Closed silicon dioxide aerogel microsphere and thermal insulation coating containing same

• Main Authors: ZHANG YOUFA, WANG XINGYAO, YU YINHUI, SUN DEWEN, FENG PAN, MA YINGJIE, MA YABIN, LI BO, SHEN ZHIMING, MIAO ZHIYONG, WANG DONGFANG, LU LIQUN, CAO JING, RAN QIANPING, TONG WEIWEI
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2023
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOUNDS THEREOF; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOTECHNOLOGY; NATURAL RESINS; NON-METALLIC ELEMENTS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention belongs to the technical field of heat-insulating protective materials, and particularly relates to closed silicon dioxide aerogel microspheres and a heat-insulating coating containing the closed silicon dioxide aerogel microspheres. The closed silicon dioxide aerogel microspheres are prepared by the following steps: performing interfacial polymerization reaction on hydrophobic SiO2 aerogel which fully absorbs a wall material raw material under the emulsification of a surfactant, so that the wall material raw material in pores of the hydrophobic SiO2 aerogel is absorbed out, and forming a wall material to coat the surface of the hydrophobic SiO2 aerogel. The invention also provides a heat insulation coating containing the closed silicon dioxide aerogel microspheres. The coating is prepared from the following raw materials: resin emulsion, the closed silicon dioxide aerogel microspheres, a dispersing agent, a wetting agent, a defoaming agent, light skeleton filler and a coalescing agent. The clos