Unlock instant, AI-driven research and patent intelligence for your innovation.

Polymer coating material with corrosion detection and self-repair functions and preparation method

A polymer coating and corrosion detection technology, applied in the direction of analysis of materials, anti-corrosion coatings, coatings, etc., to achieve the effect of self-detection and self-repair, and prolong service life

Active Publication Date: 2019-07-19
INST OF PROCESS ENG CHINESE ACAD OF SCI
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for micro-nano-scale corrosion sites, even if they can be detected, artificial repair is not worth the candle

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
  • Polymer coating material with corrosion detection and self-repair functions and preparation method
  • Polymer coating material with corrosion detection and self-repair functions and preparation method
  • Polymer coating material with corrosion detection and self-repair functions and preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The preparation method of above-mentioned polymer coating material of the present invention, comprises the following steps:

[0029] Step 1, dissolving the fluorescence detection reagent or self-repair reagent, then adding polymer microcapsules, vacuum impregnating and drying, to obtain polymer microcapsules loaded with fluorescence detection reagent or self-repair reagent;

[0030] Step 2, compounding the polymer microcapsules loaded with the fluorescence detection reagent and the self-repairing reagent into the polymer resin to obtain the polymer coating material.

[0031] In the present invention, the component that develops the color is the fluorescent detection reagent, and the self-repairing anti-corrosion function is the self-repairing reagent. It is only necessary to ensure that the content of the converted fluorescent detection reagent or self-repairing reagent in the polymer coating is not low Therefore, the present invention does not limit the amount of polym...

Embodiment 1

[0039] The fluorescent detection reagent coumarin and the self-repairing reagent benzotriazole were dissolved, then the hollow polystyrene microspheres were added, vacuum impregnated for a period of time and then dried to obtain the hollow polystyrene microspheres loaded with the fluorescent detection reagent and the self-repairing reagent. ball. Hollow polystyrene microspheres loaded with fluorescent detection reagents and self-repairing reagents were dispersed into epoxy resin to obtain an epoxy resin coating material capable of self-detection and self-repairing of corrosion, in which the fluorescence detection reagent coumarin The content is 100ppm, and the content of the self-healing agent benzotriazole is 5000ppm. The resin was applied to the surface of carbon steel to solidify, then immersed in 3.5% NaCl solution, and the corrosion of the surface of carbon steel was detected by laser confocal. At the same time, the carbon steel coated with smart coating and pure epoxy r...

Embodiment 2

[0041] The fluorescent detection reagent coumarin and the self-repairing reagent benzotriazole were dissolved, then the hollow polystyrene microspheres were added, vacuum impregnated for a period of time and then dried to obtain the hollow polystyrene microspheres loaded with the fluorescent detection reagent and the self-repairing reagent. ball. Hollow polystyrene microspheres loaded with fluorescent detection reagents and self-repairing reagents were dispersed into epoxy resin to obtain an epoxy resin coating material capable of self-detection and self-repairing of corrosion, in which the fluorescence detection reagent coumarin The content is 5ppm, and the content of the self-healing reagent benzotriazole is 5ppm. The resin was coated on the aluminum surface to solidify, then immersed in 3.5% NaCl solution, and the corrosion of the aluminum surface was detected by laser confocal. At the same time, aluminum coated with smart coating and pure epoxy resin were simultaneously i...

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 a polymer coating material with corrosion-detecting and self-repairing functions and a preparation method. The polymer coating material is prepared from a polymer resin, and a fluorescence detection reagent and a self-repairing reagent loaded on a polymer microcapsule, wherein the mass concentration of the fluorescence detection reagent and the self-repairing reagent in the polymer coating is not lower than 5ppm; the polymer microcapsule is a porous-structure or hollow-structure polymer, and preferably, the polymer microcapsule is a hollow polystyrene microsphere, a porous polydivinylbenzene microsphere or a hollow polydivinylbenzene / polyacrylic acid microsphere. The dual-function intelligent polymer coating with environmental response provided by the invention can respond to corrosion in time when corrosion occurred, and the self-detection and the self-repairing of corrosion can be effectively realized, so that the service life of a metal matrix is prolonged.

Description

technical field [0001] The invention belongs to the technical field of corrosion detection and intelligent coating, and mainly relates to an intelligent polymer coating material which can be used for detecting metal corrosion and self-repairing function and a preparation method thereof. Background technique [0002] Corrosion refers to the process of metal loss and damage under the action of the surrounding medium. According to the survey results released by the Chinese Academy of Engineering's major consulting project "Corrosion Status and Control Strategy Research in my country", the total loss caused by corrosion in my country in 2014 exceeded 2.1 trillion yuan. Renminbi accounted for about 3.34% of GDP that year, a figure that exceeded the sum of economic losses caused by various natural disasters such as earthquakes, storms, and floods. Therefore, the corrosion protection of metal materials has always been a very important scientific research topic. Polymer coating mate...

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 Patents(China)
IPC IPC(8): C09D163/00C09D5/08G01N17/00
CPCC09D5/08C09D163/00G01N17/006C08L25/06C08K9/12C08K5/3475C08K5/1545
Inventor 李国良王军鹏齐涛
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI