Preparation method of composite anti-bacterium material

Abstract

Composite antibacterial material and preparation method thereof are provided. Ionic liquid and zirconium a-hydrophosphate undergo intercalation assembling to prepare the antibacterial material. The general formula of the antibacterial materials is shown as follows: Zr(X)y(P04)2, wherein X represents the cation of ionic liquid, y represents 1 or 2. The antibacterial materials can resist high temperature of 250°C or above, and have more than 99% antibacterial efficiency for sensitive bacteria.

Description

technical field [0001] The invention relates to an antibacterial material and a preparation method, in particular to a composite antibacterial material obtained by intercalation assembly synthesis using ionic liquid and alpha-zirconium hydrogen phosphate as raw materials and a preparation method. Background technique [0002] As a new type of functional material, antibacterial materials are widely used. At present, antibacterial materials on the market are roughly divided into two categories: inorganic antibacterial materials and organic antibacterial materials. Inorganic antibacterial materials include metals (silver, copper, zinc, etc.), compounds with these metal ions as functional components, and photocatalytic materials (TiO 2 , ZnO, etc.). Inorganic antibacterial materials have many disadvantages. Taking the most commonly used silver-based antimicrobial materials as an example, see reference 1 (Sambhy, V.; MacBride, M.; Peterson, B.; Sen, A., Silverbromidenanoparticl...

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Problems solved by technology

Inorganic antibacterial materials have many disadvantages. Taking the most commonly used silver-based antimicrobial materials as an example, see reference 1 (Sambhy, V.; MacBride, M.; Peterson, B.; Sen, A., Silverbromidenanoparticle / polymer composites: dualactiontunableantimicrobialmaterials .J.Am.Chem.Soc 2006,128(30),9798-9808.) Introduced, the time required for sterilization and antibacterial is long, easy to change color, expensive, no sterilization and antibacterial for specific bacteria such as Legionella The efficiency; and photocatalytic materials need the irradiation of ultraviolet light source to have better antibacterial effect, which limits the scope of use of inorganic antibacterial materials

Organic antibacterial agents have the characteristics of spectrum antibacterial, fast sterilization speed and high sterilization efficiency, but they also have the disadvantages of toxicity and poor heat resistance.

[0003] The combination of organic antibacterial materials and inorganic materials can improve the heat resistance of organic antibacterial materials. Some researchers at home and abroad have carried out research in this area. Organic antibacterial materials such as chlorhexidine acetate have been successfully added to inorganic layered materials. Among the carrier materials such as montmorillonite, but the tolerance temperature of these composite antibacterial materials is less than 200°C, and in some processes that need to withstand high temperatures (such as plastics, resins, etc.), it is difficult to reach the lower temperature limit required by the process ; see reference 2 (D, Yang.; P. Yuan.; J. X. Zhu.; H.–P. He., Synthesis and charzcterization of antibacterial compounds suing montmorillonite and chlorhexidine acetate. J. Therm. Anal. Calorim. 2007, 89(3), 847-852)

Traditional inorganic antibacterial materials such as metal silver, copper, zinc, etc., although they have good high temperature resistance, are not suitable for adding to plastics, resins, etc. due to easy discoloration and high prices.

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