Preparation and application of hollow tubular conductive polymer composite fiber aerogel material

A technology of conductive polymer and composite fiber, which is applied in the field of composite materials, can solve the problems of reducing the heat storage density of composite phase change materials, reducing the heat storage performance of composite phase change materials, and limited improvement of thermal conductivity, so as to achieve good light-thermal Transformation characteristics, ease of large-scale production, effects of preventing leakage

Active Publication Date: 2021-01-15
UNIV OF SCI & TECH BEIJING
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of porous materials is generally cumbersome, which limits the application of phase change materials, and the direct addition of a small amount of heat conduction medium can only improve the thermal conductivity of composite materials, and excessive addition of heat conduction medium will reduce the heat storage density of composite phase change materials. Reducing the heat storage performance of composite phase change materials

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation and application of hollow tubular conductive polymer composite fiber aerogel material
  • Preparation and application of hollow tubular conductive polymer composite fiber aerogel material
  • Preparation and application of hollow tubular conductive polymer composite fiber aerogel material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Soak the kapok fiber in a sodium hydroxide solution with a mass concentration of 1 wt%, and treat it at 20°C for 10 minutes to remove the lipid on the fiber surface, then wash it with ethanol and water, and dry it to obtain a hydrophilic kapok fiber.

[0028] Step 2: Take a certain amount of hydrophilic kapok fiber and add it to the water to disperse evenly, then add a certain amount of pyrrole monomer and ferric chloride to the solution, and fully mix and react for 0.5h at -10°C to make the pyrrole monomer in the kapok The fibers are oxidized and polymerized on the inner and outer tube walls, and filtered to obtain polypyrrole-coated modified kapok fibers after the reaction.

[0029] Step 3: The kapok fiber modified by the polypyrrole coating obtained in the above steps is fully mixed with water according to a mass ratio of 1:5 to form a uniform mixed solution, and liquid nitrogen is used to quickly freeze the mixed solution, and the frozen sample is Freeze-dry...

Embodiment 2

[0033] Step 1: Soak the kapok fibers in a sodium hydroxide solution with a mass concentration of 3wt%, and treat them at 60°C for 30 minutes to remove the lipids on the fiber surface, then wash them with ethanol and water, and dry them to obtain hydrophilic kapok fibers.

[0034] Step 2: Take a certain amount of hydrophilic kapok fiber and add it to the water to disperse evenly, then add a certain amount of pyrrole monomer and ammonium persulfate to the solution, and fully mix and react at 10°C for 2 hours to make the pyrrole monomer inside and outside the kapok fiber Oxidative polymerization on the tube wall, and filtration after the reaction to obtain polypyrrole-coated modified kapok fibers.

[0035] Step 3: The kapok fiber modified by the polypyrrole coating obtained in the above steps is fully mixed with water according to the mass ratio of 1:10 to form a uniform mixed solution, and the mixed solution is quickly frozen with liquid nitrogen, and the frozen sample is Freeze...

Embodiment 3

[0039] Step 1: Soak the kapok fiber in a sodium hydroxide solution with a mass concentration of 5 wt%, and treat it at 80°C for 60 minutes to remove the lipid on the fiber surface, then wash it with ethanol and water, and dry it to obtain a hydrophilic kapok fiber.

[0040]Step 2: Take a certain amount of hydrophilic kapok fiber and add it to the water to disperse evenly, then add a certain amount of aniline monomer and iron sulfate to the solution, and fully mix and react at 60°C for 6 hours so that the aniline monomer is in the inner and outer tubes of the kapok fiber The wall is oxidized and polymerized, and after the reaction is completed, the polyaniline-coated modified kapok fiber is obtained by filtration.

[0041] Step 3: The kapok fiber modified by the polyaniline coating obtained in the above steps is fully mixed with water according to a mass ratio of 1:20 to form a uniform mixed solution, and liquid nitrogen is used to quickly freeze the mixed solution, and the froz...

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

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method of a hollow tubular conductive polymer composite fiber aerogel, and belongs to the field of novel composite materials. According to the method, a conductive polymer is subjected to in-situ polymerization on the inner wall and the outer wall of natural kapok fiber to form a conductive polymer coating, then a hollow tubular conductive polymer composite fiber aerogel is formed through reassembly, and the aerogel is combined with an organic phase change material to obtain the composite phase change material. According to the invention, the preparation process of the conductive polymer composite fiber aerogel is simple, the raw materials are natural hollow fibers which are cheap and easy to obtain, and environment friendliness is achieved; the prepared hollow tubular conductive polymer composite fiber aerogel is low in density and high in porosity; and the aerogel composite phase-change material has the advantages of no leakage, high latent heatof phase change, high thermal conductivity and good thermal cycle stability, and lays a foundation for the application of the aerogel composite phase-change material in the fields of energy storage, electrodes, catalysis and the like.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a preparation method of a hollow tubular conductive polymer composite fiber airgel and an energy storage application thereof. Background technique [0002] As a material with high heat storage density, stable chemical properties, non-toxic and non-corrosive materials, organic phase change materials are widely used in the field of phase change energy storage. Common organic phase change materials include paraffins, alkanes, unsaturated alcohols and fatty acids, etc. However, organic phase change materials are prone to leakage during the solid-liquid phase transition process, which reduces the reusability of materials. In addition, organic phase change materials generally have the defect of poor thermal conductivity and low thermal conductivity. [0003] At present, the combination of porous network structure materials and organic phase change materials i...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCC09K5/063
Inventor 杨穆王戈陶璋伍玲梅闫加民
Owner UNIV OF SCI & TECH BEIJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap