News Details
Closed - type polyisocyanate paint crosslinking agent
2017-8-21 18:14:36
Closed - type polyisocyanate paint crosslinking agent
The closed - type polyisocyanate crosslinking agent is modified by hydrophilic, so that the products can be dispersed in the waterborne resin system. Under the conditions of high temperature baking, the sealing agent will unseal from the system and release the isocyanate group, isocyanate group and hydroxyl reaction.
The closed - type polyisocyanate crosslinking agent is used as crosslinking agent for high temperature baking system. At present, the main purpose of the closed - type polyisocyanate crosslinking agent is to apply in the paint of automobile original factory, and also in water-based industrial paint. Enclosed water dispersible polyisocyanate crosslinking agent with melamine crosslinking agent with, with melamine crosslinking agent to reduce the cost, enclosed water dispersible polyisocyanate crosslinking agent to improve performance.
Polyisocyanate since the 1860 s began to be used for two-component polyurethane coatings and two-component polyurethane coating has become a mainstream technology in the field of many applications, such as car repair paint, large transport industrial paint, wood paint, plastic paint, etc. However, with the attention of the society to environmental protection, the high performance crosslinking agent which can reduce the discharge of organic volatiles, such as water dispersible crosslinking agent and low-viscosity crosslinking agent, will be the focus of future development.
Water - based resin is a new resin system for dispersing medium with water instead of organic solvent. With water, the solution is formed, and after the water evaporates, the resin molding material is formed. Water - based resin is not the water - based resin itself, but the membrane material obtained after the water volatilization.
Water-based resins include three categories: water-soluble polymers, high absorbent resin and water-based coatings, which are new fields of polymer science developed in the 1970s. Due to its unique and irreplaceable function, with the continuous development of scientific research and production, the industrialization of products has formed an independent industry, which belongs to the category of fine chemical industry. Because of the extremely wide use of waterborne resin, it has been listed as the key point in the development of chemical industry for many years.
To replace the application of solvent based products in various fields. Waterborne polyurethane is the representative of coating, adhesive, fabric coating and finishing agent, leather finishing agent, paper surface primer and fiber surface primer.
Building decoration. Include floor paint, elastic paint, building wall paint, furniture wood paint, water-based interior wall paint.
Industrial coatings. Including industrial paint, vehicle paint, anti-corrosion paint, water-based metallic paint, metal surface treatment (polishing); Water-based plastic paint (widely used in consumer electronics), etc.
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
The closed - type polyisocyanate crosslinking agent is modified by hydrophilic, so that the products can be dispersed in the waterborne resin system. Under the conditions of high temperature baking, the sealing agent will unseal from the system and release the isocyanate group, isocyanate group and hydroxyl reaction.
The closed - type polyisocyanate crosslinking agent is used as crosslinking agent for high temperature baking system. At present, the main purpose of the closed - type polyisocyanate crosslinking agent is to apply in the paint of automobile original factory, and also in water-based industrial paint. Enclosed water dispersible polyisocyanate crosslinking agent with melamine crosslinking agent with, with melamine crosslinking agent to reduce the cost, enclosed water dispersible polyisocyanate crosslinking agent to improve performance.
Polyisocyanate since the 1860 s began to be used for two-component polyurethane coatings and two-component polyurethane coating has become a mainstream technology in the field of many applications, such as car repair paint, large transport industrial paint, wood paint, plastic paint, etc. However, with the attention of the society to environmental protection, the high performance crosslinking agent which can reduce the discharge of organic volatiles, such as water dispersible crosslinking agent and low-viscosity crosslinking agent, will be the focus of future development.
Water - based resin is a new resin system for dispersing medium with water instead of organic solvent. With water, the solution is formed, and after the water evaporates, the resin molding material is formed. Water - based resin is not the water - based resin itself, but the membrane material obtained after the water volatilization.
Water-based resins include three categories: water-soluble polymers, high absorbent resin and water-based coatings, which are new fields of polymer science developed in the 1970s. Due to its unique and irreplaceable function, with the continuous development of scientific research and production, the industrialization of products has formed an independent industry, which belongs to the category of fine chemical industry. Because of the extremely wide use of waterborne resin, it has been listed as the key point in the development of chemical industry for many years.
To replace the application of solvent based products in various fields. Waterborne polyurethane is the representative of coating, adhesive, fabric coating and finishing agent, leather finishing agent, paper surface primer and fiber surface primer.
Building decoration. Include floor paint, elastic paint, building wall paint, furniture wood paint, water-based interior wall paint.
Industrial coatings. Including industrial paint, vehicle paint, anti-corrosion paint, water-based metallic paint, metal surface treatment (polishing); Water-based plastic paint (widely used in consumer electronics), etc.
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
Waterborne coatings with water and non-organic solvents are used as diluents, so there are no toxic chemicals. (before dispersing medium for organic solvent, organic solvent containing toxic substances, completely vaporize clean need at least several decades, for children and unborn baby has a great impact on the child's mental development is, in which "the free TDI" also has the risk of cancer.
Water-based paint film after features: high adhesion to substrate and the coating corrosion resistance after crosslinking and excellent chemical resistance, coating closed reduction, high hardness, good wear resistance, corrosion resistance, electrical insulation performance, etc.
Melamine, commonly known as melamine, protein essence, IUPAC is named "1, 3, 5-triazine - 2, 4, 6-triamine", and is a triazine nitrogen heterocyclic organic compound, used as a chemical raw material. It is white monoclinic crystal, almost tasteless, slightly soluble in water (3.1 g/L normal temperature), soluble in methanol, formaldehyde, acetic acid, hot ethylene glycol, glycerin, pyridine, etc., insoluble in acetone, ether.
Melamine and formaldehyde condensation polymerization can make melamine resin, can be used in plastics and coating industry, also can be used as textile material, anti-shrink treatment. Its modified resin can be used in bright, durable and hard metal coatings. It can also be used for strong, heat-resistant decorative sheet, moisture-proof paper and grey leather tanning agent, synthetic fireproof laminate adhesives, water repellent fixers or hardeners, etc. Melamine, formaldehyde and butanol are made of 582 melamine resin. It is used as a leveling agent for solvent - based polyurethane coating.
As A representative of ESO technology products, with conventional single silane as gamma glycidyl ether base propyl silane three oxygen radicals (Silquest * A - 187 silane) and gamma - propyl glycidyl ether oxygen triethoxy silane (Silquest * A - 1871 silane) compared to the part of the performance of such as product has many advantages of oligomeric silane structure.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Waterborne coatings with water and non-organic solvents are used as diluents, so there are no toxic chemicals. (before dispersing medium for organic solvent, organic solvent containing toxic substances, completely vaporize clean need at least several decades, for children and unborn baby has a great impact on the child's mental development is, in which "the free TDI" also has the risk of cancer.
Water-based paint film after features: high adhesion to substrate and the coating corrosion resistance after crosslinking and excellent chemical resistance, coating closed reduction, high hardness, good wear resistance, corrosion resistance, electrical insulation performance, etc.
Melamine, commonly known as melamine, protein essence, IUPAC is named "1, 3, 5-triazine - 2, 4, 6-triamine", and is a triazine nitrogen heterocyclic organic compound, used as a chemical raw material. It is white monoclinic crystal, almost tasteless, slightly soluble in water (3.1 g/L normal temperature), soluble in methanol, formaldehyde, acetic acid, hot ethylene glycol, glycerin, pyridine, etc., insoluble in acetone, ether.
Melamine and formaldehyde condensation polymerization can make melamine resin, can be used in plastics and coating industry, also can be used as textile material, anti-shrink treatment. Its modified resin can be used in bright, durable and hard metal coatings. It can also be used for strong, heat-resistant decorative sheet, moisture-proof paper and grey leather tanning agent, synthetic fireproof laminate adhesives, water repellent fixers or hardeners, etc. Melamine, formaldehyde and butanol are made of 582 melamine resin. It is used as a leveling agent for solvent - based polyurethane coating.
As A representative of ESO technology products, with conventional single silane as gamma glycidyl ether base propyl silane three oxygen radicals (Silquest * A - 187 silane) and gamma - propyl glycidyl ether oxygen triethoxy silane (Silquest * A - 1871 silane) compared to the part of the performance of such as product has many advantages of oligomeric silane structure.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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