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Conductive polymer composite conductive paper and preparation method thereof

A conductive polymer, composite conductive technology, applied in the field of papermaking, can solve the problems of uneven distribution, difficult to fold, uneven shape and size, and achieve the effect of stable working environment, good air permeability, and solving unstable fixation.

Active Publication Date: 2020-09-25
JIANGSU AOSHEN HI TECH MATERIALS CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the present invention uses acid corrosion-resistant pulp and an improved step-by-step in-situ polymerization method to uniformly grow conductive polymer polyaniline on the substrate to prepare a carbon fiber composite material with good electrical conductivity. The phenomenon of uneven shape and size, agglomeration, and uneven distribution occurs; on the other hand, it solves the problem that the conductive material prepared by the mold pressing method has strong rigidity and is not easy to fold, and effectively improves the conductivity and stability of carbon fiber paper.

Method used

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  • Conductive polymer composite conductive paper and preparation method thereof
  • Conductive polymer composite conductive paper and preparation method thereof
  • Conductive polymer composite conductive paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The preparation steps of a conductive polymer composite conductive paper are as follows:

[0056] (1) Pretreatment of aramid pulp 1414: prepare an aqueous solution of dopamine with a concentration of 1.2g / L, then add 2g / L (3-hydroxy)aminomethane as an initiator, and then disperse aramid pulp 1414 in the aqueous solution of dopamine , stirring at a medium speed (500rpm) at room temperature for 12 hours to obtain aramid fiber 1414 pulp coated with polydopamine on the surface, which was dried and stored for later use;

[0057] (2) Carbon fiber pretreatment: burn the carbon fiber in a muffle furnace at 450°C for 0.5h, and then soak it in 10% sodium hydroxide solution for 2 hours to obtain pretreated carbon fiber;

[0058] (3) The weight of the preset carbon fiber paper substrate is 60g / cm 2 , according to the ratio (the ratio of carbon fiber and aramid pulp 1414 is 2:8), weigh the pretreated carbon fiber and aramid pulp, disperse evenly, and make paper through a paper shee...

Embodiment 2

[0062] Embodiment 2: adjust the concentration of initiator ammonium persulfate

[0063] The concentration of ammonium persulfate in Example 1 was adjusted to 0.187, 0.75, and 1.5 mol / L, and other parameters were kept unchanged to obtain polyaniline-distributed, highly conductive composite carbon fiber paper.

Embodiment 3

[0064] Embodiment 3: adjust the molar mass ratio of aniline and hydrochloric acid

[0065] Adjust the molar mass ratio of aniline to hydrochloric acid in Example 1 to 1:1, 3:1, 4:1, and keep other parameters unchanged, to obtain a polyaniline-distributed, highly conductive composite carbon fiber paper.

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Abstract

The invention discloses conductive polymer composite conductive paper and a preparation method thereof, and belongs to the technical field of papermaking. The preparation method of the conductive polymer composite conductive paper comprises the following steps of: (1) preparing an initiator solution, dipping a carbon fiber paper substrate into the initiator solution, and drying after adsorption saturation to obtain a carbon fiber paper substrate containing an initiator; (2) preparing an aniline monomer / dopant solution, dipping the carbon fiber paper substrate containing the initiator into theaniline monomer / dopant solution for 1 minute, and taking out; then putting the substrate into an ice-water bath, and carrying out cold air drying to obtain a polyaniline-carbon fiber paper-based composite material; and (3) repeating the steps (1)-(2) to obtain the high-conductivity composite carbon fiber paper with uniformly distributed polyaniline. According to the preparation method, polyanilineis uniformly grown on a substrate by adopting an improved step-by-step in-situ polymerization method, and an effective, simple and feasible method is provided for uniform growth of polyaniline on a substrate material.

Description

technical field [0001] The invention relates to conductive polymer composite conductive paper and a preparation method thereof, belonging to the technical field of papermaking. Background technique [0002] Carbon fiber is a new type of non-metallic carbon material with a carbon content of more than 90%. Carbon fiber products mainly include high-strength PNA-based carbon fiber and high-elastic pitch-based carbon fiber. The quality of carbon fiber is light, and its density value is large (1.5-2.0g / cm 3 ) is only 1 / 2 of that of aluminum alloy; carbon fiber has excellent mechanical properties, large specific surface area, chemical corrosion resistance, high strength and high modulus, strong electrical conductivity, strong adsorption capacity, small thermal expansion coefficient, excellent thermal stability and a series of excellent properties And characteristics, when the carbon fiber is in an inert atmosphere, its strength will not decrease when the temperature rises to 2000 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H23/22D21H25/06
CPCD21H27/00D21H23/22D21H25/06
Inventor 王士华令旭霞龙柱胡爱林李志强郭帅李广斌
Owner JIANGSU AOSHEN HI TECH MATERIALS CO LTD