共查询到18条相似文献,搜索用时 78 毫秒
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通过在载重斜交轮胎胎肩垫胶、缓冲胶配方中加入橡胶多功能抗返原硫化剂HVA-2的应用研究,表明其交联补偿作用充分弥补了在热的条件下不稳定多硫键的损失,提高了硫化胶的抗硫化返原性能,从而改善了硫化胶的热稳定性,有效地保持了胶料过度硫化后的交联密度和物理机械性能。 相似文献
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从硫化体系和补强体系入手优化全钢载重子午线轮胎的胎肩垫胶配方。结果表明:与半有效硫化体系胶料相比,普通硫化体系全钢载重子午线轮胎胎肩垫胶的硫化速度略慢,物理性能较好,耐热老化性能略差,生热略高,成品轮胎的耐久性能较好;添加白炭黑的胶料门尼粘度略高,门尼焦烧时间略短,硫化速度较慢;硬度、定伸应力和撕裂强度提高,拉伸强度、拉断伸长率、回弹值降低,生热减小,工艺性能较差,需要调整混炼工艺;添加白炭黑的普通硫化体系胎肩垫胶的综合性能较好。 相似文献
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对全钢载重子午线轮胎胎肩垫胶的配方进行优化。结果表明:通过加入多功能交联剂WY988,并适当调整补强体系,胶料的硫化返原程度减轻,硫化胶的邵尔A型硬度、定伸应力和回弹值增大,拉伸强度、撕裂强度和损耗因子减小,压缩生热降低;成品轮胎的耐久性能提高。 相似文献
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The effect of the antireversion agent 1,3 bis(citraconimidomethyl)benzene has been studied in a truck compound and a silica containing off‐the‐road compound. Laboratory results show that the antireversion agent significantly improves compound reversion resistance by means of a crosslink compensation mechanism. This improved reversion resistance provides a stabilization of viscoelastic properties on overcure and aging, which in turn should improve the performance of heavy duty tires with regard to rolling resistance and heat buildup throughout their service life. The antireversion agent is particularly effective in stabilizing viscoelastic properties in combination with a reduced level of the saline coupling agent, TESPT. This offers improved tire performance at no cost penalty. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 3689–3694, 2002 相似文献