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TPU hot melt adhesive film can be divided into different types
​TPU hot melt adhesive film is a film based on thermoplastic polyurethane (TPU) material. It can be melt-bonded by heating and is widely used for bonding and fixing various materials. According to different classification methods,TPU hot melt adhesive films can be divided into different types.
2023-11-23
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TPU hot melt adhesive film can be divided into different types

    TPU hot melt adhesive film is a film based on thermoplastic polyurethane (TPU) material. It can be melt-bonded by heating and is widely used for bonding and fixing various materials. According to different classification methods,TPU hot melt adhesive films can be divided into different types.

    According to the use temperature, TPU hot melt adhesive film can be divided into high temperature type and low temperature type. High temperature TPU hot melt adhesive film can be used at higher temperatures and is suitable for bonding and fixing materials with good high temperature resistance. The low-temperature TPU hot melt adhesive film can be used at lower temperatures and is suitable for bonding and fixing materials that are not resistant to high temperatures.

    According to different forms, TPU hot melt adhesive film can be divided into strip, granular and powder forms. Strip-shaped TPU hot melt adhesive film is relatively common. It has the advantages of easy use, high bonding strength, and good weather resistance. It is widely used for bonding and fixing various materials. Granular and powdered TPU hot melt adhesive films are suitable for use in some special occasions.

    Concept and characteristics of TPU hot melt adhesive film

    TPU hot melt adhesive film is a film made of thermoplastic polyurethane (TPU) material. It can be melt-bonded by heating and maintain the form of a solid film at room temperature. TPU hot melt adhesive film has the following characteristics:

    1. High bonding strength: TPU hot melt adhesive film has high bonding strength, can bond various materials quickly and effectively, and maintains stability after bonding.

    2. Good weather resistance: TPU hot melt adhesive film has good weather resistance and can maintain stable performance in different environments.

    3. Wide range of applications: TPU hot melt adhesive film can be used for bonding and fixing various materials, such as plastics, metals, glass, fibers, etc.

    4. Environmentally friendly and non-toxic: TPU hot melt adhesive film does not contain toxic substances, meets environmental protection requirements, and can be used with confidence.

    5. Easy to operate: TPU hot melt adhesive film only needs a simple heating operation before it can be bonded and fixed, and the operation is quick and easy.

    In short, TPU hot melt adhesive film is an efficient, environmentally friendly, and durable adhesive material that is widely used in various fields.

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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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