High performance urethane foams

The invention relates to high performance urethane foams. A method for forming a polyurethane foam in a molding apparatus includes the step of directing one or more polyol compositions into a mold. Each of the one or more polyol compositions includes a polyol, water, and a catalyst. The method further includes the step of introducing the isocyanate composition into a mold to form a foamed polyurethane. The isocyanate composition includes one or more isocyanates. The one or more polyol compositions and the isocyanate composition are combined into a reaction composition. Typically, the water concentration is in the range of from 1.5% to 2% by weight of the total reaction composition, and the amount of isocyanate in the reaction composition is sufficient such that the isocyanate index is from about 83 to 98. A molded part made by the method is also provided. 本申请涉及高性能氨基甲酸酯泡沫。用于在模制设备中形成聚氨酯泡沫的方法包括将一种或更多种多元醇组合物引导到模具中的步骤。一种或更多种多元醇组合物中的每一种包含多元醇、水和催化剂。该方法还包括将异氰酸酯组合物引导到模具中以形成发泡聚氨酯的步骤。异氰酸酯组合物包含一种或更多种异氰酸酯。一种或更多种多元醇组合物和异氰酸