Brief description of the performance characteristics of modified water-soluble polyurethane adhesive
The characteristics of the modified water-soluble polyurethane adhesive, the factors affecting its performance, and the improvement methods of its performance, etc., combined with the actual work experience, the following conclusions are drawn:
The ultimate goal of developing modified water-soluble adhesives is to replace the highly contaminated two-component solvent-based polyurethane adhesives that are currently in large use, and is also the main development direction of water-soluble polyurethanes.
A good water-soluble polyurethane adhesive system with application value must have three basic elements:
(1) It has various performances that meet the needs of different applications;
(2) It has good dry film formation and coating processing properties;
(3) Excellent water stability.
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