生态摩擦学中的自修复材料。

Self-Healing Materials for Ecotribology.

作者信息

Shi Shih-Chen, Huang Teng-Feng

机构信息

Department of Mechanical Engineering, National Cheng Kung University (NCKU), No. 1 University Road, Tainan 70101, Taiwan.

出版信息

Materials (Basel). 2017 Jan 22;10(1):91. doi: 10.3390/ma10010091.

DOI:10.3390/ma10010091

PMID:28772449

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5344619/

Abstract

Hydroxypropyl methylcellulose (HPMC) is a biopolymer that is biodegradable, environmentally friendly, and bio-friendly. Owing to its unique chemical structure, HPMC can reduce the coefficient of friction (COF) and frictional wear and thus possesses excellent lubrication properties. HPMC has good dissolvability in specific solvents. The present research focuses on the reversible dissolution reaction subsequent to the film formation of HPMC, with a view to the healing and lubrication properties of thin films. Raman spectroscopy was used to test the film-forming properties of HPMC and the dissolution characteristics of various solvents. In this study, the solvents were water, methanol, ethanol, and acetone. The results showed that the HPMC film had the highest dissolvability in water. The ball-on-disk wear test was used to analyze the lubrication properties of HPMC, and the results showed that HPMC had the same COF and lubrication properties as the original film after being subjected to the water healing treatment. The HPMC film can be reused, recycled, and refilled, making it an ideal lubricant for next-generation ecotribology.

摘要

羟丙基甲基纤维素（HPMC）是一种可生物降解、环境友好且对生物无害的生物聚合物。由于其独特的化学结构，HPMC可以降低摩擦系数（COF）和摩擦磨损，因此具有出色的润滑性能。HPMC在特定溶剂中具有良好的溶解性。本研究聚焦于HPMC成膜后的可逆溶解反应，着眼于薄膜的愈合和润滑性能。采用拉曼光谱法测试HPMC的成膜性能以及各种溶剂的溶解特性。在本研究中，溶剂为水、甲醇、乙醇和丙酮。结果表明，HPMC薄膜在水中的溶解性最高。采用球盘磨损试验分析HPMC的润滑性能，结果表明，经过水愈合处理后，HPMC的摩擦系数和润滑性能与原始薄膜相同。HPMC薄膜可以重复使用、回收和再填充，使其成为下一代生态摩擦学的理想润滑剂。