Conventional TPU film is generally said to be heat-resistant to 80°C
Conventional TPU film is generally said to be heat resistant to 80°C, which means that its long-term use temperature cannot exceed 80°C, otherwise the service life will be severely reduced. There is also a heat-resistant TPU film, which is said to be as high as 130°C, and there is also a TPU film modified with glass fiber, which has a high heat-resistant temperature. Polyether TPU film has good hydrolysis resistance and low temperature resistance, excellent mildew and antibacterial properties, and is very suitable for water sports products and medical products.
2023-06-02
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Conventional TPU film is generally said to be heat-resistant to 80°C
Conventional TPU film is generally said to be heat resistant to 80°C, which means that its long-term use temperature cannot exceed 80°C, otherwise the service life will be severely reduced. There is also a heat-resistant TPU film, which is said to be as high as 130°C, and there is also a TPU film modified with glass fiber, which has a high heat-resistant temperature. Polyether TPU film has good hydrolysis resistance and low temperature resistance, excellent mildew and antibacterial properties, and is very suitable for water sports products and medical products.
TPU film is made of TPU pellets by calendering, casting, film blowing, coating and other processes. At present, it is widely used in sports shoes: trademark decoration on soles and uppers, air bags, air cushions, oil bags, etc.
Chemical resistance of TPU film. TPU film is not resistant to strong solvents and strong acid-base media. At a certain temperature, alcohols, acids, and ketones will swell and degrade polyurethane elastomers. Dichloromethane, trichlorethylene, etc., solvents will swell the TPU film at room temperature.
Domestic TPU film wholesale production is mainly divided into two processes: casting and blow molding, and domestic enterprises mainly use casting technology, and there are very few enterprises using blow molding technology. The transparency of the TPU film refers to the ability of the natural color test piece to achieve intuitive clarity under different thicknesses. The thickness is often used to evaluate the effect of the transparent TPU film.
At present, TPU film products are mainly in the low-end consumer field, and the middle and high-end market is mainly occupied by Taiwan, China, European and American companies. The technology of TPU film enterprises in Taiwan, Europe and America is relatively mature, and the product performance is relatively stable. The market's high requirements for the performance of TPU film will promote the improvement of TPU film process technology and thus bring about new development in the industry, and its application prospect is very broad.
