CNT及Al2O3增强NR制备低生热高导热橡胶复合材料的工程化研究

橡胶材料的粘弹特性使其在周期性载荷下生热很大,而橡胶是热的不良导体,容易造成热积累,对于轮胎来说则容易产生热损伤。为了解决这一难题,风神轮胎股份有限公司与北京化工大学在国家973计划课题的支持下,对低生热高导热橡胶复合材料进行了工程化研究。首先通过进行小型密炼机混炼实验,与前期开炼机及对比胶相比,性能达到了制备轮胎要求,之后采用低温一次法炼胶技术进行了规模化生产,可以实现大规模连续化生产,制备的碳纳米管导热胶与企业对比胶相比导热率提高50%,并成功将导热胶加入到工程子午胎基部胶中,轮胎性能良好。

The engineering study on CNT and Al2O3 enhancedS NR preparation of low heat and high thermal conductivity rubber composites

The viscoelastic properties of rubber material make it has large quantity of heatSunder the periodic load, while the rubber is a poor conductor of heat, it is easy to cause the heat accumulation, so the tires produce thermal damage easily.In order to solve this problem, Aeolus Tyre Co., Ltd and Beijing University of Chemical Technology in support of the project of the national basic research program of China (973 Program), on low heat high thermal conductive rubber composites were engineering research. Firstly, through the mixing experiment of small mixer, performance results has reached the requirements of the preparation of tires compared with the test using two roll mill. Then using a method of mixing technology at low temperatureSto achieve large scale continuous production, The thermal conductivity of the prepared carbon nanotubes thermal conductive rubber was improved by 50% compared with the contrast rubber.SThe thermal conductive rubber was successfully added to the engineering tire, and the tire performance was good.