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Nitrogen-doped graphene/PVC composite waterproof coiled material and preparation method thereof

A nitrogen-doped graphene and waterproofing membrane technology, applied in the field of PVC composite materials, can solve the problems of high polymer requirements, destroying graphene structure, reducing the performance of composite materials, etc., to eliminate agglomeration, improve dispersion uniformity, reduce the effect of reunion

Inactive Publication Date: 2019-02-01
SICHUAN SHUYANG WATERPROOF MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these three methods have their own defects, such as the destruction of the structure of graphene and high requirements for polymers, especially the agglomeration of graphene in the polymer matrix, which reduces the performance of composite materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of nitrogen-doped graphene

[0038] Add the amine group-containing organic small molecule ethylenediamine to the graphene oxide solution and stir evenly, the mass ratio of the amine group-containing organic small molecule to graphene oxide is 2:1, raise the temperature to 80°C, and add the auxiliary agent required for polymerization React for 10 hours, filter and dry after the reaction to obtain a nitrogen-modified graphene oxide powder precursor;

[0039] The obtained powder precursor is placed in an inert atmosphere and heated to 800° C. for calcination and kept for 2 hours to obtain nitrogen-doped graphene powder;

[0040] (2) Solid phase shear milling

[0041] Weigh each material according to the weight ratio of the following materials:

[0042] 80 parts of polyvinyl chloride resin pellets, 15 parts of nitrogen-doped graphene powder, 15 parts of light calcium carbonate filler, 15 parts of epoxy soybean oil, 2 parts of heat stabilizer liquid calcium...

Embodiment 2

[0048] (1) Preparation of nitrogen-doped graphene

[0049] Add the amine group-containing organic small molecule ethylenediamine to the graphene oxide solution and stir evenly, the mass ratio of the amine group-containing organic small molecule to graphene oxide is 6:1, heat up to 50°C, and add the auxiliary agent required for polymerization React for 24 hours, filter and dry after the reaction to obtain a nitrogen-modified graphene oxide powder precursor;

[0050] The obtained powder precursor is placed in an inert atmosphere and heated to 600° C. for calcination and kept for 5 hours to obtain nitrogen-doped graphene powder;

[0051] (2) Solid phase shear milling

[0052] Weigh each material according to the weight ratio of the following materials:

[0053] 120 parts of polyvinyl chloride resin pellets, 30 parts of nitrogen-doped graphene powder, 18 parts of light calcium carbonate filler, 25 parts of epoxy soybean oil, 1 part of heat stabilizer liquid calcium zinc stabiliz...

Embodiment 3

[0059] (1) Preparation of nitrogen-doped graphene

[0060] Add amine group-containing organic small molecule melamine to the graphene oxide solution and stir evenly. The mass ratio of amine group-containing organic small molecule to graphene oxide is 5:1, heat up to 80°C, add the auxiliary agent required for polymerization and react for 10h After the reaction, filter and dry to obtain the nitrogen-modified graphene oxide powder precursor;

[0061] The obtained powder precursor is placed in an inert atmosphere and heated to 800° C. for calcination and kept for 2 hours to obtain nitrogen-doped graphene powder;

[0062] (2) Solid phase shear milling

[0063] Weigh each material according to the weight ratio of the following materials:

[0064] 100 parts of polyvinyl chloride resin pellets, 35 parts of nitrogen-doped graphene powder, 20 parts of light calcium carbonate filler, 10 parts of epoxy soybean oil, 2 parts of heat stabilizer liquid calcium zinc stabilizer, the density o...

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Abstract

The present invention provides a nitrogen-doped graphene / PVC composite material and a preparation method thereof. By improving the preparation method of graphene, the graphene is subjected to multi-component doping to introduce functional group-modified graphene, van der Waals force between the graphene sheets is weakened, graphene agglomeration is reduced or eliminated, the dispersion degree of graphene in a PVC matrix is increased, and the interface property of the graphene / PVC composite material is improved. At the same time, the graphene / PVC composite material is prepared by improving a solid-phase shearing and milling method, and the secondary compositing of graphene and PVC is combined to improve the comprehensive performance of the composite material.

Description

technical field [0001] The invention belongs to the field of PVC composite materials, and in particular relates to a graphene / PVC composite material and a preparation method thereof. Background technique [0002] PVC resin is one of the earliest plastic varieties to realize industrial production in the world. Since PVC resin has the advantages of flame retardant, chemical corrosion resistance, wear resistance, excellent electrical insulation and high mechanical strength, various plastic products can be produced by adding additives or using appropriate processes and equipment during processing, including sheets, pipes, etc. , pipe fittings, profiles and other hard products, as well as soft products such as films, artificial leather, plastic shoes, cable materials, foam materials, etc., are widely used in industry, agriculture, construction, daily necessities, packaging and electric power. [0003] my country has become the largest PVC consumer country since 2005, and the con...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L91/06C08K13/06C08K9/00C08K9/04C08K3/04C08K3/26C08K5/098C08K5/134C08K5/526
CPCC08K2003/265C08K2201/011C08L27/06C08L91/06C08K13/06C08K9/00C08K9/04C08K3/042C08K3/26C08K5/098C08K5/1345C08K5/526
Inventor 骆晓彬
Owner SICHUAN SHUYANG WATERPROOF MATERIAL
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