TPU material mainly has the following several aspects of the application:

1, thin film and sheet

Polyurethane film is mainly made by extrusion, rolling and molding process to produce, thickness from a few microns to several millimeters, and the pigment is added into the system to a variety of colors of the TPU elastic belt products. Due to the characteristics of the molecular structure of polyurethane, people can through the adjustment of polyurethane block composition ratio, the change of the elasticity of the, hardness and hydrophilic, so polyurethane film with polyurethane elastomer as has the excellence of high tension, high strength, high toughness and resistance to aging properties. At the same time, it has excellent biological and blood compatibility and resistance to chemicals, widely used and medical and health, high-grade textile fabrics, industrial multiple fields.

Polyether TPU can also be used in the production of waterproof breathable breathable film, with environmental protection, ventilation, waterproof function.TPU film thickness is from a few microns to several millimeters, has high. In. A low moisture permeable membrane. It is widely used in packaging, clothing fitting shoulder straps, shoes in a variety of disciplines. Such as shoes, hiking shoes, snowshoeing, golf shoes, skates, etc. footwear fabric and lining, TPU film of air permeability and low temperature flexibility can give other footwear materials can not be compared with the comfort.

The health sector is mainly used thermoplastic polyurethane film, such as surgical gowns, medical gloves, medical mattress, ice bag, bandages, plasma, condoms, wound dressing, artificial organs and other aspects. The polyurethane waterproof breathable medical gloves can provide excellent water vapor permeability, strain and comfort. Traditional wound dressing has many the disadvantages of microporous polyurethane and hydrophilic membrane can make the wound dressing has good air permeability, absorption function, good biological compatibility of polyurethane can be used as transdermal drug dressing, can effectively block the drug diffusion of active components unnecessary, and can guarantee the active ingredients according to a certain rate effect on the skin, at home and abroad has been used in Daliang, is expected later we will have a huge market.

Polyurethane film is optically transparent, soft, stretch, durability, easy processing and waterproof and breathable. As a premium or special textile fabrics in everyday life is widely used. The polyurethane film as a medical fabric, breathable, anti bacteria, anti liquid through, long-term washing and steam sterilization conditions does not degrade and the price is reasonable, etc.. The earliest polyurethane film and coating first application in agriculture, construction, forestry, mountain and ocean and air rescue and other outdoor workers clothing after gradually extended to the footwear.

At present, the polyurethane in the footwear application is extremely extensive, such as all kinds of shoes especially sports shoes or special function shoes fabric and lining material; in recent years, the polyurethane film is more and more applied to the production of clothing and fashion, the clothing made of breathable polyurethane film material not only has the respiratory function, but also can anti electrostatic.

Special TPU can also meet the requirements of the German health board for food contact materials, as well as the U.S. Food and Drug Administration of the relevant requirements.

2, TPU composite leather

Polyurethane film used in the production of composite fabric, as home apparel fabrics, at room temperature can play a protective role, in the above room temperature can have good moisture permeability.

In the industrial field of polyurethane composite leather is often used to make fire, heat insulation, insulation materials, aircraft parts and decoration, auto parts and waterproof stickers, compression seals, transmission belt, insulation board, safety and bullet proof glass. Such as the US made products for the automotive care film, used for the engine cover front, coated automobile front and rear bumpers, door panels, door handles, etc., to avoid being struck the rock, friction paint to protect the car surface.

TPU composite leather generally have good optical transparency and light stability, many manufacturers in China with imported polyurethane film packing and protection inside and outside the car. Developed in Britain, the A for aircraft bulletproof box car bulletproof glass is multilayer poly urethane film composite. In addition, with polyurethane based plastic film composite leather is also used for die & mold industry, metal and weapons of anti-corrosion.

3, TPU pipe

TPU can be made into many different types of pipe. Polyether ester and polyether TPU has high elongation and good resistance to hydrolysis and microbial resistance and excellent mechanical properties (tensile strength and tearing strength) and a series of advantages, so it can be used on fire hose lining. The fire tube than the traditional fire tube light, easier to operate.

TPU do the inner tube in the transport sand, stone size very useful, its good wear resistance, puncture resistance of the pipe life is relatively longer, more material saving.

TPU hose has a soft, good tensile strength, impact strength and high temperature resistance, so in the domestic, TPU hose used for aircraft, tanks, cars, motorcycles, machine tools, such as gas, oil hose.

4, TPU shoes

Due to the wear resistance of TPU, puncture resistance, resistance to longitudinal bending strength and low temperature impact strength are relatively high, therefore, commonly used in the outer layers of ski boots.

TPU resistance to tearing and resistance to crack propagation is plastic material best. Such as ski boots Shao hardness 50D~66D, Young's modulus 100~600MPa TPU, and according to the requirement on the performance of the different parts of the selected suitable TPU grades. Skating shoes are also commonly used TPU production, because of TPU resistance low temperature impact strength high.

Many sports shoes, the soles are made by TPU material, especially application in soccer shoes are the most common. Polyester TPU with common shore hardness 85A~90A, because it has very excellent wear resistance and cutting resistance. And TPU material can be very soft and play good, shoe lining and insole comfort will be higher than other materials. Therefore, in sports shoes, casual shoes in use rate is very high.

5, auto parts

Because TPU has good elasticity, cutting resistance, weather resistance, oil resistance, so it is suitable for automobile industry, has become one of the largest amount of plastic on the car.

According to the automobile component different TPU to foams, elastomers, adhesives, etc. different morphology and properties of to adapt to the requirements, such as TPU foam with the change of the recipe, with light weight, heat insulation, good elasticity, good comfort, good low temperature performance, durable, safety and suction shock higher, its superiority is compared to the other materials can not.

BASF has developed a for automotive interior trim of TPU skin material Elastoskin for instrument panel and door panel trim surface layer, its performance is better than the polyvinyl chloride (PVC) and other skin material, cost than PVC envelop material lower, PVC ideal substitute.TPU can also used in automobile and other components, such as bumpers, skeleton material, instrument panel, cushion and other parts.

A polyurethane structure reflect the molding (SRIM) technology is widely used in Europe and the United States has, can effectively reduce the parts quality. The process is: first pre moulded skin, the glass fiber mat is placed in a mould, then injected into polyurethane resin, curing molding (micro foaming). This process can produce a variety of automobile accessories, such as door trim panel, coat rack, decorated the advantages of dashboard framework and ceiling bone.SRIM can according to the mechanical properties of the parts, flexible design wall thickness, arc or the strengthening ribs.

Compared with the injection molding products, SRIM has a lower internal noise, but also improve the physical properties of the product, such as lower density, higher elongation, is not easy to produce odor and mildew problems, and create a comfortable car environment.

6, medical and health

Biocompatibility of TPU and the human skin is very high, polyether TPU and human blood and tissue compatibility is good, so it can be with TPU tube to make blood transfusion tube, and even the development of the TPU micropore type, biodegradation, flexible, and blood compatibility of artificial blood vessel.

Now with the development of medicine, now TPU products because of its excellent performance was also used to do artificial organs, the products including artificial heart valves, artificial lung, artificial skin, burn dressing, bone cements, heart pacemakers insulated wire, suture, various kinds of plywood liquid guide pipe, artificial blood vessel, tracheal intubation dental materials, family planning activities.
For example, the use of polyester TPU copolymer made body prosthesis and the tissue of the human body have very good compatibility. Such as polyester - MDI foaming of Pu microcellular elastomer can make artificial limbs; water foamed TPU can make artificial limb jacket, wear resistance than the latex sheath; the upper limb using poly polyether polyols and TDI one step method of microporous elastomer and wear resistance and anti flexing of the palm and fingers to polyester polyol and MDI as the main raw materials by semi pre polymerization method was used to prepare.

The TPU material to replace the original PVC coated latex glove material, eliminate most of the noise, and the electric hand power.
Patients with fracture of general fixed plaster bandage, but gypsum has large weight, low strength, permeability etc, research at home and abroad researchers are devoted to orthopaedic materials more ideal, which made by poly chloric ester material bandage can avoid the complication caused by damp, but also has characteristics of plaster bandage, and more plaster bandage is more strong, its strength is 20 times of the plaster bandage, can withstand the force and deformation of the body muscle strength, each layer between the adhesive bandage good, long-term bandaging material deformation, abrasion resistance, relatively low density, have certain permeability, can pass through the skin water evaporation. Can prevent skin itching, odor and bacterial infection, so as to avoid the occurrence of skin atrophy, stable material structure, erosion, not afraid of water and liquid will not burn, molding conditions are not harsh, the use scope, operation method and plaster bandage phase Like, does not change the traditional clinical usage and does not require any special equipment and instruments, easy operation, sanitary use, fast curing speed, lightweight, thin, firm and tough, is not easy to make inflammation of the wound, has good air permeability, strong rigidity, resistant to flooding, through the characteristics of X-ray, in the treatment of orthopedic trauma and orthopedic treatment, can be used as a fixed material, its comprehensive performance is better than plaster bandage.

TPU material because of its permeability, high elasticity, high biocompatibility become the best human tissue substitute. With medical advances, TPU will be in the medical and health aspects of a play.

7, TPU adhesive

TPU adhesive belongs to a kind of polyurethane adhesive. Now commonly used in nylon, polyester and polyurethane fabric and leather surface treatment, with chemical resistance, UV resistance, hydrolysis resistance, good low temperature flexibility, bending fatigue good performance.

TPU adhesive agent with excellent rubber characteristics, can adapt to different thermal expansion coefficient of the substrate binding, it between the substrate formed with soft and hard transition layer, not only strong adhesion. At the same time, also has excellent buffering, shock absorption function.

TPU adhesive of low and ultra low temperature performance than all other types of adhesive.TPU adhesive according to different purposes, can divide for polyurethane adhesives for automobiles, wood polyurethane adhesive, shoes polyurethane adhesive, packaging polyurethane adhesive, building polyurethane adhesive, ink with polyurethane adhesive and book binding with polyurethane adhesive, in daily life and industrial production and play an important role.

TPU adhesive can also paint and solvent mixed into paint and ink, can be sprayed to different substrates.

Water based polyurethane adhesives with low volatile organic compounds content, low or no environmental pollution, non flammable and so on, is the focus of the development direction of polyurethane adhesives.

8, cable and wire

High and low temperature resistance is the key to the performance of the cable, therefore TPU is used to make higher cable covering material. Ultra high hardness, flexibility at low temperature, wear resistance, environmental and climate resistance, these excellent mechanical and physical properties of extended cable durability and service life.
Special terrain with cable, fiber optic cable, cable seismic, protection of aircraft cable set are generally TPU materials, due to the resistivity greater than 1012 - cm, and has the advantages of wear resistance, hydrolysis resistance, weather resistance, resistance to flexure, high hardness etc. advantages.TPU material good insulation, and good for wire protection, safe to use, not easy to cause fire accident.

9, the application of TPU in textile industry

Industrial mainly by melt spinning spandex. The excellent properties of polyurethane: prominent high resilience and polyurethane high resilience is the all elastic fiber can not be compared, its elongation at break of more than 400%, up to a maximum of 800%, even in 300% tensile deformation, springback reply rate is above 95%; good tensile strength, tearing strength; weather resistance, strong capacity of resisting ultraviolet irradiation; chemical resistance, resistant to washing; and dye affinity is good.

Spandex has been widely used in textiles, is a new kind of textile material with high added value.

Spandex is generally not used alone, but a small amount of incorporation of fabric, the use of the form, mainly four: bare yarn, core spun yarn, covered yarn, ply yarn. Such as stockings, swimsuit, dance clothing, Lycra, cotton coated spandex), clothing and other, in the traditional textiles, just add less than 10% of the amount of spandex, you can make the grade of traditional fabric is greatly improved, showing a soft, comfortable, beautiful, elegant style.

Such as in recent years in fashion circles popular Lycra fabric. Leica is a product of the world's largest integrated fibers and polymers INVISTA, INVISTA in the field of spandex occupy market monopoly status, Lycra is almost synonymous with all spandex yarn. It completely replaces the traditional elastic rubber band line, in the gym suit, swimming suit these special clothing, Lycra almost become essential elements.

It can make people curve revealed that stretching freely and without oppressive feeling. Leica not only in daily clothing in a wide range of uses, but also fashion designer manufacturing a kaleidoscope of popular pets. Leica therefore was excited the people known as the magic of fiber.

Designers in talking about their work, like said Lycra. Perhaps, not only with the Lycra dress is very fashionable, the word itself with a strong color fashion.

Along with the people of fabric put forward new requirements, such as light weight, wearing comfortable fit, soft texture, low denier spandex fabric in the synthetic fiber fabric material accounted for the proportion of more and more. Also useful spandex naked yarn and spandex and other fibers with twisting and twisting wire is mainly used for all kinds of warp knitting, weft knitted fabric, woven fabric and elastic fabric, and so on.

10, the application of TPU aerospace industry

China TPU as raw material by arresting net made of extrusion method, has high strength, light weight, good elasticity, not easy to rotten, tear resistant, low temperature resistant, oil resistant properties etc. excellent characteristics.

In TPU fluorescent material is made of physical light at night. Its performance are better than the used of woven nylon net body. Such as woven nylon vertical belt, the tensile strength 139.2MPa, made by TPU vertical belt tensile strength reached 186.3MPa. therefore, TPU do block the network more effective. Made by TPU aircraft thin-wall tank has the advantages of simple process, thin wall, light weight, is by long life.

TPU has high radiation resistance, suitable for making space flight personnel X rays and atomic work personnel protective clothing. With the continuous development of the aviation industry, on aircraft maintenance technology demand is also a corresponding increase, the requirements will be more stringent, TPU materials with superior properties, so that it has more value in use.

11, the application of TPU in other industries

TPU material in refrigerator manufacturing, transportation, civil construction, mechanical and electrical, petroleum chemical industry, mining machinery, and other industries are widely used. It has other plastic materials by the incomparable high strength, good toughness, wear resistance, cold resistance, oil resistance, water and aging resistant, weather resistant characteristics, also has high waterproof, breathable, windproof, cold, antibacterial, antifungal, warm, anti ultraviolet radiation and energy release and so on many unique features, made into a variety of parts, machine protection shell.TPU also can substitute any other Pu plastic box, PVC plastic.