A superporous cationic polymer capable of removing bacteria in the air and its preparation method

A cationic polymer and ultra-large pore technology, which is applied in the fields of alkali metal compounds, chemical instruments and methods, deodorization, etc., can solve problems such as microbial pollution, and achieve the effect of simple operation, reasonable operating cost and ideal effect

Active Publication Date: 2021-03-26
NINGBO UNIV
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  • Summary
  • 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 super-macroporous cationic polymer, and bacteria in the air can be absorbed by the polymer Capture adsorption, so it can achieve the purpose of purifying the air

Method used

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  • A superporous cationic polymer capable of removing bacteria in the air and its preparation method
  • A superporous cationic polymer capable of removing bacteria in the air and its preparation method
  • A superporous cationic polymer capable of removing bacteria in the air and its preparation method

Examples

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Effect test

Embodiment 1

[0020] 60.0g of trimethylolpropane was heated and melted until it became a transparent and flowable liquid, and 3.0g of epoxy resin E-51 was added to stir and disperse, and 0.44g of diethylenetriamine was added, cooled with ice water and vigorously stirred to make the exotherm uniform, and viscous Thick semi-solid, which contains a large number of tiny crystals, poured into a plastic mold, after being completely solidified, placed in the refrigerator for further cooling and crystallization for 3 hours, after freezing, a hard white solid was obtained, solidified at 45°C for 12 hours, soaked in water repeatedly After the trimethylolpropane is completely removed, dry at room temperature in a vacuum to obtain a white foamy material, put the polymer material into an ethanol solution of benzyl bromide, keep the concentration of the solution at 4wt.%, soak and react at 50°C for 2 hours, and then soaked in water for 5 to 6 hours, the treated material has obvious expansion and softening...

Embodiment 2

[0022] Heat and melt 90.0g trimethylolpropane until it becomes a transparent and flowing liquid, add 3.0g epoxy resin E-51 and stir to disperse, then add 0.50g diethylenetriamine, keep stirring to obtain a good dispersion, cool with ice water and vigorously Stir to make it release heat evenly to obtain a viscous semi-solid, which contains a large number of tiny crystals, pour it into a plastic mold, and place it in the refrigerator for further cooling and crystallization for 4 hours after being completely solidified. After freezing, a hard white solid is obtained. Cure at ℃ for 14 hours, soak in water repeatedly until the trimethylolpropane is completely removed, dry in vacuum at room temperature to obtain a white foam material, put the polymer material into the ethanol solution of benzyl bromide, and keep the concentration of the solution at 2wt .%, soaked at 50°C for 3 hours, and then soaked in water for 5 to 6 hours. The treated material has obvious swelling and softening ph...

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Abstract

The invention relates to an ultra-macroporous cationic polymer and a preparation method thereof. The cationic polymer is prepared by solidifying an epoxy resin / organic dispersion system in a solid state, washing the system to remove the dispersant, and finally carrying out a cationization treatment. The material comprises super-macro holes and macro holes with a size of 1 to 50 [mu]m. The porosityis greater than 90%, and the appearance density is less than 0.1 g / mL. During the preparation process, TMP(trimethylolpropane) is taken as the dispersant; due to the proper affinity between TMP and epoxy resin E-51, the epoxy resin is dispersed; during the cooling process, pores are formed by the continuous crystallization; the epoxy resin is solidified in a solid state, and the influence of phase separation on the material is avoided. When air flows through the channels of the material, bacteria are adsorbed to the surface of the material, and the air polluted by microbes is purified. The air purification mode has the advantages that the structure of the device is simple, the material can be repeatedly used for many times, the cost is low, the energy consumption is little, the adaptability is good, furthermore, the material is harmless to the people and the environment, and no secondary pollution is generated.

Description

technical field [0001] The invention relates to a super-macroporous cationic polymer capable of removing bacterial pollution in the air and a preparation method thereof. Using this super-macroporous cationic polymer can conveniently, quickly and effectively remove microbial contamination 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 bact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/50C08G59/24C08J9/26B01J20/26B01J20/28B01J20/30A61L9/16
CPCA61L9/16B01J20/26B01J20/28054B01J20/28095C08G59/245C08G59/502C08J9/26C08J2201/0422C08J2363/00
Inventor 李赛赛张瑞丰靳鑫煜李艳江峰肖通虎龙能兵
Owner NINGBO UNIV
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