| 高聚合度聚氯乙烯共混改性研究 Ⅱ.高聚合度聚氯乙烯/EPDM共混体系 |
| Study on Modification of HPVC by Blending Part 2.HPVC/EPDM Blend |
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| DOI： |
| 中文关键词: 高聚合度聚氯乙烯 EPDM 共混 |
| 英文关键词: HPVC EPDM blend |
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| 中文摘要: |
| 研究了共混方法、共混温度、共混时间、共混比对高聚合度聚氯乙烯(HPVC)/EPDM共混物结构和性能的影响。结果表明，采用一阶共混法可获得最佳共混效果，共混温度宜为170～175 ℃，HPVC/EPDM共混体系是热力学不相容体系，其较好的界面相容剂为氯化聚乙烯和聚乙烯接枝马来酸酐，用量以9份为宜(对于共混比为30/70的体系)。Kraus方程可以较好地表征HPVC/EPDM共混体系的界面作用强度。 |
| 英文摘要: |
| The influence of the bleding process，temperature，cycle and ratio on the structure and properties of HPVC/EPDM blend was studied.The results showed that the optimal blending effect could be obtained by using one-step process at 170～175 ℃；HPVC/EPDM blend was a thermodynamically incompatible system and 9 phr of CPE or PVC-g-MAH was suitable interface compatibilizer for the HPVC/EPDM blend with ratio of 30/70；the interface strength of HPVC/EPDM blend could be characterized with Kraus equation. |
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