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Preparation of acrylic resin/modified nano-SiO2 via sol-gel method for leather finishing agent

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Abstract

Acrylic resin/nano-SiO2 (AR/nano-SiO2) composite was prepared by physical blends of acrylic resin (AR) and nano-SiO2, which was synthesized via the sol-gel method of tetraethoxysilane (TEOS) catalyzed with alkali. The synthetic conditions, such as surfactant type, the content of nano-SiO2 sol, stirring speed, mixed temperature and ultrasonic treatment, on nanocomposites’ property were studied in detail. DSC indicated the glass transition temperature of AR/nano-SiO2 (Tg = −26.7°C) was a little higher than that of the acrylic resin (Tg= −29.6°C). Water uptake confirmed that the water resistance of AR/nano-SiO2 was improved by 55.94% and the solvent resistance by 54.79% when compared with AR. The improved properties of leather finished by AR/nano-SiO2 were shown, in contrast to AR treatment; water vapor permeability was increased by 9.15% and the finish adhesion by 10.35%.

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Acknowledgment

This investigation was supported by National Natural Science Foundation of China (No.: 20674047), Ministry of Education New Century Excellent Talents Foundation of China (Item No.: NCET-04-0973), Shaanxi Province Natural Science Foundation (Item No.: 2004E114) and the Team Work Project of Science Innovation of Shannxi University of Science and Technology (Item No.: SUST-A03).

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Authors and Affiliations

  1. College of Resource and Environment, Shaanxi University of Science & Technology, Xianyang City, China, 712081

    Jian Zhong Ma, Jing Hu & Zong Sui Yang

  2. China Leather Association, Bei Jing City, China, 100740

    Lingyun Liu

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  1. Jian Zhong Ma
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  2. Jing Hu
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  3. Zong Sui Yang
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  4. Lingyun Liu
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Correspondence to Jing Hu.

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Ma, J.Z., Hu, J., Yang, Z.S. et al. Preparation of acrylic resin/modified nano-SiO2 via sol-gel method for leather finishing agent. J Sol-Gel Sci Technol 41, 209–216 (2007). https://doi.org/10.1007/s10971-006-1506-6

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  • DOI: https://doi.org/10.1007/s10971-006-1506-6

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