1results about How to "Excellent compression resistance" patented technology

A polyether polyol combination for compression-resistant slow-rebound polyurethane foam, polyurethane foam and a preparation method thereof, comprising the following raw materials in parts by weight: polyether polyol A 60-90 parts, polyether polyol B 5-20 parts, polyether polyol C 10-20 parts, silicone oil surfactant 1.5-2.5 parts, chemical foaming agent 2.5-3.5 parts, amine catalyst 0.3-0.8 parts; polyether polyol A is a high-EO polyether polyol, with a hydroxyl value of 30-50 mg KOH / g, a functionality of 3, an EO content of 70%-80%, a primary hydroxyl group content of 40%-60%, and is prepared by DMC catalyst catalysis; polyether polyol B is a low-EO polyether polyol, with a molecular weight of 2500-3500, a hydroxyl value of 50-80 mg KOH / g, a functionality of 3, an EO content of 5%-10%, a PO content of 85%-92%, and is prepared by DMC catalyst catalysis; polyether polyol C is an EO-free polyether polyol, prepared by DMC catalyst catalysis. The polyurethane slow-rebound foam prepared by the application has good recovery time and excellent compression resistance, and is easy to implement and simple to operate.