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    Home > Coatings News > Paints and Coatings Market > General knowledge of coating: application of Polyaniline in coating industry

    General knowledge of coating: application of Polyaniline in coating industry

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    It is suggested that the discovery of polyaniline anti-corrosion performance has brought new improvement to the coating anti-corrosion performance, especially to the point polyaniline, which has unique electrochemical properties and can be applied to anti-corrosion, anti pollution, anti-static coating and other fields However, polyaniline is difficult to dissolve and melt, and poor film-forming performance limits its application Generally, some technology is adopted to composite polyaniline with materials with good film-forming performance to improve its application performance At present, the application of Polyaniline in coating mainly has the following methods 1、 Mechanical blending mechanical blending refers to the process of mechanical grinding or mechanical stirring and conventional coating Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Home of coatings: the discovery of polyaniline anti-corrosion performance has brought new improvement to the coating anti-corrosion performance, especially to the point polyaniline, which has unique electrochemical properties, and can be applied to anti-corrosion, anti pollution, anti-static coating and other fields However, polyaniline is difficult to dissolve and melt, and poor film-forming performance limits its application Generally, some technology is adopted to composite polyaniline with materials with good film-forming performance to improve its application performance At present, the application of Polyaniline in coating mainly has the following methods 1、 Mechanical blending mechanical blending refers to coating by mechanical grinding or mechanical stirring after mixing with conventional coating film-forming materials This method is currently the most widely used method to study the anti-corrosion performance and mechanism of polyaniline 2、 Solution mixing solution mixing means that polyaniline and polymer solution with good film-forming property form a cosolvent for coating, and the coating is formed after solvent volatilization The main disadvantages of this method are: the solubility of Polyaniline in common organic solvents is very low, even insoluble In other high boiling point solvents, the coating quality will be adversely affected Moreover, most of these solvents are expensive, toxic and limited in application 3、 In order to improve the corrosion resistance of polyaniline, polyaniline nanocomposites were prepared by adding metal nanoparticles into polyaniline polymerization system There are three main methods: in-situ composite, direct mixing and layer by layer self-assembly Four In situ copolymerization refers to the formation of aniline copolymers by copolymerization of aniline and other polymer monomers in solution or emulsion system This copolymer can greatly improve solubility, film forming and adhesion of polyaniline 5、 Electrochemical deposition refers to the deposition of polyaniline coating directly on the surface of metal electrode by electrochemical polymerization, mainly including potentiostatic method, galvanostatic method, potentiodynamic scanning method and pulse polarization method Generally, aniline is polymerized on the anode in acid solution, but this method is difficult to be used in large metal parts, so its application is limited Mechanical blending is the simplest and most widely used technology among the five composite / blending methods of polyaniline At present, polyaniline blending coating products are more and more popular In special occasions, paint is like anti-static, anti pitting, anti perforation, etc Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,
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