Polyurethane adhesive is a kind of high-grade adhesive, with excellent flexibility, impact resistance, chemical resistance, wear resistance, and the most important is its low temperature resistance. Because of its series of advantages, polyurethane adhesives are widely used in the following fields.

1. Carpentry industry

With the improvement of people's awareness of environmental protection, the wood processing industry has gradually used a new type of environmentally friendly polyurethane adhesive to replace the urea-formaldehyde resin, so as to reduce the pollution to the environment. One-component moisture-cured polyurethane adhesives used in the woodworking industry are liquid and used at room temperature. Usually, it has high bonding strength, good flexibility and water resistance, and can be bonded to many non-wood substrates (such as metal, plastic, rubber, etc.). The dry and wet strength of one component polyurethane adhesive is better than that of phenolic adhesive. Before bonding, coating hydroxymethyl resorcinol (HMR) coupling agent on the surface of bonding substrate can improve bonding strength.

2.Shoe industry

Our country is always a large shoe-making country, and in recent years the preparation technology of water-based polyurethane is becoming mature. For some low-polarity shoe materials, such as SBS and other materials bonding, the peeling strength of polyurethane adhesive can not meet the requirements. Polyurethane adhesives for shoes with high crystallinity, high crystallization rate, high cohesion strength and good peeling strength can be developed by adding viscosifying resin.

3.Packaging industry

Flexible packaging has surpassed hard packaging, such as plastic, glass bottles and cans, for its unique comprehensive performance such as light and convenient, long shelf life, sanitation, easy storage and transportation, easy to disassemble, less garbage and good shelf effect. Because of its excellent performance, polyurethane adhesive can bond film materials of different properties together to get cold resistance, oil resistance, drug resistance, transparent, wear resistance and other properties of flexible packaging composite film. At present, polyurethane adhesive has become the main adhesive for flexible packaging composite film processing in domestic and foreign markets.

4.Construction and paving industry

In addition to the advantages of non-toxic, pollution-free, easy to use, polyurethane adhesive also has other incomparable advantages, that is, excellent low temperature resistance, solvent resistance, aging resistance, ozone resistance and bacteria resistance, in the application of building pavement materials plays an important role. It is widely used in elastic rubber floor MATS, hard rubber floor tiles and laying plastic track sports fields. The new two-component polyurethane adhesive breaks through the contradiction between the shear strength and the peeling strength of the traditional adhesive, and can make both of them achieve higher use strength at the same time. It shows excellent performance in the bonding of the steel plate for construction. The bonding is strong and not easy to produce deformation, and the curing speed can be adjusted at room temperature, so that the polyurethane adhesive is convenient and widely used.

5.Automobile industry

The most widely used polyurethane adhesives in automobiles are windshield assembly with one component wet curing polyurethane sealant; Structural adhesives for bonding glass fiber reinforced plastics and sheet molding composites, two-component polyurethane adhesives for internal components and waterborne polyurethane adhesives, etc. Automotive interior trim is also an area of adhesive usage growth. Waterborne polyurethane adhesive widely used in automobiles refers to the adhesive formed by polyurethane dissolved in water or dispersed in water.

Our company produces waterborne polyurethane resin and used in various industries of water based polyurethane adhesive, welcome to consult and buy.