Biquaternary ammonium salt-containing diamine or diol monomer, preparation method of monomer, water-based non-toxic antibacterial polyurethane emulsion prepared by monomer, and preparation method of emulsion

Abstract

The invention discloses a biquaternary ammonium salt-containing diamine or diol monomer with the following structural general formula, and also discloses a preparation method of the monomer, water-based non-toxic antibacterial polyurethane emulsion prepared by the monomer, and a preparation method of the emulsion. The biquaternary ammonium salt-containing diamine or diol monomer disclosed by the invention can easily serve as a chain extender with an antibacterial function to be introduced into polyurethane, so the antibacterial effect of the polyurethane is greatly improved; the biquaternary ammonium salt-containing diamine or diol monomer disclosed by the invention also can be introduced quantitatively as required so as to meet different antibacterial requirements; the water-based non-toxic antibacterial polyurethane emulsion disclosed by the invention has a unique multi-block structure and a suspended group with an excellent antibacterial effect, and can form a stable emulsion in water; the structure and the performance of the water-based non-toxic antibacterial polyurethane emulsion are easy to regulate and control; the water-based non-toxic antibacterial polyurethane emulsion has excellent biocompatibility, adhesion resistance, biomembrane formation resistance and antibacterial performance, and can be widely applied to antibacterial treatment in the fields of textile, plastic, food packaging, daily necessities, water treatment, medical treatment and public health and the like; and the preparation process of the water-based non-toxic antibacterial polyurethane emulsion is simple, mature in process, easy to control and convenient to industrialize.

Description

technical field

[0001] The invention belongs to diamine or diol monomers containing diquaternary ammonium salts and polyurethane emulsions prepared from diamine or diol monomers containing diquaternary ammonium salts, including the technical field of preparation, in particular to a diquaternary ammonium salt-containing polyurethane emulsion Monomer of diamine or diol and preparation method thereof, water-based non-toxic antibacterial polyurethane emulsion prepared therefrom and preparation method thereof. Background technique

[0002] As a new type of polymer material, polyurethane has been widely used in medical, health, food and other industrial fields due to its good biocompatibility and excellent physical and mechanical properties. Ordinary polyurethane body materials do not have antibacterial effect, but polyurethane molecules have strong designability and good tailorability, and can achieve multiple functions by introducing special functional groups, such as the introd...

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