Preparation method for organosilicon quaternary ammonium salt composite and application thereof

Abstract

The invention relates to a preparation method for organosilicon quaternary ammonium salt composite and application thereof. The preparation method is characterized by comprising the following steps: by means of taking single long chain alkyl dimethyl tertiary amine, r-allyl chloride trimethoxy silane and mixed solvent as raw materials at the molar ratio of 1.0:(1.03-1.05):(7.0-8.0), preparing the single long chain alkyl dimethyl organosilicon quaternary ammonium salt, wherein the mixed solvent comprises carbinol and ethylene glycol; combining a plurality of single long chain alkyl dimethyl organosilicon quaternary ammonium salt monomers at a ratio; and adding a quaternary ammonium salt microcapsule at a certain ratio to prepare the organosilicon quaternary ammonium salt composite. The organosilicon quaternary ammonium salt composite simultaneously performs three actions in the specific application: firstly, the organosilicon quaternary ammonium salt sterilizes and kills pathogenic bacteria on the surface to carry out hazard-free treatment on the pathogenic bacteria; secondly, after the surface coating is dried, the organosilicon quaternary ammonium salt can generate permanent self-cleaning bactriostasis action; and thirdly, the quaternary ammonium salt microcapsule in the composite is slowly released to perform the action of actively sterilizing.

Description

technical field [0001] The invention relates to a preparation method and application of an amphoteric, high-efficiency organosilicon quaternary ammonium salt with optimized screening combination of different carbon chains, and belongs to the field of surface epidemic prevention technology and public health. Background technique [0002] In order to explain the technical characteristics of the "organic silicon quaternary ammonium salt optimization composition" of the present invention and the difference from the prior art, it is first necessary to clarify two professional technical and conceptual issues that are easily confused: (1) The non-eluting antibacterial surface technology has Typical chemical bonding features and self-cleaning antibacterial function, but no active sterilization or anti-epidemic function. (2) The evaluation method and standard adopted for the non-dissolving surface antibacterial technology is the "AATCC flask shaking method", that is, the non-dissolv...

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Problems solved by technology

[0014] The purpose of the present invention is aimed at the existing DC-5700 organosilicon single long chain quaternary ammonium salt, the "silver safety disinfection plate" produced by the U.S. silver base protection system company, and the No. 97197592.2 "advanced surface fungicide" invented by the French Curie Institute. " and China 200510045294.0 invention patent have technical defects such as single chemical structure, single property, single effect, low antibiotic efficacy, long synthesis time, high production cost, limited use, and easy yellowing of textiles after treatment, providing an organic The optimized combination and preparation method of different carbon chains of silicon quaternary ammonium salts, including the method of using mixed solvent reaction and optimized combination application

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