炭黑对子午线轮胎胎面胶导热特性的影响

采用正交试验法研究炭黑N330，N339和N351用量对子午线轮胎胎面胶导热特性的影响。结果表明，3种炭黑对胶料导热系数的影响顺序由大到小为N351，N339，N330；炭黑N351/N339/N330的最佳用量比为35/35/20；胶料导热系数随同一系列炭黑粒径的增大而增大，并与温度具有较好的线性关系；胶料导热系数随炭黑总用量的增大呈上升趋势。;The influences of the black N330，N339 and N351 on the heat conductivity of radial tire tread were investigated with orthogonal experiment.The results showed that the influences of 3 types of carbon black on the heat conductivity of tread were in the order of N351＞N339＞N330；the optimum addition levels of black N351，N339 and N330 were 35，35 and 20 phr respectively；the heat conductivity of tread increased with the particle size of the same series black and quite linearly with the temperature；and the heat conductivity of tread increased with the total levels of carbon black