Tribological interactions of 3D printed polyurethane and polyamide with water-responsive skin model
Tribological interactions of 3D printed polyurethane and polyamide with water-responsive skin model
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DOI：
10.1007/s40544-020-0472-2
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发表时间：
2021-02
期刊：
影响因子：
6.8
通讯作者：
A. Kasar;Ashton Chan;V. Shamanaev;P. Menezes
中科院分区：
文献类型：
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作者：
A. Kasar;Ashton Chan;V. Shamanaev;P. Menezes
3D打印在纺织时尚行业是一项新兴技术。 3D 打印在设计衣服和其他可穿戴配件中的应用需要对 3D 打印塑料在复杂的人体皮肤上的摩擦学和生物学了解，以减轻与皮肤摩擦相关的疾病，例如老茧和水泡。这项研究为寻找对皮肤摩擦力最小的最佳 3D 打印材料提供了摩擦学见解。选择了两种低摩擦 3D 打印材料：热塑性聚氨酯 (TPU) 和聚酰胺 (TPA)，并针对水响应皮肤模型进行了摩擦学测试。皮肤模型是使用以棉花制成并用戊二醛交联的明胶为基础的模型合成的。在干燥和潮湿条件下对 TPU/TPA 与皮肤模型进行摩擦学测试。与干燥条件相比，在潮湿条件下观察到更高的摩擦系数 (COF)。为了克服较高的摩擦力，通过热压制备 TPA/TPU-聚丙烯酸钠复合材料，在潮湿条件下，TPU 和 TPA 的 COF 分别显着降低约 40% 和 75%。
3D printing in the textile and fashion industry is a new emerging technology. Applications of 3D printing for designing clothes and other wearable accessories require tribological and biological understanding of 3D printing plastics against the complex human skin to mitigate skin-friction related ailments such as calluses and blisters. This study provides tribological insight in search of an optimal 3D printable material that has minimal friction against the skin. Two low friction 3D printable materials, thermoplastic polyurethane (TPU) and polyamide (TPA) were chosen and tribological testing was carried out against a water responsive skin model. The skin model was synthesized using a gelatine based model made with cotton and crosslinked with glutaraldehyde. Tribological testing of TPU/TPA against the skin model in dry and wet conditions were made. The higher coefficient of friction (COF) was observed in the wet condition compared to the dry condition. To overcome the higher friction, TPA/TPU-sodium polyacrylate composites were prepared by heat pressing that significantly reduced COF of TPU and TPA by ∼ 40% and 75%, respectively, in wet conditions.