液体聚异戊二烯橡胶在轮胎胎肩胶中的应用

Application of Liquid Isoprene Rubber in Shoulder Compound of Tire

研究自制液体聚异戊二烯橡胶(LIR)在轮胎胎肩胶中的应用,并与芳烃油和进口LIR进行对比。结果表明:与采用芳烃油的胶料相比,采用LIR的胶料混炼和挤出工艺性能较好,门尼焦烧时间略短,硫化速度相当;硫化胶撕裂强度较低,其余物理性能较优或相当,生热较低,热稳定性较好。自制LIR在胎肩胶中的应用性能达到或超过进口LIR水平。

The application of self-made liquid isoprene rubber（LIR） in the shoulder compound of tire was investigated, and compared with aromatic oil and imported LIR. The results showed that, when compared with compound containing aromatic oil,the mixing behavior and extrudability of compound containing LIR were better,the scorch time was slightly shortened, the curing rate was similar, the tear strength was lower, other physical properties were better or similar, the heat build-up was lower, and the thermal stability was better, The performance of self made LIR in shoulder compound met or exceeded the level of imported LIR in the shoulder compound.