A Cigarette Filter Added Chitosan-Graphene Oxide Composite Material
A composite material, chitosan technology, applied in paper coating, cigarette manufacturing, fiber raw material processing, etc., can solve the problems that have not yet been introduced and applied, and there are no relevant patents and literature reports for graphene oxide functional composite materials. Achieve the effects of improving biocompatibility, no additional toxicity, and simple preparation method
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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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