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Nano cyclodextrin composite additive reducing phenol in cigarette smoke and preparation method and application thereof

A compound additive, cigarette smoke technology, applied in the application, tobacco, smoke oil filter and other directions, can solve the problems of unsuitability for large-scale industrial production, complex process, high preparation cost, achieve good industrial practicability, reduce phenol index, Inexpensive effect

Active Publication Date: 2015-07-01
CHINA TOBACCO ZHEJIANG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual production process of these materials, either the preparation cost is high, or the process is complicated, and it is not suitable for large-scale industrial production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Dissolve 3.0 g of carboxymethyl-β-cyclodextrin and 0.1 g of chitosan in 100 mL of aqueous solution, and use the carboxymethyl-β-cyclodextrin aqueous solution as the mother liquor, and add the chitosan aqueous solution dropwise, At 25 ℃ and a stirring rate of 500 rpm, in-situ nucleation electrostatic self-assembly was carried out for 1 h to obtain a dispersion of cyclodextrin nanoparticles; using coconut shell charcoal for cigarettes as a carrier, it was impregnated with the cyclodextrin nanoparticles to disperse In the solution, at 35 ℃ for 2.5 h, the cyclodextrin nanoparticles were loaded on the surface by electrostatic driving in situ growth method, and the coconut shell charcoal loaded cyclodextrin with micro-nano structure was obtained after filtration, washing and drying. Composite additives of nanoparticles. The mass fraction of cyclodextrin nanoparticles in the composite additive is 5.0%.

[0025] The above composite additives are applied to cigarette filters, a...

Embodiment 2

[0029] Dissolve 2.0 g of carboxymethyl-β-cyclodextrin and 1.5 g of polydimethyldiallyl ammonium chloride in 100 mL aqueous solution, and use carboxymethyl-β-cyclodextrin aqueous solution as the mother liquor, and poly Dimethyl diallyl ammonium chloride aqueous solution was added dropwise, and in situ nucleation electrostatic self-assembly was carried out at 25 °C and a stirring rate of 500 rpm for 3 h to obtain a dispersion of cyclodextrin nanoparticles; Coconut shell charcoal was used as a carrier, which was impregnated in the above dispersion of cyclodextrin nanoparticles, and left at 35 °C for 1.5 h to drive in-situ growth through static electricity, and the surface was loaded with cyclodextrin nanoparticles, which were filtered, washed and dried. Finally, the composite additive of coconut shell carbon loaded cyclodextrin nanoparticles with micro-nano structure is obtained. The mass fraction of cyclodextrin nanoparticles in the composite additive was 10.0%.

[0030] The ab...

Embodiment 3

[0034] Dissolve 1.0 g of carboxymethyl-β-cyclodextrin and 1.0 g of polymethacryloyloxyethyltrimethylammonium chloride in 100 mL of aqueous solution, and use the aqueous solution of carboxymethyl-β-cyclodextrin as the mother liquor , adding polymethacryloyloxyethyltrimethylammonium chloride aqueous solution dropwise, at 25 ℃ and 1000 rpm stirring rate, in situ nucleation electrostatic self-assembly for 2 h, to obtain cyclodextrin nanoparticles Dispersion liquid: using coconut shell charcoal for cigarettes as a carrier, impregnating it in the above-mentioned cyclodextrin nanoparticle dispersion liquid, standing at 25 °C for 2.5 h, and carrying cyclodextrin nanoparticles on its surface through static electricity driven in-situ growth method, After filtering, washing and drying, the composite additive of coconut shell carbon loaded cyclodextrin nanoparticles with micro-nano structure is obtained. The mass fraction of cyclodextrin nanoparticles in the composite additive was 8.0%. ...

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Abstract

The invention relates to a nano cyclodextrin composite additive reducing phenol in cigarette smoke. According to the nano cyclodextrin composite additive, with coconut shell charcoal for cigarettes as a carrier and carboxymethyl-beta-cyclodextrin and cationic polyelectrolyte as raw materials, the composite additive, with the surface loaded with cyclodextrin nano particles, of a micro-nano structure is obtained in an electrostatic drive in-situ growth mode. The cyclodextrin nano particles loaded in the composite additive are complex compounds of the carboxymethyl-beta-cyclodextrin and the positive-ion polyelectrolyte, and the mass percentage of the cyclodextrin nano particles loaded in the composite additive is 0.1%-10.0%. By adjusting the composition ratio of the carboxymethyl-beta-cyclodextrin to the cationic polyelectrolyte in the cyclodextrin nano particles, the reducing effect of the composite additive on the release amount of the phenol in the cigarette smoke can be conveniently regulated and controlled. The raw materials of the composite additive are convenient and easy to obtain and low in price, and a preparation method of the composite additive is environmentally friendly, safe and controllable and has good industrial applicability.

Description

technical field [0001] The invention relates to the technical field of cigarette harm reduction, in particular to a nano-cyclodextrin composite additive for reducing phenol in cigarette smoke and its preparation method and application. Background technique [0002] As society pays more and more attention to smoking and health issues, research on harm reduction technology for cigarette products has drawn great attention from the tobacco industry. Aiming at various harmful components in cigarette smoke, researchers have developed a variety of harm reduction technologies, such as composite filters, application of filter ventilation and dilution technology, use of cigarette paper with high air permeability and fast static burning rate, and the use of expanded shredded tobacco And methods such as expanded stem shreds. Among them, the modification of cigarette filters is one of the commonly used harm reduction methods. By adding or compounding biological materials, polymer materi...

Claims

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Application Information

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IPC IPC(8): A24D3/06
CPCA24D3/061
Inventor 周国俊周建华李霞徐建刘金莉黄芳芳尹洁宣润泉
Owner CHINA TOBACCO ZHEJIANG IND
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