Inorganic zinc-rich paint containing modified graphene and preparation method of inorganiczinc-rich paint

An inorganic zinc-rich coating, graphene technology, applied in anti-corrosion coatings, conductive coatings, coatings and other directions, can solve problems such as anti-corrosion performance to be improved, and achieve the effect of improving anti-corrosion performance, overcoming easy agglomeration, and improving electrical conductivity

Inactive Publication Date: 2018-11-20
CHONGQING ACADEMY OF SCI & TECH
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicic acid ester hydrolyzes after absorbing moisture, and can be cross-linked with zinc powder to form a network polymer, and further combined with polyvi

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1. Preparation of modified graphene

[0023] (1) Add 500 mg of 4-aminobenzoic acid and 200 mg of sodium nitrite to 100 ml of water, and stir for 2 hours under ice bath;

[0024] (2) Add 6g of 1N hydrochloric acid to the reaction system under ice bath, and continue to stir in ice bath for 2h;

[0025] (3) Add 1g of reduced graphene oxide to water, ultrasonically disperse for 15 minutes, and then add the dispersion to the above reaction solution in an ice bath and stir for 3 hours;

[0026] (4) Let stand overnight, filter, wash the filter cake with water to neutrality, wash the filter cake with 60% ethanol 3 times, and obtain 0.8 g of product after drying.

[0027] According to this method, several types of modified graphenes modified with functional groups such as benzoic acid, benzenesulfonic acid and ethanolamine are obtained.

Example Embodiment

[0028] Example 2. Preparation of Inorganic Zinc-Rich Paint of Modified Graphene

[0029] (1) Add 1% of the total weight of the modified graphene to ethyl silicate, shake and stir until a stable and uniform solution is formed, and component A is obtained.

[0030] (2) Add 0.3% of the total weight of the silane coupling agent to the polyvinyl butyral, stir and mix uniformly to obtain B.

[0031] (3). Add component B to component A in a ratio of 1:5. After stirring, add an equal weight of component C (zinc powder) and stir continuously. After 30 minutes, a graphene modified Inorganic zinc-rich coating.

Example Embodiment

[0032] Example 3 Anticorrosion experiment of graphene modified inorganic zinc-rich coating

[0033] (1) Treatment of the iron sheet: Polish the 2cm*10cm iron sheet with an angle grinder until the metal surface of the iron sheet is full of metal color, then use a file to polish the edges and corners of the iron sheet, and then rinse with absolute ethanol and dry it for later use.

[0034] (2) Paint treatment: Mix the various components of the zinc-rich paint in proportion, stir evenly, and then stand for 30 minutes.

[0035] (3) Brushing operation: Dip the paint with a wool brush, evenly brush it on the iron sheet, hang it to dry for more than 48 hours for later use.

[0036] (4) Soaking operation: prepare sodium chloride solution according to the concentration ratio of 3.5%, and then vertically immerse the painted iron flakes in sodium chloride solution to observe the corrosion of the iron flakes.

[0037] According to the records and observations of the immersion experiment, and observ...

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

The invention relates to the field of paint and particularly relates to inorganic zinc-rich paint containing modified graphene and a preparation method of the inorganic zinc-rich paint. The paint is prepared from the following three components in parts by weight: A: 40-50 parts of ethyl silicate and 0.5-1.0 parts of modified graphene; B: 5-10 parts of polyvinyl butyral and 0.2-0.5 parts of a silane coupling agent; and C: 40-55 parts of zinc powder, wherein the modified grapheme refers to modified grapheme which can be stably dispersed in alcohol and silicate ester. The modified graphene adopted in the paint can be uniformly and stably dispersed in an alcoholic solvent without addition of a surfactant, and the defect that the graphene is easily agglomerated in an inorganic medium is overcome, so that the modified graphene can be uniformly dispersed in the inorganic zinc-rich paint, the electrical conductivity of the paint is improved, the water insulation effect of the paint is enhanced, and then the corrosion resistance of the paint is remarkably improved.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an inorganic zinc-rich coating with modified graphene and a preparation method thereof. Background technique [0002] Corrosion of metal materials causes a large amount of waste of resources, and the annual loss caused by corrosion problems in the world is as high as tens of billions of dollars. Therefore, the research on anti-corrosion methods of metal materials has always been an important research field. Anti-corrosion coatings are one of the most common anti-corrosion methods, but the types, compositions, properties and uses of anti-corrosion coatings vary widely. Simple classification, coatings can be divided into organic coatings and inorganic coatings. Because organic coatings contain a large amount of organic solvents, these solvents volatilize into the atmosphere, causing air pollution and seriously affecting environmental safety and human health. Therefore, traditional organic ...

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
IPC IPC(8): C09D1/00C09D5/24C09D5/10
CPCC09D1/00C09D5/106C09D5/24
Inventor 李滨程鹏王玉秦建波
Owner CHONGQING ACADEMY OF SCI & TECH
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