EP3445805A4 - Methods for fabrication of silica aerogels with custom shapes using freeze drying - Google Patents

Methods for fabrication of silica aerogels with custom shapes using freeze drying Download PDF

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Publication number
EP3445805A4
EP3445805A4 EP17786738.9A EP17786738A EP3445805A4 EP 3445805 A4 EP3445805 A4 EP 3445805A4 EP 17786738 A EP17786738 A EP 17786738A EP 3445805 A4 EP3445805 A4 EP 3445805A4
Authority
EP
European Patent Office
Prior art keywords
fabrication
methods
freeze drying
silica aerogels
custom shapes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17786738.9A
Other languages
German (de)
French (fr)
Other versions
EP3445805A1 (en
Inventor
Massimo Bertino
Lauren White
Dalton ECHARD
Tyler SELDEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Virginia Commonwealth University
Original Assignee
Virginia Commonwealth University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Virginia Commonwealth University filed Critical Virginia Commonwealth University
Publication of EP3445805A1 publication Critical patent/EP3445805A1/en
Publication of EP3445805A4 publication Critical patent/EP3445805A4/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
    • C08G18/6469—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63 having silicon
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/157—After-treatment of gels
    • C01B33/158—Purification; Drying; Dehydrating
    • C01B33/1585—Dehydration into aerogels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • C08J9/286—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum the liquid phase being a solvent for the monomers but not for the resulting macromolecular composition, i.e. macroporous or macroreticular polymers
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/026—Crosslinking before of after foaming
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/048—Elimination of a frozen liquid phase
    • C08J2201/0482—Elimination of a frozen liquid phase the liquid phase being organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/02—Foams characterised by their properties the finished foam itself being a gel or a gel being temporarily formed when processing the foamable composition
    • C08J2205/026—Aerogel, i.e. a supercritically dried gel
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2383/04—Polysiloxanes
    • C08J2383/06—Polysiloxanes containing silicon bound to oxygen-containing groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silicon Compounds (AREA)
  • Silicon Polymers (AREA)
EP17786738.9A 2016-04-21 2017-04-21 Methods for fabrication of silica aerogels with custom shapes using freeze drying Withdrawn EP3445805A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662325525P 2016-04-21 2016-04-21
US201715500376A 2017-01-30 2017-01-30
PCT/US2017/028903 WO2017185009A1 (en) 2016-04-21 2017-04-21 Methods for fabrication of silica aerogels with custom shapes using freeze drying

Publications (2)

Publication Number Publication Date
EP3445805A1 EP3445805A1 (en) 2019-02-27
EP3445805A4 true EP3445805A4 (en) 2019-10-30

Family

ID=60117029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17786738.9A Withdrawn EP3445805A4 (en) 2016-04-21 2017-04-21 Methods for fabrication of silica aerogels with custom shapes using freeze drying

Country Status (2)

Country Link
EP (1) EP3445805A4 (en)
WO (1) WO2017185009A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016019308A1 (en) 2014-07-31 2016-02-04 Virginia Commonwealth University Method for one-step synthesis, cross-linking and drying of aerogels
US10889501B2 (en) 2016-02-24 2021-01-12 Massachusetts Institute Of Technology Solar thermal aerogel receiver and materials therefor
WO2019210051A1 (en) 2018-04-25 2019-10-31 Massachusetts Institute Of Technology Energy efficient soundproofing window retrofits
WO2020264070A1 (en) * 2019-06-28 2020-12-30 Virginia Commonwealth University Fabrication of aerogels and aerogel composites by ambient pressure sublimation of frozen solvents
CN110983490B (en) * 2019-12-24 2022-06-14 中国科学院苏州纳米技术与纳米仿生研究所 Silica aerogel fiber with adjustable transparency and hydrophobicity, preparation method and application
CN111072037B (en) * 2020-02-10 2023-04-28 赢胜节能集团股份有限公司 Preparation method of silica aerogel
CN111793240A (en) * 2020-07-20 2020-10-20 纳诺科技有限公司 Organic aerogel material and preparation method and application thereof
CN112619444B (en) * 2020-11-30 2022-04-12 中国科学院苏州纳米技术与纳米仿生研究所 High-flux composite membrane, preparation method and application thereof
CN114229851B (en) * 2021-12-10 2023-05-12 中北大学 Preparation method of silica aerogel with grade gradient holes for efficient water evaporation
CN114105151A (en) * 2022-01-12 2022-03-01 兰州大学 Preparation method of micron-sized spherical silicon dioxide
CN114538453B (en) * 2022-02-25 2023-06-23 中国科学院苏州纳米技术与纳米仿生研究所 Superfine monodisperse silicon oxide aerogel microsphere and preparation method and application thereof
CN115057447B (en) * 2022-07-19 2023-11-21 中国科学院苏州纳米技术与纳米仿生研究所 Super-transparent silicon oxide aerogel material, and preparation method and application thereof
CN115340098A (en) * 2022-08-15 2022-11-15 中国科学院苏州纳米技术与纳米仿生研究所 Silica aerogel material with high self-bonding strength, and preparation method and application thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140065229A1 (en) * 2011-01-10 2014-03-06 Seda Giray Hydrophobic and hydrophylic aerogels encapsulated with peg hydrogel via surface initiated photopolymerization

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233703B4 (en) 2002-07-24 2008-04-17 Basf Ag Process for the preparation of nanozellularer, particulate polymer foams and their use for the production of moldings
US7771609B2 (en) 2002-08-16 2010-08-10 Aerogel Technologies, Llc Methods and compositions for preparing silica aerogels
US7732496B1 (en) 2004-11-03 2010-06-08 Ohio Aerospace Institute Highly porous and mechanically strong ceramic oxide aerogels
US8029871B2 (en) 2005-06-09 2011-10-04 Hoya Corporation Method for producing silica aerogel coating
JP5250900B2 (en) 2005-07-19 2013-07-31 株式会社ダイナックス Alkylsiloxane airgel manufacturing method, alkylsiloxane airgel, manufacturing apparatus thereof, and panel manufacturing method including the same
CN105226284B (en) 2009-07-01 2017-11-28 巴斯夫欧洲公司 Ultrapure synthetic carbon materials
US20110250428A1 (en) 2010-02-07 2011-10-13 Aerogel Technologies, Llc Preparation of cross-linked aerogels and derivatives thereof
US9808964B2 (en) 2011-07-12 2017-11-07 Board Of Trustees Of Michigan State University Porous sol gels and methods and structures related thereto
US9206298B2 (en) * 2013-05-23 2015-12-08 Nexolve Corporation Method of aerogel synthesis
US9764301B2 (en) 2013-11-14 2017-09-19 Nanyang Technological University Silica aerogel composite
WO2016019308A1 (en) 2014-07-31 2016-02-04 Virginia Commonwealth University Method for one-step synthesis, cross-linking and drying of aerogels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140065229A1 (en) * 2011-01-10 2014-03-06 Seda Giray Hydrophobic and hydrophylic aerogels encapsulated with peg hydrogel via surface initiated photopolymerization

Also Published As

Publication number Publication date
EP3445805A1 (en) 2019-02-27
WO2017185009A1 (en) 2017-10-26

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