Matting films prepared from waterborne acrylic/micro‐SiO2 blends |
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| Authors: | Juhua Ou Min Zhang Hailu Liu Lei Zhang Hao Pang |
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| Affiliation: | 1. Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China;2. University of Chinese Academy of Sciences, Beijing, China;3. Key Laboratory of Cellulose and Lignocellulosics Chemistry, Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China;4. Foshan University, Foshan city, China |
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| Abstract: | Acrylic resin/micro‐SiO2/polymethyl urea (AC/SiO2/PMU) composites were prepared by physical blends of acrylic resin latex (AC), polymethyl urea resin (PMU), and modified SiO2. The effects of SiO2 and PMU content in the hybrid composites morphology and physical properties were investigated in detail using transmission electron microscopy (TEM), UV‐Vis spectrometry (UV‐Vis), scanning electron microscope (SEM), thermogravimetric analysis (TGA), and contact angle measurement. The results showed that introduction of SiO2 into AC composites could increase the viscosity which caused by gelation and agglomeration of SiO2. The TEM, SEM images, and TGA results indicated that hybrid membranes have phase separation. During the film formation process, a high number of PMU and SiO2 particles of an appropriate size were stranded on the surface of the film to form matting surface. These results highlight the sensitivity of the gloss to the polymer morphology and surface. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132, 41707. |
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| Keywords: | acrylic resins hybrid emulsion matting coating micro‐SiO2 polymethyl urea |
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