POLYMERS AND POLYMER MATRIX COMPOSITES |
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Properties of Water-borne Alkyd Resin/Hollow TiO2 Microsphere Composite Coating |
BAO Yan1,2, DING Ying1,2, TANG Pei1,2, KANG Qiaoling1
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1 College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China 2 National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China |
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Abstract Water-borne alkyd resin was prepared using soybean oleic acid, trimethyl-propane, phthalic anhydride and trimellitic anhydride as raw mate-rials. Hollow TiO2 microspheres with different particle sizes were introduced into water-borne alkyd resin by physical blending method to obtain water-borne alkyd resin/hollow TiO2 microspheres composite coating. The effects of particle size of hollow TiO2 microspheres on water contact angle, salt water resistance, electrochemical properties, adhesion and pencil hardness of water-borne alkyd resin coating were investigated. The results showed that the particle size of hollow TiO2 microspheres was played a vital role for the properties of water-borne alkyd resin coa-ting. When the particle size of hollow TiO2 microspheres was 200 nm, the water contact angle of the composite coating reached 106°, and its salt water resistance reached more than 120 h. Compared with the coating of water-borne alkyd resin, the electrochemical impedance of the composite coating was improved two orders, which exhibited prominent anti-corrosion performance. Moreover, the adhesion and pencil hardness of the composite coating was grade 0 and 5H, respectively.
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Published: 30 September 2021
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Fund:This work was financially supported by the National Natural Science Foundation of China (21878181), the Key Research and Development Program of Shaanxi Province (2018ZDXM-GY-118). |
About author:: Yan Bao, Shaanxi University of Science and Technology, a professor in the College of Bioresources Chemical & Materials Engineering, the list for new century excellent talents to support the Ministry of Education program, won the national May 1 women's certificates, the national worker pioneer, “high-level personnel special support program” youth talent of young and middle-aged leading science and technology innovation talents, Shaanxi Province, Shaanxi provincial youth science and technology nova, youth science May 4th youth medal nomination, Shaanxi University of Science and Technology outstanding teachers and other honorary titles. Mainly engaged in the synthesis of green leather chemicals and the role of collagen fibers, orga-nic/inorganic nanocomposite functional chemicals. |
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