Byba Ievgen, Minitskyi Anatolii, Sydorenko Yuriy, Shysholin Andrii, Myronyuk Oleksiy, Barabash Maksym
E.O. Paton Education and Research Institute of Materials Science and Welding, National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute', 37, Beresteiskyi Ave., UA-03056 Kyiv, Ukraine.
Institute of Applied Control Systems of the N.A.S of Ukraine, 40, Glushkov Akademika Avenue, UA-03187 Kyiv, Ukraine.
Materials (Basel). 2025 Aug 16;18(16):3847. doi: 10.3390/ma18163847.
A friction composite material which contains cellulose fiber, carbon fiber, wollastonite, graphite, and resin for use in oil-cooled friction units, hydromechanical boxes, and couplings was developed. The fabrication technique includes the formation of a paper layer based on the mixture of stated fibers via a wet-laid process, impregnation of the layer with phenolic resin, and hot pressing onto a steel carrier. The infrared spectra of the polymeric base (phenolic resin) were studied by solvent extraction. The structural-phase analysis of the obtained material was carried out by the SEM method, and the particle size distribution parameters of the composite components were estimated based on the images of the sample surface. The surface roughness parameters of the samples are as follows: a = 5.7 μm z = 31.4 μm. The tribotechnical characteristics of the material were tested in an oil medium at a load of 5.0 MPa and a rotation mode of 2000 rpm for 180 min in a pair with a steel 45 counterbody. The coefficient of friction of the developed material was 0.11-0.12; the degree of wear was 6.17 × 10 μm/mm. The degree of compression deformation of the composite is 0.36%, and the compressive strength is 7.8 MPa. The calculated kinetic energy absorbed and power level are 205 J/cm and 110 W/cm, respectively. The main tribotechnical characteristics of the developed friction material correspond to industrial analogues.
开发了一种用于油冷摩擦单元、液力机械箱和联轴器的摩擦复合材料，其包含纤维素纤维、碳纤维、硅灰石、石墨和树脂。制造工艺包括通过湿法成型工艺基于上述纤维的混合物形成纸层，用酚醛树脂浸渍该层，并热压到钢载体上。通过溶剂萃取研究了聚合物基体（酚醛树脂）的红外光谱。通过扫描电子显微镜（SEM）方法对所得材料进行了结构相分析，并根据样品表面图像估算了复合组分的粒度分布参数。样品的表面粗糙度参数如下：a = 5.7μm，z = 31.4μm。在油介质中，以5.0MPa的载荷和2000rpm的旋转模式与45钢配对体进行180分钟测试，以测试该材料的摩擦学特性。所开发材料的摩擦系数为0.11 - 0.12；磨损程度为6.17×10μm/mm。复合材料的压缩变形程度为0.36%，抗压强度为7.8MPa。计算得出吸收的动能和功率水平分别为205J/cm和110W/cm。所开发的摩擦材料的主要摩擦学特性与工业类似物相当。
