What Are the Pros and Cons of Urethane Bumpers?

This product is a synthetic material with excellent performance. It has the advantages of high specific strength and small thermal conductivity. It is mainly used as thermal insulation material, and secondly as structural material.

Polyurethane insulation

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Product composition and characteristics

Strong rigid polyurethane foam for cold storage

When skin touches

Polyurethane insulation material is currently the best performing insulation material in the world. Rigid polyurethane has excellent properties such as light weight, low thermal conductivity, good heat resistance, aging resistance, easy adhesion to other substrates, and no melting droplets during combustion. , Floor, doors and windows as heat insulation materials. About 49% of the building insulation materials in Europe and the United States and other developed countries are polyurethane materials, but in China this proportion is less than 10%.

As a high-performance polymer material, polyurethane insulation material has become the fifth largest plastic after polyethylene, polyvinyl chloride, polypropylene, and polystyrene, with a total global output of more than 10 million tons per year. In recent years, China's polyurethane industry has achieved considerable development, and has been widely used in refrigerators, containers, leather, shoes and textiles; and this vigorous promotion in areas such as building energy conservation will create huge development space for our polyurethane industry .

I. Applications in Daily Life

Furniture industry applications

1. paint, 2. paint, 3. adhesive, 4. sofa, 5. mattress, 6. seat armrest

Home appliance applications

1. Electrical insulation paint 2. Wire and cable sheath 3. Insulation layers for refrigerators, freezers, disinfection cabinets, water heaters, etc. 4. Waterproof potting glue for electronic components of washing machines

Construction industry applications

1. Sealant, 2. Adhesive, 3. Roof waterproof insulation layer, 4. Cold storage insulation, 5. Interior and exterior wall coatings, 6. Floor paint, 7. Synthetic wood, 8. Runway, 9. Water-proof plugging agent 10 Plastic floor

Transportation industry applications

1. Aircraft and automobile interior parts seat, armrest, headrest, door inner panel, instrument panel, steering wheel, bumper, shock pad, fender 2. Carpet lining, paint 3. Insulation parts, pipes .Gasket 5.Slip chain

Shoes and leather industry applications

1. Shoe inner and outsole 2. Adhesive 3. Leather finishing agent 4. Artificial leather and synthetic leather coating

Applications in the sports industry

Plastic sports grounds (including basketball, volleyball, badminton, tennis courts, running track laying), sportswear (dance clothes, swimwear, dance clothes); sports shoes, scooters

Second, the specific application of various polyurethane materials

1.PU Flexible PU

Pads-such as seats, sofas, mattresses, etc. Polyurethane soft foam is a very ideal pad material, and the pad is also the application area with the largest amount of soft foam;

Sound-absorbing materialopen-cell polyurethane soft foam has good sound-absorbing and shock-absorbing functions and can be used as indoor sound insulation materials;

Fabric composites-shoulder pads, bra sponges, cotton pads; toys

2.PU rigid foam Rigid PU

Freezing and refrigerating equipment-such as refrigerators, freezers, cold storage, refrigerated trucks, etc. Polyurethane rigid foam is the most ideal thermal insulation material for freezing and refrigerating equipment;

Industrial equipment insulation-such as storage tanks, pipes, etc .;

Construction materialsIn developed countries in Europe and the United States, rigid polyurethane foam used in construction accounts for about 70% of the total consumption of rigid foam, which is more than double the amount of rigid foam such as refrigerators and freezers; in China, the application of rigid foam in the construction industry has not yet As common as developed western countries, the potential for development is very large;

Transportation industry-such as car roof, interior parts (steering wheel, dashboard), etc .;

Imitation woodHigh-density (density 300 ~ 700kg / m3) polyurethane rigid foam or glass fiber reinforced rigid foam is a structural foam plastic, also known as imitation wood. It has high strength, good toughness, dense and tough skin, simple forming process, and production. Features such as high efficiency, strength can be higher than natural wood, density can be lower than natural wood, can be used as a variety of high-end products instead of wood.

Encapsulation materials-such as waterproof grouting materials, plugging materials, roof waterproofing materials

Flower industryPU flower pot, flower arrangement mud, etc.

3.PU Semi-rigid PU

Energy-absorbing foam-Energy-absorbing foam has excellent shock absorption, cushioning performance, good compression load resistance and deformation recovery performance. Its most typical application is for the preparation of automobile bumpers;

Integral Skin Foamused to prepare softening internal functional parts and interior trim parts such as automobile steering wheels, armrests, and headrests. Self-skinning foam products usually adopt Reaction Injection Moulding (RIM) processing technology;

Microcellular elastomers-The most typical application of polyurethane microcellular elastomers is in the footwear industry.

4. Polyurethane Elastomers (PU Elastomers)

Casting polyurethane elastomer (referred to as CPU)-it is the most widely used and most productive type of polyurethane elastomer;

Thermoplastic polyurethane elastomer (referred to as TPU)-thermoplastic polyurethane elastomer accounts for about 25% of the total polyurethane elastomer;

Compounded polyurethane elastomer (referred to as MPU)-accounts for about 10% of the total polyurethane elastomer.

Solid tires; printing and conveying rubber rollers; profiled rubber rollers; oil seals, gasket ball joints, bushing bearings; O-rings; support pads; soles, rear roots, toe caps; linings; gears; The hardness range of the body is different.

Application in mining, metallurgy and other industries-sieve plate, shaker, etc.

Applications in the machinery industry-rubber rollers, tapes, seals, etc .;

Applications in the automotive industry-tires, seals, etc .;

Application in light industry-polyurethane shoe sole, polyurethane synthetic leather, polyurethane fiber;

Applications in the construction industry-waterproof materials, paving materials, potting materials, etc.