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Cigarette filter tip absorbing material containing cellulose

A technology of adsorption materials and cigarette filters, which can be used in e-liquid filter elements, tobacco, applications, etc., and can solve the problems of slow reaction of hydrogen bond elements, easy adsorption saturation, poor selectivity, etc.

Inactive Publication Date: 2020-07-31
HUBEI CHINA TOBACCO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, Chinese patent CN106824061A discloses a filter cigarette holder in which natural zeolite particles are added to cellulose diacetate tow, and zeolite with a large specific surface area is used to adsorb harmful substances in flue gas, but this simple physical adsorption method has general adsorption effect and selectivity Poor results in easy adsorption saturation
[0004] Another example is that the Chinese patent CN109316830A discloses a smoke filter composite material, which selectively absorbs polar substances such as formaldehyde and propionaldehyde in cigarette smoke through the polar elements contained in the material. Sexuality and hydrogen bond elements are relatively slow in response to harmful substances, and cannot efficiently and quickly absorb harmful substances

Method used

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  • Cigarette filter tip absorbing material containing cellulose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] S1: Weigh a certain mass of bamboo pulp cellulose material with a polymerization degree of 500, heat it at 150°C for 20 minutes, and obtain a heat-activated bamboo pulp cellulose material; use distilled water as a solvent to prepare 6wt% sodium hydroxide, 3wt% The sodium hydroxide / urea mixture aqueous solution of urea content; According to mass ratio 5:1, the bamboo pulp cellulose material of thermal activation, lithium nitrate / diphenyl phthalate mixture are dispersed in sodium hydroxide / urea mixture aqueous solution, stir The bamboo pulp cellulose mixture is uniformly obtained; then the bamboo pulp cellulose mixture is frozen at -120° C. for 5 hours until completely frozen, dissolved at room temperature and stirred until completely dissolved to obtain a bamboo pulp cellulose mixture solution.

[0036] S2: Dispersing sodium alginate powder with a molecular weight of 100 kDa in distilled water, heating to 30° C. and blending to obtain a supernatant. According to the mass...

Embodiment 2

[0042]S1: Weigh a certain mass of bamboo pulp cellulose material with a polymerization degree of 500, heat it at 200°C for 40 minutes, and obtain a heat-activated bamboo pulp cellulose material; use distilled water as a solvent to prepare 7wt% sodium hydroxide, 4wt% The sodium hydroxide / urea mixture aqueous solution of urea content; According to mass ratio 8:1, the bamboo pulp cellulose material of thermal activation, lithium nitrate / diphenyl phthalate mixture are dispersed in sodium hydroxide / urea mixture aqueous solution, stir Uniformly obtain a bamboo pulp cellulose mixture; then place the bamboo pulp cellulose mixture at -50°C for 12 hours to freeze completely, dissolve at room temperature and stir until completely dissolved to obtain a bamboo pulp cellulose mixture solution

[0043] S2: Dispersing sodium alginate powder with a molecular weight of 300 kDa in distilled water, heating to 70° C. and blending to obtain a supernatant. According to the mass ratio, 1 part of sodi...

Embodiment 3

[0049] S1: Weigh a certain mass of bamboo pulp cellulose material with a polymerization degree of 500, heat it at 200°C for 60 minutes, and obtain a heat-activated bamboo pulp cellulose material; use distilled water as a solvent to prepare 8wt% sodium hydroxide, 5wt% The sodium hydroxide / urea mixture aqueous solution of urea content; According to mass ratio 10:1, the bamboo pulp cellulose material of thermal activation, lithium nitrate / diphenyl phthalate mixture are dispersed in sodium hydroxide / urea mixture aqueous solution, stir Uniformly obtain a bamboo pulp cellulose mixture; then place the bamboo pulp cellulose mixture at -20°C for 24 hours to freeze completely, dissolve at room temperature and stir until completely dissolved to obtain a bamboo pulp cellulose mixture solution

[0050] S2: Dispersing sodium alginate powder with a molecular weight of 200kDa in distilled water, heating to 70°C and blending to obtain a supernatant. According to the mass ratio, 1 part of sodiu...

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Abstract

The invention discloses a cigarette filter tip absorbing material containing cellulose. The cigarette filter tip absorbing material is formed by blending alginic acid grafted chitosan and cellulose obtained by cellulose with a porous structure, and the alginic acid grafted chitosan is a product obtained by shrinkage reaction of alginic acid and chitosan, the porous cellulose is added as a physicalabsorption effect, and the physical absorption effect is due to a porous structure; the alginic acid grafted chitosan obtained by the shrinkage reaction of alginic acid and chitosan is used as chemical absorption, and the chemical absorption is that the alginic acid grafted chitosan is rich in hydroxyl and amino, so the alginic acid grafted chitosan can be subjected to hydrogen-bond interaction with harmful substances such as phenols and carbonyl cigarettes. The cigarette filter tip absorbing material is advantaged in that physical absorption accelerates the diffusion rate of the harmful substances to a surface of the material till the harmful substances reach the surface of the material, chemical absorption can firmly combine the harmful substances and prevent the harmful substances frombeing released, through the synergistic effect of the chemical absorption and the release, the high-efficiency absorption rate of the harmful substances of cigarettes is obtained.

Description

technical field [0001] The invention relates to the technical field of filter tip materials, in particular to a cigarette filter tip adsorption material containing cellulose. Background technique [0002] my country is a big country in tobacco production and consumption, with 300 million smokers, and the annual consumption of tobacco accounts for 1 / 3 of the world's total sales. And there are various harmful substances that have certain harm to the human body in tobacco, such as formaldehyde, catechol, resorcinol, heavy metal ions and other strong carcinogens. For this reason, people began to seek ways to reduce trace harmful substances in cigarette smoke. [0003] At present, the main method used is to filter harmful substances into cigarette smoke through physical adsorption and chemical adsorption. For example, Chinese patent CN106824061A discloses a filter cigarette holder in which natural zeolite particles are added to cellulose diacetate tow, and zeolite with a large ...

Claims

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Application Information

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IPC IPC(8): A24D3/10A24D3/02
CPCA24D3/10A24D3/02
Inventor 宋旭艳唐浩林何昀潞潘曦
Owner HUBEI CHINA TOBACCO IND
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