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Preparation of an ultraviolet‐curable water‐borne poly(urethane acrylate)/silica dispersion and properties of its hybrid film
Author(s) -
Yu Hao,
Yuan Qiaolong,
Wang Dening,
Zhao Yinghong
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.20694
Subject(s) - materials science , acrylate , fumed silica , scanning electron microscope , ultimate tensile strength , hybrid material , composite material , ultraviolet , uv curing , glass transition , curing (chemistry) , dispersion (optics) , chemical engineering , copolymer , nanotechnology , polymer , optics , physics , optoelectronics , engineering
An organic–inorganic hybrid material was prepared through the addition of nanometer fumed silica partly modified by dimethyl dichlorosilane into a water‐borne poly(urethane acrylate) (PUA) anionomer. A PUA/silica hybrid film was made via ultraviolet curing. The mechanical properties of the hybrid film were studied. The tensile strength, elongation at break, pendulum hardness and the glass‐transition temperature of the hybrid material increased with increasing content of silica. Scanning electron microscopy showed an asymmetrical distribution of modified silica in PUA. Atomic force microscopy demonstrated that silica particles could make the surface of the film smooth. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 1347–1352, 2004