High-temperature-resistant composite antibacterial agent and preparation method thereof

Abstract

The invention provides a high-temperature-resistant composite antibacterial agent and a preparation method thereof. The composite antibacterial agent is prepared from the following components: chitin,a chitosan solution, a zinc lactate solution, a starch solution, a sodium hydroxide solution, a hydrochloric acid solution, an enzymatic hydrolysate, ethyl acetate, a dopamine solution, calcium oxide, a silver nitrate solution and deionized water. The prepared antibacterial agent is high in antibacterial efficiency and resistant to high temperature, the preparation method is simple and low in cost, the particle size of the antibacterial agent is uniform, no agglomeration phenomenon occurs, and the antibacterial agent has excellent antibacterial property.

Description

technical field [0001] The invention belongs to the technical field of antibacterial materials, and in particular relates to a high temperature-resistant composite antibacterial agent and a preparation method thereof. Background technique [0002] Antibacterial materials are a new type of materials with antibacterial and bactericidal functions. They are made by adding one or several specific antibacterial agents. From the development of antibacterial materials at home and abroad, antibacterial plastics are the fastest growing and most widely used. Wide range of antibacterial materials. [0003] There are many kinds of antibacterial agents, which can be roughly divided into three categories: inorganic, organic and natural according to their chemical composition. At present, inorganic antibacterial agents are the most widely used in antibacterial plastics and the largest antibacterial agents in the market, mainly silver-based antibacterial agents. It is characterized by good ...

AI Technical Summary

Problems solved by technology

[0003] There are many kinds of antibacterial agents, which can be roughly divided into three categories: inorganic, organic and natural according to their chemical composition. At present, inorganic antibacterial agents are the most widely used in antibacterial plastics and the largest antibacterial agents in the market, mainly silver-based antibacterial agents. It is characterized by good safety, heat resistance and durability. It is currently the most widely used antibacterial agent in fiber plastics. The disadvantages are the high price and the delayed effect of antibacterial. It cannot kill bacteria quickly like organic antibacterial agents. , and has almost no inhibitory effect on fungi and molds. At the same time, the chemical properties of silver are active, and it is easy to oxidize to form dark silver oxide, thereby reducing the antibacterial effect and affecting the appearance of the product. In addition, the inorganic antibacterial powder has poor compatibility with polymers. It is easy to agglomerate in the matrix plastic, which will bring great difficulties to the processing of materials such as spinning and film drawing

This process has high cost, complex process and poor practicability