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| 马来酸酐接枝液体聚丁二烯对丁腈橡胶性能的影响 |
| Influence of Maleic Anhydride Grafted Liquid Polybutadiene on the Properties of NBR |
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| DOI： |
| 中文关键词: 马来酸酐接枝液体聚丁二烯；丁腈橡胶；并用胶；耐油性能；高低温压缩回弹性能 |
| 英文关键词: maleic anhydride grafted liquid polybutadiene； NBR； rubber blend； oil resistance； high and low temperature compression resilience |
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| Author Name | Affiliation | | Lei Haijun | Northwest Rubber and Plastic Research and Design Institute | | Zhang Jizhong | Northwest Rubber and Plastic Research and Design Institute | | Gong Wenfeng | Northwest Rubber and Plastic Research and Design Institute | | Zhai Guangyang | Northwest Rubber and Plastic Research and Design Institute |
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| 中文摘要: |
| 采用机械共混法制备丁腈橡胶（NBR）/马来酸酐接枝液体聚丁二烯（MA-LB）并用胶，研究MA-LB对NBR性能的影响。结果表明：随着MA-LB用量增大，胶料的焦烧性能改善，硫化时间延长；低丙烯腈含量NBR胶料硬度和拉断永久变形不变，拉断伸长率逐渐增大，拉伸强度先增大后减小（在MA-LB用量为10份时拉伸强度最大），耐低温性能大幅提高；高丙烯腈含量的NBR胶料硬度变化不大，拉伸强度减小，拉断伸长率和拉断永久变形逐渐增大。MA-LB用量为10份时胶料的高低温压缩回弹性能和耐油性能良好，综合性能较佳。 |
| 英文摘要: |
| In this study，the blends of NBR/maleic anhydride-grafted liquid polybutadiene (MA-LB) were prepared by mechanical blending，and the influence of the MA-LB on the properties of the blends was investigated.It was found that when the amount of MA-LB in the blends increased，the scorch property of the compound was improved and the curing time was extended.For the NBR with low acrylonitrile content，when MA-LB amount increased，the hardness and permanent tensile set of the vulcanizates changed little，the elongation at break increased，the tensile strength increased，but reached maximum value when MA-LB amount was 10 phr，and then decreased.For the NBR with high acrylonitrile content，when MA-LB amount increased，the hardness didn’t change，the tensile strength decreased，and the elongation at break and permanent tensile set increased gradually.The experimental results showed that when the MA-LB amount was 10 phr，high and low temperature compression resilience and the oil resistance of the blends were excellent，and overall performance was good. |
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