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A self-layering epoxy paint

An epoxy paint and self-layering technology, applied in the field of epoxy paint, can solve problems such as short service life, long time, and affecting the quality of composite coatings, reduce production costs, facilitate industrial production and application, and solve interlayer adhesion. The effect of focusing on the problem

Inactive Publication Date: 2016-09-28
GREAT COATING SCI TECH NINGBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in actual use, most single-layer coatings cannot achieve a good protective effect, and usually several types of coatings are required to be used together to meet the needs
Each layer of coating needs to be applied separately, with many procedures, long time and high cost, and the adhesion between the two layers is poor, and the service life is short, which seriously affects the quality of the composite coating.

Method used

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  • A self-layering epoxy paint
  • A self-layering epoxy paint
  • A self-layering epoxy paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Vinyl ester epoxy resin was distilled under reduced pressure at 100°C for 2 hours to remove water in the epoxy resin. Add vinyl ester epoxy resin (10g) and 1H, 1H, 2H-perfluoro-1-dodecene (10g) that have been dehydrated in a three-necked flask equipped with a thermometer, a reflux device, and nitrogen protection, and add Azobisisobutyronitrile (AIBN) (0.1 g) was reacted at 75°C for 4 hours. Use the solvent N, N dimethylacetamide halfway to adjust the viscosity of the system, and add 0.05g AIBN twice. The result is an epoxy resin with fluorocarbon side chains. The vinyl ester epoxy resin is methacrylic acid vinyl ester resin, purchased from Wuxi Jiunai Anticorrosion Material Co., Ltd.; the 1H, 1H, 2H-perfluoro-1-dodecene was purchased from Aladdin Reagent; the azobisisobutyronitrile (AIBN) was purchased from Aladdin reagent.

Embodiment 2

[0039] Vinyl ester epoxy resin was distilled under reduced pressure at 100°C for 2 hours to remove water in the epoxy resin. Add vinyl ester epoxy resin (10g) and 1H, 1H, 2H-perfluoro-1-decene (9g) that have been dehydrated in a three-necked flask equipped with a thermometer, a reflux device, and nitrogen protection, and add azo Diisobutyronitrile (AIBN) (0.08g) was reacted at 80°C for 4 hours. The viscosity of the system was adjusted with the solvent dioxane in the middle, and 0.03 g of AIBN was added twice. The result is an epoxy resin with fluorocarbon side chains. The vinyl ester epoxy resin is an acrylic vinyl ester resin, which is purchased from Wuxi Guangming Chemical Co., Ltd.; the 1H, 1H, 2H-perfluoro-1-decene is purchased from Aladdin reagent; the Azobisisobutyronitrile (AIBN) was purchased from Aladdin reagents.

Embodiment 3

[0041]Vinyl ester epoxy resin was distilled under reduced pressure at 100°C for 2 hours to remove water in the epoxy resin. Add vinyl ester epoxy resin (10g) and 11-dodecenoic acid (5g) that have been dehydrated in a three-necked flask equipped with a thermometer, a reflux device, and nitrogen protection, and add azobisisobutyronitrile (AIBN) (0.05 g), react at 70°C for 5 hours. The viscosity of the system was adjusted with the solvent xylene halfway, and 0.02 g of AIBN was added in two steps. The result is an epoxy resin with carboxylic acid side chains. The vinyl ester epoxy resin is methacrylic acid vinyl ester resin, which is purchased from Wuxi Jiunai Anticorrosion Material Co., Ltd.; the 11-dodecenoic acid is purchased from Aladdin reagent; the azobis Isobutyronitrile (AIBN) was purchased from Aladdin reagents.

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Abstract

The invention relates to self-layered epoxy paint which is characterized by comprising the following components in parts by weight: 20-30 parts of glass flake modified by a silane coupling agent with amino, 10-20 parts of epoxy resin of a fluorocarbon side chain, 10-20 parts of epoxy resin of a carboxylic acid side chain, 10-20 parts of bisphenol A epoxy resin, 15-25 parts of an isocyanate curing agent and 1-15 parts of other auxiliaries. Compared with the prior art, the self-layered epoxy paint has the advantages that the epoxy paint obtained by the invention can spontaneously form a three-layer film structure only through one-time construction, different characteristics are displayed on each layer, the production cost is reduced, the problem of inter-layer adhesion of a multilayer coating system is solved, and great convenience is brought to industrial production and application.

Description

technical field [0001] The invention relates to a paint material, in particular to an epoxy paint. It can be used on the surface of metal equipment to play an anti-corrosion effect. Background technique [0002] Due to the defects of the material itself and the influence of the natural environment on the material, metal materials are prone to corrosion. Metal corrosion will not only bring huge economic losses, but may also cause safety and environmental problems in production and construction. Among various anti-corrosion technologies, coating is one of the most commonly used protective measures due to its simplicity, convenience, low cost, and wide adaptability. [0003] At present, the anticorrosion mechanism adopted by anticorrosion coatings is different: some are based on the cathodic protection effect of active wave metal powder such as zinc powder on steel, such as application number CN201210500971.3, Chinese invention patent application publication "Cold Zinc Antico...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D175/04C09D7/12
CPCC08K3/40C08K9/06C09D7/70C09D163/00C09D175/04
Inventor 魏钢
Owner GREAT COATING SCI TECH NINGBO
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