Compound antimicrobial and preparation method thereof

Abstract

The invention provides a compound antimicrobial and a preparation method thereof. The compound antimicrobial comprises micro-nano particles and guanidine polymers by the weight ratio of 1:1 to 1:50, wherein the micro-nano particles at least have the one-dimensional average dimension of 1nm to 1000 mu m; the guanidine polymers are coated on the surfaces of the micro-nano particles and / or embedded in holes or among layers of the micro-nano particles; inorganic or organic particles comprising micro-nano particles are added to a solution of the guanidine polymers; organic alkali is added or not added; the particles and the solution are uniformly mixed and dried for obtaining the compound antimicrobial. When applied to plastics, fibers and rubber, the antimicrobial has high sterilization efficiency, also largely reduces the processing cost of antibacterial materials, and has simple and convenient preparation method.

Description

technical field

[0001] The invention relates to an antibacterial agent and a preparation method thereof. Specifically, it relates to an antibacterial agent that can be used on plastics, fibers and rubber and a preparation method thereof. technical background

[0002] Guanidine salt polymer (polyguanidine) is a polymer based on guanidinium groups. It is a broad-spectrum, high-efficiency, non-toxic, non-irritating, mild and harmless to the human body. It is widely used in the sterilization and disinfection of textiles, agriculture, food, hospitals, plastics, rubber, fibers and other fields, and has become a research hotspot in the field of sterilization in recent years. The existing guanidinium salt polymer types include polyhexamethylene (bi)guanidine hydrochloride, polyhexamethylene (bi)guanidine propionate, polyhexamethylene (bi)guanidine stearate, Or other inorganic acid salts and organic acid salts of polyhexamethylene (bi)guanidine, polyoxyethylene guanidine, etc., and...

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