Application status of melamine

Melamine is a kind of widely used organic chemical intermediate product with uniform structure, and its main use is as raw material for the production of melamine formaldehyde resin (MF) This resin is a thermosetting resin for pilots It is flame-retardant, water-resistant, heat-resistant, aging resistant, arc resistant, chemical resistant, with good insulation performance, gloss and mechanical strength It is widely used in wood, plastic, coating, paper making, textile, leather, electrical, pharmaceutical and other industries Its main uses are as follows: 1 Decorative veneer: it can be made into fire-proof, seismic and heat-resistant laminate, bright color, solid and heat-resistant, pollution-resistant decorative board, as veneer of aircraft, ships and furniture, and as decoration materials of fire-proof, seismic and heat-resistant houses 2 Coating: melamine is used as crosslinking agent in acrylic, alkyd and epoxy coatings After etherification with butanol and methanol, it can be used as a binder of high-grade thermosetting coating and solid powder coating, and can be used to make metal coating and high-grade amino resin decorative paint for vehicles, electrical appliances and furniture The paint has the characteristics of bright color, strong adhesion, high hardness, aging resistance and corrosion resistance 3 Molding powder: after mixing, granulating and other processes, melamine plastic can be made, non-toxic, anti pollution, and can still maintain good electrical performance when wet, and can be made into white, anti falling daily utensils, sanitary ware, porcelain like tableware, electrical equipment and other high-grade insulation materials 4 Paper: after etherification with ether, it can be used as paper treatment agent to produce anti wrinkle, anti shrinkage, moisture-proof, non rotten banknotes, military maps and other high-grade paper 5 When melamine formaldehyde resin is mixed with other raw materials, it can also produce fabric finishing agent, leather tanning agent, polishing agent and water resistant agent, rubber adhesive, high efficiency cement water reducing agent (naphthalene as raw material), steel nitriding agent, etc The principle of combustion supporting agent is that the nitrogen in melamine is decomposed by high temperature, which releases nitrogen gas, so melamine is used as a flame retardant for polyurethane foam Melamine adhesive and urea formaldehyde adhesive have the characteristics of strong adhesion, water resistance and heat resistance; compared with phenolic adhesive, melamine adhesive has the characteristics of fast curing, non-toxic, transparent and non polluting board surface