Preparation method of inorganic-organic hybrid antibacterial agent with antibacterial and hydrophobic functions and application of antibacterial agent

Abstract

The invention relates a preparation method of an inorganic-organic hybrid antibacterial agent with antibacterial and hydrophobic functions and application of the antibacterial agent in a polymer material matrix. The antibacterial agent overcomes the problem in the prior art that the antibacterial performance of a natural antibacterial agent cannot completely meet the demands of users when being used alone. Specifically, the antibacterial agent adopts an amino-containing coupling agent as a bridge, and antibacterial inorganic nanoparticles such as titanium dioxide and zinc oxide are coated withantibacterial aldehydes such as organic citral and cinnamaldehyde to form the inorganic-organic hybrid antibacterial agent. The inorganic-organic hybrid antibacterial agent can be widely applied to polymer materials such as PP and ABS and achieve an antibacterial and hydrophobic effect; the antibacterial rate of the antibacterial agent for gram-negative bacteria such as escherichia coli can reach99.9%, the antibacterial rate of the antibacterial agent for gram-positive bacteria such as staphylococcus aureus can reach 99.9%, the antibacterial rate of the antibacterial agent for aspergillus niger and other molds can reach 0 grade, and the contact angle between the material surface and water can reach 120 degrees. Meanwhile, the antibacterial polymer material maintains the great mechanicalproperty.

Description

technical field [0001] The invention relates to the field of antibacterial materials, in particular to a preparation method and application of an antibacterial hydrophobic inorganic-organic hybrid antibacterial agent with both hydrophobic and antibacterial functions. Background technique [0002] Microorganisms exist in all aspects of people's lives, and a large part of them are pathogenic microorganisms, which pose a greater threat to human health. However, with the development of society, people pay more and more attention to health, and put forward higher requirements for the antibacterial properties of daily necessities, hygiene products, medical products and other products that they come into contact with in life. Therefore, the research and development of antimicrobial agents have attracted more and more attention. [0003] Due to the advantages of low price, light weight and corrosion resistance, polymer materials are more and more widely used in medical supplies and...

AI Technical Summary

Problems solved by technology

Garcia–SalinasS, NV Harohall and others have studied the antibacterial properties of natural antibacterial agents such as essential oils and cinnamaldehyde. The results show that they all have relatively good antibacterial properties, but their antibacterial effects on bacteria and molds are not satisfactory and need to be further improved.

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