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Preparation method of graphene/polyvinyl chloride composite material

A technology of composite materials and polyvinyl chloride, which is applied in the field of preparation of graphene/polyvinyl chloride composite materials, can solve the problems of large consumption, potential safety hazards, and non-renewability, and achieve the effects of solving cracking, low cost, and simple preparation

Inactive Publication Date: 2021-01-15
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a considerable part of traditional organic coatings contains heavy metal toxic substances such as chromate, lead and zinc, which have certain safety hazards and environmental pollution risks.

Method used

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  • Preparation method of graphene/polyvinyl chloride composite material
  • Preparation method of graphene/polyvinyl chloride composite material
  • Preparation method of graphene/polyvinyl chloride composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of preparation method of graphene / polyvinyl chloride composite material, comprises the steps:

[0037] 1. Preparation of modified graphene:

[0038] (1) Add 1.0 g of sodium nitrate (NaNO 3 ) and 46.0mL of sulfurous acid (H 2 SO 3 ) and mix well, then add 2.0g of graphene and stir evenly to obtain mixed solution A;

[0039] (2) Add 6.0 g of potassium permanganate (KMnO 4 ) and magnetically stirred for 2 hours. After the reaction, 92.0 mL of deionized water was added and rapidly heated to 98° C., kept at this temperature for 15 minutes, and then 280.0 mL (large amount) of deionized water was added to terminate the reaction;

[0040] (3) After the reaction is terminated, add 5.0 mL of hydrogen peroxide (H 2 o 2 ) and stirred evenly with a glass rod, the reaction system changed from brown-black to bright yellow, then filtered while hot, and then washed the filter residue with hydrochloric acid, then washed with deionized water until neutral, and then dried in a...

Embodiment 2

[0051] A kind of preparation method of graphene / polyvinyl chloride composite material, comprises the steps:

[0052] 1. Preparation of modified graphene:

[0053] (1) Add 1.0 g of sodium nitrate (NaNO 3 ) and 40.0mL of sulfurous acid (H 2 SO 3 ) and mix well, then add 3.0g of graphene and stir evenly to obtain mixed solution A;

[0054] (2) Add 7.5 g of potassium permanganate (KMnO 4 ) and magnetically stirred for 4 hours. After the reaction, 100.0 mL of deionized water was added and rapidly heated to 90° C., kept at this temperature for 20 minutes, and then 300.0 mL (a large amount) of deionized water was added to terminate the reaction;

[0055] (3) After the reaction is terminated, add 5.0 mL of hydrogen peroxide (H 2 o 2 ) and stirred evenly with a glass rod, the reaction system changed from brown-black to bright yellow, then filtered while hot, and then washed the filter residue with hydrochloric acid, then washed with deionized water until neutral, and then dried i...

Embodiment 3

[0066] A kind of preparation method of graphene / polyvinyl chloride composite material, comprises the steps:

[0067] 1. Preparation of modified graphene:

[0068] (1) Add 1.0 g of sodium nitrate (NaNO 3 ) and 50.0mL of sulfurous acid (H 2 SO 3 ) and mix evenly, then add 1.0g of graphene and stir evenly to obtain mixed solution A;

[0069] (2) Add 4.0 g of potassium permanganate (KMnO 4 ) and magnetically stirred for 5 hours. After the reaction, 50.0 mL of deionized water was added and rapidly heated to 95° C., kept at this temperature for 10 minutes, and then 250.0 mL (large amount) of deionized water was added to terminate the reaction;

[0070] (3) After the reaction is terminated, add 6.0 mL of hydrogen peroxide (H 2 o 2 ) and stirred evenly with a glass rod, the reaction system changed from brown-black to bright yellow, then filtered while hot, and then washed the filter residue with hydrochloric acid, then washed with deionized water until neutral, and then dried in...

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Abstract

The invention discloses a preparation method of a graphene / polyvinyl chloride composite material. The preparation method comprises the following steps of 1, preparing modified graphene, 2, preparing awater-based emulsion, 3, preparing modified polyvinyl chloride resin, and 4, preparing the graphene / polyvinyl chloride composite material. The method disclosed by the invention is low in cost, simpleto prepare and easy for industrial batch production, solves the problem that the traditional waterproof material is easy to crack, and utilizes the graphene to be uniformly dispersed in the polyvinylchloride resin to prepare the waterproof corrosion-resistant composite material under the synergistic effect of the graphene and the polyvinyl chloride resin.

Description

technical field [0001] The invention relates to the field of composite material preparation, in particular to a preparation method of graphene / polyvinyl chloride composite material. Background technique [0002] Problems such as bridge collapse, shipwreck and factory equipment damage caused by metal corrosion have brought huge losses to people's daily life. Although people cannot avoid the occurrence of metal corrosion, it is possible to study the mechanism of metal corrosion and find effective means to protect metals, so as to delay the rate of metal corrosion and reduce the harm caused by corrosion. Graphene is a two-dimensional carbon nanomaterial with a special lamellar structure. It has good stability and barrier properties to water, oxygen and ions. It can be used as a filler such as scaly mica powder, aluminum powder, and glass flakes. In anti-corrosion coatings, it acts as a physical barrier to prevent the penetration of oxygen and anti-corrosion media, reducing the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L29/04C08K9/02C08K3/04C08K5/12C08K5/098C08K13/06
CPCC08L27/06C08L2201/04C08L29/04C08K9/02C08K3/042C08K5/12C08K5/098C08K13/06
Inventor 刘丹康迪迪吴苏宁郜忠茹
Owner JIANGSU UNIV OF TECH
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