. Gotsis
R. Willemse;A. P. D. Boer;J. Dam;A. Gotsis
中科院分区：
化学2区
文献类型：
--
作者：
R. Willemse;A. P. D. Boer;J. Dam;A. Gotsis

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的界面张力的影响的组成范围内，完全共连续的聚合物共混物结构可以存在的研究与选定的基质粘度和粘度比的不同的共混物。发现全共连续性的临界组成随着界面张力的增加而增加，缩小了组成范围。界面张力对临界组成的影响由两个相互抵消的作用组成，即共连续形态的稳定性和相尺寸。后者的影响小于前者。实验结果可以定量预测的模型发表较早，提供的相尺寸分别测量。
The influence of the interfacial tension on the composition range within which fully co-continuous polymer blend structures can exist is studied for different blends with selected matrix viscosities and viscosity ratios. The critical composition for full co-continuity is found to increase with increasing interfacial tension, narrowing the composition range. The effect of the interfacial tension on the critical composition is composed of two counteracting effects, i.e. the stability of the co-continuous morphology and the phase dimensions. The latter effect is smaller than the former. The experimental results can quantitatively be predicted by a model published earlier, provided the phase dimensions are measured separately.