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A kind of flue gas filter material and its preparation method and application

A filter material and flue gas technology, applied in the field of materials, can solve problems such as the difficulty of harmful gases, achieve the effects of improving the overall filtration performance, improving oil absorption performance, and reducing discomfort

Active Publication Date: 2020-10-16
上海展恒环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fiber diameter of the traditional cellulose acetate filter material is generally about 20 microns, and it is difficult to intercept harmful gases such as coal tar and smaller particles

Method used

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  • A kind of flue gas filter material and its preparation method and application
  • A kind of flue gas filter material and its preparation method and application
  • A kind of flue gas filter material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A smoke filter material includes a non-woven fabric layer 1, a cellulose diacetate film layer 2 with a thickness of 15 μm, a PVDF fiber film layer 3 with a thickness of 3 μm, a cellulose diacetate film layer 4 with a thickness of 20 μm, and a smoke filter material The diameter of the fiber is 200nm; the ratio of the total solid content of the cellulose diacetate layer to the solid content of the lipophilic polymer film layer is 18:1.

Embodiment 2

[0043] A smoke filter material includes a non-woven fabric layer 1, a cellulose diacetate film layer 2 with a thickness of 20 μm, a PAN fiber film layer 3 with a thickness of 4 μm, a cellulose diacetate film layer 4 with a thickness of 10 μm, and a smoke filter material The diameter of the fiber is 230nm; the ratio of the total solid content of the cellulose diacetate layer to the solid content of the lipophilic polymer film layer is 12:1.

Embodiment 3

[0045] A smoke filter material includes a non-woven fabric layer 1, a cellulose diacetate film layer 2 with a thickness of 10 μm, a PVDF fiber film layer 3 with a thickness of 5 μm, a cellulose diacetate film layer 4 with a thickness of 12 μm, and a smoke filter material The diameter of the fiber is 450nm; the ratio of the total solid content of the cellulose diacetate layer to the solid content of the lipophilic polymer film layer is 15:1.

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Abstract

The invention provides a smoke filter material. The smoke filter material comprises a first cellulose diacetate film layer, a lipophilic polymer material film layer and a second cellulose diacetate film layer in sequence along the entry direction of the smoke. The invention also provides a preparation method and application of the smoke filter material. The provided smoke filter material improvesthe adsorption function for the tar oil and can simultaneously filter smoke particles and harmful gas; the moisture of the smoke of the smoke filter material is increased to improve the wetness degree; when the smoke filter material is applied to a cigarette filter, the discomfort of dryness caused by the smoke is lowered, the taste is improved, and the smoke filter material has a wide applicationprospect and higher application value.

Description

technical field [0001] The invention belongs to the field of materials, and relates to a smoke filter material, a preparation method and application thereof. Background technique [0002] The smoke produced by burning cigarettes contains a large number of direct carcinogenic chemicals, among which tar has the highest content. Tar is the product of incomplete combustion of organic matter under anoxic conditions. Its main components are complex mixtures of many hydrocarbons and hydrocarbon oxides, sulfides and nitrogen compounds, including cadmium, arsenic, amines, nitrosamines and radioactive isotopes. And other carcinogens and phenols, fumaric acid and other cancer-promoting substances. [0003] Cigarette products currently on the market usually use cellulose diacetate as the filter rod material to prevent smokers from directly inhaling a large amount of smoke, but there is still room for optimization of the absorption of tar in cigarette smoke. [0004] CN107048476A discl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/10
CPCA24D3/10
Inventor 张秀芳陈越成
Owner 上海展恒环保科技有限公司
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