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Polymer, preparation method and application thereof, and base material with surface coated with polymer

A polymer and compound technology, applied in the field of antibacterial, can solve the problems of antibacterial agent antibacterial effect is not durable, antibacterial textiles are not washable antibacterial effect, not durable, etc., to achieve excellent antibacterial effect, excellent antibacterial persistence effect

Pending Publication Date: 2022-01-04
浙江技立新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above existing problems, the present application can effectively solve the problem that the antibacterial effect of the antibacterial agent is not durable by providing a polymer, especially for textiles, it can also solve the problem that the antibacterial textile is not washable and the antibacterial effect is not durable

Method used

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  • Polymer, preparation method and application thereof, and base material with surface coated with polymer
  • Polymer, preparation method and application thereof, and base material with surface coated with polymer
  • Polymer, preparation method and application thereof, and base material with surface coated with polymer

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preparation example Construction

[0066] In some embodiments of the present application, a method for preparing the above-mentioned polymer is also provided, comprising the following steps:

[0067] The isocyanate group-containing compound and the polyol compound are polymerized to obtain a polyurethane prepolymer containing free isocyanate groups; then a quaternary ammonium salt unit precursor containing isocyanate-reactive functional groups is added for chain extension reaction, and then sequentially added. The halogen amine unit precursor and the ultraviolet absorbing functional compound undergo a capping reaction; and then undergo quaternization and halogenation treatment to obtain the above polymer.

[0068] Specifically, an isocyanate-containing compound is used as an initiator to react with a polyol compound in the presence of nitrogen and a catalyst to form a polyurethane prepolymer, and an appropriate amount of organic solvent is added to the reaction system to control adhesion.

[0069] In some embod...

Embodiment 1

[0090] (1) Synthesis of antibacterial polymers

[0091] Synthesis of haloamine precursor compounds: 0.03mol 2-chloroethylamine hydrochloride was added to a 250mL three-necked flask, stirred and dissolved with 50mL ethanol, then 0.03mol sodium hydroxide powder was added, stirred at room temperature for 1 h, and the pH of the solution was adjusted to Neutral; add 50mL of ethanol to dissolve 0.03mol 5,5-dimethylhydantoin sodium salt, add the solution to the above-mentioned three-neck flask, and react at a constant temperature of 65°C for 20h to remove the insoluble sodium chloride solid in the system , after the ethanol was removed by rotary evaporation to obtain a yellow viscous liquid, which was dried in a vacuum oven at 45°C for 24 hours to obtain 3-aminoethyl-5,5-dimethylhydantoin.

[0092] Synthesis of antimicrobial polymer: Calculated according to the molar ratio of initiator, bio-based polyol, cationic chain extender, haloamine precursor compound, and UV absorber as 4:1:1....

Embodiment 2

[0096] (1) Synthesis of antibacterial polymers

[0097] Synthesis of antibacterial polymer: Calculated according to the molar ratio of initiator, bio-based polyol, cationic chain extender, haloamine precursor compound, and ultraviolet absorber as 4:1.2:1.5:1.2:1.2. Add 1.2mol of soybean oil into a three-necked flask with a stirrer and a reflux condenser, fix the three-necked flask in an oil bath, heat up to 120°C for 1 hour of vacuum dehydration, then cool down to 75°C, add 4mol of hexamethylene diisocyanate , castor oil and dibutyltin dilaurate with a mass fraction of two monomers of isophorone diisocyanate and 2% dibutyltin dilaurate, react for 2 hours after passing nitrogen for 5 minutes to form a polyurethane prepolymer, add an appropriate amount of acetone to control viscosity during the reaction; keep the temperature constant , add 1.5mol cationic chain extender N,N-dimethyl-2,2-dihydroxybutylamine for chain extension reaction for 2h; at the same temperature, add 1.2mol ...

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Abstract

The invention discloses a polymer, a preparation method and application thereof and a base material with the surface coated with the polymer, and relates to the technical field of antibiosis. The polymer takes polyurethane as a main chain and is grafted with a quaternary ammonium salt unit, a halamine unit and an ultraviolet absorption functional unit, wherein the quaternary ammonium salt unit is at least one of a side chain, an inner chain and a tail end, and the halamine unit and the ultraviolet absorption functional unit are the tail ends. The problem that the antibacterial effect of an antibacterial agent is not lasting can be effectively solved, and especially for textiles, the problem that the antibacterial effect is not lasting due to the fact that antibacterial textiles are not washable can be solved.

Description

technical field [0001] The present application relates to the field of antibacterial technology, in particular to a polymer, its preparation method and application, and a substrate coated with the polymer. Background technique [0002] Microorganisms, such as bacteria, molds or fungi, not only cause diseases, but also cause objectionable odors and unclean pollution, thereby destroying the healthy natural environment, and their metabolism affects products, such as using The viscosity of the product increases, destroying the coating and causing deterioration and decay of the substance under the coating, etc. Therefore, controlling and eliminating harmful microorganisms is the most effective way for human beings to maintain their own health and living environment. Antimicrobial agents are a class of chemical substances that can keep the growth or reproduction of certain microorganisms (bacteria, fungi, yeast, algae, viruses, etc.) below the necessary level within a certain per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/10C08G18/36C08G18/83C08G18/32D06M15/564D06M101/06
CPCC08G18/10C08G18/36C08G18/833C08G18/831D06M15/564D06M16/00D06M2101/06C08G18/3275
Inventor 杨世玉曹风采张东殷允杰
Owner 浙江技立新材料股份有限公司
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