共查询到17条相似文献,搜索用时 78 毫秒
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橡胶工业用各种各样的颗粒填料来提高胶料的物理性能。对于轮胎胎面胶,炭黑仍是最主要的填料,因为它能赋予胶料优异的耐磨性、牵引性和耐久性。据报道,白炭黑和其它特种填料与炭黑并用,能够改善轿车轮胎胎面胶的某些特定性能。对白炭黑作为具有良好牵引性并具有低滚动... 相似文献
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混炼工艺对炭黑/白炭黑补强NR胶料性能的影响 总被引:1,自引:0,他引:1
研究混炼工艺对炭黑/白炭黑补强NR胶料性能的影响.结果表明,就压缩疲劳和耐裂口增长等性能而言,延长混炼时间、除白炭黑和硅烷偶联剂外的小料尽量后加的混炼方案和先制成炭黑母炼胶、再加入白炭黑和硅烷偶联剂,然后加硫化剂的混炼方案较好;就生产效率而言,将炭黑以及白炭黑和硅烷偶联剂分别制成母炼胶,然后与硫化剂合并混炼的方案较好,其综合物理性能也可满足生产需要,实用性较强. 相似文献
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炭黑和白炭黑是橡胶主要的补强填料,可以显著提升橡胶的性能。虽然炭黑和白炭黑有各自的优势,但白炭黑/炭黑共用可以更好地提高天然橡胶(NR)的物理性能和动态性能。本工作用不同用量比的白炭黑/炭黑复合填料(用量50份)补强NR,考察胶料的拉伸强度、撕裂强度、耐磨性能、抗裂口增长性能、生热性能和滚动阻力等。结果表明,复合填料的白炭黑用量为20份和30份时NR胶料综合性能较好。 相似文献
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The recycling or reuse of waste rubber by means of blending together with polymeric materials in addition of filler such as hybrid carbon black and silica (CB/Sil) to a polymer system can provides an opportunity to explore alternative product specifications. Therefore, in this work the investigation of recycled rubber blends based on styrene butadiene rubber/recycled acrylonitrile butadiene rubber (SBR/NBRr) blends reinforced with 50/0, 40/10, 30/20, 20/30, 40/10, 0/50 phr of carbon black/silica (CB/Sil) hybrid filler treated with and without silane coupling agent (Si69) were determined. Cure characteristics, tensile properties, and morphological behavior of selected SBR/NBRr blends at a fix 85/15 blend ratio were evaluated. Results showed that, cure time t90, minimum torque (ML), and maximum torque (MH) of CB/Sil hybrid fillers filled SBR/NBRr blends with and without Si69 increased as silica content increased. However, t90 and ML of SBR/NBRr blends with Si69 were lower than without Si69 except for (MH). The optimum scorch time (ts2) of SBR/NBRr blends with and without Si69 was obtained at 30/20 phr of CB/Sil hybrid filler. However, ts2 of SBR/NBRr blends with Si69 were longer than SBR/NBRr blends without Si69. The incorporation of Si69 has improved the tensile properties [(tensile strength, elongation at break (Eb), stress at 100% elongation (M100), and stress at 300% elongation (M300)] of CB/Sil hybrid fillers filled SBR/NBRr blends. These properties were influenced by the degree of crosslinked density as the silica content is increased. Scanning electron microscopy (SEM) of the tensile fracture surfaces indicated that, with the addition of Si69 improved the dispersion of hybrid fillers and NBRr in SBR/NBRr matrix. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 相似文献
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白炭黑/炭黑并用比对轿车轮胎胎面胶性能的影响 总被引:1,自引:2,他引:1
探讨白炭黑/炭黑并用比对乳聚丁苯橡胶ESBR1721和溶聚丁苯橡胶SSBR Y837V2轿车轮胎胎面胶性能的影响.结果表明,用大应变下混炼胶的tanδ值确定的白炭黑/炭黑体系分散性与用炭黑分散性测试仪测得的结果一致,硫化胶滚动损失和侧向因数分别与粘弹谱仪测试的60和0 ℃时的tanδ值有较好的相关性.随着白炭黑/炭黑并用比的增大,ESBR1721和SSBR Y837V2硫化胶60 ℃时的tanδ值和滚动损失线性下降, 0 ℃时的tanδ值和侧向因数线性递增,耐磨性能略有下降.可根据胎面胶的性能要求,选取适合的白炭黑/炭黑并用比. 相似文献
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