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TPU Application is More and More Widely

TPU thin film, its application is more and more widely. But how to improve the performance of TPU film? To tell you that the lifting technology can be very good to improve the performance of TPU film. Method for improving heat resistance and hydrolysis resistance of TPU films:

TPU film after a variety of processes to obtain melt spinning spandex products. It is mainly used to produce one step process: the diisocyanate, polyether (ester) diol, chain extender, auxiliary agent, etc., are directly added into the twin screw reactor after being measured.

The process conditions and the mechanical properties of the finished products were improved by adding prepolymer into the TPU film. The method comprises the following steps: the TPU section is melted by a screw extruder, and the prepolymer which is formed by the reaction of diisocyanate and polyester or polyether diol is added at the outlet of the screw extruder, and then is uniformly mixed by a static mixer and then spun. On the one hand, the effect of prepolymer can reduce the melting temperature of TPU slices, and the spinning can be carried out at lower temperature.

TPU films can be used for welding hollow products, laminated fabric, foam sealing, protective coating and wear resistant coating, not only can fit all kinds of fabrics, can also be used in the production of vacuum thermoforming method clear outline, size and stability of the products; which increased faster in the field: shoe lining, thermal underwear, transparent underwear, elastic tape, medical tape, electronic breathable surface protection materials, optical thin film.

TPU films and substrates were treated with online casting and special laminating techniques, and the peel strength was higher. High frequency welding after extremely resistant to shock and oppression, suitable working conditions more severe environment (military, security products). When the thickness of the medical device is usually thin, mostly 0.3mm.

TPU inflatable thin film is widely used, often used in shoes and bags, personal protective equipment, clothing accessories, and even medical supplies. All TPU films must go through a series of complicated and rigorous testing, and every year at a fixed time and sent to the professional departments, in addition to the most basic hardness and softness, there are a lot of safety performance testing, environmental testing, environmental testing such as SGS, eight metal and halogen detection and so on.


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