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TPU hot melt adhesive film​​ is an adhesive
2022-06-21
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TPU hot melt adhesive film is an adhesive

    TPU hot melt adhesive film is in great demand in the industry, but as a new material with high viscosity, we must first understand TPU hot melt adhesive film.

    TPU hot melt adhesive film is essentially composed of TPU plastic particles, the Chinese name is polyurethane, which is called "same-sex attraction". It is easier to compound TPU film and TPU hot melt adhesive film. TPU hot melt adhesive film is a hot melt adhesive film that can be cured at room temperature. The cast TPU hot melt adhesive film has stable performance and is not sticky at room temperature! It needs to be heated, melted and cooled to achieve the bonding effect.

     When we choose TPU hot melt adhesive film to bond this material, we must consider this temperature condition. If the melting temperature of the selected TPU hot melt adhesive film is similar to the temperature resistance of the material to be adhered, the material will become soft even if the TPU hot melt adhesive film is formed. Shrinkage and deformation, so don't say it's bonding, the material will be scrapped directly.

    The main method of classification of TPU hot melt adhesive films is still based on the adhesive material. TPU hot melt adhesive film has two kinds of high temperature and low temperature, and the width and thickness are used to select the size of specific specifications.

    TPU hot melt adhesive film is widely used, and it always appears in unexpected places. Briefly list some usage scenarios of TPU hot melt adhesive film.

    (a) TPU hot melt adhesive film is also required for the production of shoe uppers;

    (b) Automotive interiors require composite TPU hot melt adhesive films;

    (c) It is necessary to wear thickened velvet warm pants composite film with TPU hot melt adhesive film in winter;

    The above is the whole content of "TPU hot melt adhesive film is a kind of glue". In general, TPU hot melt adhesive films of various specifications can be used in the bonding of luggage, shoes, and clothing products, and have the properties of strong adhesion, good effect, cost saving, and environmental protection. TPU hot melt adhesive film has some common characteristics of TPU materials, such as softness, cold resistance and waterproof. If there are a variety of TPU hot melt adhesive films to choose from, please choose the most cost-effective TPU hot melt adhesive film. When meeting your bonding requirements, choose the thinnest TPU hotmelt film available.

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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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