Standard Test Method for Dry Abrasion Resistance of Hydrophobic and Omniphobic Coatings

Importancia y uso:

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.

Subcomité:

D01.23

Volúmen:

06.01

Número ICS:

25.220.01 (Surface treatment and coating in general)

Palabras clave:

abrasion resistance; fingerprint mitigation; fingerprint resistance; hydrophobic; monolayer film/coating; omniphobic; steel wool; surface treatment; water contact angle;