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Coatings 2018, 8(1), 31; https://doi.org/10.3390/coatings8010031

The Preparation and Properties of Fluoroacrylate-Modified Polysiloxane as a Fabric Coating Agent

1
and
2,3,*
1
Department of Fashion Design, Wenzhou Vocational and Technical College, Wenzhou 325035, China
2
Zhejiang Wenzhou Research Institute of Light Industry, Wenzhou 325003, China
3
College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
*
Author to whom correspondence should be addressed.
Received: 11 December 2017 / Revised: 6 January 2018 / Accepted: 9 January 2018 / Published: 11 January 2018
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Abstract

Polysiloxanes, which can add high softness and lubricity to treated textiles, have been proposed as softening post-finishing agents for fabric. However, the hydrophobicity of the finished fabric is not satisfactory. In this work, long-chain fluoroalkyl acrylate was used to modify the polysiloxane, aimed at improving hydrophobicity of the finished fabric and retaining its softness simultaneously. Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectra (1H/13C NMR), and thermogravimetric analysis (TGA) were used to characterize the chemical structure and thermal stability of the as-prepared polymer. The modified polysiloxane was tested as a finishing agent. Its film morphologies on the fabric surface and on a silicon wafer were determined. Chemical compositions and performance properties of the finished fabric were investigated. By bonding long-chain fluoroalkyl, the modified polysiloxane presented good thermal stability. Due to the combined effect of the low surface free energy of the perfluorinated side chains and the relatively high surface roughness of the cotton fibers, the treated fabric had favorable hydrophobicity with a WCA of 144.7° on its surface. In addition, their softness was increased, but the color remained unchanged. View Full-Text
Keywords: cotton fabric; coating; polysiloxane; fluoroalkyl acrylate modification; hydrophobicity; atomic force microscope cotton fabric; coating; polysiloxane; fluoroalkyl acrylate modification; hydrophobicity; atomic force microscope
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Jin, H.; Xu, W. The Preparation and Properties of Fluoroacrylate-Modified Polysiloxane as a Fabric Coating Agent. Coatings 2018, 8, 31.

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