Preparation, Characterization of Silicone Succinate Ester and its Application in Leather Industry

Abstract

The silicone succinate ester surfactant (PMPS) was synthesized by the raw materials of polyether alcohol amine modified polysilosane (PAPS) and maleic anhydride (MA) at 90°C for 4.5h, and p-toluenesulfonic acid (PTSA) was used as the catalyst. Sulfated neatsfoot oil, oxidized-sulfited fish oil was mixed with PMPS to prepare a new leather fatliqour (F-1). The structure of the materials and PMPS were characterized by FTIR. The biodegradability of F-1 was analyzed by BOD5 and CODCr and the tissue slices of the leather samples oiled by PMPS were observed by Multimedia Microscope to study the fatliquoring effect. The waterproof properties and the fatliquored leather were determined. All the results indicated that the F-1 fatliquor has good fatliquoring effect.

Hydrophobic and water resistant fish leather: a fully sustainable combination of discarded biomass and by-products of the food industry

“…In previous years, several solutions have been proposed in terms of hydrophobic coatings or treatments for leather even if not specifically for fish leather. For instance, Serenko et al proposed fluorine silane as a hydrophobic agent in ethanol to spray on leather; 7 Qiang et al prepared a polyether organosilicone succinate ester mixed with sulfated neatsfoot oil and oxidized-sulfited fish oil to make a new leather fatliquor to improve the waterproofing ability of the leather; 9 Feng et al developed a polymerized vinyltriethoxysilane coating deposited on the leather by using a low-pressure and cold plasma technique increasing the hydrophobicity of the leather itself; 10 Ma et al sprayed two layers on leather, one made with polyacrylate emulsion and the other made with ethanol dispersion of hydrophobic silica nanoparticles. 6 However, in the last few years the environmental impact of materials and processes is becoming more and more relevant, also in the production of hydrophobic coatings for textiles.…”