Dual-curable polyurethane composition capable of being used for 3D printing of porous elastomer, and polyurethane porous elastomer

Abstract

Disclosed in the present disclosure are a dual-curable polyurethane composition capable of being used for 3D printing of a porous elastomer, and a polyurethane porous elastomer. Said dual-curable polyurethane composition comprises the following components by parts by mass: 30-40 parts of a polyurethane-acrylate prepolymer mixture, 10-20 parts of a hydroxyl-terminated polyurethane prepolymer, 30-40 parts of a diluent, and 10-20 parts of deionized water, wherein the polyurethane-acrylate prepolymer mixture is a mixture of polyurethane-acrylate prepolymers terminated by hydroxyl acrylate and methyl ethyl ketoxime and having a carboxylic acid group on a pendant group, and the diluent is a water-soluble diluent.

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