Investigation of the peel test for measuring self-cleanable characteristic of fluorine-modified coatings

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• 作者：Je-Ik Moon^a ; Yong-Hee Lee^a ; Hyun-Joong Kim^a ; ^b ; ^c ; ^d ; ^{hjokim@snu.ac.kr} ; Steven Schwartz^c ; Miriam Rafailovich^d ; Jonathan Sokolov^d
• 关键词：Self-cleanable characteristic ; Peel test ; Fluorine-modified coating ; Pressure-sensitive adhesive ; X-ray photoelectron spectroscopy
• 刊名：Polymer Testing
• 出版年：2012
• 期刊代码：143_01429418
• 类别：et
• 出版时间：May, 2012
• 卷：31
• 期：3
• 页码：433-438
• 文件大小：437 K

摘要

The self-cleanable ability of coatings is important to prevent or remove polluting fingerprints, dust, water and oils for a number of applications. Fluorocarbon polymers have been used to provide self-cleanable ability due to their low surface energy. The efficiency of fluorine-modified coatings has been evaluated by measuring surface free energy using a contact angle measurement. However, this method is not sufficient to define the polluting-preventive ability or removability of fluorine-modified coatings due to the amount of fluorine content.

A peel test can be used to determine the self-cleanable characteristics of fluorine-modified coatings by evaluating adhesion between the coating surface and pressure sensitive adhesives (PSAs). In addition, adhesion can be used to predict the amount of polluting-preventive ability or removability of coatings by comparing the peel strength of commercial PSAs. We designed fluorine-modified acrylic resins with different fluorine contents for a new testing method. Comparing the contact angle measurement with the peel test results, the peel test for the self-cleanable characteristic of coatings was more suitable than the contact angle measurement to predict the polluting-preventive ability and removability of coatings.