METHOD FOR MANUFACTURING POROUS SILICA HAVING NETWORK STRUCTURE, AND COMPOSITE MATERIAL CONTAINING POROUS SILICA AND RESIN

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing simply and inexpensively a porous silica having the network structure controlled highly in the shape. SOLUTION: The method for manufacturing a porous silica having a network structure comprises the first process of preparing a silica source aqueous solution which contains a cationic surfactant, a salicylic acid and a silicate, and has a ratio of a number of moles of the salicylic acid relative to (a number of moles of the cationic surfactant/an ionic valency per mole of the cationic surfactant) of 0.3-3, the second process of precipitating the silica having a network structure from the above silica source aqueous solution and the third process of removing the cationic surfactant and the salicylic acid from the silica. COPYRIGHT: (C)2006,JPO&NCIPI