A kind of ethylene-vinyl acetate copolymer/polypyrrole composite conductive material and preparation method thereof

A technology of vinyl acetate and composite conduction, which is applied in the field of composite conductive materials, can solve the problems of weak combination and low conductivity of composite materials, and achieve the effects of easy realization of preparation process conditions, excellent conductivity, and increased specific surface area

Inactive Publication Date: 2016-09-28
HENAN UNIV OF URBAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to provide a kind of ethylene-vinyl acetate copolymer / polypyrrole composite conductive material and its preparation method, which can overcome the defects of low electrical conductivity of the material obtained by the current preparation method or weak combination of the composite material

Method used

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  • A kind of ethylene-vinyl acetate copolymer/polypyrrole composite conductive material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] After mixing 700 grams of EVA and 300 grams of PEO, melt and granulate through a twin-screw extruder at a temperature of 160° C., and the speed of the twin-screw extruder is 100 rpm to obtain EVA / PEO blended pellets. Put the EVA / PEO pellets into the mold, hot press in a flat bed for 30 minutes, the molding temperature is 150°C, and the pressure is 15MPa to obtain the EVA / PEO blend film. The blended membrane was placed in water at 30° C., and the PEO was dissolved at a constant temperature for 4 hours to obtain a porous EVA membrane.

[0029] 15 grams of EVA porous membranes are added to 500 parts by weight of 0.1mol / L pyrrole aqueous solution, and after stirring for 0.5 hours, 100 grams of 0.1mol / L iron sesquioxide aqueous solution is added dropwise to the reaction solution, and the dropping time is 0.5 hours After the dropwise addition, continue to react for 0.5 hours to complete the reaction. During the whole process, the temperature of the reaction system is maintain...

Embodiment 2

[0031] After mixing 600 grams of EVA and 400 grams of PEO, melt and granulate through a twin-screw extruder at a temperature of 150° C., and the speed of the twin-screw extruder is 200 rpm to obtain EVA / PEO blended pellets. Put the EVA / PEO pellets into the mold, hot press in a flat bed for 20 minutes, the molding temperature is 140°C, and the pressure is 15MPa to obtain the EVA / PEO blend film. The blended membrane was placed in water at 60° C., and the PEO was dissolved at a constant temperature for 2 hours to obtain a porous EVA membrane.

[0032] 20 grams of EVA porous membranes are added to 500 parts by weight of 0.5mol / L pyrrole aqueous solution, and after stirring for 0.5 hours, 250 grams of 0.7mol / L iron sesquioxide aqueous solution is added dropwise to the reaction solution, and the dropping time is 0.5 hours After the dropwise addition, the reaction was continued for 4 hours to complete the reaction. During the whole process, the temperature of the reaction system was ...

Embodiment 3

[0034] After mixing 700 grams of EVA and 300 grams of PEO, melt and granulate through a twin-screw extruder at a temperature of 160° C., and the speed of the twin-screw extruder is 300 rpm to obtain EVA / PEO blended pellets. Put the EVA / PEO pellets into the mold, hot press in a flat bed for 30 minutes, the molding temperature is 150°C, and the pressure is 15MPa to obtain the EVA / PEO blend film. The blended membrane was placed in water at 80° C., and the PEO was dissolved at a constant temperature for 1 hour to obtain a porous EVA membrane.

[0035] 15 grams of EVA porous membranes are added to 500 parts by weight of 0.7mol / L pyrrole aqueous solution, and after stirring for 0.5 hours, 300 grams of 1.0mol / L iron sesquioxide aqueous solution is added dropwise to the reaction solution, and the dropping time is 0.5 hours After the dropwise addition, the reaction was continued for 3 hours to complete the reaction. During the whole process, the temperature of the reaction system was m...

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Abstract

The invention belongs to the technical field of a composite conductive material, and particularly relates to an ethylene-vinyl acetate copolymer / polypyrrole composite conductive material and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing an EVA porous membrane, and then polymerizing a pyrrole monomer in the EVA porous membrane to obtain a PPy / EVA composite conductive material. According to the method, the adsorption problem of an EVA substrate on conductive polypyrrole can be thoroughly solved, and the method has the advantages that the preparation technological conditions are easily realized, the cost is saved, the conductive performance is excellent, and the like.

Description

technical field [0001] The invention belongs to the technical field of composite conductive materials, and in particular relates to an ethylene-vinyl acetate copolymer / polypyrrole composite conductive material and a preparation method thereof. Background technique [0002] Since American scientists A.J.Heeger and A.G.MacDiarmid and Japanese scientist H.Shirakawa discovered that doped polyacetylene (PA) has metal conductive properties in 1977, the concept that organic polymers cannot be used as conductive materials has been completely changed, and a new technology was born. A new interdisciplinary subject-conductive polymer. After the discovery of conductive polyacetylene, a series of conjugated polymers such as polyparaphenylene, polypyrrole, and polypyrrole have been doped to have high conductivity. The study of conductive polymer materials not only has theoretical academic value, but also has high application value. [0003] Polypyrrole (PPy) is an important conductive p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L79/04C08G73/06C08J9/26C08J5/18
CPCC08G73/0611C08J5/18C08J9/26C08J2201/0422C08J2323/08C08J2479/04C08L23/0853C08L79/04
Inventor 赵金安赵振新胡继勇张启陈树芳张军帅
Owner HENAN UNIV OF URBAN CONSTR
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