[go: up one dir, main page]

Meti et al., 2022 - Google Patents

Sorbitol cross-linked silica aerogels with improved textural and mechanical properties

Meti et al., 2022

Document ID
9247063725071178828
Author
Meti P
Wang Q
Gong Y
Mahadik D
Park H
Publication year
Publication venue
Ceramics International

External Links

Snippet

It is well known that although organically modified silica aerogels have enhanced mechanical properties, the specific surface area decreases due to the larger pore size. However, cross-linking with sorbitol enhances the mechanical properties while maintaining …
Continue reading at www.sciencedirect.com (other versions)

Classifications

    • 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
    • C01B33/146—After-treatment of sols
    • 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
    • C01B33/159—Coating or hydrophobisation
    • 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
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B31/00—Carbon; Compounds thereof
    • C01B31/02—Preparation of carbon; Purification; After-treatment
    • 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
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B37/00—Compounds having molecular sieve properties but not having base-exchange properties
    • C01B37/02—Crystalline silica-polymorphs, e.g. silicalites dealuminated aluminosilicate zeolites
    • 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
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/48—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms

Similar Documents

Publication Publication Date Title
Feng et al. Synthesis of high specific surface area silica aerogel from rice husk ash via ambient pressure drying
US11274044B2 (en) Method for producing aerogel blanket and aerogel blanket produced thereby
Meti et al. Sorbitol cross-linked silica aerogels with improved textural and mechanical properties
Wu et al. Facile synthesis of flexible and hydrophobic polymethylsilsesquioxane based silica aerogel via the co-precursor method and ambient pressure drying technique
He et al. Flexible silica aerogel based on methyltrimethoxysilane with improved mechanical property
Wu et al. Preparation and surface modification mechanism of silica aerogels via ambient pressure drying
Stojanovic et al. Ambient pressure drying of silica aerogels after hydrophobization with mono-, di-and tri-functional silanes and mixtures thereof
Zhao et al. Performance regulation of silica aerogel powder synthesized by a two-step Sol-gel process with a fast ambient pressure drying route
Cheng et al. Effect of surface modification on physical properties of silica aerogels derived from fly ash acid sludge
Yun et al. Facile synthesis of large-sized monolithic methyltrimethoxysilane-based silica aerogel via ambient pressure drying
Liu et al. Phase-separation induced synthesis of superhydrophobic silica aerogel powders and granules
US9527977B2 (en) Organically modified hybrid aerogels
Wu et al. Fabrication of hydrophobic alumina aerogel monoliths by surface modification and ambient pressure drying
Wang et al. Elastic methyltrimethoxysilane based silica aerogels reinforced with polyvinylmethyldimethoxysilane
Nah et al. Silylation of sodium silicate-based silica aerogel using trimethylethoxysilane as alternative surface modification agent
Li et al. A facile method to prepare cellulose whiskers–silica aerogel composites
Jung et al. Hydrophobic silica composite aerogels using poly (methyl methacrylate) by rapid supercritical extraction process
Liu et al. Influence of thermal process on microstructural and physical properties of ambient pressure dried hydrophobic silica aerogel monoliths
Chang et al. Preparation and comparative properties of membranes based on PANI and three inorganic fillers.
Ingale et al. Physico-chemical properties of silica aerogels prepared from TMOS/MTMS mixtures
Deng et al. Effects of precursor concentration on the physicochemical properties of ambient-pressure-dried MTES based aerogels with using pure water as the only solvent
Si et al. Ambient-dried hydrophobic silica aerogels for both enhanced transparency and thermal insulation
Zhang et al. Direct synthesis and characterization of highly ordered functional mesoporous silica thin films with high amino-groups content
Mahadik et al. Elastic and superhydrophobic monolithic methyltrimethoxysilane-based silica aerogels by two-step sol-gel process
Al-Husseny et al. Water glass based superhydrophobic silica aerogel in different environmental of preparation