Characterization and Properties of Sol-Gel-Derived Polyurethane Acrylate/Silica Hybrid Materials
Novel organic –inorganic nanocomposite hybrid materials have been prepared by a sol-gel process. Tetraethoxysilane (TEOS) was used as inorganic source. Polyurethane acrylate (PUA) was the organic segment. 3-(trimethoxysilyl)propyl methacrylate (KH-570) was used as both a secondary inorganic source and a silane coupling agent to improve the compatibility of the organic and inorganic phases. X-ray diffraction indicates that silica was equally dispersed in polymer matrix. Furthermore, silica and polymer formed interpenetrating polymer network. Thermal property of the hybrid materials were checked by TGA study.
Shiquan Liu and Min Zuo
Z. H. Yang et al., "Characterization and Properties of Sol-Gel-Derived Polyurethane Acrylate/Silica Hybrid Materials", Advanced Materials Research, Vols. 306-307, pp. 1229-1232, 2011