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    • 10. 发明申请
    • POROUS POLYUREA MATERIAL AND METHODS FOR PREPARING THE SAME
    • 多孔聚氨酯材料及其制备方法
    • US20120095123A1
    • 2012-04-19
    • US13378199
    • 2010-07-26
    • Ji-Woong ParkSu-Young MoonJae-Sung Bae
    • Ji-Woong ParkSu-Young MoonJae-Sung Bae
    • C08G18/76C08G18/72
    • C08G18/3243C08G2101/00C08J9/28C08J2201/0502C08J2205/02C08J2375/04
    • The present invention relates to a porous polyurea material and a method for preparing the same. The porous polyurea material may be prepared by polymerization and crosslinking of tetra(4-aminophenyl)methane with a monomer two to four isocyanate (—NCO) groups. The method includes: mixing an organic solution of tetra(4-aminophenyl)methane with an organic solution of a monomer having two to four isocyanate groups; reacting the mixed solution under a nitrogen atmosphere; and drying a semi-solid or solid material formed by gelation of the reaction solution, or adding the reaction solution to a non-solvent before gelation of the reaction solution to form a precipitate, followed by drying, or applying the reaction solution to a substrate before gelation of the reaction solution, followed by drying. According to the present invention, the introduction of the monomer having a tetrahedral structure can impart good chemical resistance, heat resistance and durability to the porous polyurea material.
    • 本发明涉及一种多孔聚脲材料及其制备方法。 多孔聚脲材料可以通过四(4-氨基苯基)甲烷与单体二至四个异氰酸酯(-NCO)基团的聚合和交联来制备。 该方法包括:将四(4-氨基苯基)甲烷的有机溶液与具有2-4个异氰酸酯基团的单体的有机溶液混合; 在氮气氛下使混合溶液反应; 并干燥通过反应溶液的凝胶化形成的半固体或固体物质,或在将反应溶液凝胶化之前将反应溶液加入到非溶剂中以形成沉淀物,然后干燥,或将反应溶液施用于基材 在反应溶液凝胶化之前,然后干燥。 根据本发明,引入具有四面体结构的单体可以赋予多孔聚脲材料良好的耐化学性,耐热性和耐久性。