| 微波修饰工艺对磁性丁苯橡胶Payne效应及其性能的影响 |
| Effect of Microwave Modification on Payne Effect and Properties of Magnetic SBR |
| 投稿时间：2021-11-15 修订日期：2021-11-15 |
| DOI：10.12136/j.issn.1000-890X.2022.05.0323 |
| 中文关键词: 磁性丁苯橡胶 锶铁氧体 微波修饰 Payne效应 结合橡胶含量 拉伸性能 阻尼性能 |
| 英文关键词: magnetic SBR strontium ferrite microwave modification Payne effect bound rubber content tensile property damping property |
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| 中文摘要: |
| 为解决磁性丁苯橡胶（SBR）界面问题，对锶铁氧体（SrM）表面进行微波辅助原位修饰，通过改变微波处理工艺条件制备不同的SrM/SBR共混物，研究共混物的Payne效应与磁性SBR的拉伸性能和阻尼性能的关系。结果表明：通过改变微波处理工艺条件可以调控SrM/SBR共混物中铁氧体表面结合橡胶含量，过长的微波处理时间或过大的微波处理功率都会导致SrM/SBR共混物的结合橡胶含量下降；SrM/SBR共混物的Payne效应与其结合橡胶含量和SrM/SBR混炼胶的Fmax具有较好的相关性，并且与SrM/SBR硫化胶的拉伸强度和阻尼性能的变化趋势基本吻合；微波处理功率为800 W、微波处理时间为6 min时制备的磁性SBR具有最佳的阻尼性能和较大的拉伸强度，相对于未经微波处理的磁性SBR，其损耗因子-温度曲线面积增大7.3%。 |
| 英文摘要: |
| In this study，the surface of SrM filler was in situ modified by using microwave to solve the interface problem of magnetic SBR，and different strontium ferrite（SrM）/styrene-butadiene rubber（SBR）magnetic composites were prepared by changing microwave treatment process conditions. The relationship between the Payne effect of the SrM/SBR blends and the tensile property and damping property of magnetic SBR was investigated. The results showed that the bound rubber content on the ferrite surface in SrM/SBR
blends could be regulated by changing the microwave treatment process conditions，and it was found that excessive microwave treatment time or excessive microwave treatment power would lead to a decrease of the bound rubber content of SrM/SBR blends. The Payne effect of SrM/SBR blends had good correlations with its bound rubber content and Fmax of SrM/SBR compounds，and the changing trends of the Payne effect of SrM/SBR blends and the tensile strength and damping properties of SrM/SBR vulcanizates were basically consistent. The magnetic SBR prepared when the microwave treatment power was 800 W and the microwave treatment time was 6 min had the best damping property and high tensile strength，and its loss factortemperature curve area increased by 7.3% compared with the magnetic SBR without microwave treatment. |
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