Microstructure and Properties of Triethoxysilylpropylamine-Capped Polyurethane/Titania Hybrid Films |
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Authors: | Shan Liu Jia Bing Dai Li Min Cheng |
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Affiliation: | CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei , P. R. China |
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Abstract: | Triethoxysilylpropylamine-capped waterborne polyurethane/titania hybrid films were prepared by in situ method via sol-gel process of titanium n-butoxide under acidic condition. In the paper, we studied the effect of the contents of titania sol on the microstructure, mechanical property, water resistance, and optical property of the hybrid films. It was found, with introducing the content of titania, some physical properties such as tensile strength, modulus, water resistance, refractive index, heat resistance, and ultraviolet absorbance will increase. SEM and SAXS study suggested that the hybrid films had good planarization. |
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Keywords: | Hybrid titania triethoxysilylpropylamine waterborne polyurethane |
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