Modified activated carbon fiber felt as well as preparation method and application thereof

A technology of activated carbon fiber felt and activated carbon fiber felt, which is applied in the field of modified activated carbon fiber felt and its preparation, can solve the problems of limited fogging agent, improve the sensory quality, increase the loading capacity of fogging agent, and generate high smoke gas Effect

Active Publication Date: 2021-08-20
CHINA TOBACCO FUJIAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But on the whole, the method of increasing the loading capacity of the aerosol is relatively limited

Method used

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  • Modified activated carbon fiber felt as well as preparation method and application thereof
  • Modified activated carbon fiber felt as well as preparation method and application thereof
  • Modified activated carbon fiber felt as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 Preparation of loaded activated carbon fiber felt as a heat-not-burn tobacco segment of aerosol carrier

[0035] Prepare 0.2M Mg(CH 3 COO) 2 Aqueous solution, 0.1M NaOH aqueous solution.

[0036] The specific surface area of ​​activated carbon fiber felt is 1000m 2 / g, monofilament diameter is 20D, pore volume is 0.9cm 3 / g, the ash content is less than 1.5%, it is cut into 10cm×10cm, thickness 1mm for later use.

[0037] Keep glycerin on hand as a hair spray.

[0038] Dry the activated carbon fiber felt at 80°C for 24 hours for activation; take 10 g of the activated carbon fiber felt and soak it in 100 mL of Mg(CH 3 COO) 2 In the aqueous solution, NaOH solution was added dropwise under stirring conditions until the pH value was adjusted to 9, and the reaction was kept for 24 hours, and the activated carbon fiber felt after the reaction was washed with distilled water, and then dried in a vacuum oven at 90°C. The final activated carbon fiber felt is pla...

Embodiment 2

[0041] Example 2 Preparation of loaded activated carbon fiber felt as a heat-not-burn tobacco segment as a carrier of an aerosol

[0042] Prepare 0.3M Mg(CH 3 COO) 2 Aqueous solution, 0.1M NaOH aqueous solution.

[0043] The specific surface area of ​​activated carbon fiber felt is 1500m 2 / g, monofilament diameter is 15D, pore volume is 1.0cm 3 / g, the ash content is less than 1.5%, it is cut into 10cm×10cm, thickness 2mm for later use.

[0044] Dry the activated carbon fiber felt at 80°C for 24 hours for activation; take 10 g of the activated carbon fiber felt and soak it in 100 mL of Mg(CH 3 COO) 2In the aqueous solution, add NaOH solution dropwise under stirring conditions until the pH value is adjusted to 9, keep it standing still for 24 hours, wash the activated carbon fiber felt after reaction with distilled water, and then dry it in a vacuum oven at 60°C. The final activated carbon fiber felt is placed in a heating furnace, heated to 350°C for 8 hours under the p...

Embodiment 3

[0047] Example 3 Preparation of loaded activated carbon fiber felt as a heat-not-burn tobacco segment of aerosol carrier

[0048] Prepare 0.4M Mg(CH 3 COO) 2 Aqueous solution, 0.1M NaOH aqueous solution.

[0049] The specific surface area of ​​activated carbon fiber felt is 2000m 2 / g, monofilament diameter is 10D, pore volume is 1.5cm 3 / g, ash content is less than 1.5%, it is cut into 10cm * 10cm, thickness 5mm standby.

[0050] Dry the activated carbon fiber felt at 80°C for 24 hours for activation; take 10 g of the activated carbon fiber felt and soak it in 10 mL of Mg(CH 3 COO) 2 In the aqueous solution, NaOH solution was added dropwise under stirring conditions until the pH value was adjusted to 9, and the reaction was kept for 24 hours, and the activated carbon fiber felt after the reaction was washed with distilled water, and then dried in a vacuum oven at 80°C. The final activated carbon fiber felt is placed in a heating furnace, heated to 350°C for 6 hours unde...

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Abstract

The invention relates to modified activated carbon fiber felt as well as a preparation method and application thereof. Specifically, the modified activated carbon fiber felt is prepared by the following steps: (1) soaking the activated carbon fiber felt in a magnesium acetate solution, adjusting the pH value to 8-10, reacting for 2-48 hours, cleaning and drying; and (2) heating the dried activated carbon fiber felt to 200-500 DEG C under the protection of inert gas, reacting for 2-8 hours, and cooling to obtain the modified activated carbon fiber felt which can remarkably improve the loading capacity of a fogging agent. The invention further provides a heated non-combustion tobacco section prepared on the basis of the modified activated carbon fiber felt, smoking experiments show that the heated non-combustion tobacco section has the advantages of being high in smoke output and capable of continuously releasing smoke, and the sensory quality of heated non-combustion tobacco products is improved.

Description

technical field [0001] The invention belongs to the field of heating non-combustion products, and in particular relates to a modified activated carbon fiber felt and its preparation method and application. Background technique [0002] Heat-not-burn cigarette (HnB) is a new type of tobacco product. It mainly uses a heat source to heat the pod to generate smoke, and produces smoke for consumers to inhale in a non-combustion state, reducing the harmful smoke produced by combustion and pyrolysis in conventional cigarettes. ingredients without producing sidestream smoke. [0003] The amount of mist produced by HNB is an important factor affecting the puffing experience of HNB products, and the lower heating temperature (200-500°C) of HNB tobacco products often leads to low smoke release and aroma of HNB products. Insufficiency and other issues. [0004] At present, most of the schemes use the method of increasing the load of aerosol, but the ability of the heat-not-burn tobacc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B15/167
CPCA24B15/167
Inventor 刘雯郑泉兴余玉梅陈河祥赖炜扬方钲中陈欣刘加增张颖璞张国强陈辉郑琳
Owner CHINA TOBACCO FUJIAN IND
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