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TPU hot melt adhesive film is an important adhesive
​As an important adhesive, TPU hot melt adhesive film​ is widely used in shoes, garments, automobile interiors, medical supplies and many other fields. Due to its unique performance and characteristics, different TPU hot melt adhesive films show different advantages and applicable scenarios in applications.
2024-03-15
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TPU hot melt adhesive film is an important adhesive

    As an important adhesive, TPU hot melt adhesive film is widely used in shoes, garments, automobile interiors, medical supplies and many other fields. Due to its unique performance and characteristics, different TPU hot melt adhesive films show different advantages and applicable scenarios in applications.

    First of all, we need to understand the basic composition and characteristics of TPU hot melt adhesive film, TPU, that is, thermoplastic polyurethane, is a kind of polymer material with both plastic and rubber characteristics. It combines the elasticity of polyurethane and the processability of plastic, which makes TPU hot melt adhesive film not only has excellent adhesive force, but also has good flexibility and weather resistance. At the same time, TPU hot melt adhesive film also has good thermal stability, water resistance and chemical resistance, which makes it maintain stable performance in various environments and usage scenarios.

    In the field of shoe materials, different kinds of TPU hot melt adhesive films play important roles. For example, some TPU hot melt adhesive films with high adhesive force and fast curing are widely used for laminating shoe soles, which can form a strong adhesive force in a short time to ensure a strong combination of shoe soles and uppers. SomeTPU hot melt adhesive films with excellent flexibility and crease resistance are more suitable for laminating shoe uppers, which can ensure the adhesive force while effectively preventing creases and deformation of shoe uppers in the process of wearing.

    In the apparel field, TPU hot melt adhesive films also play an indispensable role. Some TPU hot melt adhesive films with excellent breathability and softness are widely used in the splicing and laminating of sportswear, which can ensure the aesthetics of the clothing while ensuring that the athletes can feel comfortable and at ease during the exercise. In addition, some TPU hot melt adhesive films with fireproof and waterproof properties are used to make special function garments, such as firefighters' garments and raincoats.

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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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