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现行 ASTM D2197-16(2022)
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Standard Test Method for Adhesion of Organic Coatings by Scrape Adhesion 用刮擦法测定有机涂层附着力的标准试验方法
发布日期: 2022-07-01
1.1 本试验方法包括测定有机涂层(如油漆、清漆和油漆)在光滑、平坦(平面)面板表面上的附着力。 1.2 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 本标准并非旨在解决与其使用相关的所有安全问题(如有)。本标准的用户有责任在使用前制定适当的安全、健康和环境实践,并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒(TBT)委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 要达到令人满意的性能,涂层必须粘附在其所涂覆的基材上。该试验方法有助于区分涂层与基材的粘附程度。它在为一系列附着力存在显著差异的涂层面板提供相对评级时最为有用。 4.2 在实验室中使用前一版中规定的环形触针进行的研究表明,当需要10到20 kg的负载来破坏溶剂型涂层的表面时,不可能获得有意义的粘附数据。当需要如此大的负载时,镀铬环形触针在涂层表面抖动和跳跃。 当测试需要10公斤以上才能破坏表面的粉末涂层时,获得了类似的无意义数据。因此,这些条件下的测试不适用。
1.1 This test method covers the determination of the adhesion of organic coatings such as paint, varnish, and lacquer when applied to smooth, flat (planar) panel surfaces. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 Coatings to perform satisfactorily must adhere to the substrates on which they are applied. This test method has been found useful in differentiating the degree of adhesion of coatings to substrates. It is most useful in providing relative ratings for a series of coated panels exhibiting significant differences in adhesion. 4.2 Studies performed in a laboratory using the loop stylus specified in the previous edition showed meaningful adhesion data were impossible when loads of 10 to 20 kg were required to break the surface of a solvent based coating. The chrome plated loop stylus chattered and skipped across the coating surface when loads of this magnitude were required. Similar meaningless data were obtained when powder coatings were tested that required more than 10 kg to break the surface. Therefore, testing under these conditions is not applicable.
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归口单位: D01.23
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