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Standard Test Method for Dry Abrasion Resistance of Hydrophobic and Omniphobic Coatings 憎水和泛憎水涂层的干耐磨性的标准试验方法
发布日期: 2021-01-01
1.1 本试验方法描述了评估薄疏水性或泛疏水性涂层或两者的干摩擦阻力的程序。该涂层的厚度通常小于100 nm,并通过涂覆方法(包括但不限于物理气相沉积(PVD)、浸渍或喷涂)涂覆到平面玻璃基板上。 1.2 单位- 以国际单位制表示的数值应视为标准值。本标准不包括其他测量单位,但角度测量除外,角度测量以度为单位。 注1: 本试验方法测量静态接触角,与试验方法不同 C813 测量前进接触角。 注2: 试验方法 D4060 不适用于疏水性和泛光性涂层,因为分子单层在经受磨损后通常不会导致试样的可检测重量变化。 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====== 5.1 本试验方法用于测定薄泛光涂层或薄疏水涂层的耐磨性或机械耐久性。这些涂层通常用于通过提高抗指纹性、去水性、耐污渍性和易磨损性来提高表面的价值- 清洁属性。接触角和接触角因暴露于机械磨损而下降的比较确定了涂层在暴露于环境磨损后保持有效的能力。 5.1.1 当重量测量不会产生可检测的薄膜质量变化时,该测试方法用于评估薄膜的去除情况,因为包含这些薄膜的材料数量很少,厚度约为纳米。 5.1.2 除非相关方另有规定和约定,否则仅对完全固化的试样进行评估。 5.2 通过使用该方法评估磨损周期与水接触角,可以评估不同涂层材料的相对耐久性。 5.3 通过制备具有相同涂层的试样,然后使用该方法评估耐磨性,可以评估不同的固化或调节方法。
1.1 This test method describes a procedure for evaluating dry abrasion resistance of a thin hydrophobic or omniphobic coating, or both. The coating is typically less than 100 nm thick and is applied to a planar, glass substrate by application methods including, but not limited to, physical vapor deposition (PVD), dip, or spray. 1.2 Units— The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard with the exception of angular measurement which are reported in degrees. Note 1: This test method measures a static contact angle and is not equivalent to Test Method C813 which measures an advancing contact angle. Note 2: Test Method D4060 is not applicable to hydrophobic and omniphobic coatings because the molecular monolayer does not generally result in a detectable weight change to the specimen after subjecting it to abrasion. 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 ====== 5.1 The test method is to be used to determine the abrasion resistance or mechanical durability of thin omniphobic or thin hydrophobic coatings. These coatings are often used to enhance the surface’s value by promoting fingerprint resistance, water removal, stain resistance, and easy-clean properties. A comparison of the contact angle and the depreciation of that contact angle due to exposure to mechanical abrasion determines the coating’s ability to remain effective after exposure to environmental abrasion. 5.1.1 The test method is used to appraise the removal of thin films when gravimetric measurements will not yield a detectable change in film mass due to the small amount of material comprising these films, which are on the order of nanometers thick. 5.1.2 Only fully cured specimens are evaluated unless otherwise specified and agreed upon by the interested parties. 5.2 Different coating materials may be evaluated for relative durability by evaluating abrasion cycles versus water contact angle using this method. 5.3 Different curing or conditioning methods may be evaluated by preparing test specimens with the same coating and then evaluating abrasion resistance using this method.
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归口单位: D01.23
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