Absorption additive chitosan-Cu compound used in cigarette filter tip and its preparation method

A technology of chitosan and complexes, which is applied in the fields of e-liquid filter elements, applications, tobacco, etc., can solve the problems of carcinogenicity, achieve the effect of improving the removal effect, improving the grade of cigarettes, and important social and environmental benefits

Inactive Publication Date: 2005-03-23
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2) Toxic effects on cells: such as nitriles, amines, heavy metal elements;
[0007] 4) Carcinogenic to the human body: such as benzopyrene of polycyclic aromatic hydrocarbons, dimethylnitrosamine, β-naphthylamine, etc.;

Method used

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  • Absorption additive chitosan-Cu compound used in cigarette filter tip and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of chitosan-Cu complexes. A certain amount of chitosan (5.0g, glycogen mole number is about 0.032mol) powder (deacetylation degree DD ≥ 95%) is dissolved in 1.0% dilute hydrochloric acid, stirred and dissolved into a hydrochloric acid solution of 2.0% chitosan; CuSO 4 ·5H 2 O (1.0g, 0.004mol) was dissolved in an appropriate amount of water; the CuSO 4 Add the solution dropwise to the stirred chitosan hydrochloric acid solution, keep stirring until evenly mixed and leave it standing (4 to 6 hours for standing time); add 2 times the volume of the mixed organic solvent dropwise, and the mixed organic solvent is composed of absolute ethanol: acetone The volume ratio is 1:1, keep stirring evenly for about 10-15min, the mixture is centrifuged at 3000rpm for 20min, and the precipitate is separated, washed twice with absolute ethanol equal to the volume of the original mixture, and centrifuged, the obtained blue precipitate is at 60 After drying at ℃ or natural d...

Embodiment 2

[0037] The dosage of chitosan is 5.6g (mole number of glycogen is about 0.036mol), CuSO 4 ·5H 2 The amount of O was 1.0 g (0.004 mol), and the complex reaction was carried out. The rest of the operations were the same as in Example 1, and the Cu content in the obtained complex was measured to be 4%.

Embodiment 3

[0039] The dosage of chitosan is 3.75g (mole number of glycogen is about 0.024mol), CuSO 4 ·5H 2 The amount of O was 1.0 g (0.004 mol), and the complex reaction was carried out. The rest of the operations were the same as in Example 1, and the Cu content in the obtained complex was measured to be 6.4%.

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PUM

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Abstract

A chitosan-Cu matches as the adsorptive additive of filter tip for cigarette in order to adsorb tar and nitosamine from the smoke of cigarette is prepared from chitosan and copper sulfate through proportional mixing in organic solvent, centrifugal deposition, washing, drying and pulverizing.

Description

technical field [0001] The invention relates to an adsorption additive chitosan-Cu complex used for cigarette filters and its preparation, belonging to the technical field of cigarette filter preparation. Background technique [0002] The smog produced by the burning of cigarettes contains at least 2,000 kinds of harmful components, among which polycyclic aromatic hydrocarbons such as benzopyrene, benzanthracene, and nitrosamines have carcinogenic effects, and the carcinogens in cigarette smoke include cyanide, ortho Cresol, phenol, etc. When smoking, most of the cigarette smoke is inhaled into the lungs, and a small part enters the digestive tract together with saliva. Some harmful substances in the smoke stay in the lungs, and some enter the blood circulation and flow to the whole body. Under the synergistic action of carcinogens and carcinogens, normal cells can be damaged to form cancer. [0003] Harmful components in cigarette smoke include carbon monoxide, nicotine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/06
Inventor 陈坚华兆哲陆新杨占平曹建华马晓龙
Owner JIANGNAN UNIV
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