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

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 ( 1 H/ 13 C 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.

Preparation of fluorinated polysiloxane and its application in modified polyacrylates

“…In addition, in the strong peaks at 0.7 and 2.0 ppm should be the characteristic absorption peaks of hydrogen atoms connected to CF in the fluorinated polysiloxane structure. This is basically consistent with the literature reports 23 …”

“…This is basically consistent with the literature reports. 23 1 H NMR (CDCl 3 , 400 MHz) δ ppm: 5.90-6.05, 5.74- polysiloxane on the conversion and coagulation. It can be seen that as the vinyl content of fluorinated polysiloxane decreases and the molecular weight increases, the monomer conversion gradually decreases and the coagulation increases.…”

Preparation of Fluoroalkyl-Acrylate-Modified Polysiloxane Nanocomposite and Its Surface Properties as a Superhydrophobic Coating Material

“…Therefore, a higher-resolution instrument was required. The AFM is a new instrument for measuring the fine morphology of polymer films at nanoscale and is often encountered in recent publications [18][19][20][21]. So, in this study we also used silicon wafer as the simulated fiber matrix to study the fine morphology of the PFAS-SiO 2 -3 film by AFM, and the results are shown in Figure 5.…”

Thermosetting resins from a tetra‐functional vinylbenzene compound possessing cyclic siloxane cores

“…Commercially‐available products of polysiloxanes possessing reactive groups for further crosslinking and modification reactions have been widely use. Modified and functional polysiloxanes are also reported in literature 1–6 with incorporation of other functional moieties to the structures of polysiloxanes.…”

“…Commerciallyavailable products of polysiloxanes possessing reactive groups for further crosslinking and modification reactions have been widely use. Modified and functional polysiloxanes are also reported in literature [1][2][3][4][5][6] with incorporation of other functional moieties to the structures of polysiloxanes. cD 4 compounds possessing reactive groups could be considered as effective units for building up polymeric materials, since chemical reactions could be performed at the reactive groups of the cD 4 compounds to result in functional cD 4 analogues.…”