2results about How to "Long-term antibacterial effect" patented technology

This invention discloses an antibacterial air filter material and its preparation method, relating to the field of filter material technology. In preparing the antibacterial air filter material, terephthalaldehyde is reacted sequentially with 2-aminobenzimidazole and diethyl phosphite to obtain a phosphorus-nitrogen composite flame retardant; silica is reacted sequentially with γ-glycidyl etheroxypropyltrimethoxysilane and 1-hydroxymethyl-5,5-dimethylhydantoin to obtain modified silica; the modified silica is chlorinated with sodium hypochlorite to obtain haloaminated silica; 70-80 parts of polyacrylonitrile, 5-6 parts of the phosphorus-nitrogen composite flame retardant, and 3-4 parts of haloaminated silica are formulated into a spinning solution, and electrospinned to obtain a polyacrylonitrile fiber membrane; the polyacrylonitrile fiber membrane is reacted sequentially with ethylenediamine and curcumin to obtain the antibacterial air filter material. The antibacterial air filter material prepared by this invention has the advantages of both antibacterial and flame retardant properties.

The present application relates to the field of daily chemical products, and discloses a light-color transparent odorless concentrated sterilization bead content, which comprises the following components in percentage by mass: p-chloro-m-xylenol 15-25%, non-ionic surfactant 0-5%, anionic surfactant containing at least C21 dibasic acid 10-20%, alcohol solvent containing at least isohexyl alcohol 43-55%, inorganic alkali agent 3-5%, bacteriostatic agent 0-2%, essence 0-2%, and water in remainder amount. The concentrated sterilization bead content of the present application uses inorganic alkali to replace organic amine alkali agent, so that the product appearance is stable and transparent light color under low cost conditions; the present application uses the combination of "non-ionic surfactant+C21 dibasic acid+isohexyl alcohol" to replace alcohol and ether solvents, so that the p-chloro-m-xylenol is significantly solubilized under the premise of no odor and safety.