Manufacture method of inorganic foam using geopolymer silica sol.gel method

PURPOSE: A manufacturing method of a nonflammable inorganic foamed material using inorganic binder in geopolymer and a silica sol-gel process is provided to enhance thermal insulation, soundproofing property, durability, and water resistance. CONSTITUTION: A manufacturing method of an inorganic foamed material using geopolymer and a silica sol-gel process comprises following steps: diluting a foaming agent in an aqueous solution; providing silicate for providing a silica sol-gel method; generating micro-bubbles through a foaming device; providing aluminum and silicate which are starting materials to produce geopolymer; providing alkali metal and earth metal in order to function as a binder, an alkali activator, a plasticizer, and a dispersing agent during geopolymer manufacturing process; molding for insulation and soundproofing; and final heating. [Reference numerals] (AA) Foaming agent diluting step; (BB) Silicate providing step; (CC) Foaming step; (DD) Aluminum and silicate providing step as starting materials; (EE) Providing ceramic powder; (FF) Providing fiber; (GG) Alkali activator providing step; (HH) Providing gelant; (II) Molding step; (JJ) Heating step