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Preparation and application of fluorinated-siloxane protective surface coating material for stone inscriptions

  • Pengling Li , Fengxian Qiu EMAIL logo , Xiaoying Zhang , Lili Wang , Qian Chen and Dongya Yang
Published/Copyright: December 16, 2014
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Abstract

A series of fluorinated-siloxane protective surface coating materials (FPA/SiO2) were prepared with different contents of dodecafluoroheptyl methacrylate (DFMA) and fixed content of siloxane. The properties of FPA/SiO2 protective materials were investigated by the methods of Fourier transform infrared spectroscopy (FT-IR) spectra, UV-Vis spectrum, transmission electron microscopy (TEM) and thermogravimetric analysis (TGA). The surface morphology and mineralogical analysis of the fresh and weathered stone samples were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The artificial ageing test, which was commonly used as a criterion for the evaluation of the protective ability of FPA/SiO2 coating material, was performed. The results indicate that when the content of DFMA is 30 wt.% and the content of SiO2 is 10 wt.%, the prepared coating material has good comprehensive performances. The artificial ageing test shows that the protective surface coating material has good compatibility with and similar appearance to stone relics. The effect of FPA/SiO2 protective coating material for protection of Jiaoshan Steles Grove (China) is noticeable and it can be widely applied to the protection of stone relics.


Corresponding author: Fengxian Qiu, School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, China, e-mail:

Acknowledgments

This project was supported by the Society Development Fund of Zhenjiang (SH2013020), Project of Science and Technology of Suzhou (SG201338) and the Innovation Program for Graduate Education of Jiangsu Province (SJLX_0477).

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Received: 2014-9-15
Accepted: 2014-11-16
Published Online: 2014-12-16
Published in Print: 2015-8-1

©2015 by De Gruyter

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