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.
Highlights
Prominent film-forming capacity and low glass transition temperature, polysiloxanes have often been chosen as softening post-finishing agents for fabric [1,2]
The aim of our present study is to examine the application properties of our as-prepared PFAS as the fabric coating material study is to examine the application properties of our as‐prepared PFAS as the fabric coating material and to shed light on the molecular design and the development of new fluorosilicon copolymers as and to shed light on the molecular design and the development of new fluorosilicon copolymers as functional coating finishes
2975 cm−1, 2909 cm−1, 1452 cm−1, 1377 cm−1, and 1641 cm−1 resulted from the stretching and bending vibrations of alkyl C–H and the stretching vibration of the C=C bond in fluoroalkyl acrylate (FA), respectively
Summary
Because the surface free energies of the silicone copolymer films are not low enough, the waterproofing property of the treated fabrics is suboptimal Fluorinated polyacrylate is another “triple-proofing” textile finish and endows the treated fabric with excellent water- and oil-repellency due to its very low surface free energy [3,4,5]. Fluorosilicon copolymer, prepared by modifying polysiloxane with fluorinated acrylate, presents the characteristics of these two polymers, providing polysiloxane with the high elasticity and flexibility of organosilicon, but with the low surface energy and strong mechanical and adhesive properties of fluorinated polyacrylate. This has recently been a hot topic in the field of textile post-finishing agents
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
