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Organosilicone modified styrene-acrylic latex: preparation and application

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Abstract

In this paper, organosilicone modified styrene-acrylic (OSA) latexes for waterproof coating were synthesized through core–shell emulsion polymerization. The influence of emulsifier type and dosage on the size, size distribution and morphology of the latex was systematically investigated. The water absorbance and thermal decomposition behavior and the mechanical properties of the waterproof coating depending on the organosilicone introduced on the latex shell were also studied. Transmission electron microscopy and dynamic light scattering results indicated that the particles had a regular spherical morphology with different diameters and distributions. Thermal gravimetric analysis results revealed that the thermal stability of the latex films was improved with the introduction of organosilicone. The waterproof property of the OSA latex film was obviously increased as compared to that of the styrene-acrylic latex film. The tensile strength and fracture elongation of the elastic waterproof building coating made of the OSA latex and cement powder were significantly greater than that made of the styrene-acrylic latex and cement powder.

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Acknowledgments

This research was supported by a National Natural Science Foundation of China (No. 51073133), a China Jiangsu Provincial Natural and Scientific Grant (Project SBK200930208), China Jiangsu Provincial Innovative Grant (Project SBC200910282), and was supported by Jiangsu Province, Project No. 08KJA430003 (China).

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, People’s Republic of China

    Xiaoyan Qian, Aiping Zhu & Lijun Ji

  2. YAPP Automotive Parts Co., Ltd., Yangzhou, 225009, People’s Republic of China

    Xiaoyan Qian & Lijun Ji

Authors
  1. Xiaoyan Qian
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  2. Aiping Zhu
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  3. Lijun Ji
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Correspondence to Aiping Zhu.

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Qian, X., Zhu, A. & Ji, L. Organosilicone modified styrene-acrylic latex: preparation and application. Polym. Bull. 70, 2373–2385 (2013). https://doi.org/10.1007/s00289-013-0958-4

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  • DOI: https://doi.org/10.1007/s00289-013-0958-4

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