| PVC/PP共混体系的PP结晶行为及晶态-非晶态共混体系的相态结构模型 |
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| 引用本文： | 金日光,舒文艺,励杭泉.PVC/PP共混体系的PP结晶行为及晶态-非晶态共混体系的相态结构模型[J].北京化工大学学报(自然科学版),1992(3). |
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| 作者姓名： | 金日光 舒文艺 励杭泉 |
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| 作者单位： | 北京化工学院高分子系，北京化工学院高分子系，北京化工学院高分子系 扬子石化公司研究院 |
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| 摘 要： | 从晶态-非晶态共混体系的晶相、非晶相相互作用出发,首次分析归纳山晶态-非晶态共混体系的8种相态结构模型。研究表明:PVC/PP共混物随着PP浓度的增加,PP的结晶度逐渐增大,结晶度随组成单调变化,而PVC/PP/CPE共混物的PP结晶度随组成变化曲线在PVC/PP/CPE=60/40/3处出现极大值,超过纯PP的结晶度,这与CPE诱导PP结晶有关。成核剂苯甲酸使共混物PP结晶度提高,晶区尺寸变小。
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| 关 键 词： | PVC/PP体系 结晶度 诱导结晶 相态结构模型 |
Crystallization Behavior of PP in PVC/PP Blends and the Morphological Structure Modes of Crystal-Noncrystal Blend Systems |
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| Jin Riguang,Shu Wenyi,Li Hangquan.Crystallization Behavior of PP in PVC/PP Blends and the Morphological Structure Modes of Crystal-Noncrystal Blend Systems[J].Journal of Beijing University of Chemical Technology,1992(3). |
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| Authors: | Jin Riguang Shu Wenyi Li Hangquan |
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| Institution: | Jin Riguang;Shu Wenyi;Li Hangquan Department of Polymer Science |
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| Abstract: | With the increment of PP's concentration in PVC / PP blends, the crystallinityof PP increases gradually, and varies with its concentration monotically. The crystallinity ofPP reaches a maximum, exceeding that or pure PP at PVC / PP / CPE= 60 / 40 / 3 (byweight).This phenomenon is bound up with CPE inducing PP's crystallization. The nucleat-ing agent phenylformic acid improves PP's crystallinity, and reduces the crystal dimension.Based on the interaction of crystal phase and noncrystal phase, the eight morphologicalstructure modes of the crystal-noncrystal blend systems are proposed. |
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| Keywords: | PVC/PP blend crystallinity inducing crystallization morphological structure mode |
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