Ultrahigh-solid-content and high-durability environment-friendly low-surface-treatment epoxy high-build coating and preparation method thereof

Active Publication Date: 2021-11-23
JIANGSU WATER CONSERVANCY SCI RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Solvent-based coatings contain a large amount of volatile organic solvents, and their pollution hazards are as follows: (1) Toxic solvents volatilize into the atmosphere, causing primary pollution to the atmosphere
(2) Toxic substances such as ozone and nitrogen oxides produced by the photochemical reaction of volatile organic solvents are the main cause of atmospheric smog in recent years, causing secondary pollution to the atmosphere. According to statistics, the VOC released into the atmosphere by paint every year Up to millions of tons, both polluting the environment and wasting resources
However, the VOC content of the coating should be further reduced to meet the stricter environmental protection limit index requirements

Method used

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  • Ultrahigh-solid-content and high-durability environment-friendly low-surface-treatment epoxy high-build coating and preparation method thereof
  • Ultrahigh-solid-content and high-durability environment-friendly low-surface-treatment epoxy high-build coating and preparation method thereof
  • Ultrahigh-solid-content and high-durability environment-friendly low-surface-treatment epoxy high-build coating and preparation method thereof

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Embodiment Construction

[0024] 1. Preparation process:

[0025] 1. Raw material weighing:

[0026] The following 16 kinds of component A raw materials, the total amount is: 2.758kg, the specific weighing is:

[0027] 1) Medium viscosity epoxy resin 6101: 0.9kg.

[0028] 2) Low-viscosity epoxy resin: 0.1kg; this example uses the epoxy resin of model 0164 sold by Nantong Xingchen Synthetic Materials Co., Ltd.

[0029] 3) Unsaturated polyester resin: 0.1 kg; this example uses unsaturated polyester resin of model 304 sold by Shanghai Xinhua Resin Factory.

[0030] 4) Acetone: 0.1 kg.

[0031] 5) Ethanol: 0.1kg.

[0032] 6) Modified zinc phosphate: 0.2kg; this example uses the modified zinc phosphate of model 106 distributed by Shanghai Nubilai Pigment International Trade Co., Ltd., which is a non-toxic anti-rust pigment.

[0033] Zinc phosphate from Kaibai, Germany can also be used.

[0034] 7) Aluminum silver paste: 0.15 kg.

[0035] 8) Iron red: 0.1 kg.

[0036] 9) Mica iron oxide (red): 0.4 kg...

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Abstract

The invention discloses an ultrahigh-solid-content and high-durability environment-friendly low-surface-treatment epoxy high-build coating and a preparation method thereof, and relates to the technical field of metal surface anti-corrosion treatment. The preparation method comprises the following steps of: well stirring medium-viscosity epoxy resin, low-viscosity epoxy resin, unsaturated polyester resin, acetone, ethanol, modified zinc phosphate, iron oxide red, aluminum paste, mica iron oxide, filler, an adhesion promoter, a high-efficiency dispersant and other auxiliaries in a stirrer, adjusting the viscosity, and mixing a curing agent before construction. The low-surface-treatment coating prepared by the invention is convenient to construct, realizes green application and green use of the green coating, and is suitable for anti-corrosion maintenance of various steel structures and new steel structures.

Description

technical field [0001] The invention relates to the technical field of metal surface anticorrosion treatment, in particular to the technology of solvent-based low surface treatment environmental protection paint. Background technique [0002] The current mainstream products of anti-corrosion coatings are solvent-based coatings. Solvent-based coatings contain a large amount of volatile organic solvents, and their pollution is harmful in the following two aspects: (1) Toxic solvents volatilize into the atmosphere, causing primary pollution to the atmosphere. (2) Toxic substances such as ozone and nitrogen oxides produced by the photochemical reaction of volatile organic solvents are the main cause of atmospheric smog in recent years, causing secondary pollution to the atmosphere. According to statistics, the VOC released into the atmosphere by paint every year Up to millions of tons, both polluting the environment and wasting resources. Therefore, it is one of the developmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D167/06C09D5/10C09D7/61C09D7/20C09D7/62
CPCC09D163/00C09D5/103C09D7/61C09D7/20C09D7/62C08K2003/328C08K2003/0812C08K2003/2272C08L63/00C08L67/06C08K13/06C08K3/32C08K3/34C08K3/22C08K3/08C08K3/346
Inventor 许志敏蔡一平李进东王小勇许旭东陈艳丽王康田晓梅
Owner JIANGSU WATER CONSERVANCY SCI RES INST
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