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The physical properties of TPU film are very outstanding
​Due to the unique microstructure of the soft segment and hard segment of TPU film, the macro physical properties of the material are very outstanding, mainly in the following aspects:
2022-12-15
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The physical properties of TPU film are very outstanding

    Due to the unique microstructure of the soft segment and hard segment of TPU film, the macro physical properties of the material are very outstanding, mainly in the following aspects:

    1. TPU film has good ductility and high tensile strength;

    2. Excellent elastic recovery and good flexibility;

    3. Good waterproof and moisture permeability;

    4. Good biological tissue compatibility;

    5. TPU film has excellent wear resistance, bending resistance and low temperature resistance;

    6. Excellent oil resistance and ultraviolet radiation resistance;

    7. Good post-processing performance;

    8. Meet environmental requirements.

    Biomedical performance

    TPU film material has an excellent biocompatibility, non-toxic, non allergic, non local irritation, and non pyrogenicity. Therefore, it can be widely used in social medical, health and other related enterprise product development, as well as student sports and protection equipment.

    Environmentally friendly and degradable

    TPU film will not produce air pollution when burning, and can be biodegraded in soil within 3-5 years. According to online information, polyester series will be completely hydrolyzed after soaking in 50 ℃ water for half a year or 70 ℃ water for 3 weeks or 100 ℃ water for 3-4 days.

    Wide range of applications

    TPU film can be manufactured by vacuum or heat treatment, while maintaining its flexibility and performance. This material can also be welded into irregular shapes.

    TPU film technology has been widely studied and applied in the society: shoe materials, ready to wear, inflatable structural toys, water and underwater sports teaching equipment, medical equipment and equipment, fitness equipment, car seat materials, umbrellas, leather cases, leather bags, etc.

    TPU film is a waterproof and breathable film, mainly used for composite knitted fabrics, wool clothing and outdoor products. Very comfortable. TPU film is a single layer film. Its basic principle is that water can penetrate the film and flow. Water is first absorbed by the inner side of the film, then diffused into the film through water vapor, and finally evaporated from the fabric surface.

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TPU hot melt adhesive film vs anaerobic adhesive: "Scene flexibility" difference in automotive interior bonding
2025-09-11
​From the perspective of curing conditions, TPU hot melt adhesive film does not need to rely on special environments, while anaerobic adhesives are severely restricted by "auerobicity". The curing principle of anaerobic glue is to undergo polymerization under conditions of lack of oxygen and catalyzed by metal ions (such as iron and copper). If it is in an environment where air circulation or metal substrates are not available, the curing speed will be greatly slowed down or even unable to cure. In automotive interiors, most bonding scenarios are "open" (such as bonding the door panel skin to PP substrate, and the ceiling fabric to the sponge), the air can freely contact the bonding surface, and the substrate is mostly non-metallic (PP, ABS, fabric, etc.), lacking metal ion catalysis, and additional catalyst is required when using anaerobic glue, and the curing time is as long as several hours, which is difficult to meet the needs of industrial production. The TPU hot melt adhesive film only needs to be melted by heating (120-160℃) and can be cured after pressurization and cooling. It does not need to rely on the ambient oxygen concentration or the base material. It can be cured stably in open or closed bonding scenarios, and the curing time only takes a few dozen seconds to a few minutes, adapting to the fast-paced needs of the interior production line.
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