Title:
INORGANIC/ORGANIC COMPOSITE, AEROGEL PRODUCTION INTERMEDIATE, AND PRODUCTION METHOD FOR AEROGEL
Document Type and Number:
WIPO Patent Application WO/2023/106386
Kind Code:
A1
Abstract:
The present disclosure provides a production method for an aerogel that makes it possible to efficiently dry a wet gel at low cost without the need for an expensive apparatus and to suppress shrinkage and associated cracking during the drying of the wet gel. This production method for an aerogel includes a step (S1) for preparing a starting material liquid that includes a metal compound and at least one type of solvent selected from the group that consists of water and water-soluble solvents, a step (S2) for performing a condensation reaction on the metal compound in the starting material liquid to generate a wet gel in which the solvent is present in the pores of an aerogel, a step (S3) for substituting a polymerizable liquid material for the solvent in the pores of the wet gel, a step (S4) for polymerizing the polymerizable liquid material in the pores of the wet gel to generate an inorganic/organic composite in which a polymer is present in the pores of an aerogel, and a step (S5) for decomposing and thereby removing the polymer in the pores of the inorganic/organic composite.
Inventors:
MUGURUMA SHINICHI (JP)
Application Number:
PCT/JP2022/045391
Publication Date:
June 15, 2023
Filing Date:
December 09, 2022
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
C01B33/16; C08F2/44; C08F283/12; C08G77/04; C08J9/42; C08L83/04; C08L85/00; C08L101/00
Foreign References:
| JP2021036038A | 2021-03-04 |
Other References:
MARY ANN B. MEADOR, EVE F. FABRIZIO, FAYSAL ILHAN, AMALA DASS, GUOHUI ZHANG, PLOUSIA VASSILARAS, J. CHRIS JOHNSTON, NICHOLAS LEVEN: "Cross-linking Amine-Modified Silica Aerogels with Epoxies: Mechanically Strong Lightweight Porous Materials", CHEMISTRY OF MATERIALS, AMERICAN CHEMICAL SOCIETY, vol. 17, no. 5, 1 March 2005 (2005-03-01), pages 1085 - 1098, XP055028648, ISSN: 08974756, DOI: 10.1021/cm048063u
MULIK S, ET AL: "Cross-linking 3D assemblies of nanoparticles into mechanically strong aerogels by surface-initiated free-radical polymerization", CHEMISTRY OF MATERIALS, AMERICAN CHEMICAL SOCIETY, US, vol. 20, no. 15, 12 August 2008 (2008-08-12), US , pages 5035 - 5046, XP002503350, ISSN: 0897-4756, DOI: 10.1021/CM800963H
MULIK S, ET AL: "Cross-linking 3D assemblies of nanoparticles into mechanically strong aerogels by surface-initiated free-radical polymerization", CHEMISTRY OF MATERIALS, AMERICAN CHEMICAL SOCIETY, US, vol. 20, no. 15, 12 August 2008 (2008-08-12), US , pages 5035 - 5046, XP002503350, ISSN: 0897-4756, DOI: 10.1021/CM800963H
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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