A Study on Natural Leather Coated with Diamond-Like Carbon Layer by Using Arc Ion Plating

• Main Authors: Zong-Yu Chen, 陳宗禹
• Other Authors: 鄭國彬
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/50224787261552690782

碩士 === 逢甲大學 === 纖維與複合材料學系 === 102 === An Arc ion plating (AIP) system was used to synthesize diamond like carbon (DLC) coatings onto natural leather in this work. The effects of deposition parameters, which includes glow discharge, acetylene pressure, substrate bias and film thickness, on the properties of DLC-coated naturel leather were comprehensively investigated. In the first part, the influences of acetylene glow discharge ion bombardment duration on coated leather were evaluated. In the second part, the effects of acetylene flow and pressure during the deposition on coating structures and leather substrates were revealed. In the third part, the effects of film thickness and substrate bias during the deposition on the properties of coated leather were discussed. These deposition parameters influence the structure of the obtained carbon coating and their wear resistance, water repellency, moisture permeability, flexibility, strength, tensile strength simultaneously. The results show that, DLC coatings on natural leather exhibits relatively stronger adhesion with a longer glow discharge ion bombardment treatment, which results higher wear resistances. The wear resistance of the coating increases with the acetylene pressure during the deposition and achieves a best value at the acetylene pressure of 17 mTorr. Both enhancing the substrate bias and increasing the coating thickness results a higher wear resistance. However, the relatively larger heat accumulated during long deposition time and intensified substrate bias may damage the leather substrate material. The DLC coatings with optimized wear resistance were achieved at the deposition condition of 3 minutes acetylene plasma ion bombardment, pressure of 17 mTorr, deposition time of 7 minutes, substrate bias of -200 V. These results illustrates the potential of utilizing such surface modification technique on leather products, i.e., shoes, leather, luggage, bags, and upholsteries in the future.