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How much do you know about melamine?

wallpapers News 2021-03-29
Melamine, commonly known as melamine, protein essence, the molecular formula is C3H6N6, IUPAC named "1,3,5-triazine-2,4,6-triamine", is a triazine nitrogen-containing heterocyclic organic compound, Used as chemical raw materials. It is a white monoclinic crystal, almost odorless, slightly soluble in water (3.1g/L at room temperature), soluble in methanol, formaldehyde, acetic acid, hot glycol, glycerin, pyridine, etc., insoluble in acetone, ethers, and harmful to the body Harmful, can not be used for food processing or food additives.
 
Physical properties
Appearance and properties: white monoclinic crystals.
Melting point: 354°C
Density: 1.661g/cm3
Solubility: insoluble in water, slightly soluble in ethylene glycol, glycerin, ethanol, insoluble in ether, benzene, carbon tetrachloride.
 
Chemical properties
Non-flammable, stable in nature at room temperature. The aqueous solution is weakly alkaline (pH=8), and can form melamine salts with hydrochloric acid, sulfuric acid, nitric acid, acetic acid, oxalic acid, etc. Under neutral or slightly alkaline conditions, it condenses with formaldehyde to form various methylol melamines, but under slightly acidic conditions (pH=5.5~6.5), it undergoes polycondensation with methylol derivatives to form resins. When hydrolyzed by strong acid or strong alkaline aqueous solution, the amine group is gradually replaced by the hydroxyl group to form cyanuric acid diamide first, further hydrolyzed to form cyanuric acid monoamide, and finally cyanuric acid.
 
Market development
Melamine uses urea as raw material, and it takes about 3 tons of urea to produce 1 ton of melamine. China is the world’s largest urea producer, with large urea production and low prices. Even under the background of high tariffs to suppress urea exports, the annual urea export volume still reaches (3-7) million tons. The abundant urea resources make China The production of melamine has unique advantages. The serious expansion of China's melamine production capacity has led to fierce competition among Chinese melamine companies and weak increases in product prices in the industry.
 
The main purpose
Condensation and polymerization with formaldehyde can produce melamine resin, which can be used in the plastics and coatings industry and can also be used as an anti-folding and anti-shrinking treatment agent for textiles. The modified resin can be used as a metallic paint with bright color, durability, and good hardness. It can also be used for sturdy, heat-resistant decorative sheets, moisture-proof paper, and gray leather tanning agents, adhesives for synthetic fireproof laminates, fixatives or hardeners for waterproofing agents, etc. 582 melamine resin made from melamine, formaldehyde, and butanol. Used as a leveling agent for solvent-based polyurethane coatings, with particularly good effect.
The main raw material for the manufacture of melamine-formaldehyde resin used as an organic elemental analysis reagent, and also used in the synthesis of organic and resin as a tanning agent and filler in leather processing. Condensation and polymerization with formaldehyde can produce melamine resin, which can be used in the plastics and coatings industry and can also be used as an anti-folding and anti-shrinking treatment agent for textiles. The modified resin can be used as a metallic paint with bright color, durability, and good hardness. Melamine resin made by condensation polymerization with formaldehyde is widely used in the manufacture and processing of wooden building templates. It can be used for waterproofing the surface of the template and adhesion of the wood core board, increasing the number of repeated uses of the template.
 
Ozbo.com (aka. Tanki New Materials Co.Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. As a leading nanotechnology development and product name manufacturer, Tanki New Materials Co.Ltd dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for melamine, please feel free to contact us.
 

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