Superior aspects of TPU film performance
TPU film is increasingly popular because of its superior performance and environmental protection concept. At present, TPU film can be a substitute for PVC wherever PVC is used. TPU film can not only be laminated with various fabrics, but can also be vacuum thermoformed to produce products with clear contours and stable dimensions. With the increasing awareness of environmental protection in China, the application of TPU film is becoming more and more extensive. Among them, the areas that are increasing rapidly are: shoe lining, thermal underwear, transparent underwear, transparent shoulder straps, elastic tapes and breathable tapes for medical use.
2022-11-21
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Superior aspects of TPU film performance
TPU film is increasingly popular because of its superior performance and environmental protection concept. At present, TPU film can be a substitute for PVC wherever PVC is used. TPU film can not only be laminated with various fabrics, but can also be vacuum thermoformed to produce products with clear contours and stable dimensions. With the increasing awareness of environmental protection in China, the application of TPU film is becoming more and more extensive. Among them, the areas that are increasing rapidly are: shoe lining, thermal underwear, transparent underwear, transparent shoulder straps, elastic tapes and breathable tapes for medical use.
First of all, it is the chemical resistance of TPU film, which is not resistant to strong polar solvents and strong acid and alkali media, and at a certain temperature, alcohols, acids and ketones can cause the polyurethane elastomer to swell and degrade. Solvents such as dichloromethane and trichloroethylene can cause TPU to swell at room temperature.
On the other hand, the TPU film is the high temperature resistance, TPU film can be in - 30 degrees cold elasticity does not change the toughness of the same, but can not withstand high temperatures. TPU film endogenous heat, high-temperature performance in general, the normal temperature range of -30 ℃ to 80 ℃, so TPU film should not be used in more than 120 ℃ for a long time.
The third thing to note is the current domestic TPU film market, that is, the TPU raw material dependence on foreign countries.
TPU film has a wide range of uses, often used for shoes and bags, personal protective equipment, clothing accessories, and even medical supplies. All TPU films must undergo a series of tedious and strict tests, and will be sent to professional departments at a fixed time every year for testing, in addition to the most basic hardness, softness, performance tests, and many safety and environmental tests, such as SGS environmental testing, eight metals, and halogen testing, etc.
