A carboxyl polystyrene magnetic microsphere composite material for reducing ammonia release in cigarette smoke and its preparation method and application

A technology of polystyrene and composite materials, applied in applications, chemical instruments and methods, tobacco, etc., can solve problems such as reducing ammonia release, and achieve the effect of improving adsorption efficiency

Active Publication Date: 2017-01-04
SHANGHAI TOBACCO GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The carboxyl group contained in the carboxypolystyrene magnetic polymer microspheres can have a strong chemical interaction with ammonia, so the magnetic polymer microspheres with carboxyl functional groups can selectively reduce the release of ammonia in the smoke, There are no research reports and patents in this area

Method used

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  • A carboxyl polystyrene magnetic microsphere composite material for reducing ammonia release in cigarette smoke and its preparation method and application
  • A carboxyl polystyrene magnetic microsphere composite material for reducing ammonia release in cigarette smoke and its preparation method and application
  • A carboxyl polystyrene magnetic microsphere composite material for reducing ammonia release in cigarette smoke and its preparation method and application

Examples

Experimental program
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Embodiment 1

[0050] Nano Fe 3 o 4 Synthesis of the method: Weigh 139.01g of ferrous sulfate heptahydrate, dissolve 60.06g of urea in 500ml of deionized water, stir until completely dissolved to form a clear and transparent solution, then add 50ml of ethylene glycol to the system under stirring, mix well, and add The system is fed with high-purity nitrogen to drive away the dissolved oxygen in the solution. Then slowly raise the temperature, it can be seen that the color of the solution gradually changes from light green to turbid, and finally a dark green precipitate is formed, which is refluxed at 90°C for 1 hour. At this time, 30% hydrogen peroxide is added dropwise to the system several times until the dark green precipitate is completely transformed into a black precipitate. Reflux was then continued for an additional 3 hours. The reacted system was cooled to room temperature, then washed with deionized water until neutral, then transferred to a beaker filled with deionized water and...

Embodiment 2

[0061] Nano Fe 3 o 4 Synthesis of: take 13.90g of ferrous sulfate heptahydrate and dissolve it in 250ml of deionized water, feed high-purity nitrogen into the system to drive away the dissolved oxygen in the solution, then add 100ml of aqueous solution containing 28g of hexamethylenetetramine, the solution It immediately turned dark green, then added 2g of polyethylene glycol 200 to it, stirred for half an hour and then slowly raised the temperature, it can be seen that the color of the solution gradually became turbid and finally formed a dark green precipitate, refluxed at 85°C for 1.5 hours, and then distributed to the system The sodium hypochlorite aqueous solution was added dropwise several times until the dark green precipitate was completely transformed into a black precipitate, and then reflux was continued for 4 hours. Cool to room temperature, then filter and wash with deionized water until neutral, transfer to a beaker filled with deionized water, seal and store fo...

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Abstract

The invention relates to a carboxyl polystyrene magnetic microspherical composite material for reducing ammonia release in smoke of a cigarette, which is a porous hollow sphere structure on the surface and is self-assembled by carboxyl polystyrene macromolecular microspheres and nano Fe3O4. The nano Fe3O4 is self-assembled on the surfaces of the carboxyl polystyrene macromolecular microspheres. The carboxyl polystyrene macromolecular microspherical adding material is added into a cigarette filter, so that the ammonia release in main stream smoke of the cigarette can be selectively reduced, and the effective rate can reach over 23.5%.

Description

technical field [0001] The invention relates to a carboxypolystyrene magnetic microsphere composite material for reducing ammonia release in cigarette smoke, a preparation method and application thereof, and belongs to the field of cigarette harm reduction additive materials. Background technique [0002] Ammonia is one of the main harmful substances in cigarette smoke. It is mainly produced by combustion or pyrolysis of precursor substances such as protein, amino acid, nitrate and ammonium salt during the burning process of cigarettes. Ammonia not only affects the smoking quality of cigarettes, but also stimulates the visual and respiratory systems of the human body. Increased blood ammonia has the most obvious damage to brain nerve tissue. Therefore, reducing the content of ammonia in the mainstream smoke of cigarettes is of great significance to improving the quality of cigarettes and improving the safety of smoking. [0003] At present, there are few researches at home ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30A24D3/14
CPCA24D3/14B01J20/06B01J20/261B01J20/28009B01J20/28021B01J20/28054
Inventor 徐同广芦楠郑晓曼蒋成勇周骏
Owner SHANGHAI TOBACCO GRP CO LTD
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