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Smoke filter composite material as well as preparation method and application thereof

A composite material and flue gas technology, applied in the direction of filtration separation, separation method, and dispersed particle filtration, etc., can solve the problems of limited application range, achieve wide application range, improve adsorption and filtration effect, and good flexibility

Inactive Publication Date: 2019-02-12
上海洁晟环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding amino compounds to fibers to prepare composite fiber paper is mainly used for paper filter rods, and its application range is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] In this example, the flue gas filter composite material is prepared by the following method

[0053] Dissolve cellulose diacetate in N,N-dimethylacetamide to prepare a 14wt% polymer solution, control the spinning voltage to 35kV, the ambient temperature to 35°C, the relative humidity to 35%, and the spinning solution injection speed to be 5mL / h, the spinneret distance is 31cm, electrospun 10 μm thick cellulose diacetate film on corrugated paper, the average fiber diameter is 200nm, the resulting fiber film is immersed in 5wt% chitosan solution for 20min, and dried at 80°C to constant weight, A smoke filter composite material is prepared.

Embodiment 2

[0055] In this example, the flue gas filter composite material is prepared by the following method

[0056] Dissolve cellulose diacetate in dimethyl sulfoxide, prepare 10wt% polymer solution, control spinning voltage 15kV, ambient temperature 20°C, relative humidity 30%, spinning solution injection speed 1mL / h, spinning A cellulose diacetate film with a thickness of 10 μm was electrospun on corrugated paper at a distance of 20 cm, and the average diameter of the fibers was 100 nm. The obtained fiber film was immersed in a 5 wt % polyethyleneimine solution for 5 min, and dried at 80 ° C to constant weight to prepare smoke Air filter composite.

Embodiment 3

[0058] In this example, the flue gas filter composite material is prepared by the following method

[0059] Dissolve polyacrylonitrile in N,N-dimethylformamide, prepare 25wt% polymer solution, control spinning voltage 40kV, ambient temperature 50°C, relative humidity 60%, spinning solution injection speed 5mL / h , with a spinneret distance of 50 cm, electrospun a polyacrylonitrile film with a thickness of 15 μm on corrugated paper, with an average fiber diameter of 350 nm, soaked the obtained fiber film in a 15 wt% acrylamide solution for 30 min, and dried it at 80 ° C to constant weight to prepare smoke Air filter composite.

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Abstract

The invention provides a smoke filter composite material as well as a preparation method and application thereof. The smoke filter composite material is a composite material adopting a nano fibrous membrane comprising bottom cloth as a carrier to be loaded with a nitrogen-containing compound. The smoke filter composite material is the composite material by adopting the nano fibrous membrane to load the nitrogen-containing compound, and compared with the existing physical adsorption material or chemical adsorption material, the effect of adsorbing and filtering harmful substances in the smoke can be effectively improved, the selectivity effect for aldehydes substances in cigarette smoke is better, and the harm of the cigarette smoke for the human body can be effectively reduced; and moreover, by virtue of the high specific surface area, ultrahigh surface area and porosity of the nano fibrous membrane, the adsorbent can be better stored, the softness is extremely good, the smoke filter composite material can be added into various filter apparatuses, and the application range is wide.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a smoke filter composite material and its preparation method and application. Background technique [0002] The health damage caused by smoking has become a global concern. Smoke contains a variety of harmful components, and low-molecular-weight aldehydes and ketones are one of the most important ones. Low-molecular-weight aldehydes and ketones mainly include formaldehyde, acetaldehyde, acetone, acrolein, propionaldehyde, crotonaldehyde, methyl ethyl ketone and butyraldehyde. The eight kinds of compounds in it have strong cilia toxicity, and long-term exposure can cause chronic rhinitis, nervous system dysfunction, etc. Among them, formaldehyde, acrolein and crotonaldehyde are the most prominent. After inhalation, they will inhibit the removal of lung excreta and cause lung diseases. [0003] In order to reduce the harmful aldehydes in cigarette smoke without affecting the taste ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D46/00
CPCB01D39/14B01D46/0036
Inventor 张秀芳陈越成柴明飞赵付平
Owner 上海洁晟环保科技有限公司
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