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Total heat exchange graphene nanofiber membrane and preparation method thereof

A nanofiber membrane, full heat exchange technology, applied in the field of membrane materials, can solve the problems of short service life, secondary pollution, easy to mold, etc., and achieve the effect of improving service life, prolonging service life, and avoiding mold

Active Publication Date: 2021-07-20
深圳市前海大众鑫环保科技有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing heat exchange cores generally use paper membranes. During the heat exchange process, the paper membranes will swell when encountering water, which is easy to be damaged due to excessive water absorption, and has a short service life. Easy to mold and cause secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A preparation method for a total heat exchange graphene nanofiber membrane, comprising the following steps:

[0038] (1) Prepare 10ml of dissolving solution: prepare isopropanol and deionized water at a volume ratio of 3:1 to form a uniform mixed solution, as the dissolving solution of ethylene-vinyl alcohol copolymer;

[0039] (2) Dissolution of ethylene-vinyl alcohol copolymer: Add 5g of ethylene-vinyl alcohol copolymer to 10ml of the solution, and stir while heating at a temperature of 70°C to 80°C until the ethylene-vinyl alcohol copolymer is completely dissolved. Dissolving to obtain ethylene-vinyl alcohol copolymer solution;

[0040] (3) Preparation of graphene oxide: First, weigh graphite, concentrated sulfuric acid, sodium nitrate and potassium permanganate in sequence according to the mass ratio of 1:5:50:5, mix graphite and sodium nitrate evenly, and then add concentrated sulfuric acid and permanganese potassium permanganate, and react in an ice-water bath fo...

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Abstract

The invention discloses a total heat exchange graphene nanofiber membrane and a preparation method thereof, wherein the total heat exchange graphene nanofiber membrane comprises a film-forming matrix and a heat-conducting component, and the film-forming matrix is ​​ethylene-vinyl alcohol copolymer. The invention prolongs the service life of the heat exchange core and avoids the mildew problem of the heat exchange core caused by the water absorption of the paper film.

Description

technical field [0001] The invention relates to the technical field of membrane materials, in particular to a total heat exchange graphene nanofiber membrane and a preparation method thereof. Background technique [0002] Air is a necessity for human breathing. Only by ensuring good indoor air quality can a comfortable and healthy living environment be created. In order to solve the problem of indoor air quality, the heat exchange fresh air system came into being. The heat exchange fresh air system mainly sends the outdoor fresh air into the room after heat exchange treatment through the heat exchange core, thereby improving the indoor air quality. Therefore, the heat exchange core has become a key factor affecting the heat exchange of indoor air. However, the existing heat exchange cores generally use paper membranes. During the heat exchange process, the paper membranes will absorb water and be easily damaged due to excessive water absorption, and the service life is shor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/728D01D5/00D01F1/10D01F6/44
CPCD01D5/003D01D5/0061D01F1/10D01F6/44D04H1/728D10B2505/00
Inventor 甘炳臻
Owner 深圳市前海大众鑫环保科技有限公司
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