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Cigarette filter tip added with chitosan-graphene oxide composite material

A composite material and cigarette filter technology, applied in the field of cigarette filters, can solve the problems that have not yet been introduced and applied, graphene oxide functional composite materials have not seen relevant patents and literature reports, etc., to improve biocompatibility, No additional poison, efficient adsorption effect

Active Publication Date: 2015-03-04
CHINA TOBACCO HENAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, although graphene oxide composite materials have been applied in many fields, so far, there are no relevant patents and literature reports on graphene oxide functional composite materials in the field of cigarette harm reduction and tar reduction, and the introduction and application of graphene oxide functional composite materials have not yet come

Method used

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  • Cigarette filter tip added with chitosan-graphene oxide composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The chitosan-graphene oxide composite material for the cigarette filter prepared by the present embodiment specifically comprises the following steps:

[0027] (1) Prepare 0.2 mg / mL graphene oxide dispersion aqueous solution with ultrapure water;

[0028] (2) Chitosan was added to 3% (v / v) acetic acid aqueous solution to prepare a 2.0 mg / mL chitosan-acetic acid solution;

[0029] (3) With constant stirring, add 980 mL chitosan-acetic acid solution in step (2) dropwise to 200 mL graphene oxide dispersion aqueous solution prepared in step (1), and continue stirring for 1 h, A chitosan-graphene oxide composite suspension is formed, and the suspension is further dried to obtain a finished chitosan-graphene oxide composite material that is convenient for long-term storage.

[0030] The mass proportion of graphene oxide in the chitosan-graphene oxide composite material prepared in the above step (3) is 2%.

[0031] The cigarette paper filter unit prepared by the chitosan-gr...

Embodiment 2

[0039] The preparation method of the chitosan-graphene oxide composite material for cigarette filters prepared in this example is the same as in Example 1, only the volume of the graphene oxide dispersion aqueous solution is adjusted to 300 mL, and the volume of the chitosan acetic acid solution is adjusted to 470 mL.

[0040] The mass proportion of graphene oxide in the prepared chitosan-graphene oxide composite material was 6%.

[0041] The preparation steps of the cigarette filter tip prepared by the chitosan-graphene oxide composite material are the same as in Example 1, the weight of the paper filter tip unit in each filter tip is 80 mg, and the weight of the paper filter tip unit in each filter tip is 80 mg. The mass of chitosan-graphene oxide composite material loaded was also 5 mg.

[0042] The finished cigarettes were prepared by using the above-mentioned binary composite filter, and further smoke detection and analysis were performed. For specific test results, see ...

Embodiment 3

[0044] The preparation method of the chitosan-graphene oxide composite material for cigarette filters prepared in this example is the same as in Example 1, only the volume of the graphene oxide aqueous solution is adjusted to 400 mL, and the volume of the chitosan acetic acid solution is adjusted to 460 mL.

[0045] The mass proportion of graphene oxide in the prepared chitosan-graphene oxide composite material was 8%.

[0046] The preparation steps of the cigarette filter tip prepared by the chitosan-graphene oxide composite material are the same as in Example 1, the weight of the paper filter tip unit in each filter tip is 80 mg, and the weight of the paper filter tip unit in each filter tip is 80 mg. The mass of chitosan-graphene oxide composite material loaded was also 5 mg.

[0047] The finished cigarettes were prepared by using the above-mentioned binary composite filter, and further smoke detection and analysis were performed. For specific test results, see the test re...

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Abstract

Belonging to the technical field of cigarette filter tip production, the invention relates to a chitosan-graphene oxide composite material with efficient adsorption capacity on harmful ingredients of cigarette main stream smoke and a cigarette filter tip prepared from the material. The cigarette filter tip is prepared from the chitosan-graphene oxide composite material by a solution miscibility technique. Firstly the chitosan-graphene oxide composite material is prepared into a cigarette paper filter tip unit, and then the cigarette paper filter tip unit is prepared into a binary composite filter tip. Under the circumstance of a very small adding amount into the cigarette filter tip, the chitosan-graphene oxide composite material for cigarette filter tips provided by the invention can realize efficient adsorption of volatile aldehyde and ketone promoting molecules, phenol, HCN and the like. Also, the composite material is green, environment-friendly, and free of additional toxicity. At the same time, the preparation method has the characteristics of simplicity, easily available raw materials, easy scale production and low production cost. Thus, the cigarette filter tip added with the chitosan-graphene oxide composite material has broad application prospects in the harm and tar reduction field of cigarettes.

Description

technical field [0001] The invention belongs to the technical field of cigarette filter production, and relates to an additive material with functional adsorption for cigarette mainstream smoke, and more specifically relates to a chitosan- A graphene oxide composite material and a cigarette filter prepared by using the material. Background technique [0002] There are many kinds of cigarette filter adsorption materials, and the filter additives that have been reported or applied mainly include activated carbon, natural materials, mineral materials, biological materials, polymers, etc., but most of the above filter additives have added amounts Large, low adsorption efficiency, affecting cigarette aroma, short service life, single and uneven addition form, etc. Therefore, the types and addition methods of filter tip additives need to be increased and developed. [0003] Graphene is a carbon atom with sp 2 Hybrid orbitals form a two-dimensional planar structure of a honeycomb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/12A24D3/18
Inventor 高明奇冯晓民张展李明哲聂聪鲁平纪朋董艳娟杨金初王墨染
Owner CHINA TOBACCO HENAN IND
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