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A kind of polymer adsorption material capable of removing particulate matter in the air and its preparation method

A technology for adsorbing materials and particulate matter, applied in alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve problems such as waste of energy, high cost of use, increased noise, etc., and achieve operating costs Reasonable, simple operation, ideal effect

Active Publication Date: 2020-12-18
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two disadvantages in this filtering technology: one is that there is a contradiction between the filtering effect and the air flow rate, that is, in order to improve the filtering effect, the thickness of the filter layer is often increased, then the air circulation resistance increases, and the air flow rate becomes smaller. To increase the air flow under the premise of ensuring the filtering effect, the power of the fan has to be increased, which not only wastes energy, but also increases the noise
Another disadvantage is that HEPA is for one-time use. Once the dust accumulates too much, it can only be replaced with a new one, and its use cost is relatively high.
In addition, there are potential technical bottlenecks in the filtration method. The removal of PM2.5 is its filtration limit, and it cannot cope with extremely small pollutants like PM0.1. In fact, the smaller the size of the pollutant, the more harmful it will be. If the requirements for air purification are further improved in the future, it is not enough to rely solely on filtration technology.

Method used

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  • A kind of polymer adsorption material capable of removing particulate matter in the air and its preparation method
  • A kind of polymer adsorption material capable of removing particulate matter in the air and its preparation method
  • A kind of polymer adsorption material capable of removing particulate matter in the air and its preparation method

Examples

Experimental program
Comparison scheme
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 in the ethanol solution of propane sultone, keep the concentration of the solution at 4wt.%, soak and react at room temperature 2 hours, and then soaked in water for 5-6 hours, the treated material has obvious expansion and soft...

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. Cured at ℃ for 14 hours, soaked in water repeatedly until the trimethylolpropane was completely removed, then dried in vacuum at room temperature to obtain a white foam material, put the polymer material into the ethanol solution of propane sulphonate, and the concentration of the solution remained 2wt.%, soaking reaction at room temperature for 3 hours, then soaking in water for 5-6 hours, the treated material has ob...

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Abstract

The invention discloses an epoxy based polymer adsorption material and a preparation method thereof. The polymer adsorption material is prepared by solidifying an epoxy resin organic dispersion systemin a solid state, washing the system to remove the dispersant, and finally carrying out a hydrophilic treatment. The material comprises super-macro holes and macro holes with a size of 1 to 50 [mu]m.The porosity is 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. The prepared polymer adsorption material can eliminate particles in the air to purify the polluted air. 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 present invention relates to the preparation of a novel polymer adsorption material and its application in removing particulate matter in the air. The use of the polymer adsorption material can provide a method for removing particulate matter in the air that is convenient, quick and effective. Background technique [0002] Particulate matter with a diameter of less than 2.5 microns is called PM2.5. In recent years, with the intensification of pollution caused by automobile exhaust, industrial combustion, household or nature, the concentration of PM2.5 in the air has risen rapidly, and the harm to human health has become more and more serious. It's getting serious. Air pollution is responsible for nearly 2.1 million premature deaths worldwide each year, according to a new study. A large number of studies have found that the level of PM2.5 is positively correlated with the incidence and mortality of lung cancer. PM2.5 can enter the blood, and what ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C08J9/28C08J9/40C08L63/00B01D49/00
CPCB01D49/00B01J20/262B01J20/28011B01J20/28085C08J9/286C08J9/40C08J2363/00
Inventor 李赛赛张瑞丰靳鑫煜李艳江峰肖通虎龙能兵
Owner NINGBO UNIV