Effect of the matrix resin structure on the mechanical properties and braking performance of organic brake pads |
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| Authors: | Hai‐Qing Wang Xing‐Yang Wu Tong‐Sheng Li Xu‐Jun Liu Pei‐Hong Cong |
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| Affiliation: | 1. Key Laboratory for Liquid–Solid Structural Evolution & Processing of Materials of Ministry of Education, Shandong University, Jinan 250001, China;2. College of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, China;3. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China |
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| Abstract: | Two chemically modified phenolic resins (PFs) designed and developed for the matrix resins of organic friction materials were characterized. The braking performance of organic brake pads based on the two modified resins and reinforced with hybrid fibers was investigated on a full‐scale test bench. The results indicate that the modified PF with more internal friction units possessed much higher impact and compression strengths, greater toughness, and better braking stability. We concluded that the matrix resin with more adjustable structural units allowed for an adjustable Young's modulus and dynamic mechanical properties and, hence, could indirectly allow an adjustable friction coefficient for organic brake pads during braking process and, furthermore, enable the optimization of braking stability of the friction couples. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2012 |
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| Keywords: | modification structure– property relations viscoelastic properties |
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