共查询到18条相似文献,搜索用时 140 毫秒
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张艳霞程安仁汪文昭矫阳陆永俊刘江伟郭月莹 《橡胶科技》2017,15(5)
研究炭黑N234和深冷精细胶粉对天然橡胶(NR)/顺丁橡胶(BR)轮胎胎面胶性能的影响。结果表明:随着炭黑N234用量增大,混炼胶的门尼粘度和硫化速率增大,硫化胶的300%定伸应力和拉伸强度增大,拉断伸长率和DIN磨耗量减小,撕裂强度、压缩生热和永久变形变化不大,耐屈挠性能提高;随着深冷精细胶粉用量增大,混炼胶的门尼粘度和硫化速率增大,硫化胶的300%定伸应力和DIN磨耗量变化不大,拉伸强度和拉断伸长率减小,撕裂强度、压缩生热和永久变形呈增大趋势,耐屈挠性能下降;深冷精细胶粉部分替代炭黑应用于轮胎胎面胶中可降低原材料成本,利于环保。 相似文献
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研究高性能载重子午线轮胎天然橡胶(NR)/反式丁戊橡胶(TBIR)(并用比90/10)胎面胶的配方优化。结果表明:相比炭黑补强NR/TBIR并用胶,炭黑/白炭黑(并用比40/15)补强NR/TBIR并用胶的硬度、定伸应力、拉伸强度、撕裂强度和耐磨性能略有降低,抗湿滑性能保持不变,滚动阻力降低20%,压缩温升下降17%;在该配方基础上增大10%的促进剂和硫黄用量,得到优化配方。相比炭黑补强NR胎面胶,优化配方NR/TBIR胎面胶具有优异的力学性能和动态性能,在拉伸强度和抗湿滑性能基本不变的前提下,滚动阻力降低26%,压缩温升下降20%,耐磨性能提高5%。本优化配方适用于低滚动阻力高性能载重子午线轮胎胎面胶。 相似文献
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Mehdi Razzaghi Kashani 《应用聚合物科学杂志》2009,113(2):1355-1363
Mechanical and dynamic‐mechanical properties of a typical tire tread compound reinforced with one part aramid short fibers were investigated in order to predict the effects of fibers on tire tread performances such as rolling resistance and traction. Rubber processing, including mixing and extrusion, was performed in an industrial scale. Fiber orientation as a result of extrusion was evaluated quantitatively and qualitatively using mechanical anisotropy in swelling and scanning electron microscopy, respectively. Unidirectional tensile tests revealed higher modulus, but slightly lower strength and elongation at break for the composites stretched in the longitudinal (orientation) and transverse directions than those for the isotropic reference compound with no fiber. Dynamic mechanical thermal analysis showed that relative values of loss factor for the longitudinal and transverse composites and the reference compound depended on the state of polymer as glassy or rubbery. Therefore, a high loss factor at lower temperatures and a low loss factor at higher temperatures predicted a balanced improvement of tire traction and rolling resistance as a result of fiber addition. Heat build‐up and abrasion experiments showed that addition of fiber did not deteriorate other performances of tire tread. Also, the fibers had negligible effects on processing and vulcanization characteristics of the composite. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009 相似文献
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研究了莱茵新Rhenosin TT100时NR/BR/SBR胎面胶硫化特性、物理机械性能和发黑与其它配合剂在肢料中的分散性以度耐磨性能的影响。结果表明,谈助剂加入NR/BR/SBR配方中可以明显改善炭黑等配合剂在胶料中的分散性,提高挤出胎面肢断面的致密性,提高了撕裂性能、耐磨性。轮胎实际里程试验表明,采用2份Rhenosin TT100的胎冠肢的轮胎耐磨性优异。 相似文献
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研究环保型促进剂XT-580等量替代促进剂NOBS在载重轮胎胎面胶和胎侧胶中的应用效果.结果表明,促进剂XT-580等量替代促进剂NOBS对胶料硫化特性和物理性能无不利影响,其中胎侧胶强伸性能和胎面胶耐磨性能稍有提高;试制的7.50-16 12PR轮胎综合物理性能和速度性能稍优于正常生产轮胎.使用促进剂XT-580能降低成本. 相似文献
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研究环氧化天然橡胶(ENR)在全钢载重子午线轮胎胎面胶中的应用。结果表明:用ENR部分取代天然橡胶(NR),胶料的门尼粘度增大,焦烧时间延长,强伸性能略有下降,抗湿滑性能显著改善,耐磨陛能提高,压缩生热略有升高。 相似文献
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