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Corrosion-resistant nano-graphene color-coated board

A nano-graphene and color-coated board technology, applied in the field of materials, can solve problems such as graphene agglomeration and corrosion resistance, and achieve the effects of high bonding strength, improved light extraction rate, and simplified structure

Active Publication Date: 2020-09-15
SUZHOU YANGTZE NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong interaction between graphene sheets, when graphene is directly added to the resin, graphene is very prone to agglomeration, and even more micropores are generated, and the corrosion resistance is seriously affected.

Method used

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  • Corrosion-resistant nano-graphene color-coated board

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The invention provides a corrosion-resistant nano-graphene color-coated plate, which comprises a top coat, an undercoat, a reflective layer, an adhesive layer, a first corrosion-resistant layer, a substrate, a second corrosion-resistant layer and a back layer that are sequentially stacked. coating.

[0038] Wherein, the substrate is a cold-rolled steel plate with a thickness of 0.3 mm.

[0039] The first corrosion-resistant layer comprises 50 parts by weight of bisphenol A type epoxy resin, 7 parts by weight of nano-graphene, 4 parts by weight of talcum powder, 4 parts by weight of wax powder, 18 parts by weight of titanium dioxide, and 2 parts by weight of the first antioxidant, 3 parts by weight of dispersant, 0.5 parts by weight of light rare earth element;

[0040] The bisphenol A type epoxy resin is E12 type, the first antioxidant is dialkyl dithiophosphate calcium salt, and the light rare earth element is neodymium.

[0041] The thickness of the first anti-corro...

Embodiment 2

[0060] The invention provides a corrosion-resistant nano-graphene color-coated plate, which comprises a top coat, an undercoat, a reflective layer, an adhesive layer, a first corrosion-resistant layer, a substrate, a second corrosion-resistant layer and a back layer that are sequentially stacked. coating.

[0061] Wherein, the substrate is a cold-rolled steel plate with a thickness of 0.5 mm.

[0062] The first anti-corrosion layer comprises 55 parts by weight of bisphenol A type epoxy resin, 5 parts by weight of nano graphene, 6 parts by weight of talcum powder, 3 parts by weight of wax powder, 15 parts by weight of titanium dioxide, 3 parts by weight of the first antioxidant, 4.4 parts by weight of dispersant, 0.2 parts by weight of light rare earth element;

[0063] The bisphenol A type epoxy resin is E20 type, the primary antioxidant is dialkyl dithiophosphate calcium salt, and the light rare earth element is cerium.

[0064] The thickness of the first anti-corrosion lay...

Embodiment 3

[0079] The invention provides a corrosion-resistant nano-graphene color-coated plate, which comprises a top coat, an undercoat, a reflective layer, an adhesive layer, a first corrosion-resistant layer, a substrate, a second corrosion-resistant layer and a back layer that are sequentially stacked. coating.

[0080] Wherein, the substrate is a cold-rolled steel plate with a thickness of 0.8mm.

[0081] The first anti-corrosion layer comprises 45 parts by weight of bisphenol A type epoxy resin, 9 parts by weight of nano graphene, 2 parts by weight of talcum powder, 5 parts by weight of wax powder, 21 parts by weight of titanium dioxide, and 1 part by weight of the first antioxidant, 1.8 parts by weight of dispersant, 0.2 parts by weight of light rare earth element;

[0082] The bisphenol A type epoxy resin is E51 type, the primary antioxidant is dialkyl dithiophosphate calcium salt, and the light rare earth element is cerium.

[0083] The thickness of the first anti-corrosion l...

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Abstract

The invention belongs to the technical field of materials and particularly relates to a corrosion-resistant nano-graphene color-coated plate. The color-coated plate comprises a finishing coating, a primer coating, a first corrosion resisting layer, a substrate, a second corrosion resisting layer and a back coating which are arranged in a sequential-laminated manner, wherein the strength of graphene in the first corrosion resisting layer is matched with damage resistance of wax powder, so that the first corrosion resisting layer is high in hardness and dense in structure, intrusion of water andoxygen is effectively prevented, and the probability of corrosion of the substrate is lowered; talcum powder, the wax powder and titanium dioxide are matched with one another, so that the chemical stability of the first corrosion resisting layer is improved, and the occurrence of corrosion is reduced; methyl cellulose is matched with polyvinyl alcohol, thus, the second corrosion resisting layer is good in film forming property, the toughness is improved, and precipitated barium sulfate can be uniformly dispersed in the second corrosion resisting layer and is free of agglomeration. According to the nano-graphene color-coated plate provided by the invention, nano graphene is added into the first and second corrosion resisting layers, excellent mechanical properties, chemical stability and hydrophobicity of the graphene are fully utilized, and the global corrosion resistance of the color-coated plate is improved.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a corrosion-resistant nano-graphene color-coated plate. Background technique [0002] Color-coated steel plate is color-coated steel plate, which is based on cold-rolled steel plate or galvanized steel plate. Products made by cooling. As a new type of material with bright colors, convenient processing and low cost, color-coated sheets are widely used in construction, shipbuilding, home appliances, decoration, transportation and other industries. [0003] However, under natural conditions or working conditions, the color-coated plate will cause degradation and damage due to chemical or electrochemical interactions with the environmental medium in which it is located, that is, corrosion occurs, and its service life and functions are seriously affected, resulting in Huge economic loss and waste of resources. There are many ways to prevent the corrosion of color-coat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D175/04C09D5/08C09D7/61C09D7/65C09D7/63C09D133/12C09D149/00C09D175/08C09D147/00B32B15/18B32B15/20B32B7/12B32B33/00
CPCB32B7/12B32B15/18B32B15/20B32B33/00B32B2255/06B32B2255/20B32B2255/26B32B2255/28B32B2307/4026B32B2307/416B32B2307/714B32B2307/73C08K2003/2241C08K2003/282C08K2201/011C08K2201/014C08L2205/02C08L2205/035C09D5/08C09D7/61C09D7/63C09D7/65C09D133/12C09D149/00C09D163/00C08L91/06C08K13/02C08K3/34C08K3/22C08K3/08C08L75/04C08K3/042C08K3/28C08K5/20C08K3/36C08L49/00C08L75/08C08L47/00C08K5/18
Inventor 段满益杨建仁许曲锋周丹张林元
Owner SUZHOU YANGTZE NEW MATERIALS CO LTD
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