Introduction of classification and use of polyurethane

Release time:

2023-12-27

The application areas of polyurethane include the following:

1. Clothing and sports goods

Polyurethane is widely used in the clothing industry. Its representative products are comfortable to wear, soft, flexible, elastic design free high elastic fiber, leather products. In addition to women's underwear, pantyhose and socks, its amazing stretching performance in ski shirts, swimming suits to get the most out. In addition, in the skis, sailing and other sporting goods, with excellent wear resistance and weather resistance of polyurethane coatings are used; skis, surfboards, such as the use of lightweight, excellent wear resistance of rigid foam core material; sneaker soles are also used in the elasticity and wear resistance of excellent elastomers.

2, daily necessities

At home, the use of polyurethane products for us to create a comfortable living environment. Polyurethane coatings paint beautiful luster on the surface of furniture, piano and other musical instruments, and play a strong protective role. Soft foam is widely used in seat cushion materials, and is also used in healthy bedding, to disperse the pressure on the human body. In kitchens, rigid foams are used as heat insulating materials for refrigerators and the like, and polyurethane resins, which are excellent in adhesion to plastic films, are used as adhesives for food packaging. In addition, in terms of sealing materials for water purifiers, diapers, sanitary napkins and other products, elastomers that are harmless to the human body are also expanding their use. In our lives, polyurethane artificial leather, synthetic leather, and foam are used in bags and footwear, and they have won praise for their natural feel and durability.

3. Electronic Products

Promoting the development of the electronics industry is the mission of polyurethane. Polyurethane adhesives having excellent abrasion resistance and adhesion are used in audio tapes, video tapes, computer disks, charge cards, and electronic tickets as magnetic binders for various recording media to improve recording density. Further, as an insulating sealing material, varnish is used in a polyurethane enameled wire, and ultraviolet curing (UV) type polyurethane rubber is utilized in an optical fiber cable. In recent years, polyurethane adhesives have been used in the printed circuits of mobile phones, and the research on application development is making great progress in response to the needs of the times.

4, Medical Machinery

Polyurethanes have also contributed to medical advances. Because of its special structure, polyurethane elastomer has excellent human adaptability, adhesion and anti-thrombosis, and is used as the best sealing material to fix the hollow filament bundle of artificial kidney. At present, the research and development work of further improving the anti-thrombosis and human adaptability and applying it to artificial heart and artificial skin is also very active.

5. Vehicles and other means of transport

The automotive industry requires future cars to have comfortable living performance, safety performance, and can improve fuel consumption, protect the environment, and these properties are inseparable from polyurethane. Various polyurethanes are widely used in all aspects of automobiles, in addition to roof materials with heat and sound insulation effects, car seat cushions to ensure comfortable driving, underbody materials and sealing materials to isolate noise and vibration, and maintain a quiet space, etc. It also plays a role in instrument panels, door interiors, front panels, seat backs, mudguards, shock reduction absorbers, oil seals, non-explosive tires, and coatings. In addition, the use of polyurethane made of tire chains with strong and durable, good wear resistance, while not hurting the ground characteristics, by the public. Polyurethane coatings have excellent durability and weather resistance, and are used in bicycles, motorcycles, light rail trams, Shinkansen and ships.

6. Civil construction

In the field of construction and civil engineering, the characteristics of polyurethane have also been fully utilized. In residential, rigid foam as the best insulation material is used in walls, floors and roofs, greatly reducing the supply burden of heating and cooling, to meet the requirements of energy saving. Polyurethane coatings have excellent weather resistance and are suitable for exterior wall coatings for residential decoration. Using its waterproof, drug resistance and appropriate elasticity, it is widely used as ground coatings for hospitals, stadiums and other buildings, antirust coatings for high-rise buildings and piers, buffer materials between sleepers and rails, waterproof sealing materials for building roofs, and adhesives for wooden fabricated houses. In addition, it is also used in the construction of all-weather runways and golf courses.

7, Industrial Materials

The application of polyurethane in industrial materials is also a side that cannot be ignored. For example, the elastomer can be applied to office machines such as copiers and printers, rollers for papermaking, iron making, electroplating, etc., and can be made into various conveyor belts, hoses, films, and film materials after obtaining the best abrasion resistance through molecular design. The development of processing technology is also very active. In addition, because polyurethane has excellent thermal insulation effect and durability, it is used as thermal insulation material and thermal insulation material in LNG tanker and ground storage tank facilities. Polyurethane adhesive can be used to glue particleboard and MDF, can avoid the release of formaldehyde in the house, has attracted wide attention.