Preparation methods of acid-doped pyrrole-m-toluidine copolymer and modified anticorrosive coating

An anti-corrosion coating and toluidine technology, applied in the field of material engineering, can solve the problems of poor thermal stability and chemical stability, poor anti-corrosion performance, etc., and achieve the effects of good corrosion resistance, good anti-corrosion performance and good electrical conductivity.
CN107245146AActive Publication Date: 2017-10-13SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
Publication Date
2017-10-13

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Abstract

The invention provides preparation methods of an acid-doped pyrrole-m-toluidine copolymer and a modified anticorrosive coating. An acid-doped pyrrole-m-toluidine copolymer material is prepared by a chemical oxidative polymerization method, E-44 epoxy resin is modified with the pyrrole-m-toluidine copolymer material, the acid-doped pyrrole-m-toluidine copolymer material is added in the epoxy resin, Q235 carbon steel is coated with the modified epoxy resin, and the anticorrosive performance of the coated Q235 carbon steel is studied. When the volume ratio of pyrrole and m-toluidine is 2 to 1, the synthesized copolymer, as filler, is added in the epoxy resin to be used as a coating, and a coating layer of the coating is largest in resistance and smallest in corrosion current density, i.e. the corrosion resistance performance of the coating is the best. By passing through binding force rating, the coating can reach a primary standard and has very good constructability. The coating has dual advantages of polypyrrole and the m-toluidine and is very good in conductivity, good in anticorrosive performance, small in pollution and low in cost.
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Description

technical field

[0001] The invention relates to an anti-corrosion coating, in particular to a preparation method and application of an acid-doped pyrrole-m-toluidine copolymer modified anti-corrosion coating, which belongs to the field of material engineering. Background technique

[0002] Metal corrosion will cause huge losses, but no matter now or in the future, metal materials occupy an important position in the field of materials with their excellent mechanical and technological properties. Therefore, research on metal corrosion protection methods to control metal corrosion and reduce corrosion losses, It is of great significance to the development of the national economy. The most commonly used method is to coat the metal surface with an anti-corrosion coating to isolate the corrosive medium from contacting the metal substrate. With the development of construction, transportation, petrochemical, electric power and other industries, the market size of anti-corrosion coa...

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
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