Yang Huadong, Ji Fengchao, Li Zhen, Tao Shuai
Department of Mechanical Engineering, North China Electric Power University, Baoding 071003, China.
Polymers (Basel). 2020 Jul 12;12(7):1539. doi: 10.3390/polym12071539.
In the fields of agriculture, medical treatment, food, and packaging, polymers are required to have the characteristics of self-cleaning, anti-icing, and anti-corrosion. The traditional preparation method of hydrophobic coatings is costly and the process is complex, which has special requirements on the surface of the part. In this study, fused deposition modeling (FDM) 3D printing technology with design and processing flexibility was applied to the preparation of hydrophobic coatings on polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS) parts, and the relationship between the printing process parameters and the surface roughness and wettability of the printed test parts was discussed. The experimental results show that the layer thickness and filling method have a significant effect on the surface roughness of the 3D-printed parts, while the printing speed has no effect on the surface roughness. The orthogonal experiment analysis method was used to perform the wettability experiment analysis, and the optimal preparation process parameters were found to be a layer thickness of 0.25 mm, the Grid filling method, and a printing speed of 150 mm/s.
在农业、医疗、食品和包装领域，要求聚合物具有自清洁、防结冰和防腐的特性。传统的疏水涂层制备方法成本高且工艺复杂，对部件表面有特殊要求。在本研究中，将具有设计和加工灵活性的熔融沉积建模（FDM）3D打印技术应用于在聚乳酸（PLA）和丙烯腈-丁二烯-苯乙烯（ABS）部件上制备疏水涂层，并讨论了打印工艺参数与打印测试部件的表面粗糙度和润湿性之间的关系。实验结果表明，层厚和填充方式对3D打印部件的表面粗糙度有显著影响，而打印速度对表面粗糙度没有影响。采用正交试验分析法进行润湿性实验分析，发现最佳制备工艺参数为层厚0.25mm、网格填充方式和打印速度150mm/s。
