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The excellent performance and application of TPU hot melt adhesive film
​TPU hot melt adhesive film, as a kind of thermoplastic polyurethane hot melt adhesive film, has been widely used in many fields by virtue of its unique performance characteristics. Among them, its high bonding strength and good temperature resistance are one of its most prominent features.
2024-06-03
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The excellent performance and application of TPU hot melt adhesive film

    TPU hot melt adhesive film, as a kind of thermoplastic polyurethane hot melt adhesive film, has been widely used in many fields by virtue of its unique performance characteristics. Among them, its high bonding strength and good temperature resistance are one of its most prominent features.

    High bonding strength: TPU hot melt adhesive film has excellent adhesive force, and can form a strong bond with the bonded material in a short time. This high bonding strength makes it possible to maintain a stable bonding effect in a variety of complex environments, ensuring a close connection between the bonded materials.

    Good temperature resistance: TPU hot melt adhesive film can maintain stable bonding performance in a wide temperature range. Whether it is high or low temperature environment, it can maintain its original adhesive force, there will be no performance degradation or failure. This feature makes it especially suitable for areas that need to withstand high temperature and high humidity environments, such as automotive interiors, sports shoes materials, etc.

    Good elasticity and weather resistance: In addition to the above two features, TPU hot melt adhesive film also has good elasticity and weather resistance. Its excellent elasticity makes it able to adapt to the deformation and expansion of different materials, thus ensuring the durability of the bonding effect. Weather resistance means that it can be used for a long time in various harsh outdoor environments without aging, cracking and other problems.

    Application areas:

    Automotive interior: TPU hot melt adhesive film is widely used in the field of automotive interior. It can be used for bonding seats, instrument panels, door panels and other parts to ensure the beauty and stability of the interior. At the same time, due to its good temperature resistance and strong weather resistance, it can also adapt to the harsh environment of high temperature, high humidity and direct sunlight inside the car.

    Sports shoe materials: In the field of sports shoe materials, TPU hot melt adhesive film also plays an important role. It can be used to bond soles and uppers to enhance the integrity and comfort of shoes. At the same time, its high bonding strength and temperature resistance also ensure the stability and durability of the shoes during long time wearing and sports.

    Other fields: In addition to the above two fields, TPU hot melt adhesive film is also widely used in electronic products, medical devices, textiles and many other fields. In all these fields, it provides ideal bonding solutions for products with its excellent performance characteristics.

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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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