Performance in Reduction of Soil Adhesion and Resistance of Al 2 O 3 /nylon1010 and Al 2 O 3 /epoxy Composite Coatings

Abstract

The performance of self-made Al₂O₃/nylon1010 (Al₂O₃/PA1010) and Al₂O₃/epoxy composite coatings (Al₂O₃/EP) in reducing soil adhesion and bulldozing resistance was tested using bulldozing resistance testing equipment. Steel 45 was used as a comparative material. The experimental results show that both Al₂O₃/PA1010 and Al₂O₃/EP exhibit the obvious function of reducing soil adhesion and bulldozing resistance. This function for Al₂O₃/PA1010 is better than that for Al₂O₃/EP. The reduction in resistance for Al₂O₃/PA1010 and Al₂O₃/EP is ≤25.76%, and ≤22.62%, respectively. The moisture content of the soil and the cutting speed of the bulldozing plate have some influence on the soil adhesion and bulldozing resistance. The ploughing resistance of mouldboards coated with Al₂O₃/PA1010 and Al₂O₃/EP, respectively, were determined in a laboratory soil bin. A maximum of 35.8% reduction in ploughing resistance was obtained for the mouldboard coated with Al₂O₃/PA1010 and a maximum of 30.31% reduction for the mouldboard coated with Al₂O₃/EP composite coatings. SE/513