Water-insoluble phosphonium salt bactericidal agent and its preparation method

Abstract

The invention relates to a water-insoluble quaternary ammonium salt bactericide and the preparation method thereof. The germicide is prepared by adopting silica gel inorganic material as a carrier and grafting amino-quaternary ammonium salt or quaternary ammonium-quaternary ammonium salt functional groups on the surface. The water-insoluble quaternary ammonium salt bactericide has excellent antibacterial activity, and has the advantages that the bactericide has a persistent effect of quaternary ammonium salt antibacterial polymer and also has a high-efficiency, quick and broad-spectrum antibacterial effect; the raw material is widely accessible; the cost is low; the synthetic process is simple. The bactericide is water-insoluble, and can be activated, regenerated and reutilized after the antibacterial rate is reduced, and is widely applicable to the sterilization of the fluid media such as various industrial and domestic waters, etc. and the preparation of antibacterial materials.

Description

technical field [0001] The invention relates to a bactericide, more precisely a water-insoluble quaternary phosphonium salt bactericide with silica gel inorganic materials as carriers. The invention also relates to a preparation method of the water-insoluble quaternary phosphonium salt fungicide. Background technique [0002] In order to overcome the shortcomings of water-soluble fungicides such as high toxicity, easy foaming, irritation, and residual toxicity after being discharged with sewage, people began to study water-insoluble fungicide polymers. [0003] US 6,261,538 synthesized a class of water-insoluble polyquaternary phosphonium salt fungicides, which were prepared by using resins capable of chloromethylation as carriers, immobilized amino-quaternary phosphonium salts, quaternary ammonium-quaternary phosphonium salts and other fungicidal active components. . The above-mentioned bactericide has rapid and efficient bactericidal activity, can be used repeatedly, and...

AI Technical Summary

Problems solved by technology

Therefore, it has excellent bactericidal activity, not only has the long-acting, high-efficiency, fast, and broad-spectrum bactericidal effects of quaternary phosphonium salt-type bactericidal polymers based on resins, but also overcomes the susceptibility to temperature and pressure of organic polymers as carriers. Influenced defects have a rigid structure, a wide range of sources, low cost and better thermal stability, and can be recycled and recycled, and have advantages in environmental protection

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