Polyurethane is the abbreviation of polyurethane, and its English name is polyurethane. It is a kind of polymer material and is known as “the fifth largest plastic”. Because of its excellent performance, it is widely used in many fields of national economy. The product application fields involve light industry, chemical industry, electronics, textile, medical treatment, construction, building materials, automobile, national defense, aerospace, aviation and so on.
1. Applications in daily life:
Furniture industry applications: 1. Coatings, 2. Adhesives, 3. Sofas, /4. Mattresses, 5. Seats Handrail
Application of household appliances: 1. Electrical insulating paint 2. Wire and cable sheathing 3. Insulation layer of refrigerators, freezers, disinfection cabinets, water heaters, etc. 4. Waterproof potting glue for washing machine electronic devices
Construction industry application: 1. Sealant, 2. Adhesive 3. Roof waterproof insulation layer 4. Synthetic wood 8. Runway 9. Waterproof plugging agent 10. Plastic floor
Transportation industry application: 1. Seats, armrests, headrests, door inner panels, instrument panels, steering wheels, bumpers, shock absorbers, fenders 2. Carpet lining 3. Thermal insulation parts, pipelines 4. Sealing Washer 5, anti-skid chain
Application in shoemaking and tanning industry: 1. Inner and outer soles of shoes 2. Adhesive 3. Leather finishing agent 4. Coating of artificial leather and synthetic leather
Application in the sports industry: plastic sports venues (including basketball, volleyball, badminton, tennis courts, track laying), sports clothing (dancing suits, swimsuits, dance suits); sports shoes, scooters
2. Specific applications of various polyurethane materials:
PU soft foam (Flexible PU):
Cushion materials – such as seats, sofas, mattresses, etc., polyurethane soft foam It is a very ideal cushion material, and the cushion material is also the application field with the largest amount of soft foam;
Sound-absorbing material-open-cell polyurethane soft foam has good sound absorption and shock absorption functions, and can be used Used as indoor sound insulation materials;
Fabric composite materials – shoulder pads, bra sponges, cotton pads; toys.
PU rigid foam (Rigid PU):
Refrigeration and refrigeration equipment – such as refrigerators, freezers, cold storage, refrigerated trucks, etc., polyurethane rigid foam is the most ideal insulation for refrigeration and refrigeration equipment Materials;
Insulation of industrial equipment – such as storage tanks, pipes, etc.;
Building materials – in developed countries in Europe and America, polyurethane rigid foam for construction accounts for 70% of the total consumption of rigid foam %, which is more than double the amount of hard foam used in refrigerators and freezers; in China, the application and development potential of hard foam in the construction industry is very large;
Transportation industry – such as car roof, interior Decorative parts (steering wheel, instrument panel), etc.;
Imitation wood – high density (density 300~700kg/m3) polyurethane rigid foam or glass fiber reinforced rigid foam is structural foam plastic, also known as imitation wood, It has the characteristics of high strength, good toughness, dense and tough crust, simple molding process, and high production efficiency. Its strength is higher than that of natural wood, and its density is lower than that of natural wood. It can replace wood for various high-end products.
Potting materials – such as waterproof grouting materials, plugging materials, roof waterproofing materials;
Flower industry – PU flower pots, flower arrangement mud, etc.
PU semi-rigid foam (Semi-rigid PU):
Energy-absorbing foam – energy-absorbing foam has excellent shock absorption, cushioning performance, and good compression resistance Load performance and deformation recovery performance, the most typical application is for the preparation of automobile bumpers;
Integral Skin Foam (Integral Skin Foam) – used for the preparation of automobile steering wheels, armrests, headrests, etc. Softening interior functional parts and interior trim parts. Intrinsic skin foam products usually adopt Reaction Injection Molding (RIM) processing technology;
Microcellular elastomer – the most typical application of polyurethane microcellular elastomer is used in shoemaking industry.
Polyurethane Elastomers (PU Elastomers):
Casting Polyurethane Elastomers (referred to as CPU) – is the most widely used and the largest output of polyurethane elastomers;
Thermoplastic polyurethane elastomer (TPU for short) – thermoplastic polyurethane elastomer accounts for about 25% of the total polyurethane elastomer. The application of thermoplastic polyurethane in many industries requires high weather resistance, so it is often necessary to add functional additives such as ultraviolet absorbers and light stabilizers to its polymerization formula to improve the requirements of its application physical properties;
Compounding Polyurethane elastomer (abbreviated as MPU)—accounting for about 10% of the total polyurethane elastomer.
Solid tires; printing and conveying rubber rollers; profiling rubber rollers; oil seals, gasket ball joints, bushing bearings; O-rings; backing pads; soles, back roots, toe caps; linings; gears, etc.,
For different application fields, the selected elastomers have different hardness ranges.
Application in mining, metallurgy and other industries – sieve plate, shaker, etc.
Application in machinery industry – rubber rollers, tapes, seals, etc.;
Application in automobile industry – tires, sealing rings, etc.;
Application in light industry ——Polyurethane sole material, polyurethane synthetic leather, polyurethane fiber;
Applications in the construction industry – waterproof materials, paving materials, potting materials, etc.
Tag:   UV Absorber Light Stabilizer
