Chitosan and application of chitosan derivatives

A chitosan derivative and chitosan technology are applied in the application field of chitosan and its derivatives to achieve good biocompatibility, improve coastal ecological environment, and improve the effect of low value

Inactive Publication Date: 2017-02-22
威海红印食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, starting from energy conservation and emission reduction, it is necessary to cut off the source of fine particles to control the atmospheric environment. However, due to the complexity of my country's current industrial structure and layout and the source of fine particles, it is difficult to complete the source control of fine particles in a short period of time.

Method used

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  • Chitosan and application of chitosan derivatives
  • Chitosan and application of chitosan derivatives
  • Chitosan and application of chitosan derivatives

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Dissolve 2 g of chitosan (1800 kDa) in 1000 ml of 0.2% (mass fraction) acetic acid to obtain a chitosan solution, and then put the chitosan solution into an atomizing device. In a closed laboratory (35m 3 ), through the air particle counter (Dylos1700, produced in the United States) to monitor the concentration of fine particulate matter PM10 and PM2.5 in the indoor air in real time (the concentration is measured by the number of particles / 0.01 cubic feet). After the fine particle readings in the closed laboratory are stable, the prepared chitosan solution is sprayed in the air in the laboratory through an atomization device, and the solution sprays 6.5mL, and the fine particle PM10 in the laboratory (see figure 1 ) and PM2.5 (see figure 2 ) concentration changes. Such as figure 1 and figure 2 It is shown that after spraying the chitosan solution, the concentration of PM10 and PM2.5 in the room both increased briefly and then decreased rapidly. This is mainly bec...

Embodiment 2

[0026] Dissolve 2 g of carboxymethyl chitosan (the degree of substitution is 80%) in 1000 ml of distilled water to obtain a carboxymethyl chitosan solution, and then put the carboxymethyl chitosan solution into an atomizing device. In a closed laboratory (35m 3 ), through the air particle counter (Dylos 1700, produced in the United States) to monitor the concentration of fine particulate matter PM10 and PM2.5 in the indoor air in real time (the concentration is measured by the number of particles / 0.01 cubic feet). After the fine particle readings in the closed laboratory are stable, the prepared carboxymethyl chitosan solution is sprayed in the air in the laboratory through an atomization device, and the solution sprays 6.5mL, and the fine particle PM10 in the laboratory (see image 3 ) and PM2.5 (see Figure 4 ) concentration changes. Such as image 3 and Figure 4 It is shown that after spraying carboxymethyl chitosan solution, the concentration of PM10 and PM2.5 in the ...

Embodiment 3

[0028] N-trimethyl chitosan quaternary ammonium salt (substitution degree is 100%) 2g is dissolved in 1000ml distilled water to obtain N-trimethyl chitosan quaternary ammonium salt solution, after the N-trimethyl chitosan quaternary ammonium salt solution The ammonium salt solution is loaded into the atomization device. In a closed laboratory (35m 3 ), through the air particle counter (Dylos 1700, produced in the United States) to monitor the concentration of fine particulate matter PM10 and PM2.5 in the indoor air in real time (the concentration is measured by the number of particles / 0.01 cubic feet). After the readings of the fine particles in the closed laboratory are stable, the prepared N-trimethyl chitosan quaternary ammonium salt solution is sprayed in the air in the laboratory through the atomization device, and the solution sprays 6.5mL, and the fine particles in the laboratory PM10( see Figure 5 ) and PM2.5 (see Figure 6 ) concentration changes. Such as Figur...

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PUM

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Abstract

The invention belongs to marine chemical engineering technologies, and particularly relates to chitosan and an application of chitosan derivatives serving as fine particulate scavenging agents. According to the chitosan and the application of the chitosan derivatives, by the aid of adsorption characteristics of the natural marine biological amino polysaccharide-chitosan and the chitosan derivatives, the chitosan and the chitosan derivatives are used for fine particulates in sedimentation air, so that a new path is that marine biological resources are applied to land industries and developed, a new method for preventing haze is provided, living environments of residents are improved, human health level is improved, and the chitosan and the application of the chitosan derivatives have important social significance.

Description

technical field [0001] The invention belongs to marine chemical engineering technology, in particular to the application of chitosan and its derivatives. Background technique [0002] In recent years, large-scale smog has occurred in most of the central and eastern regions of my country, including North China, Huanghuai, Jianghuai, and Jiangnan. Beijing's fine particulate matter index has been on the verge of "exploding the table" many times, and the air quality continues to be in a state of serious pollution at level six. Haze weather has had a huge impact on public life and health, so the public is paying more and more attention to PM10 and PM2.5, the main factors that cause haze. Fine particulate matter mainly comes from processes such as thermal power generation, industrial production, vehicle exhaust, biomass combustion, secondary generation, and road dust. The chemical composition of fine particulate matter is very complex, affected by factors such as its source, for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D47/06
CPCB01D47/06
Inventor 迟桂丽
Owner 威海红印食品有限公司
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