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摘要
以顺丁橡胶(BR)、丁腈橡胶(NBR)、天然橡胶(NR)和丁苯橡胶(SBR)为研究对象,在探究橡胶种类对防滑性能影响的基础上,向NBR中加入改性粗粒碳化硅(SiC),制备了NBR/SiC复合材料,研究SiC添加量对复合材料性能的影响。结果表明,干摩擦下橡胶与摩擦副的粘附性越大,摩擦系数越大,润滑状态和冰面上的摩擦系数明显减小;改性粗粒SiC的加入对材料的力学性能、硫化特性及防滑性能均有影响,干摩擦系数随着SiC的增加而减小;润滑状态和冰面上的静摩擦系数提高了106%和114%,动摩擦系数提高了60%和141%,可满足鞋底防滑要求。
Abstract
Butadiene rubber (BR),nitrile butadiene rubber (NBR),natural rubber (NR) and styrene-butadiene rubber (SBR) were selected as the research objects to study the influence of rubber types on the slip resistance.Then,modified coarse-grained silicon carbide (SiC) was added into NBR to prepare NBR/SiC composites,and the effect of SiC addition on the properties of composites was also investigated.The results showed that the greater the adhesion between the rubber and the friction pair under dry friction,the higher the friction coefficient,and the friction coefficients on the lubricated surface and ice surface were significantly reduced.The mechanical properties,vulcanization characteristics and slip resistance were affected by the addition of modified coarse-grained SiC.The friction coefficient on dry surface decreased with the increase of SiC,and the static friction coefficients on the lubricated surface and the ice surface increased by 106% and 114%,while the dynamic friction coefficients increased by 60% and 141%,respectively,which could meet the anti-slip requirements of shoe soles.
关键词
橡胶复合材料
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碳化硅
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止滑
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摩擦系数
Key words
rubber composite
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silicon carbide
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slip resistance
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friction coefficient
橡胶种类及SiC填料对橡胶防滑性能的影响[J].
化工新型材料, 2023, 51(5): 261-265 DOI:10.19817/j.cnki.issn1006-3536.2023.05.048
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基金资助
国家自然科学基金(21571084)
