Silicon carbide/resin bionic composite material with directional microstructure, and preparation method thereof

• Main Authors: LIU ZENGQIAN, JIAO DA, ZHANG ZHEFENG, ZHANG MINGYANG, LIU YANYAN
• Format: Patent
• Language: Chinese; English
• Published: 06.11.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention relates to a silicon carbide/resin bionic composite material with a directional microstructure, and a preparation method thereof. The composite material is prepared from silicon carbideof which the volume fraction is 10-95%, and resin, and microscopically has the directional microstructure so as to be shown in a way that silicon carbide is directionally arranged in a resin matrix. The preparation method comprises the following steps: firstly, preparing water base slurry which contains silicon carbide powder; then, through freezing casting and vacuum freezing drying, obtaining ablank with a directional porous structure; carrying out compressing on the blank, removing organic matters, and sintering to obtain the directional porous skeleton of silicon carbide; carrying out surface modification and liquid resin monomer impregnation on the skeleton, and obtaining the silicon carbide/ resin bionic composite material with the directional microstructure after resin aggregationis carried out. The composi