硅树脂对双组分室温硫化硅橡胶耐热性能的影响

研究硅树脂用量对双组分室温硫化硅橡胶耐热性能的影响。结果表明：随着硅树脂用量的增大，硅橡胶的邵尔A型硬度、拉伸强度和拉断伸长率呈增大趋势，耐热性能先提高后降低；当硅树脂用量为8份时，硅橡胶的拉伸性能和耐老化性能最佳；当硅树脂用量为6份时，硅橡胶的耐热性能最佳。;The effect of addition level of silicone resin on the heat resistance of two-component room temperature vulcanized silicone rubber was investigated.The results showed that，as the addition level of silicone resin increased，the Shore A hardness，tensile strength and elongation at break of silicone rubber tended to increase，and the heat resistance increased at first and then decreased.When the addition level of silicone resin was 8 phr，the best tensile property and aging property of silicone rubber were obtained.When the addition level of silicone resin was 6 phr，the best heat resistance of silicone rubber was achieved