张恩,符蓉,沈长斌,高飞.铜包石墨对酚醛树脂基复合材料摩擦学性能的影响[J].表面技术,2020,49(12):170-176.
ZHANG En,FU Rong,SHEN Chang-bin,GAO Fei.Effect of Copper-coated Graphite on Tribological Properties of Phenolic Resin Composites[J].Surface Technology,2020,49(12):170-176 |
| 铜包石墨对酚醛树脂基复合材料摩擦学性能的影响 |
| Effect of Copper-coated Graphite on Tribological Properties of Phenolic Resin Composites |
| 投稿时间：2020-04-20 修订日期：2020-11-05 |
| DOI：10.16490/j.cnki.issn.1001-3660.2020.12.019 |
| 中文关键词: 铜包石墨 润滑 酚醛树脂 摩擦学性能 磨损率 摩擦系数 摩擦磨损机理 |
| 英文关键词:copper-coated graphite lubrication phenolic resin tribological properties wear rate friction coefficient mechanism |
| 基金项目:国家重点研发计划项目(2016YFB0301403) |
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| Author | Institution |
| ZHANG En | School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China |
| FU Rong | School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China |
| SHEN Chang-bin | School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China |
| GAO Fei | School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China |
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| 中文摘要: |
| 目的 提高石墨与酚醛树脂的界面结合强度，改善酚醛树脂基复合材料的摩擦学性能。方法 用高温浸渗法制备铜包石墨，并制备铜包石墨-酚醛树脂基复合材料。通过摩擦磨损实验，研究铜包石墨对酚醛树脂基复合材料摩擦学性能的影响，并对比相同成分铜/石墨混合填充酚醛树脂基复合材料的摩擦学性能。通过扫描电子显微镜、能谱仪和光学显微镜对摩擦磨损表面进行分析，研究材料摩擦磨损机理。结果 石墨表面经过金属铜处理后，金属铜由分散的聚集态转变为附着态，制备的铜包石墨颗粒整体分散度高、形状好。铜包石墨-酚醛树脂基复合材料中石墨与基体界面结合紧密，保持了酚醛树脂的连续相结构，摩擦磨损表面相对平整，复合材料平均比磨损率为3.98×10−6 mm3/(N.m)，瞬时摩擦系数波动幅度小，摩擦磨损机理以粘着磨损为主。相同成分制备的铜/石墨混合填充酚醛树脂基复合材料的界面结合度较差，摩擦磨损表面有较多裂痕，复合材料平均比磨损率为7.80×10−6 mm3/(N.m)，瞬时摩擦系数波动幅度大，摩擦磨损机理以磨粒磨损和粘着磨损为主。结论 石墨通过表面金属铜处理，不仅能提高与基体界面结合强度，还能同时有效提高酚醛树脂基复合材料的耐磨性能和摩擦稳定性。 |
| 英文摘要: |
| The work aims to enhance the interfacial bonding strength of graphite (Gr) and phenolic resin (PF) matrix, and improve the tribological properties of PF composites. Copper-coated Gr was prepared by high-temperature infiltration and Gr-PF composites were also prepared. The effect of copper-coated Gr on tribological properties of PF composites was studied and the tribological properties of copper/Gr filled PF composites with the same component were compared. The friction and wear morphologies were analyzed by SEM, EDS and optical microscopy (OM) to study the wear mechanism. After the Gr surface was treated with copper, the state of copper altered from dispersed aggregation state into attached state and the prepared copper-coated Gr particles had high dispersion and good shape. Gr was closely bonded with PF matrix in copper-coated Gr-PF composites, thus maintaining the continuous phase structure of phenolic resin. The friction and wear surface was relatively flat and the average wear rate of copper-coated Gr-PF composites was 3.98×10−6 mm3/(N.m). The instantaneous friction coefficient fluctuated slightly and the main wear mechanism was adhesive wear. The copper/Gr filled PE composites prepared with the same component had poor interfacial bonding. The friction and wear surface had more cracks, the average wear rate of copper/Gr-PF composites was 7.80×10−6 mm3/(N.m), the instantaneous friction coefficient fluctuated greatly and the main wear mechanisms were adhesive wear and abrasive wear. The treatment of Gr surface by copper can not only enhance the interfacial bonding strength of graphite (Gr) and phenolic resin (PF), but also improve the corrosion resistance and friction stability of PF composites effectively. |
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