白炭黑在宽基工程机械轮胎胎面基部胶中的应用

摘要

研究白炭黑部分替代炭黑在宽基工程机械轮胎胎面基部胶中的应用。结果表明：采用适量白炭黑部分替代炭黑，不加入偶联剂，同时使用炭黑N330替代炭黑N220和炭黑N326，胶料的300%定伸应力和撕裂强度提高，压缩生热明显降低，拉伸强度和拉断伸长率有所降低，但仍保持在较高的水平；成品轮胎物理性能符合国家标准要求，生产成本降低。%In this study, the application of silica in the tread base compound of wide base OTR tire was investigated. The experimental testing results showed that when carbon black N220 and N326 in the original formulation were replaced by using silica and carbon black N330, without the use of silane coupling agent, the modulus at 300% elongation and tear strength of the vulcanizates increased, the heat build-up decreased signiifcantly; the tensile strength and elongation at break decreased, but still remained at high levels. The physical properties of the ifnished tire met the requirements of national standards, and the production cost was reduced.