Hydrophilic polyurethane microporous elastomer composition and preparation method thereof

The invention provides a hydrophilic polyurethane microporous elastomer composition and a preparation method thereof, belongs to the field of polyurethane materials, and aims to solve the problems of poor hydrophilic performance and the like of an existing microporous polyurethane elastomer for shock absorption. The Hydrophilic polyurethane microporous elastomer composition comprises a component A and a component B. The component A and the component B are mixed according to the chain extension coefficient of 95-110%. The component A comprises the following raw materials by weight: 100 parts of isocyanate; and 72 to 400 parts of block polyether polyol. The component B comprises the following raw materials in parts by weight: 100 parts of polyether polyol; 1 to 3 parts of a surfactant; 2 to 5 parts of aliphatic diol; 1 to 4 parts of water; 0.05 to 1 part of a catalyst; and 0-40 parts of a filler. 本发明提供了一种亲水型聚氨酯微孔弹性体组合物及制备方法，属于聚氨酯材料领域，它解决了目前用于减震方面的微孔聚氨酯弹性体的亲水性能较差等问题。包括A组分和B组分，A组分和B组分按扩链系数95-110％进行混合，其中：A组分包括以下重量