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TPU film manufacturers talk about the characteristics of TPU film
TPU material is a high-polar polymer material with low affinity with non-polar mineral oil. Polyester TPU film has good oil resistance, small change in oil amount, and tensile strength is also higher than the original value. It should be noted that when the mineral oil contains a small amount of water, the physical properties of the TPU film will be negatively affected to varying degrees.
2022-03-21
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TPU film manufacturers talk about the characteristics of TPU film

TPU material is a high-polar polymer material with low affinity with non-polar mineral oil. Polyester TPU film has good oil resistance, small change in oil amount, and tensile strength is also higher than the original value. It should be noted that when the mineral oil contains a small amount of water, the physical properties of the TPU film will be negatively affected to varying degrees.

TPU film is very easy to high frequency welding and hot pressing, so it is widely used in inflatable products. The elements of the device are that the gas is at a certain temperature and pressure, and the gas sample is transported in a given area at a speed, and the same material can be widely used for different transmittance changes. In general, the air tightness of polyester products is better than that of polyether products.TPU film is widely used in the medical industry due to its good compatibility with TPU materials, non-toxic and non-allergic.

Six characteristics of TPU film.

1. High wear resistance: It can be seen from the comparison of the wear index of TPU film and other materials:

2. Wide range of hardness) By changing the ratio of TPU film of each reagent, it is possible to use products with different hardness, which maintain softness while increasing hardness;

3. Strong bearing capacity) TPU film has very strong impact and bearing capacity;

4. Good processing performance: TPU film can be processed with conventional thermoplastic materials, such as injection molding, extrusion, calendering, etc. When processing, the tpu material is processed together with other composite materials without losing its properties;

5. Cold resistance: The TPU film with a relatively low glass transition temperature remains at minus 35 degrees, with good physical properties such as flexibility;

6. Corrosion resistance, mildew resistance and good regeneration performance.

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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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