Abstract
Bola polyhydroxy silicone quaternary ammonium (BPSQA) was synthesized by quaternization of propyl‐propane thiosulfonate (PTSO) and γ-chloropropyltrimethoxysilane (CPTS). The structure and properties of the BPSQA were characterized with Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), transmission electron microscopic (TEM), zeta potential, and particle size distribution. The performance test show that BPSQA has vesica morphology and superior stability. The surface of cotton fabric treated with BPSQA is smooth. When the molar ratio of PTSO/CPTS was 1:1.25, the zeta potential of the BPSQA in aqueous dispersion reached the maximum + 48 mV. The K/S values and the color appearance of dyed cotton fabrics show that the BPSQA has better washing colorfastness, excellent durability of the rubbing fastness, and UV irradiation fastness than PTSO. Therefore, this facile strategy is important in preparing agent materials for cotton fabric dyeing and reducing the dye content in the wastewater.
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