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不同制动速度对碳纤维增强酚醛树脂基摩擦材料摩擦性能的影响 预览

EFFECT OF DIFFERENT BRAKING SPEEDS ON FRICTION PROPERTIES OF CARBON FIBERREINFORCED PHENOLIC RESIN BASED FRICTION MATERIALS
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摘要 为了研究不同制动速度对碳纤维增强树脂基摩擦材料摩擦磨损性能的影响,通过制备短切纤维(DQ)、平纹布铺层(TB)和2.5D深交联机织物(SJ)三种碳纤维预制体结构增强酚醛树脂基摩擦材料,测试了三种摩擦材料在不同制动速度下的摩擦系数、磨损率及制动时间,并结合微观表面形貌和磨屑形貌讨论了摩擦材料的摩擦磨损机理。结果表明:在相同的制动速度下,材料的摩擦系数基本表现为SJ>TB>DQ,深交联织物增强摩擦材料磨损量最低、制动时间最短。平纹布铺层和2.5D织物增强摩擦材料的摩擦系数受制动速度的变化影响较小,并稳定在0.35~0.45。随着制动速度的增加,短切纤维增强摩擦材料表面难以形成连续的摩擦膜,主要发生磨粒磨损;平纹布铺层和2.5D织物增强摩擦材料摩擦表面存在较完整的摩擦膜,磨损形式以粘着磨损为主。 In order to study the effects of different braking speeds on the friction and wear properties of carbon fiber reinforced resin-based friction materials, phenolic resin-based friction materials reinforced with three kinds of carbon fiber preforms were prepared, and three kinds of carbon fiber preforms were chopped fiber (DQ), plain cloth (TB) and 2.5D deep cross-linking fabric (SJ). The friction coefficient, wear rate and braking time of the three friction materials at different braking speeds were tested. The friction and wear mechanisms of the friction materials were discussed in combination with microscopic surface morphology and wear debris morphology. The results show that the friction coefficient of the material is basically SJ>TB>DQ, and the deep crosslinked fabric reinforced friction material has the lowest wear and the shortest braking time at the same braking speed. The friction coefficient of plain weave and 2.5D fabric reinforced friction material were less affected by the change of braking speed and were stable at 0.35~0.45. With the increase of braking speed, the chopped fiber reinforced friction material mainly wears abrasive grains, and the friction surface is difficult to form a continuous friction film. There is a relatively complete friction film on the friction surface of plain weave and 2.5D fabric reinforced friction material, and the main wear form is adhesive wear.
作者 樊凯 卢雪峰 吕凯明 钱坤 FAN kai;LU Xue-feng;LV Kai-ming;QIAN Kun(Key Laboratory of Eco-Textile of Ministry of Education,Jiangnan University,Wuxi 214122,China)
出处 《玻璃钢/复合材料》 CAS 北大核心 2019年第5期44-50,共7页 Fiber Reinforced Plastics/Composites
基金 “十三五”国家重点研发计划项目(2016YFC-0304301) “十三五”国家重点研发计划项目(2016YFB0303200) 中央高校基本科研业务费专项资金资助(JUSRP51718A,JUSRP41702) 江苏省研究生科研创新计划项目(1062050205185330) 江苏高校优势学科建设工程资助项目(PAPD) 连云港市产业前瞻与共性关键技术科技项目(CG1520).
关键词 碳纤维增强酚醛树脂基摩擦材料 预制体结构 制动速度 摩擦磨损性能 carbon fiber reinforced phenolic resin based friction materials preform structure braking speed friction and wear properties
作者简介 樊凯(1993-),男,硕士研究生,主要从事纺织复合材料方面的研究;通讯作者:卢雪峰(1984-),女,博士,副教授,主要从事纺织复合材料方面的研究,sandylxf@ tom.com。
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