# PREPARATION AND CHARACTERIZATION OF SILICA/POLYMER ANTIFOGGING COATINGS

> Title: PREPARATION AND CHARACTERIZATION OF SILICA/POLYMER ANTIFOGGING COATINGS Page Range: p.39-44 Author(s): Chao-Chin Chang; Kuan-Chung Wang; Ching-Chung Chen; Liao-Ping Cheng File size: Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Polymers and Polymer Composites Issue Year: ppc Volume: 22 Issue...

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Published: 2014-01-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: PREPARATION AND CHARACTERIZATION OF SILICA/POLYMER ANTIFOGGING COATINGS**
 Page Range: p.39-44
 Author(s): Chao-Chin Chang; Kuan-Chung Wang; Ching-Chung Chen; Liao-Ping Cheng
 File size:
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc22-1&JournalID=102080&JIP=) (subscribers only)
 ![](http://handbuy.gif) Buy the pdf (non-subscribers)
 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 22
 Issue No: No.1

**Abstract**
 This research work concerns the preparation of a bi-layer antifogging (AF) coating on a polycarbonate plastic substrate. The bottom layer, serving as a mechanical support, is an organic-inorganic composite that is formed by embedding colloidal silica in a crosslinked network of b-glycidoxypropyltrimethoxysiline. Atop this layer, a coating formulation incorporating glycidyl methacrylate and poly(ethylene oxide)-based hydrophilic species was applied and then UV-cured to yield a film exhibiting the AF effect. Solid-state 29Si-NMR and FTIR were employed to investigate the evolution of chemical bonds during the sol-gel and the UV-curing processes. Contact angles of water on the coatings were measured to examine the hydrophilicity of the coatings. Furthermore, industrial tests such as pencil hardness, tape adhesion, and steam tests were carried out to evaluate the performance of the coatings. 21 Refs.

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