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Composite graphene anticorrosive coating as well as preparation method and application thereof

A technology of composite graphene and anti-corrosion coatings, applied in anti-corrosion coatings, asphalt coatings, epoxy resin coatings, etc., can solve problems such as epoxy coal tar shedding, affecting the structural stability of protected materials, and expanding the corrosion area. Corrosion resistance, overcoming poor mechanical properties, and improving mechanical properties

Inactive Publication Date: 2021-01-29
ZHENGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the cracks are formed, the corrosion centered on the cracks will easily lead to the peeling off of epoxy coal tar pitch, and gradually expand the corrosion area, thereby affecting the structural stability of the protected material under severe corrosive environment conditions

Method used

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  • Composite graphene anticorrosive coating as well as preparation method and application thereof
  • Composite graphene anticorrosive coating as well as preparation method and application thereof
  • Composite graphene anticorrosive coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method for composite graphene anticorrosion coating, comprises the steps:

[0035] (1) Weighing:

[0036] Weigh each raw material according to the following parts by weight: 1 part of graphene oxide; 60 parts of bisphenol A; 13 parts of epichlorohydrin; Leak green 36 parts; 28 parts of styrene-butadiene-styrene block copolymers; 8 parts of anionic surfactants; 20 parts of emulsifiers, for subsequent use;

[0037] (2) Preparation of graphene modified epoxy resin:

[0038] After ultrasonically dispersing graphene oxide in ethanol solvent, add bisphenol A and epichlorohydrin, then add initiator benzyltrimethylammonium chloride, react at 50°C for 24h, and obtain graphene oxide modified ring oxygen resin;

[0039] The ratio of the amount of the initiator to the epichlorohydrin is 0.8:1;

[0040] (3) preparation of composite graphene anticorrosion coating:

[0041] Add emulsifier to the completely melted asphalt, then when cooling to 90°C, add styrene-bu...

Embodiment 2

[0043] A preparation method for composite graphene anticorrosion coating, comprises the steps:

[0044] (1) Weighing:

[0045] Weigh each raw material according to the following parts by weight: 1.5 parts of graphene oxide; 70 parts of bisphenol A; 18 parts of epichlorohydrin; asphalt 30 parts; 20 parts of styrene-butadiene-styrene block copolymers; 6 parts of anionic surfactants; 18 parts of emulsifiers, for subsequent use;

[0046] (2) Preparation of graphene modified epoxy resin:

[0047]After ultrasonically dispersing graphene oxide in propanol, add bisphenol A and epichlorohydrin, then add an initiator to it, and react at 60°C for 20 hours to obtain a graphene oxide modified epoxy resin;

[0048] The ratio of the amount of the initiator to the epichlorohydrin is 0.9:1;

[0049] (3) preparation of composite graphene anticorrosion coating:

[0050] Add emulsifier to the completely melted asphalt, then when cooling to 95°C, add styrene-butadiene-styrene block copolymer,...

Embodiment 3

[0052] A preparation method for composite graphene anticorrosion coating, comprises the steps:

[0053] (1) Weighing:

[0054] Weigh each raw material according to the following parts by weight: 2 parts of graphene oxide; 80 parts of bisphenol A; 21 parts of epichlorohydrin; Leak green 25 parts; 10 parts of styrene-butadiene-styrene block copolymers; 4 parts of anionic surfactants; 15 parts of emulsifiers, for subsequent use;

[0055] (2) Preparation of graphene modified epoxy resin:

[0056] After ultrasonically dispersing graphene oxide in butylene glycol, add bisphenol A and epichlorohydrin, then add an initiator to it, and react at 65°C for 18 hours to obtain a graphene oxide-modified epoxy resin;

[0057] The ratio of the amount of the initiator to the epichlorohydrin is 1.0:1;

[0058] (3) preparation of composite graphene anticorrosion coating:

[0059] Add emulsifier to completely melted asphalt, then when cooling to 100°C, add styrene-butadiene-styrene block co...

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Abstract

The invention relates to the field of polymer material science, in particular to a composite graphene anticorrosive coating and a preparation method and an application thereof. The coating comprise the following components in parts by mass: 1-2 parts of graphene oxide; 60-80 parts of bisphenol A; 13-21 parts of epoxy chloropropane; 25-36 parts of asphalt; 10-28 parts of a styrene butadiene styreneblock copolymer; 4-8 parts of an anionic surfactant; 15-20 parts of an emulsifier and 38-46 parts of chlorosulfonated polyethylene rubber. The graphene and the epoxy coal pitch paint are compounded to obtain the composite graphene anticorrosive paint, and the composite graphene anticorrosive paint enhances the mechanical properties of the epoxy coal pitch and enhances the aging resistance of theepoxy coal pitch.

Description

technical field [0001] The invention relates to the field of polymer material science, in particular to a composite graphene anticorrosion coating and its preparation method and application. Background technique [0002] epoxy coal tar pitch The paint is based on the traditional epoxy coal tar pitch paint, adding the long-life chlorosulfonated polyethylene rubber recognized at home and abroad, and modifying the traditional epoxy coal tar pitch through the chlorosulfonated polyethylene rubber rubber with excellent anti-corrosion properties. After curing, an interpenetrating network structure between epoxy resin chains and rubber chains is formed, which has the technical advantages of low water absorption, good water resistance, microbial erosion resistance and penetration resistance. Then continue to add micaceous iron oxide, other corrosion-resistant pigments and fillers, special additives and active solvents, etc., and prepare a two-component long-term heavy-duty anti-corr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D195/00C09D153/02C09D123/34C09D5/08
CPCC08L2201/08C08L2203/18C08L2205/03C08L2205/035C09D5/08C09D163/00C08L95/00C08L53/02C08L23/34C08K3/042
Inventor 霍丽孟砥蒋文辉陈婧羽赵仪张凯
Owner ZHENGZHOU INST OF TECH
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