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Cigarette filter additive material and preparation method and application thereof

A technology of cigarette filter and additive materials, which is applied in application, e-liquid filter elements, separation methods, etc., can solve problems such as reducing the amount of crotonaldehyde released from cigarettes, which is not conducive to large-scale production, and reduces smoke crotonaldehyde, so as to improve the selection Excellent adsorption capacity, beneficial to adsorption, and the effect of overcoming adsorption defects

Active Publication Date: 2020-06-05
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Patent CN108606363A discloses an additive for reducing the release of crotonaldehyde in cigarettes and its preparation method and application, which utilizes the method of adsorbing polyvinylpyrrolidone and vinylpyrrolidone-maleic acid copolymer with a molecular weight of 1000-1000000 on the surface of activated carbon particles Composite filter particles were prepared to improve the filtration efficiency of composite filters for crotonaldehyde in smoke, but the adsorption of macromolecular polymers on the surface of activated carbon will affect the adsorption performance of activated carbon itself on other harmful substances in smoke
Patent CN105996123A discloses a cigarette filter rod for reducing the release of crotonaldehyde in smoke, which uses calcium stearate, polypropylene resin, polyvinyl alcohol, dibenzylidene sorbitol, silica gel, activated carbon, oak bark, hydrogen Sodium, cetyltrimethylammonium bromide, appropriate amount of deionized water and other materials are used to make composite particles, and then drawn to prepare composite material filter rods to replace traditional acetate fiber filter rods and polypropylene fiber filter rods, which can reduce smoke The characteristics of crotonaldehyde, and the preparation process of this method is cumbersome, and the process involves high-temperature equipment, which is not conducive to large-scale production
Patent CN104941606B discloses a molecular sieve-polyethersulfone composite adsorbent, which uses a dual-functional molecular sieve of basic and transition metal ions to reduce the release of HCN and crotonaldehyde in mainstream cigarette smoke; Good for mass production

Method used

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  • Cigarette filter additive material and preparation method and application thereof
  • Cigarette filter additive material and preparation method and application thereof

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preparation example Construction

[0021] An aspect of the embodiments of the present invention provides a method for preparing a cigarette filter additive material, which includes:

[0022] Mix surfactant, activated carbon, and water evenly to obtain surfactant-modified activated carbon;

[0023] And, uniformly mix the surfactant-modified activated carbon, attapulgite, pregelatinized starch and binder solution to obtain attapulgite-activated carbon composite material, and then granulate to obtain attapulgite-activated carbon composite material Particles, that is, to obtain cigarette filter additive materials.

[0024] In some more specific embodiments, the method includes: dissolving the binder in a binder solvent to obtain the binder solution.

[0025] Further, the binder solvent is an aqueous solution, especially preferably a 1-5 wt% aqueous solution of acetic acid, an aqueous solution above 98°C, or an aqueous solution above 95°C.

[0026] Furthermore, the solvent for dissolving the chitosan is an aqueous...

Embodiment 1

[0059] A cigarette filter additive material for selectively reducing the adsorption of crotonaldehyde in mainstream cigarette smoke, including the following components: 200g attapulgite, 300g activated carbon, 400g pregelatinized starch, 3g cetyltrimethylammonium bromide, 8g Chitosan, 800g contains 1% acetic acid aqueous solution in mass fraction.

[0060] The preparation method of the cigarette filter additive material that adsorbs crotonaldehyde of the present embodiment comprises the following steps:

[0061] (1) 3g cetyltrimethylammonium bromide is dissolved in deionized water to form cetyltrimethylammonium bromide solution, wherein the concentration of cetyltrimethylammonium bromide solution is 100mg / L, then add 300g of activated carbon to the hexadecyltrimethylammonium bromide solution, then stir at 30°C for 3h, after the adsorption equilibrium, filter the activated carbon, rinse with deionized water, and dry to obtain the modified surfactant Activated carbon;

[0062...

Embodiment 2

[0067] A cigarette filter additive material for selectively reducing the adsorption of crotonaldehyde in cigarette mainstream smoke, including the following components: 300g attapulgite, 100g activated carbon, 600g pregelatinized starch, 6g tetradecyltrimethylammonium bromide, 5g Carboxymethylcellulose.

[0068] The preparation method of the cigarette filter additive material that adsorbs crotonaldehyde of the present embodiment comprises the following steps:

[0069] (1) 6g tetradecyltrimethylammonium bromide is dissolved in deionized water to form tetradecyltrimethylammonium bromide solution, wherein the concentration of tetradecyltrimethylammonium bromide solution is 50mg / L, then add 100g of activated carbon to tetradecyltrimethylammonium bromide solution, and then stir at 20°C for 6h. Activated carbon;

[0070] (2) The carboxymethyl cellulose of 5g is dissolved in 1000g water to form carboxymethyl cellulose aqueous solution;

[0071] (3) the attapulgite powder of 300g,...

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Abstract

The invention discloses a cigarette filter tip additive material and a preparation method and application thereof. The preparation method of the cigarette filter tip additive material comprises the following steps: firstly, uniformly mixing the surfactant, the activated carbon and the water to obtain surfactant modified activated carbon; uniformly mixing the surfactant modified activated carbon, attapulgite, pre-gelatinized starch and a binder solution to obtain an attapulgite-activated carbon composite material, and granulating the attapulgite-activated carbon composite material to obtain attapulgite-activated carbon composite particles, namely the cigarette filter additive material. The filter tip additive material provided by the invention is loose and porous in surface, contains a large number of micropores, mesopores and macropores, and is beneficial to adsorption of harmful substances in main stream smoke of cigarettes; and meanwhile, the cigarette filter tip additive material prepared by the invention is good in stability, and when the cigarette filter tip additive material is applied to a cigarette rate filter tip, the content of crotonaldehyde in cigarette smoke is remarkably reduced, and no adverse effect is caused to cigarette aroma and smoking taste.

Description

technical field [0001] The invention belongs to the technical field of cigarette materials, and in particular relates to a cigarette filter additive material and a preparation method and application thereof. Background technique [0002] Smoking is closely related to human health and is an important topic of common concern all over the world. With the regulation of tobacco control policies in many countries and the active promotion of anti-smoking groups, the concept that smoking is harmful to health has become a social consensus. However, based on the huge economic interests of the established cigarette industry and its related industries and the strong demand of huge addicted smokers, it is impossible to completely ban the production and sale of cigarettes in the short term. Therefore, improving the safety of smoking has become a common goal of consumers and the tobacco industry. More than 4,000 substances can be detected in the smoke produced during the burning of cigar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/16A24D3/10B01J20/24B01J20/30B01D53/02
CPCA24D3/163A24D3/10B01J20/20B01J20/22B01J20/12B01J20/24B01D53/02B01D2257/7027
Inventor 刘晓阳程昱川刘丰华李志祥许高杰孔繁星李艳高飞
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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