Substrate having a self cleaning anti-reflecting coating and method for its preparation

摘要

Provided is a substrate having a surface that is at least partially laminated with a coating that provides the surface both anti-reflective and self-cleaning properties. The coating is characterized by low refraction, a contact angle of at least 150° and a sliding angle of at most 10°, and includes two components: (i) an anti-reflecting coating (ARC) component and (ii) a self-cleaning coating (SCC) component. Also provided is a method for providing a substrate having a surface that is at least partially laminated with an anti-reflecting (AR) self-cleaning (SC) coating, the method including providing a substrate with at least one surface and applying a coating onto at least a part of the at least one surface, the coating including an ARC component and a SCC component.

主权项

1. A substrate, comprising:
a surface being at least partially laminated with a multi-layer coating,
the multi-layer coating comprising a first layer proximal to the surface and at least one additional layer,the first layer being disposed between the surface and the at least one additional layer, the first layer comprising an anti-reflecting coating (ARC) component that comprises silica,the at least one additional layer comprising a self-cleaning coating (SCC) component, the SCC component comprising a mixture of nano-structuring agent and micro-structuring agent, the nano-structuring agent comprising fluorosilane and the micro-structuring agent comprising colloidal silica, the coating having low refraction, a contact angle of at least 150°, and a sliding angle of at most 10°.