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Fireproof thermal insulation coating for aluminum alloy material, fireproof thermal insulation coating layer for aluminum alloy battery pack and aluminum alloy upper cover of battery pack

A technology of aluminum alloy materials and thermal insulation coatings, which is applied in fire-resistant coatings, coatings, epoxy resin coatings, etc. effect, improve hardness, improve wear resistance effect

Inactive Publication Date: 2020-05-05
郑州深澜动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the wear resistance of the coating surface is not good, it is easy to be scratched off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The fireproof and heat-insulating coating for aluminum alloy materials of the present embodiment includes the following components in parts by weight: 31 parts of film-forming agent, 5 parts of film-forming aid, 3 parts of pigment, 15 parts of filler, 3 parts of dispersant, 4 parts of Thickener, 5 parts of defoamer, 5 parts of flame retardant, 8 parts of foaming agent, 0.5 part of preservative; the filler is alumina.

[0046]The film-forming agent is water-based epoxy resin emulsion; the film-forming aid is glycerol; the pigment is titanium dioxide; the dispersant is a composition of polyacrylic acid sodium salt and polyethylene glycol, and the weight ratio of the two is 1:2; The thickener is hydroxyethyl cellulose; the defoamer is silicone defoamer, the flame retardant is tributyl phosphate and ammonium polyphosphate, and the weight ratio of the two is 1:1; the foaming agent is melamine and amino Resin, the weight ratio of the two is 3:1; the preservative is potassium ...

Embodiment 2

[0049] The fireproof and heat-insulating paint layer for the upper cover of the aluminum alloy battery pack in this embodiment includes an inner heat-insulating layer and an outer fireproof layer, and the outer fireproof layer is formed by the fireproof and heat-insulating paint in Example 1.

[0050] The inner layer is formed by an airgel thermal insulation coating, and the airgel thermal insulation coating comprises the following components in parts by weight: 50 parts of film former, 10 parts of filler, 3.5 parts of dispersant, 0.5 part of thickener, 4 parts of disinfectant Foaming agent, 5 parts of flame retardant, 3 parts of preservative; filler is nano silica airgel powder. The film-forming agent is water-based epoxy resin emulsion, the dispersant is polyacrylic acid sodium salt, the thickener is sodium carboxymethyl cellulose, the defoamer is silicone defoamer, the flame retardant is tributyl phosphate, and the preservative for sodium citrate.

Embodiment 3

[0052] The aluminum alloy upper cover of the battery pack in this embodiment includes a base body of the upper cover and a fire-proof and heat-insulating coating layer for an aluminum alloy battery pack disposed on the base body of the upper cover. The coating layer is the fire-proof and heat-insulating coating layer in Example 2. The thickness of the inner heat insulation layer is 0.2mm, the thickness of the outer fireproof layer is 0.3mm, and the thickness of the upper cover base is 0.6mm.

[0053] The preparation method of the battery pack aluminum alloy upper cover of the present embodiment comprises the following steps:

[0054] (1) Clean the surface matrix of the upper cover, remove surface particles and oil;

[0055] (2) Roll-coat the airgel heat-insulating coating on the surface of the substrate first, roll-coat it twice, and dry it at 40°C for 40 minutes to obtain a dry airgel heat-insulating coating;

[0056] (3) After the airgel heat-insulating coating is completel...

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Abstract

The invention particularly relates to a fireproof thermal insulation coating for an aluminum alloy material, a fireproof thermal insulation coating layer for an aluminum alloy battery pack and an aluminum alloy upper cover of the battery pack, and belongs to the technical field of coatings. The fireproof thermal insulation coating for the aluminum alloy material comprises the following components(by weight): 30-50 parts of a film-forming agent, 10-20 parts of a filler, 0.5-5 parts of a dispersing agent, 0.5-5 parts of a thickening agent, 0.5-5 parts of a defoaming agent, 0.5-5 parts of a flame retardant, 5-10 parts of a foaming agent and 0.5-5 parts of a preservative, wherein the filler is one or a combination of more of aluminum oxide, silicon oxide and zirconium oxide. According to thefireproof thermal insulation coating for the aluminum alloy material, an inorganic ceramic material is used as the filler, so that the wear resistance of the coating is improved. The fireproof thermalinsulation coating is used as an outer layer and an aerogel thermal insulation coating is used as an inner layer to form the fireproof thermal insulation coating layer; and the fireproof thermal insulation coating layer is coated on the aluminum alloy upper cover of a battery pack, so that the aluminum alloy upper cover can pass an external fire experiment when the thickness is less than 1.2 mm,and the lightweight advantage of the aluminum alloy is ensured.

Description

technical field [0001] The invention specifically relates to a fireproof and heat-insulating paint for aluminum alloy materials, a fireproof and heat-insulating paint layer for aluminum alloy battery packs, and an aluminum alloy upper cover for battery packs, and belongs to the technical field of paints. Background technique [0002] At present, due to the needs of environmental protection and energy saving, the lightweight of automobiles, especially new energy vehicles, has become the trend of automobile development. The weight reduction of the power battery pack is one of the effective ways to realize the weight reduction of new energy vehicles, and the weight reduction of the power battery pack shell is one of the important ways to reduce the weight of the power battery pack. At present, steel materials are mostly used as the upper shell of the battery pack for the power battery pack shell, but the density of the steel material (7.8g / cm 3 ) is too large to meet the light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D133/04C09D175/04C09D5/18C09D7/61C09D7/63
CPCC08K2003/2227C08K2003/2244C08K2003/323C08L2205/035C09D5/185C09D163/00C09D175/04C09D7/61C09D7/63C08L33/02C08L71/02C08K13/02C08K5/521C08K3/32C08K3/22C08K5/053C08K3/36C08K5/098C08L33/04C08L75/04
Inventor 郭红亮晁华鑫王汉丹张庆波杨浩李师
Owner 郑州深澜动力科技有限公司