TiO2/ethylene urea/polyacrylonitrile formaldehyde-removing nanofiber membrane as well as preparation method and application thereof

A nanofiber membrane, polyacrylonitrile technology, applied in separation methods, fiber treatment, fiber chemical characteristics, etc., can solve the problems of poor bonding fastness, poor mechanical properties, uneven dispersion on the surface of textiles, etc., to increase compatibility. , good flexibility, improve the effect of removing formaldehyde
CN114657703AActive Publication Date: 2022-06-24ZHONGYUAN ENGINEERING COLLEGE
12 Cites 0 Cited by

Patent Information

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

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the field of nanofiber membrane preparation, and relates to a TiO2 / ethylene urea / polyacrylonitrile formaldehyde removal nanofiber membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: drying a polyacrylonitrile raw material, adding the dried polyacrylonitrile raw material and ethylene urea into N-N dimethylformamide, stirring until complete dissolution, adding nano titanium dioxide, and carrying out ultrasonic dispersion to obtain a spinning solution; and performing electrostatic spinning on the spinning solution to obtain a nanofiber membrane, and drying to remove the solvent to obtain the TiO2 / ethylene urea / polyacrylonitrile formaldehyde-removing nanofiber membrane. According to the invention, photocatalytic formaldehyde-removing substance TiO2 nanoparticles, a formaldehyde chemical trapping agent and a polymer polyacrylonitrile are compounded, then an electrostatic spinning method is adopted to prepare the formaldehyde-removing functional superfine fiber, and the high specific surface area of the superfine fiber is utilized to adsorb free formaldehyde gas in the air; the concentration of the formaldehyde gas around the TiO2 nanoparticles and the formaldehyde chemical trapping agent is increased, the formaldehyde removal efficiency is improved, and the polymer fibers are good in flexibility and wider in application range.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of nanofiber membrane preparation, and relates to a TiO 2 / ethylene urea / polyacrylonitrile formaldehyde-removing nanofiber membrane and preparation method and application thereof. Background technique

[0002] Formaldehyde in life usually comes from decoration, decoration materials, furniture and coatings, etc., especially man-made panels and their adhesives. Man-made panels include veneer man-made panels, plywood, particleboard, fiberboard, laminate flooring, etc. Phenolic and urea-formaldehyde resins containing formaldehyde are used in the production process. According to statistics, more than 90% of domestic man-made boards are pressed with urea-formaldehyde glue, so free formaldehyde will be generated during application, which is often used in furniture manufacturing or other board applications. Human body has a certain impact. For different types of formaldehyde pollution, the treatment methods include activate...

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
Login to View More