Preparation method of acrylic quaternary ammonium salt film with contact antibiosis and antifogging functions

Abstract

The invention discloses a preparation method of an acrylic quaternary ammonium salt film with contact antibiosis and antifogging functions. The preparation method comprises the following steps: respectively adding dimethylaminoethyl methacrylate (DMAEMA) and butyl acrylate (BA) into an ethanol solvent, and initiating free radical polymerization through AIBN to obtain a binary copolymer precursor PBD; dissolving the precursor copolymer in an organic solvent ethanol, adding bromofortune (OB) for ionization to prepare a quaternary ammonium salt polymer PBD-OB, weighing a certain mass of the PBD-OB polymer, dissolving the PBD-OB polymer in an ethanol solution again, adding 1-bromo-4-chlorobutane (BrC4H8Cl) for a cross-linking reaction, pouring into a mold, and naturally volatilizing the solvent at room temperature, and obtaining the acrylic quaternary ammonium salt film with antibacterial and antifogging properties. According to the acrylic quaternary ammonium salt film prepared by the method, the preparation process is simple, controllable and magnifiable, and the film has the characteristics of excellent mechanical property, high light transmittance, excellent antibacterial property,excellent antifogging property and the like.

Description

technical field [0001] The invention belongs to the technical field of antibacterial films, and relates to a preparation of an acrylic quaternary ammonium salt film, in particular to a preparation method of an acrylic quaternary ammonium salt film which simultaneously imparts contact sterilization and anti-fog effects to the film. Background technique [0002] Public health facilities, medical equipment and household kitchen supplies have always been high-risk places for the spread and infection of pathogenic microorganisms. How to solve the pollution and damage caused by microorganisms represented by bacteria has always been a research topic of concern to scientific researchers. [0003] The current common practice is to introduce silver or copper heavy metal ions, halogens or antibiotics into the surface coating or packaging materials to achieve the bactericidal effect. The antibacterial activity of these materials depends on the amount of antibacterial additives released...

AI Technical Summary

Problems solved by technology

However, the quaternized PDMAEMA is too hard, brittle, and difficult to process, which greatly limits its application. Therefore

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