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Nanofiber-based three-dimensional conductive network reinforced flexible transparent polymer composite material and preparation method thereof

A technology of transparent polymers and nanofibers, applied in the field of textile materials, can solve the problems of basement film microcracks, complex internal structure, cracking of conductivity, etc., and achieve the effect of good conductivity and transparency

Active Publication Date: 2019-07-23
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to avoid the problem of conductive cracking caused by microcracks in the base film, the second transparent conductive layer and the first transparent conductive layer are bonded together, not only need to use adhesives, but also have the problem of relatively complex internal composition

Method used

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  • Nanofiber-based three-dimensional conductive network reinforced flexible transparent polymer composite material and preparation method thereof
  • Nanofiber-based three-dimensional conductive network reinforced flexible transparent polymer composite material and preparation method thereof
  • Nanofiber-based three-dimensional conductive network reinforced flexible transparent polymer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Melt blending process - conductive materials are filled inside the three-dimensional network skeleton of nanofibers;

[0042] The carbon nanotubes (CNTs) with a mass fraction of 5% were blended with polypropylene copolymer (PP), and the CNTs / PP composite masterbatch was prepared after melt blending, extrusion and granulation. Then CNTs / PP was blended with cellulose acetate butyrate (CAB), and CNTs / PP / CAB composite fibers were prepared by melt blending spinning method. After the composite fiber was soaked in acetone to remove CAB, the CNTs / PP conductive nanofiber was prepared, and the CNTs were filled inside the nanofiber. The CNTs / PP conductive nanofibers were dispersed in a blend solvent of ethanol, propanol, and deionized water, and the CNTs / PP conductive nanofiber film was prepared by the coating method. During this process, the CNTs formed a conductive network with the help of a three-dimensional network of nanofibers. The conductive nanofiber membrane is immersed ...

Embodiment 2

[0044] Electrospinning process—conductive materials are filled inside the three-dimensional network skeleton of nanofibers;

[0045] Weighed 2% graphene and added it to formic acid, treated it ultrasonically for 2 hours, then added nylon 6 with a mass fraction of 20% to the above dispersion, and dissolved it fully by magnetic stirring to obtain GO / PA6 electrospinning solution. GO / PA6 composite nanofiber membranes were prepared by electrospinning, in which GO was dispersed inside PA6 nanofibers and a conductive network was formed with the help of nanofibers. The conductive nanofiber membrane is immersed in polymethyl methacrylate (PMMA) solution, so that the solution fully fills the pores of the conductive nanofiber membrane, then taken out, and heated and cured at 80°C to obtain a nanofiber-based three-dimensional conductive network Reinforced flexible transparent polymer composites.

Embodiment 3

[0047] Deposition - Conductive materials are compounded on the surface of the nanofiber three-dimensional network skeleton;

[0048] Polyethylene terephthalate (PET) and CAB were mixed uniformly according to the ratio of 20 / 80, and PET nanofiber film was prepared by melt blending spinning method. Then cut the PET nanofiber membrane into 4×4cm square pieces, put them into 100mL 10g / L ammonium persulfate ((NH 4 ) 2 S 2 o 8 ), stannous chloride (SnCl 2, 20g / L) in hydrochloric acid solution (80mL / L), silver nitrate (AgNO 3 , 0.5g / L) ammonia water (40mL / L) solution, reacted on a shaker at 30°C for 10min respectively, and carried out roughening, sensitization and activation treatments. Then configure the silver ammonia solution. The specific method is to add 250mL deionized water and 3g silver nitrate (AgNO3) into the beaker respectively, stir until completely dissolved, and then add 50mL ammonia water (NH 3 ·H 2 O), 50mL absolute ethanol (C 2 h 5 OH), 50mL40g / L sodium hydr...

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Abstract

The invention discloses a nanofiber-based three-dimensional conductive network reinforced flexible transparent polymer composite material and a preparation method thereof, and belongs to the technicalfield of textile materials. The composite material consists of a nanofiber three-dimensional network skeleton, a conductive network composited to the interior or / and the surface of the nanofiber three-dimensional network skeleton, and a transparent polymer matrix covering the nanofiber three-dimensional network skeleton and the conductive network. The mass percentage of the components is nanofiber three-dimensional network skeleton: conductive network: transparent polymer matrix being equal to (50 to 9): (10 to 1): (90 to 40). The nanofiber is used as a template to form a three-dimensional continuous conductive channel in the transparent polymer matrix by the nano material with excellent electrical conductivity, and the conductivity of the polymer matrix is improved while improving the cof the composite material.

Description

technical field [0001] The invention relates to a composite material, which belongs to the technical field of textile materials, in particular to a nanofiber-based three-dimensional conductive network reinforced flexible transparent polymer composite material and a preparation method thereof. Background technique [0002] In recent years, in electronic devices such as various displays and mobile phones represented by liquid crystal display elements, the development of thinner, thinner and smaller is being accelerated. Following this, research on replacing the glass substrates used in the past with plastic films is being carried out. In full swing. The plastic film is not only light in weight, but also excellent in flexibility. Therefore, if a thin plastic film with a thickness of several microns can be made into a base film, and a transparent conductive layer is formed on the base film to form a transparent conductive film, the application of the transparent conductive film ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/24C08L63/00C08L23/12C08L33/12C08L77/02C08K3/04
CPCC08J5/24C08J2363/00C08J2423/12C08J2333/12C08J2477/02C08K3/041C08K3/042
Inventor 李沐芳王栋昌康琪赵旭王文向晨雪钟卫兵
Owner WUHAN TEXTILE UNIV
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