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Brief introduction to the definition and characteristics of waterborne polyurethane adhesive
2019/8/13
HC Fire-fighting Network Waterborne Polyurethane Adhesive has the advantages of softness and hardness, low temperature resistance, good flexibility and high bonding strength. It can bond a variety of materials such as metal and non-metal. However, the entire polyurethane adhesive industry is still dominated by solvents.
Waterborne polyurethane adhesive features
In addition to the advantages of polyurethane, waterborne polyurethane adhesives are unique compared to solvent-based polyurethane adhesives.
1. Using water as medium, non-toxic and non-combustible, pollution-free, non-hazardous, low odor, no pollution to the environment, energy saving, suitable for substrates that are easily attacked by organic solvents.
2, the viscosity is low, and can be adjusted with water-soluble thickener and water, easy to operate, the residual glue is easy to clean.
3, can be mixed with a variety of water-based resin, which will improve performance and reduce costs, but pay attention to ionic properties and acidity and alkalinity to prevent agglomeration.
6, slow drying speed, low initial viscosity, and poor water resistance
Waterborne polyurethane adhesive features
In addition to the advantages of polyurethane, waterborne polyurethane adhesives are unique compared to solvent-based polyurethane adhesives.
1. Using water as medium, non-toxic and non-combustible, pollution-free, non-hazardous, low odor, no pollution to the environment, energy saving, suitable for substrates that are easily attacked by organic solvents.
2, the viscosity is low, and can be adjusted with water-soluble thickener and water, easy to operate, the residual glue is easy to clean.
3, can be mixed with a variety of water-based resin, which will improve performance and reduce costs, but pay attention to ionic properties and acidity and alkalinity to prevent agglomeration.
4, containing carboxyl, hydroxyl and other groups, under appropriate conditions can participate in the reaction, cross-linking, improve performance.
5. Poor wettability to non-polar substrates.
6, slow drying speed, low initial viscosity, and poor water resistance
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