Polyurethane is a polymer formed by the reaction of polyisocyanates with polyethers or polyester polyols under certain conditions. The prepolymer of polyurethane is simply a reactive semi-finished product obtained by controlling a certain proportion of polyisocyanates and polyols. Due to the wide variety of polyisocyanates and polyols, the reaction ratios vary.
What Is Polyurethane Prepolymer
Aug 11, 2023
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