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胎侧可以保护轮胎胎体不受风化、臭氧侵袭、磨耗、割口和龟裂的影响,胎侧的轮廓必须具备能耐受长年累月的严重变形的作用以适应那些诸如提高牵引力、降低滚动阻力、提高行驶里程和高速操纵性能的需求。当屈挠集中在轮胎的一个较小区域时,这些需求就对胎侧胶有着更为苛刻的要求。本文对在NR/高顺式聚丁二烯橡胶的并用胶配方(并用比为50/50)中采用7种等级的炭黑(N550、N650、N660、N683、N326、实验炭黑Ⅰ和实验炭黑Ⅱ)的硫化特性、物理性能、动态力学性能、分散率、龟裂增长和初始龟裂进行了研究。研究结果表明,通过20phrEBⅠ与30phrN660并用来协调耐切割性、抗龟裂增长性、耐磨性和低滚动阻力等的胎侧性能,以延长制品寿命和降低滞后损失,就可获得更佳的综合性能。
The sidewall protects the tire carcass from weathering, ozone attack, abrasion, cuts and cracks. The sidewall profile must have the ability to withstand severe deformation over many years to accommodate factors such as increased traction, reduced rolling resistance, Improve the mileage and high-speed handling performance needs. These demands place more stringent requirements on sidewall glues when flexing is concentrated in a smaller area of the tire. In this paper, seven grades of carbon black (N550, N650, N660, N683, N326, experimental carbon black I and experiments) were used in a combination of NR / high cis polybutadiene rubber with a blending ratio of 50/50 Carbon black Ⅱ) vulcanization properties, physical properties, dynamic mechanical properties, dispersion, crack growth and initial cracking were studied. The results show that 20phrEBI with 30phrN660 and used to coordinate the resistance to cutting, crack growth, wear resistance and low rolling resistance of the sidewall performance, in order to extend the life of the product and reduce the hysteresis loss, you can get a better synthesis performance.