水基纳米流体对钢环摩擦副减摩抗磨性能的研究

采用聚乙二醇和羧甲基纤维素钠作为分散剂,将分散剂和纳米碳化硼颗粒以一定的质量分数加入水基础液中,通过两步法制备出稳定分散的水基纳米碳化硼流体。采用单一变量法,研究了水基纳米碳化硼流体对钢环摩擦性能的影响,提出了水基纳米碳化硼流体作为传动介质的抗磨减摩机理。实验结果表明,羧甲基纤维素钠作为分散剂且质量分数为0.3%、纳米颗粒粒径为80nm且质量分数为0.8%、分散介质为去离子水时水基纳米碳化硼流体具有良好的抗磨减摩性能。当摩擦负载超过200N~250N范围之后,水基纳米碳化硼流体的抗磨减摩性能大大降低。

Study on Tribological Properties of Water Based Nanofluid in Steel Ring Friction

Polyethylene glycol and sodium carboxymethyl cellulose as a dispersing agent, the dispersing agent and the nano boron carbide particles adding water based fluid in a certain mass fraction. Preparation of a stable dispersion of water based nano B4C fluid through a two-step process. Using single variable method, study the water based nano fluid effects of steel ring friction properties, proposed the wear-resistance and anti-friction of water based nano B4C fluid as transmission media. Experimental results show that: Water based nano B4C have excellent wear-resistance and anti-friction performance when sodium carboxymethyl cellulose as a dispersing agent, and the mass fraction of 0.3%, mass fraction of the nanoparticles was 0.8%, nanoparticles size is 80nm, the dispersion medium is deionized water. When the friction load exceed 200N~250N range, wear-resistance and anti-friction properties of water based nano boron carbide fluid is greatly reduced.