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F_(max)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%。
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 F_(max) 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.
作者
徐建
徐向荣
杨欣霖
刘俊亮
张明
XU Jian;XU Xiangrong;YANG Xinlin;LIU Junliang;ZHANG Ming(Yangzhou University,Yangzhou 225002,China)
出处
《橡胶工业》
CAS
2022年第5期323-329,共7页
China Rubber Industry
基金
国家自然科学基金资助项目(51678292)。
