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Cationic skeleton polymer capable of removing bacteria in air, and preparation method thereof

A cationization, polymer technology, applied in separation methods, alkali metal compounds, chemical instruments and methods, etc., can solve problems such as microbial contamination, and achieve the effects of simple operation, reasonable operating cost, and low air resistance

Active Publication Date: 2015-10-28
詹月花
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The primary technical problem to be solved by the present invention is to provide a new air purification scheme with convenient operation and good effect for the problem of microbial pollution in the air of human settlements. It relies on a cationized polymer material with a skeleton structure, which is easy to Attaching small water droplets can make the air circulate quickly and realize the full intersection of water and air. The bacteria in the air can be absorbed by the cationic surface or transferred to the water droplets, so the purpose of purifying the air can be achieved.

Method used

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  • Cationic skeleton polymer capable of removing bacteria in air, and preparation method thereof
  • Cationic skeleton polymer capable of removing bacteria in air, and preparation method thereof
  • Cationic skeleton polymer capable of removing bacteria in air, and preparation method thereof

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Embodiment Construction

[0019] Below in conjunction with embodiment the present invention is described in further detail.

[0020] Material preparation: Dissolve commercial chitosan in dilute acetic acid aqueous solution (the concentration of 1-2wt.% for the viscosity greater than 400mPa; the concentration of 2-3wt.% for the viscosity in the range of 200-400mPa) and add a small amount Cationic surfactant (such as dodecyltrimethylammonium chloride, the content in the solution is 0.1 ~ 0.2wt.%), then soak the melamine sponge in the solution, take it out and suck off the excess with vacuum Solution, ensure that it does not flow out under standing, and then dry it in an oven at 60°C for 2 to 3 hours, and then soak it in a sodium carbonate solution with a pH of 9 to 10 for 20 to 30 minutes to deprotonate chitosan After forming an insoluble film to cover the surface of the skeleton, the material is washed with clear water and then soaked in a 10-15wt.% ethanol solution of ethylene glycol diglycidyl ether t...

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Abstract

The invention relates to an ionized skeleton polymer, a preparation method thereof, and an application thereof in removal of particulate substance pollution. A chitosan coating layer is coated on a skeleton by using the special three-dimensional skeleton structure of present melamine sponge, ethylene glycol diglycidyl ether reacts with the chitosan coating layer to crosslink the chitosan coating layer and make the surface of the skeleton carry a large amount of epoxy groups, the epoxy groups react with sodium bisulfite to generate sulfonate anions, and poly(dimethyldiallylammonium chloride) is introduced to the surface of the above obtained material by using electrostatic interaction to form a polyelectrolyte hydration layer in order to make the surface of the skeleton adsorb a large amount of small water droplets due to cationization, so when air flows in material pores, bacteria can be adsorbed to the surface of the material or can be transferred to the small water droplets, thereby purification of microbe polluted air is realized. The material for purifying air has the advantages of simple device structure, multi-time recycling, low cost, small energy consumption, strong adaptability, harmlessness to environment and human, and no secondary pollution.

Description

technical field [0001] The invention relates to a cationic skeleton polymer capable of removing bacterial pollution in the air and a preparation method thereof. Using the cationic skeleton polymer can conveniently, quickly and effectively remove microbial pollution in the air. Background technique [0002] The air is not a good living place for microorganisms, because not only does the air not have the nutrients and sufficient water needed for the growth and reproduction of microorganisms, but also the ultraviolet radiation in the sun. However, soil, water bodies, various rotting organic matter, and microorganisms on human and animal bodies can all be carried into the air with the movement of the airflow. There are indeed many invisible microorganisms floating in the air, and they mainly include various cocci, Bacillus, pigment-producing bacteria, and fungal spores that are resistant to drying and radiation, etc., and there may also be pathogenic bacteria such as Mycobacter...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30B01D53/04B01D53/14C08J9/42C08J9/40C08B37/08
Inventor 李伟逊张瑞丰尚传洋梁云霄江峰肖通虎龙能兵
Owner 詹月花