Thermal and mechanical properties of paper-based friction materials with nano-Al2O3 modified phenolic resin
XIE Maoqing1,2, WANG Leigang1, LUO Yiqin3, ZHAO Zaojun2
1. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China; 2. Zhejiang Tieliu Clutch Co., Ltd., Hangzhou 311101, China; 3. Zhejiang Fashion Institute of Technology, Ningbo 315211, China
Abstract:The paper-based friction materials using nano-Al2O3 modified phenolic resin as binder were prepared by paper-making process. The effects of resin contents (mass fraction) and curing temperatures on the heat resistance, shear strength, compressure resilience were studied. The results show that with the increase of resin contents, the heat resistance of the paper-based friction materials decreases slightly, the shear strength increases. In the first to fourth compression-rebound tests, the rebound rate increases greatly at the first compression-rebound cycle, while the rebound rate is close to each other from the second to fourth compression-rebound cycle and is less affected by the resin content. The compression rate decreases with the increase of resin content, and the compression rate at the first compression-rebound cycle is obviously higher than that of the following three times. At higher curing temperature, the materials have the higher heat resistance and shearing strength, meanwhile, the compression rate decreases obviously and rebound rate increases obviously with the increase of curing temperature at the first compression-rebound cycle. However, from the second to fourth compression-rebound cycle, the compression rate and rebound rate are close to each other, and are less affected by the curing temperature. The paper-based friction material possess the better heat resistance, higher shear strength, higher compression rate and high rebound rate when the modified phenolic resin is 40% and the curing temperature is 160 ℃.
[1] FEI J, LUO W, LI H, et al.Effects of NBR particle size on performance of carbon fiber reinforced paper-based friction material[J]. Tribology Transactions, 2015, 58(6): 1012-1020. [2] FUJII T, TOHGO K, WANG Y, et al.Fatigue strength of a paper-based friction material under shear-compressive loading[J]. Strength, Fracture and Complexity, 2011, 7(2): 185-193. [3] 张素风, 董加亮, 李新平. 纸基高性能摩阻材料生产工艺的研究[J]. 陕西科技大学学报, 2006, 24(3): 11-16. ZHANG Sufeng, DONG Jialiang, LI Xinping.Forming study of high-quality paper-based friction material[J]. Journal of Shanxi University of Science & Technology, 2006, 24(3): 11-16. [4] OMPUSUNGGU A P, SAS P, BRUSSEL H V.Influence of adhesive wear and thermal degradation on the frictional characteristics of paper-based friction materials: A comparative study[J]. ISRN Tribology, 2013, 739202: 1-11. [5] 陆赵情, 王贝贝, 陈杰. 树脂浸渍对纸基摩擦材料摩擦磨损性能的影响[J]. 纸和造纸, 2015, 34(7): 33-36. LU Zhaoqing, WANG Beibei, CHEN Jie.Effect of resin impregnated on the friction and wear properties of the paper- based friction materials[J]. Paper and Paper Making, 2015, 34(7): 33-36. [6] 王欢欢, 付业伟, 张翔, 等. 黏结剂对纸基摩擦材料摩擦磨损性能的影响[J]. 润滑与密封, 2014, 39(3): 52-56. WANG Huanhuan, FU Yewei, ZHANG Xiang, et al.Effects of resin binder on the properties of paper-based friction material[J]. Lubrication Engineering, 2014, 39(3): 52-56. [7] LI Y, ZHOU H, CHEN J.Effects of atomic oxygen irradiation on the friction and wear behavior of MoS2-doped phenolic epoxy resin-based bonded solid lubricating coatings[J]. Journal of Astronautic, 2009, 30(6): 2392-2397. [8] BIJWE J, NIDHI, MAJUMDAR N, et al.Influence of modified phenolic resins on the fade and recovery behavior of friction materials[J]. Wear, 2005, 259(7): 1068-1078. [9] ZHANG X, LI K Z, LI H J, et al.Tribological and mechanical properties of glass fiber reinforced paper-based composite friction material[J] Tribology International, 2014, 69: 156-67. [10] LI M, KHONSARI M M, MCCARTHY D M C, et al. On the wear prediction of the paper-based friction material in a wet clutch[J]. Wear, 2015, 334/335: 56-66. [11] LI C, FU Y, WANG B, et al. Effect of pore structure on mechanical and tribological properties of paper-based friction materials[J]. Tribology International, 2020, 148, 106307: 1-9. [12] 张日盈, 梁云, 张春辉. 气孔率对湿式纸基摩擦材料性能的影响[J]. 中国造纸, 2019, 38(4): 1-7. ZHANG Riying, LIANG Yun, ZHANG Chunhui.Effect of porosity on the performance of paper-based wet friction material[J]. China Pulp & Paper, 2019, 38(4): 1-7. [13] MARKLUND P, MÄKI R, JANG J, et al. Thermal in?uence on torque transfer of wet clutches in limited slip differential applications[J]. Tribology International, 2007, 40(5): 876-884. [14] 佟毅. 改性硼酚醛树脂/玄武岩纤维复合材料的制备及工艺研究[D]. 沈阳: 沈阳工业大学, 2020: 25-26. TONG Yi.Preparation and technology of modified boron phenolic resin/basalt fiber composite materials[D]. Shenyang: Shenyang University of Technology, 2020: 25-26. [15] EGUCHI M, YAMAMOTO T.Shear Characteristics of a boundary film for a paper-based wet friction material: Friction and real contact area measurement[J]. Tribology International, 2005, 38(3): 327-335. [16] MILAYZAKI T, MATSUMOTO T, YAMAMOTO T.Effect of visco-elastic property on friction characteristics of paper-based friction materials for oil immersed clutches[J]. Journal of Tribology, 1998, 120(2): 393-398. [17] 吴爽. F级无卤阻燃环氧玻璃布层压板的研制与性能研究[D]. 上海: 东华大学, 2012: 57-58. WU Shuang.Preparation and property study of glass cloth reinforced F class laminates based halogen-free retardant epoxy resin[D]. Shanghai: Donghua University, 2012: 57-58.