The Application Of TPU Thin Film Is More And More Extensive.

The application of TPU thin film is more and more extensive. But how to improve the performance of TPU thin film? Tell you! Lifting technology can improve the performance of TPU thin film very well. For example, to improve the heat resistance and hydrolysis resistance of TPU films:

　　 TPU The film has been melt spinning spandex products through various processes. One step process is mainly used: polymerization of diisocyanate, polyether (ester) glycol, chain extender, auxiliaries and so on is directly added into a twin-screw reactor after metering.

The spinning process conditions and mechanical properties of finished products were improved by adding prepolymer in TPU film melt. The specific method is to melt TPU slices through a screw extruder and add diisocyanate and polyester at its outlet. Polyether glycol The prepolymer formed by the reaction is mixed evenly through a static mixer and then spun. The effect of adding prepolymer can reduce the melting temperature of TPU chips on the one hand. spinning It can be carried out at a lower temperature.

TPU film can be used for welded hollow products, fabric lamination, foam seal, protective coating and wear-resistant coating. It can not only fit with all kinds of cloth, but also produce products with clear outline and stable dimension by vacuum thermoforming. Among them, the areas with higher speed are: shoe upper lining, thermal underwear, transparent underwear, elastic band, medical ventilating tape, electronic and electrical surface protective material, optical film, etc.

TPU film and base cloth are treated by online casting and special laminating technology, and the peel strength is higher. High frequency welding is extremely resistant to impact and compression, and is suitable for more harsh conditions of work. When making medical instruments, the thickness is generally thin and 0.3mm is the majority.

TPU inflatable membrane is widely used for shoes, bags, personal protective equipment, clothing accessories, and even medical supplies. All TPU films must undergo a series of tedious and rigorous testing, and will be sent to professional departments for testing at a fixed time. In addition to the most basic hardness, softness and performance testing, there are many safety and environmental tests, such as SGS environmental protection testing, eight metals, halogen detection and so on.

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10 projects won the "textile light" China Textile Industry Federation's knitting underwear innovation contribution award. The awarding project of "textile light" science and technology award has demonstrated the new achievements of China's textile science and technology innovation to a certain extent. According to introducing, this year's award-winning project presents five characteristics:

First, taking the enterprise as the main body, the close cooperation of industry, University and research is the main position of scientific and technological innovation. Of the 135 projects awarded this year, 52 belong to the joint research results of industry, University and research, accounting for 39% of the total number of awards. Among them, the proportion of industry university research cooperation projects in the first and two prizes reached 73% and 43% respectively. Taking the enterprise as the main body, the industry university research cooperation has become an important channel for technological innovation and application, and has effectively enhanced the capability of independent innovation of enterprises.

Second, many new breakthroughs have been made in the industrialization of new textile materials. Nearly 20 achievements in this year's award-winning projects have contributed to the development of new fiber materials, indicating that the technological advantages of new textile materials continue to be maintained.

Third, the transformation of traditional industries by high and new technologies has made obvious achievements in promoting product upgrading. High and new technologies transform traditional industries, promote product upgrading, and increase the added value of products.

Fourth, the technological innovation and development of energy saving and emission reduction are fruitful. In this year's award-winning projects, more than 20 projects involve energy saving and emission reduction technologies, accounting for nearly 19%.

Fifth, technological standards and soft science achievements have new bright spots. In this year's awards, there are 8 soft science projects and 15 standard projects. This highlights the achievements and international advantages of soft science research, functional testing and evaluation, fiber quantitative analysis and hazardous substances detection in textile field in recent years.