1. The prepolymer method prepolymer foaming process is to make the prepolymer (white material) and (black material), and then add water, catalyst, surfactant, and other additives to the prepolymer under high-speed mixing for foaming, curing at a certain temperature can be cured.
2. The foaming process of the semi-prepolymer method is to make part of the polyether polyol (white material) and diisocyanate (black material) into a prepolymer, and then add another part of the polyether or polyester polyol and diisocyanate, water, catalyst, surfactant, other additives, and mix under high-speed stirring for foaming.
西班牙语
