to reduce the content of the free

In use, the two components were uniformly mixed together, formed by mutual reaction macromolecules to achieve crosslinking and curing.The solvent-free two-component adhesive using require products with low viscosity, in order to ensure that the operating temperature is between 40-50 ℃.Without inversely proportional to the content of the solvent the viscosity of the adhesive and the prepolymer in the isocyanate group, to reduce the content of the free dicarboxylic prepolymer isocyanate ester group is bound to make the isocyanate group content in the product decreased, so that the product viscosity increase.With increased operating temperature, the operating conditions are difficult to control.Developed by our institute the low swim free isocyanate monomer novel two-component solvent-free polyurethane adhesive, not only reduces the product free di-iso-cyanate ester-based content, and make the products with the appropriate viscosity, the operating temperature is moderate in line with customer requirements. 5.The solvent adhesive coating and the use of non-solvent polyurethane adhesive coating Unlike solvent-based adhesive coating.Solvent type adhesive coating, the coating is uniform, easy to control by increasing the organic solvent to adjust the viscosity of the coated.Since the solvent-free adhesives do not contain any solvent, the viscosity at room temperature is quite large.