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TPU film, its application range is becoming more and more extensive. But how to make the performance of TPU film improved? Tell you! Enhancement technology can be very good to improve the performance of TPU film. For example, the method to improve the heat resistance and hydrolysis resistance of TPU film:
　　TPU film through a variety of processes to get melt-spun spandex products. The main one-step process production: diisocyanate, polyether (ester) diol, chain extender, additives, etc. After measurement, directly added to the twin-screw reactor polymerization.

　　The method of adding prepolymer in the melt of TPU film is used to improve the spinning processing conditions and the mechanical properties of the finished product. Specific method is the TPU slices by screw extruder melt, in its exit to join by the diisocyanate and polyester or polyether glycol reaction from the prepolymer, the static mixer uniform mixing and then spinning. The role of adding prepolymer on the one hand can reduce the melting temperature of TPU chips, so that spinning can be carried out at a lower temperature.

　　TPU film can be used for welding-type hollow products, fabric lamination, foam material sealing, protective coatings and wear-resistant coatings, etc., not only can be laminated with a variety of fabrics, but also vacuum thermoforming method to produce a clear contour, dimensional stability of the product; which increases the speed of the field of the more rapid: upper lining of shoes, thermal underwear, transparent underwear, elastic bands, medical use of breathable adhesive tapes, electronic and electrical surface protection materials, Optical film, etc.

　　TPU film and base cloth are processed through online casting and special lamination technology, with higher peel strength. High-frequency welding is resistant to impact and pressure, suitable for working conditions more demanding environment (military, security products mostly). Do medical equipment, the general thickness is thin, to 0.3mm mostly.

　　TPU inflatable film is very versatile, often used in shoes and bags, personal protective equipment, clothing accessories, and even medical supplies. All TPU films are subject to a series of cumbersome and rigorous testing, and will be sent to a fixed time each year to the professional sector testing, in addition to the basic hardness, softness, performance testing, there are many safety and environmental protection tests, such as SGS environmental testing, eight metals, and halogen testing and so on.