Advantages of polyurethane hot melt adhesive
What is Polyurethane?
Polyurethane (PU) is a polymer compound. It was produced by Otto Bayer and others in 1937. There are two types of polyurethanes: polyester and polyether. They can be made into polyurethane plastic (mainly foam), polyurethane fiber (called spandex in China), polyurethane rubber and elastomer.
The characteristics of polyurethane
Soft polyurethane mainly has a thermoplastic linear structure, which has better stability, chemical resistance, resilience and mechanical properties than PVC foam materials, and has smaller compression set. Good heat insulation, sound insulation, shock resistance and anti-virus performance. Therefore, it is used as packaging, sound insulation, and filter materials. Rigid polyurethane plastic is light in weight, excellent in sound insulation and heat insulation performance, chemical resistance, good electrical performance, easy to process, and low water absorption.
What is Polyurethane Hot Melt Adhesive?
Polyurethane hot melt adhesive is hot melt polyurethane adhesive. Hot-melt polyurethane adhesive is a special type of environmentally friendly solvent-free one-component polyurethane adhesive.
Features of polyurethane hot melt adhesive
Hot-melt adhesives are solid at room temperature. When heated to a certain temperature, they melt into a viscous liquid. After cooling to room temperature, they become solid again and have a strong bonding effect. Therefore, they are called hot-melt adhesives. (type) adhesive (referred to as hot melt adhesive).
Because hot melt adhesive has the advantages of fast bonding, non-toxic, simple process, and good bonding strength and flexibility, it is widely used in bookbinding, packaging sealing, shoemaking, textile, construction, automobile components, furniture, etc. It is widely used in manufacturing (seaming and middle panels), car lights, home appliances, etc., especially suitable for fabric lamination, and has new developments in varieties and performance in recent years.
Advantages of polyurethane hot melt adhesive
Most hot-melt adhesives are made of ethylene-vinyl acetate (EVA), polyester, polyamide and other hot-melt resins. Polyurethane hot-melt adhesives have the advantages of high polarity, high strength, good flexibility, etc., especially reactive Polyurethane hot melt adhesive has good heat resistance after curing, and has better bonding performance than traditional hot melt adhesives.
The main components of polyurethane hot melt adhesive
The main component of polyurethane hot melt adhesive is thermoplastic polyurethane resin or prepolymer, which can be compounded with additives such as antioxidants, tackifiers, catalysts and fillers. After processing, it can be in the form of strips, granules, powders, and films at room temperature. When used, it is heated to a certain temperature to melt and coat the surface of the substrate. After cooling, it solidifies and acts as an adhesive.
Hot-melt polyurethane has high reliability, good chemical and physical uniformity, a simple bonding process (lower production cost), less waste (unused glue can be stored for later use), and there is no mixing problem, which can make the adhesive agent achieve the best physical properties. In addition, because the hot melt adhesive does not use organic solvents, the production site will not be polluted, so it is welcomed by users.
Hot melt adhesive film made of 100% polyurethane
MASBOND hot melt film MB-0088 is made of 100% polyurethane material, with low processing temperature, stable performance and strong adhesion. Using the MS-38UCP glue applicator, the hot-melt film can be perfectly attached to the fabric.
Polyurethane Hot Melt Film Supplier
Masbond is a professional manufacturer of TPU adhesive tape, hot melt film, waterproof tape, rubber tape, single-layer TPU faucets, EVA tape and other adhesive tapes.
The products have been widely sold to the international market, and their application scope covers clothing and textiles, outdoor products, luggage and shoe materials, the packaging industry, the electronics industry, the advertising industry, the automobile industry, the medical industry and other industries.
If you are looking for high quality hot Melt Film, please feel free to contact Masbond.