Reactive polyurethane hot melt adhesive (PUR)

Reactive polyurethane hot melt adhesive is a moisture-curing hot melt adhesive formed by the reaction of polyols, resins and isocyanates. It is suitable for bonding a variety of materials. Common bonding materials include: ABS, PC, metal, etc.

Application areas

Packaging industry: used for edge sealing and sealing of cartons and paper boxes, can cure quickly and improve packaging efficiency. It is widely used in food, medicine and other product packaging that require high sealing performance, and can effectively prevent the contents from getting damp and deteriorating.

Wood processing: can be used for solid wood splicing, finger jointing, board veneer and other processes, can firmly bond wood to wood, wood to other materials, such as in furniture manufacturing, used to connect table legs, cabinet doors and other components, and in wooden floor production, used to splice wooden floors.

Shoemaking industry: mainly used for bonding soles and uppers, can adapt to different materials of shoes, such as leather, rubber, plastic, etc., to ensure that shoes have good wearing comfort and durability, and play an important role in the manufacture of various types of shoes such as sports shoes and leather shoes.

Automobile manufacturing: It is widely used in the assembly of automotive interior parts, such as bonding the fabric of car seats to sponges, the outer shell of the dashboard to internal components, etc. It can also be used for the installation of car windshields to ensure reliable connection between glass and body and improve the overall performance of the car.

Electronic appliances: It can be used for fixing, encapsulating and insulating electronic components, such as bonding chips to substrates, potting circuit boards, etc. It can protect electronic components from the influence of the external environment, improve the stability and reliability of electronic equipment, and is indispensable in the production of electronic products such as mobile phones and computers.

Advantages

High bonding strength: During the curing process, the molecular chain will undergo a cross-linking reaction, forming a strong chemical bond and physical adsorption with the surface of the adherend, and can produce strong bonding force on a variety of materials, ensuring that the bonding effect is long-lasting and reliable.

Fast curing speed: After heating and melting the glue, it can be cured in a short time, which can achieve rapid bonding and greatly improve production efficiency. It is especially suitable for large-scale automated production.

Good temperature resistance: After curing, it has good heat resistance and cold resistance, can maintain stable bonding performance in a wide temperature range, and is not prone to cracking, falling off and other problems due to temperature changes.

Good flexibility: The cured adhesive layer has a certain elasticity and flexibility, can adapt to the deformation and vibration of the adherend during use, and can maintain good bonding effect under dynamic stress environment.

Excellent environmental performance: It does not contain organic solvents and does not emit volatile organic compounds (VOC) during use, which is friendly to the environment and human health.