Method for evaluating wetting resistance of material surface

• Main Authors: ZHOU ZHIHONG, XIONG HUAJIE, TIAN XIAOBAO, WU ZHULONG, CUI SHAOHAN, WANG NA
• Format: Patent
• Language: Chinese; English
• Published: 23.09.2022
• Subjects: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS; PHYSICS

The invention is applicable to the technical field of material surface wettability testing, and provides a method for evaluating the wettability resistance of a material surface, which comprises the following steps: acquiring macroscopic parameters of the material surface; the size of the material and the size of the protruding structure on the surface of the material are reduced in equal proportion, and scaled material parameters are obtained; modeling is conducted according to the scaled material parameters, wherein a material surface model and an impinging droplet model are included; and carrying out molecular dynamics simulation by adopting the constructed material surface model and the impinging droplet model to obtain a simulation critical speed V1, and calculating the critical speed V of the material surface according to the following formula. According to the micromechanical balance of the liquid drops when the liquid drops completely permeate the structure gaps, the micro-scale is transited to the ma