Ethylene urea/polyacrylonitrile formaldehyde-removing nanofiber membrane prepared by electrostatic spinning method as well as preparation method and application of ethylene urea/polyacrylonitrile formaldehyde-removing nanofiber membrane

A nanofiber membrane, electrospinning technology, applied in electrospinning, separation methods, fiber processing and other directions, can solve the problems of secondary pollution of indoor air, furniture surface marks, furniture surface damage, etc., to effectively capture, The effect of increasing compatibility and improving catalytic efficiency
CN114657704AActive Publication Date: 2022-06-24ZHONGYUAN ENGINEERING COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGYUAN ENGINEERING COLLEGE
Publication Date
2022-06-24

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Abstract

The invention belongs to the field of nanofiber membranes, and relates to an ethylene urea / polyacrylonitrile formaldehyde-removing nanofiber membrane prepared by an electrostatic spinning method as well as a preparation method and application of the ethylene urea / polyacrylonitrile formaldehyde-removing nanofiber membrane. The preparation method comprises the following steps: (1) adding dried polyacrylonitrile and ethylene urea into N-N dimethylformamide, and stirring to obtain an electrostatic spinning solution; and (2) performing electrostatic spinning on the electrostatic spinning solution in the step (1) to obtain a nanofiber membrane, and then drying the nanofiber membrane to remove the solvent to obtain the ethylene urea / polyacrylonitrile formaldehyde-removing nanofiber membrane. An electrostatic spinning method and a chemical formaldehyde purification method are combined, and the nanofiber with the efficient formaldehyde purification function is prepared by utilizing the advantages that polymer superfine fibers are convenient to form and can adsorb formaldehyde gas, increase the concentration of the formaldehyde gas around ethylene urea and improve the catalytic efficiency due to the relatively high specific surface area.
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Description

technical field

[0001] The invention belongs to the field of nanofiber membranes, and relates to an ethylene urea / polyacrylonitrile formaldehyde-removing nanofiber membrane prepared by an electrostatic spinning method and a method and application thereof. Background technique

[0002] Formaldehyde is recognized as a harmful gas in the world. It is carcinogenic and can cause bronchial diseases, such as asthma. After inhaling formaldehyde, it will cause dizziness, nausea, vomiting, chest tightness and other symptoms. In severe cases, it will also lead to Memory decline. For different types of formaldehyde pollution, the treatment methods include activated carbon physical adsorption, photocatalytic oxidation, plasma decomposition, chemical reaction and biodegradation and other formaldehyde removal technologies. However, among the above-mentioned methods for removing formaldehyde, the chemical reaction removing formaldehyde technology has a wide range of applications, has the h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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