| 动态硫化PVC/SBR共混体系的研究 |
| Study on Dynamically-cured PVC/SBR Blend |
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| DOI： |
| 中文关键词: 动态硫化 PVC SBR 共混 |
| 英文关键词: dynamic vulcanization PVC SBR blend |
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| 中文摘要: |
| 采用动态硫化法制备了PVC/SBR共混物，考察了橡塑比、硫化体系、相容剂及PVC交联对共混物性能的影响。结果表明，当PVC/SBR并用比为75/25，相容剂NBR/氯化聚乙烯并用比为2.5/2.5，采用半有效或半有效加2份交联剂DCP的硫化体系时，共混物综合性能较好。在PVC中加入0.4份促进剂NA-22可明显改善共混物的压缩永久变形。 |
| 英文摘要: |
| A PVC/SBR blend was prepared through dynamic vulcanization. The influence of rubber/plastics ratio，curing system，compatibilizer and PVC crosslink on the properties of blend was investigated. The results showed that the optimum comprehensive properties of the blend were obtained when the PVC/SBR（75/25） blend，the NBR/CPE（2.5/2.5）compatibilizer，the semi-EV system or semi-EV system+ 2phr of DCP were used. The compression set could be significantly improved when 0.4 phr of accelerator NA-22 was added to PVC. |
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