Preparation method for aqueous anticorrosion coating

A water-based technology for anti-corrosion coatings, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve problems such as flash corrosion, metal corrosion, and high water conductivity, achieve good weather resistance and corrosion resistance, avoid agglomeration, The effect of increasing the crosslink density

Active Publication Date: 2015-12-30
SHENYANG SHUNFENG IND GRP CO LTD
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high conductivity of water makes it easy to corrode metals, and flash corrosion is prone to occur during the drying process of the coating film. Although the use of flash rust inhibitors and fillers can effectively solve this problem, most of the flash rust inhibitors are heavy metals. inconsistent with low-pollution goals

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method for aqueous anticorrosion coating
  • Preparation method for aqueous anticorrosion coating
  • Preparation method for aqueous anticorrosion coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Preparation of N-carboxyethyl chitosan:

[0027] Add 4.0g chitosan (molecular weight less than 50,000) into 200mL water containing 2.8mL acrylic acid, and keep stirring for 2 days at 50°C. After the reaction was completed, 1 mol / L NaOH solution was added to the reaction mixture to adjust the pH value of the solution to 10, so that all carboxylic acids were converted into sodium salts. Pour the mixed solution into acetone for reprecipitation, and then dialyze in aqueous solution (dialysis membrane cut-off molecular weight is 8000-12000 g / mol) to remove unreacted acrylic acid. After two days of dialysis, freeze-dry to obtain 3.6 g of N-carboxyethyl chitosan.

[0028] 2. Preparation of chitosan / nano zinc oxide composite material:

[0029] 3.6 g of the obtained N-carboxyethyl chitosan was added into 300 mL of deionized water, vigorously stirred at room temperature for 0.5 h, and fully dissolved to obtain a water-soluble chitosan solution. The above-mentioned water-sol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A preparation method for an aqueous anticorrosion coating, relates to a preparation method for a coating, and concretely relates to a preparation method for a chitosan / nanometer zinc oxide composite material filled aqueous epoxy resin. The chitosan / nanometer zinc oxide composite material is prepared by performing blending modification on nanometer zinc oxide and chitosan. Nanometer zinc oxide possesses obvious anti-ageing performance and anti-ultraviolet characteristic, the agglomeration problem of nanometer zinc oxide is solved by preparing the composite material from nanometer zinc oxide and chitosan, and also the amino at the chitosan monomer molecule is capable of reacting with epoxy resin, and the filling material can be tightly combined with epoxy resin. The method helps to improve the outdoor weatherability of aqueous epoxy resin, the aqueous epoxy resin is safe, environment-friendly and non-toxic, electrochemical corrosion is alleviated, anticorrosion period is prolonged, the crosslinking density of the aqueous epoxy resin is enhanced, and the anticorrosion performance of the aqueous epoxy resin is effectively improved.

Description

technical field [0001] The invention relates to a preparation method of architectural paint, in particular to a preparation method of water-based anticorrosion paint. Background technique [0002] Anti-corrosion coatings have attracted more and more attention, and now the international anti-corrosion work has entered a white-hot stage. At present, my country's anti-corrosion coatings are advancing in the direction of high performance, high efficiency, low energy consumption and low pollution, and water-based coatings have attracted more and more attention. Among them, water-based epoxy coatings are widely used because of their excellent properties of acid and alkali resistance, wear resistance and high hardness. However, the high conductivity of water makes it easy to corrode metals, and flash corrosion is prone to occur during the drying process of the coating film. Although the use of flash rust inhibitors and fillers can effectively solve this problem, most of the flash ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/08C08B37/08
Inventor 王娜张义男张静亢萍
Owner SHENYANG SHUNFENG IND GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap