| 摘要 |
PURPOSE: Microsphere-dispersed waterborne polyurethane, and a manufacturing method thereof are provided to uniformly distribute the cell size, and to secure the smooth surface of the polyurethane. CONSTITUTION: A manufacturing method of microsphere-dispersed waterborne polyurethane comprises the following steps: forming a prepolymer by reacting polyol, diisocyanate, and an ionomer; neutralizing the prepolymer; emulsifying the neutralized prepolymer; chain extending the emulsified prepolymer; and adding a microsphere and dispersing.
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