Preparation method and application of polyacrylic acid grease bridging polysilsesquioxane precursor zwitterionic emulsion system

Abstract

The invention discloses a preparation method and application of a water-soluble polymer silane coupling agent zwitterionic emulsion system with a polyacrylic acid grease bridging structure. The composition comprises the following components: amino alkyl polyalkoxy polysilsesquioxane, a quaternary ammonium ion polyalkoxy polysiloxane oligomer, industrial lecithin, industrial acrylic acid, potassiumperphosphate, an industrial aqueous alkali, an anionic macromolecular acrylic silica gel fat-liquoring foaming agent, an industrial bactericide, water-soluble polyamine alkyl polyhydroxy alkyl polyether alkyl triethoxy silicon alkyl polymethylsilsesquioxane, and a polyepoxy alcohol ether alkyl polyether alkyl triethoxy silicon alkyl siloxane oligomer. All the components are mixed; a'one-pot boiling 'copolymerization co-emulsification'fool process' is adopted under the'implosion 'condition, the novel water-soluble polyacrylic acid lecithin silica gel precursor flexible filling agent which hasvarious reactive active groups and has the respective advantages of a lecithin fatting agent, a polyacrylic acid filling agent and a water-soluble polymer silane coupling agent is synthesized; due tothe unique fat liquoring-filling-auxiliary tanning three-in-one performance, the fiber structure can be fully opened, and the leather blank is endowed with the characteristics of flat and fine grain surface, fullness, softness, elasticity, soft feeling and lasting folding resistance, compression resistance and falling resistance. The preparation process is safe, simple, convenient, energy-saving,green, environment-friendly, high in industrial practicability and high in economic benefit.

Description

technical field [0001] The invention relates to the field of preparation methods of water-based silica gel precursor modified leather polyacrylic acid filler and modified leather fatliquoring agent, in particular to a preparation method of polyacrylic acid oil bridged polysilsesquioxane precursor amphoteric ion emulsion system and application. Background technique [0002] Lecithin leather fatliquoring agent and polyacrylic acid filling and retanning agent are two basic materials widely used in tanning. The two are complementary in function. The combined use can make the leather absorb a certain amount of oil while tanning and filling, giving Leather good soft lubricity and padding enhanced properties. [0003] Both excellent lecithin fatliquor and acrylic filling retanning agent require materials with good water solubility and permeability, which can be fully absorbed by leather fibers. Traditional tanning process balances the oily feel of leather by adjusting the amount o...

AI Technical Summary

Problems solved by technology

[0013] In the molecular design of the water-soluble polymer silane coupling agent, the oil structure such as lecithin and the polyacrylic acid structure are introduced, that is, the amphoteric polyacrylic acid polysilsesquioxane precursor combined with the oil bridge structure involved in the present invention The ionic self-emulsifying emulsion system, that is, the silicone precursor flexible filler, is also a member of the above-mentioned water-soluble polymer silane coupling agent family. Its preparation method and its application in the tanning water field have not been reported at home and abroad.

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