It is essential to keep the balance among rolling resistance, wet skid resistance and wear resistance (the so-called devil's triangle) of tire treads so as to ensure the reliability and safety of the vehicles. For this purpose, hexamethyl-disiloxane (HMDS) and carboxylated polyethylene vinyl acetate copolymer (EVA, emulsion polymer latex) were used to modify nanosilica by in situ surface-modification method, thereby obtaining surface-capped nanosilica possessing good compatibility and strong interfacial interactions with rubber matrix. The surface-capped nanosilica of the above both modifications were introduced into the blend of solution polymerized styrene butadiene rubber (SSBR) and butadiene rubber (BR), and its effect on the mechanical properties and wear resistance of the SSBR/BR-matrix nanocomposites was investigated. The results indicated that both HMDS and EVA contribute to enhancing the compatibility and interfacial interactions of nanosilica with the rubber matrix, which is favorable for improving the mechanical properties and wear resistance of SSBR/BR-matrix nanocomposites. Particularly, HMDS can endow the rubber-matrix nanocomposites with increased wet skid resistance, and EVA can ensure the low rolling resistance of the nanocomposites. Therefore, the SSBR/BR blend filled with HMDS–SiO₂–EVA possesses the desired mechanical properties and wear resistance and shows promising prospective as a candidate material for fabricating high-performance tire tread.

中文翻译：

---

羧化乙烯/醋酸乙烯酯共聚物改性纳米二氧化硅在轮胎胎面胶中的应用

必须保持轮胎胎面的滚动阻力，抗湿滑性和耐磨性（所谓的魔鬼三角）之间的平衡，以确保车辆的可靠性和安全性。为此，使用六甲基二硅氧烷（HMDS）和羧化聚乙烯乙酸乙烯酯共聚物（EVA，乳液聚合物胶乳）通过原位表面改性方法对纳米二氧化硅进行改性，从而获得具有良好相容性和强界面相互作用的表面封端的纳米二氧化硅。橡胶基质。将上述两种改性的表面封端的纳米二氧化硅引入溶液聚合的丁苯橡胶（SSBR）和丁二烯橡胶（BR）的共混物中，其对SSBR / BR-基体纳米复合材料的机械性能和耐磨性的影响为调查。结果表明，HMDS和EVA均有助于增强纳米二氧化硅与橡胶基体的相容性和界面相互作用，有利于提高SSBR / BR基纳米复合材料的力学性能和耐磨性。特别地，HMDS可以赋予橡胶基质纳米复合材料更高的耐湿滑性，而EVA可以确保纳米复合材料的低滚动阻力。因此，填充了HMDS-SiO的SSBR / BR共混物 EVA可以确保纳米复合材料的低滚动阻力。因此，填充了HMDS-SiO的SSBR / BR共混物 EVA可以确保纳米复合材料的低滚动阻力。因此，填充了HMDS-SiO的SSBR / BR共混物_{2 –} EVA具有所需的机械性能和耐磨性，并有望成为制造高性能轮胎胎面的候选材料。