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Epoxy resin anticorrosive paint crosslinking agent
2017-8-18 11:18:22
Epoxy resin anticorrosive paint crosslinking agent
Epoxy resin anticorrosion coatings are widely used in engineering construction, and their anti-corrosion performance is greatly influenced by crosslinking agents.
In this paper, the influence of the crosslinking agent on the coating basic properties and anticorrosive properties of epoxy resin anticorrosive coatings is analyzed and studied.
Because of the defects of the material itself, the influence of the natural environment and the causes of management, most materials, especially the metal materials, are corroded. According to the survey of developed countries, the annual economic loss caused by corrosion is about 2% ~ 4% of GDP, which is a very serious problem for people.
Anticorrosive coating is the easiest and most effective method to use anticorrosive coating. Epoxy resin coating is the most widely used. Epoxy resin is divided into thermosetting resin and thermoplastic resin. For thermosetting resins, the crosslinking agent of epoxy resin anticorrosive coating is an important component.
For economy and generality, most epoxy resin in China and abroad are mostly bisphenol A epoxy resin, and the difference is the choice of crosslinking agent. In this paper, the different epoxy crosslinking agent of epoxy resin anticorrosion coating anticorrosion performance, this paper compares and analyzes the influence of optimizing suitable types of crosslinking agent to improve the anti-corrosion performance of materials, and reduce the corrosion damage.
The performance characteristics of epoxy resin anticorrosive coatings depend largely on crosslinking agents. High performance epoxy coatings must be compatible with high performance and good constructional epoxy crosslinking agents. But at present, domestic research focuses on the epoxy resin, and the development of crosslinking agent is obviously lagging behind, and it mainly remains on the fatty amine and its modified products.
Epoxy crosslinking agent varieties more, general use modified polyamide anti-corrosion primer, when high requirements for coating used modified aromatic fatty amine, modified alicyclic amine or modified phenolic amine crosslinking agent, so the study of crosslinking agent is currently the focus of research. Based on this, the following analysis is designed to determine the performance of cross-linking agent:
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Epoxy resin anticorrosion coatings are widely used in engineering construction, and their anti-corrosion performance is greatly influenced by crosslinking agents.
In this paper, the influence of the crosslinking agent on the coating basic properties and anticorrosive properties of epoxy resin anticorrosive coatings is analyzed and studied.
Because of the defects of the material itself, the influence of the natural environment and the causes of management, most materials, especially the metal materials, are corroded. According to the survey of developed countries, the annual economic loss caused by corrosion is about 2% ~ 4% of GDP, which is a very serious problem for people.
Anticorrosive coating is the easiest and most effective method to use anticorrosive coating. Epoxy resin coating is the most widely used. Epoxy resin is divided into thermosetting resin and thermoplastic resin. For thermosetting resins, the crosslinking agent of epoxy resin anticorrosive coating is an important component.
For economy and generality, most epoxy resin in China and abroad are mostly bisphenol A epoxy resin, and the difference is the choice of crosslinking agent. In this paper, the different epoxy crosslinking agent of epoxy resin anticorrosion coating anticorrosion performance, this paper compares and analyzes the influence of optimizing suitable types of crosslinking agent to improve the anti-corrosion performance of materials, and reduce the corrosion damage.
The performance characteristics of epoxy resin anticorrosive coatings depend largely on crosslinking agents. High performance epoxy coatings must be compatible with high performance and good constructional epoxy crosslinking agents. But at present, domestic research focuses on the epoxy resin, and the development of crosslinking agent is obviously lagging behind, and it mainly remains on the fatty amine and its modified products.
Epoxy crosslinking agent varieties more, general use modified polyamide anti-corrosion primer, when high requirements for coating used modified aromatic fatty amine, modified alicyclic amine or modified phenolic amine crosslinking agent, so the study of crosslinking agent is currently the focus of research. Based on this, the following analysis is designed to determine the performance of cross-linking agent:
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
(1) several general and new crosslinking agents were selected, with 601 epoxy resin as the base resin, and the epoxy anti-corrosion coatings of different crosslinking agents were made by changing the crosslinking agent in the paint formulation.
(2) the basic properties of epoxy anticorrosive coatings for different crosslinking agents, such as hardness, adhesion, thickness, flexibility and impact strength, are studied.
(3) electrochemical communication impedance test was conducted for different crosslinking agent epoxy anti-corrosion coatings, and the corrosion resistance of different crosslinking agents on epoxy anti-corrosion coatings was studied.
There are eight cross-linking agents in this paper: 1. Nx-2003 crosslinking agent; 2. Nx-2003d crosslinking agent; (1) D0965 crosslinking agent; D9050w crosslinking agent; D9050LT crosslinking agent; 6. 7. A cross-linking agent for the NX - 2015A.
Coating the basic performance test mainly according to the national standards, such as hardness testing on the basis of GBT6739-2006 "the film hardness pencil method", anti-corrosion performance test carried out by electrochemical impedance phase in the form of.
Epoxy anti-corrosion coatings of different crosslinking agents have good adhesion, hardness, impact strength, flexibility and weatherability, which are basically the same. The difference is reflected in the hardness of the paint film, the dry time of the table, the time of the actual dry time, the shortest crosslinking time of D8190, the longest crosslinking time of the D9050W, the nx-2015a is relatively short, but its hardness is low. Combined with all performance, the best comprehensive performance is D8190.
Improvement in the resin, such as acrylic resin, using vinyl monomers, such as ene propyl methacrylate (AL2MA), can be used in pure c or styrene acrylic resin, especially the deposit in to ALMA copolymerization of styrene. The same drier (e.g., cobalt salts) can catalyze the crosslinking of allyl.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
(1) several general and new crosslinking agents were selected, with 601 epoxy resin as the base resin, and the epoxy anti-corrosion coatings of different crosslinking agents were made by changing the crosslinking agent in the paint formulation.
(2) the basic properties of epoxy anticorrosive coatings for different crosslinking agents, such as hardness, adhesion, thickness, flexibility and impact strength, are studied.
(3) electrochemical communication impedance test was conducted for different crosslinking agent epoxy anti-corrosion coatings, and the corrosion resistance of different crosslinking agents on epoxy anti-corrosion coatings was studied.
There are eight cross-linking agents in this paper: 1. Nx-2003 crosslinking agent; 2. Nx-2003d crosslinking agent; (1) D0965 crosslinking agent; D9050w crosslinking agent; D9050LT crosslinking agent; 6. 7. A cross-linking agent for the NX - 2015A.
Coating the basic performance test mainly according to the national standards, such as hardness testing on the basis of GBT6739-2006 "the film hardness pencil method", anti-corrosion performance test carried out by electrochemical impedance phase in the form of.
Epoxy anti-corrosion coatings of different crosslinking agents have good adhesion, hardness, impact strength, flexibility and weatherability, which are basically the same. The difference is reflected in the hardness of the paint film, the dry time of the table, the time of the actual dry time, the shortest crosslinking time of D8190, the longest crosslinking time of the D9050W, the nx-2015a is relatively short, but its hardness is low. Combined with all performance, the best comprehensive performance is D8190.
Improvement in the resin, such as acrylic resin, using vinyl monomers, such as ene propyl methacrylate (AL2MA), can be used in pure c or styrene acrylic resin, especially the deposit in to ALMA copolymerization of styrene. The same drier (e.g., cobalt salts) can catalyze the crosslinking of allyl.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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