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TPU films need to pay attention to two aspects
The deformation rebound of TPU film is mainly the property of TPU film to return immediately after the deformation applied by external force. deformation rate and rebound of TPU film TPU film deformation and rebound are the degree of deformation of the sample per unit volume under the action of vertical pressure, the speed and degree of rebound after releasing the pressure, judging the ability of the material to resist pressure. With the in-depth research and development of TPU film products, as well as the improvement of the technical level of TPU film industry, the application field of TPU film will be expanded.
2022-11-11
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TPU films need to pay attention to two aspects

    The deformation rebound of TPU film is mainly the property of TPU film to return immediately after the deformation applied by external force. deformation rate and rebound of TPU film TPU film deformation and rebound are the degree of deformation of the sample per unit volume under the action of vertical pressure, the speed and degree of rebound after releasing the pressure, judging the ability of the material to resist pressure. With the in-depth research and development of TPU film products, as well as the improvement of the technical level of TPU film industry, the application field of TPU film will be expanded.

    TPU film needs to pay attention to two aspects

    First, the chemical resistance of TPU film, TPU film is not resistant to strong polar solvents and strong acid and alkali media, at a certain temperature, alcohols, acids, ketones will make polyurethane elastomer swelling and degradation. Solvents such as dichloromethane and trichloroethylene can cause TPU film to swell at room temperature.

    On the other hand, the TPU film is the high temperature resistance, TPU film can be in the - 30 degrees cold elasticity does not change the toughness of the same, but can not withstand high temperatures. TPU film endogenous heat, high temperature resistance performance in general, the normal use of the temperature range of - 30 ℃ to 80 ℃, so TPU film should not be used in more than 130 ℃ for a long time.

    TPU film can be used for more than just apparel. Because it has a wide range of hardness (60HA-85HD), wear resistance, oil resistance, transparency, good elasticity, etc., and is recognized as a new polymer material with green and excellent performance, new technologies, new products and new uses related to TPU film are constantly being developed and put on the market. TPU films can be seen in almost all industries, such as pipes, films and sheets, cables, automobiles, construction, medicine and health, national defense, sports and leisure, as well as shoes, bags and other functional outdoor equipment, etc. The development prospect is bright.

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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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