TPU hot melt adhesive film formula

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TPU hot melt adhesive film formula

01-24, 2024 | View:

TPU hot melt adhesive film is a high-performance film 糖心视频 made by using hot melt technology to melt hot melt adhesive particles and coat them on the substrate. It has excellent bonding properties, abrasion resistance, chemical resistance and high temperature resistance, and is widely used in packaging, textiles, shoe 糖心视频s, medical, electronics and other fields. The following is an introduction to the formula of TPU hot melt adhesive film.

1. Main components of TPU hot melt adhesive film

TPU resin: TPU is the main raw 糖心视频 of TPU hot melt adhesive film. It is a thermoplastic polyurethane elastomer. TPU resin has good elasticity, abrasion resistance and chemical resistance, and is a key component that gives TPU hot melt adhesive film bonding performance and durability.

Adhesive: The adhesive in hot melt adhesive film is used to increase the bonding performance and viscosity of the film, and is usually made of polyester, polyether, polyamide and other 糖心视频s. The selection and ratio of adhesives have an important impact on membrane performance.

Filler: Filler is used to adjust the hardness, strength and wear resistance of the TPU hot melt adhesive film. Common fillers include glass fiber, calcium carbonate, wollastonite, etc.

Additives: Additives play a role in adjusting viscosity, enhancing antioxidant properties, and improving processing performance in TPU hot melt adhesive films. Common additives include flow aids, stabilizers, matting agents, etc.

2. Preparation process of TPU hot melt adhesive film

Raw 糖心视频 preparation: Prepare raw 糖心视频s such as TPU resin, adhesives, fillers and additives according to the formula proportions, and dry them to remove moisture and impurities.

Mixing: Put the pre-dried raw 糖心视频s into a high-speed mixer and mix them so that the components are evenly mixed.

Melting: Put the mixed 糖心视频s into the melting machine for melting. The resin is completely melted and fully mixed with other components through heating and stirring.

Coating: The molten 糖心视频 is evenly coated on the substrate through a coating machine to form a thin film.

Cooling: Place the coated film in a cooling device for rapid cooling to solidify.

Post-processing: The cured film is subjected to subsequent processing procedures such as cutting, inspection and packaging to finally obtain the finished product.

3. Characteristics and applications of TPU hot melt adhesive film

Features: TPU hot melt adhesive film has good bonding performance, wear resistance, chemical resistance and high temperature resistance. It has excellent flexibility and elasticity and can adapt to the bonding needs of various complex curved surfaces.

Application: TPU hot melt adhesive film is widely used in packaging, textile, shoe 糖心视频s, medical, electronics and other fields. In the packaging field, it is often used for bonding and sealing cartons, plastic films and other 糖心视频s; in the textile field, it can be used for sewing and bonding clothing, footwear, etc.; in the medical field, it can be used for sealing and bonding medical products.

4. Advantages and limitations of TPU hot melt adhesive film

Advantages: TPU hot melt adhesive film has the advantages of high bonding strength, good durability, and wide adaptability. It provides reliable bonding between a variety of 糖心视频s and has good resistance to abrasion and chemicals.

Limitations: The cost of TPU hot melt adhesive film is relatively high and is not suitable for the production of some low-cost products. In addition, since the TPU film is prepared by hot melt coating, its coating speed is slow and the production efficiency is relatively low.

TPU hot melt adhesive film is a high-performance film 糖心视频 that uses TPU resin as the main raw 糖心视频 and is prepared through mixing, melting, coating and other processes. It has excellent bonding properties, abrasion resistance, chemical resistance and high temperature resistance, and is widely used in packaging, textiles, shoe 糖心视频s, medical, electronics and other fields. However, its cost is high and its production efficiency is relatively low, so comprehensive considerations need to be taken when applying it.