出版日期：2019-06-20 00:00:00

著者：Chang, Chao‐ching

著錄名稱、卷期、頁數：Journal of Applied Polymer Science 136 (43),　48144

摘要：A series of photosensitive hydrophilic agents (T20) comprising Tween‐20, isophorone diisocyanate, and 2‐hydroxyethyl methacrylate moieties were synthesized and used in the preparation of antifog/frost resistant (AFF) hard coatings on plastic substrates. By means of a hydrophilic/hydrophobic bilayer design, the prepared coatings demonstrated not only AFF property but also water resistibility. The bottom layer is an organic–inorganic composite consisting of SiO2 nanoparticles embedded in a polymeric network of crosslinked dipentaethritol hexaacrylate. The AFF layer incorporates T20 in the formulations and links covalently with the bottom layer through a UV‐curing polymerization process. Various methods, for example, FTIR, SEM, contact angle, and steam/defrosting tests, were employed to characterize the prepared coatings. Optimally, the coatings were found to be transparent, strong (4H, pencil hardness), adhering perfectly (level 5B) to the poly(methyl methacrylate) substrate, and could be soaked in water for 24 h at 25 °C without losing hydrophilicity (contact angle ~0°) or antifogging capability.

關鍵字：antifog/frost coatings;bilayer design;organic–inorganic composite;plastic substrates;silica nanoparticles;UV‐curing

語言：en_US

ISSN：1097-4628

期刊性質：國外

收錄於：SCI EI Scopus

審稿制度：是

國別：USA

出版型式：電子版,紙本