TPU hot-melt adhesive film is a special type among all hot-melt adhesive films. Its finished product has a wide range of applications, and has multiple melting point ranges, three temperature ranges of high, medium and low. Among them, the finished product "TPU hot melt adhesive film" with medium and high temperature resistance not only has good elasticity, but also because of its high elasticity, it can be used in many industries such as clothing and shoe materials, home textiles, automotive interior ceilings, and seat leather. widely used. Let's take a look at the melting and bonding temperature of TPU hot melt adhesive film.
Melting and bonding temperature of low temperature type TPU hot melt adhesive film
Low-temperature type TPU hot-melt adhesive film is called low-temperature type because its melting point is relatively low, around 70°C. The main types include: XJU83 model with backing paper and HJU80 model without backing paper. The melting and laminating temperature of the PE-DJU90 is about 100°C, while the melting point of PE-DJU90 is only about 50°C. It is a low-temperature TPU hot-melt adhesive film with a PE release film.
Melting and bonding temperature of medium temperature type TPU hot melt adhesive film
The reason why the same medium temperature type TPU hot melt adhesive film is called the medium temperature type is mainly because the melting point temperature is relatively middle, around 110°C, mainly including XJU120 with substrate and HJU120 without substrate, and the composite temperature of the two They are all around 140, with certain low temperature and high temperature resistance.
Melting and bonding temperature of high temperature type TPU hot melt adhesive film
The reason why the high-temperature type TPU hot-melt adhesive film is called high temperature is that its melting point is around 150°C. We have many models, and there is only one model that meets the conditions, which is GXJU150. It is a characteristic of high temperature High-elastic hot-melt adhesive film, the melting + bonding temperature is about 180°C, the temperature is so high that it can basically meet the bonding of various materials in the field with high temperature resistance requirements.
The above is the introduction of the melting and laminating temperature of different types of TPU hot melt adhesive films. All have good washing resistance, which is common.
What hot melt adhesive film has the strongest bonding strength?
Hot-melt adhesives are recognized as environmentally friendly adhesives. Of course, hot-melt adhesive film products made of hot-melt adhesives are also environmentally friendly, which is why hot-melt adhesive films are getting more and more attention today.
Hot-melt adhesive films can be divided into many types according to the material of the raw materials. The more common ones are EVA hot-melt adhesive film, TPU hot-melt adhesive film, PA hot-melt adhesive film, PES hot-melt adhesive film, and PO hot-melt adhesive film. Type, the corresponding chemical names are ethylene-vinyl acetate polymer, thermoplastic polyurethane, polyamide, polyester, polyolefin. These types of polymers have their own characteristics, so the properties of the hot melt adhesive film products are also different, but as an adhesive product, the most important performance index may be the adhesive strength, so this Which of the several types of hot melt adhesive film products has the best adhesive strength?
In fact, there is no way to give an accurate answer to the question of which is the best adhesive strength. Because different types of adhesives have different bonding characteristics for different materials, so the reflected bonding strength is also different. For example, the effect of PES hot-melt adhesive film on metal is generally better than TPU hot-melt adhesive film, but a certain TPU hot-melt adhesive film may be far better than PES hot-melt adhesive film on PVC plastic. Therefore, which kind of hot melt adhesive film has good bonding strength? This question itself is not very specific, and it is difficult to answer. Generally, a specific material type must be given before it can be determined based on experience.
Of course, given the specific type of material, it is usually difficult to accurately judge which type of hot melt adhesive film is the best for bonding. We can only judge a rough result based on the most common situation and experience. The final result It is the most accurate to confirm that it is still necessary to use experimental tests to illustrate. Because even if the material is the same, the difference in surface roughness, surface tension and other factors will eventually affect the adhesion of the material due to the difference in the process.