| 姚萌萌,张春辉,向宏佳,陆安安,耿合斌,贺佳耀,林洺岑.纸基摩擦复合材料微/纳米碳颗粒涂层的构建及其性能研究[J].中国造纸,2026,45(5):58-70 |
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| 纸基摩擦复合材料微/纳米碳颗粒涂层的构建及其性能研究 |
| Fabrication and Performance Study of Micro/Nano Carbon Particle Coatings on Paper-based Friction Composites |
| 收稿日期：2025-11-22 修订日期：2026-01-16 |
| DOI：10.11980/j.issn.0254-508X.2026.05.007 |
| 关键词: 纸基摩擦复合材料 分散性 碳颗粒 摩擦磨损性能 |
| Key Words:paper-based friction composites dispersibility carbon particles friction and wear properties |
| 基金项目:校协合作基金（D8216860、D8244720）。 |
| 作者 | 单位 | 邮编 | | 姚萌萌* | 华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 | | 张春辉 | 华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 | | 向宏佳 | 华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 | | 陆安安 | 华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 | | 耿合斌 | 华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 | | 贺佳耀 | 华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 | | 林洺岑* | 华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 |
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| 摘要:微/纳米碳颗粒易发生团聚，难以在纸基摩擦材料表面构建均匀耐磨涂层。为此，本研究通过空气喷涂技术在摩擦原纸表面分别喷涂石墨烯（GNP）、纳米碳纤维（VGCF）与碳纤维粉末（CF），再经浸渍树脂、热压及固化等工艺制备了纸基摩擦复合材料，并对其微观形貌、剪切强度、热扩散及摩擦性能等进行了探究。结果表明，当碳颗粒用量为2%时，GNP、VGCF、CF分散液的分散性、稳定性与流动性均最优。相对于未添加碳颗粒的摩擦原纸，喷涂GNP后纸基摩擦复合材料的平面与法向热扩散系数分别提升了16.3%和8.2%，磨损率降低了50%；喷涂VGCF后其剪切强度提升129.1%，但吸油时间显著增加；喷涂CF后其在制动压力3.01 MPa下的动摩擦系数提升了6.3%，变异系数降低了33.6%~52.0%，且平均动摩擦系数与静摩擦系数的比值最接近1，实现了复合材料传动效率与稳定性的同步提升。 |
| Abstract:Micro/nano-sized carbon particles are prone to agglomeration， making it difficult to construct uniform and wear-resistant coatings on paper-based friction materials. To address this issue， graphene nanoplatelets (GNP)， vapor-grown carbon fibers (VGCF)， and carbon fiber powders (CF) were separately sprayed onto friction base paper using an air-spraying technique. Subsequently， paper-based friction composites were fabricated through resin impregnation， hot pressing， and curing processes. Their microstructure， shear strength， thermal diffusivity， and frictional performance were systematically investigated. The results indicated that when the carbon particle content was 2%， the dispersibility， stability， and fluidity of the GNP， VGCF， and CF dispersions were all optimal. Compared with the pristine friction base paper without carbon particles， the paper-based composites coated with GNP exhibited increases of 16.3% and 8.2% in in-plane and normal thermal diffusivity， respectively， along with a 50% reduction in wear rate. For VGCF-coated composites， the shear strength increased by 129.1%， while the oil absorption time increased significantly. For CF-coated composites， the dynamic friction coefficient under a braking pressure of 3.01 MPa increased by 6.3%， and the coefficient of variation decreased by 33.6%~52.0%. In addition， the ratio of average dynamic to static friction coefficients approached to 1， indicating simultaneous improvements in transmission efficiency and operational stability. |
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