Method of low pressure and/or evaporative drying of aerogel

Mayer, S T; Kaschmitter, J L; Pekala, R W

Title: Method of low pressure and/or evaporative drying of aerogel

Full Record
Other Related Research

Abstract

A process is described whereby Resorcinol/Formaldehyde (RF) aerogel having a density of about 0.4--1.2 g/cc can be manufactured using a simple air drying procedure. This process is inherently simpler, quicker, and less expensive than the more conventional supercritical or subcritical CO{sub 2} extraction procedures. RF aerogels can be used as produced, such as in insulation applications, or pyrolyzed to form carbon aerogels with a density of about 0.9 g/cc for use in applications such as batteries, supercapacitors, etc.

Inventors:: Mayer, S T; Kaschmitter, J L; Pekala, R W

Issue Date:: 1995-05-30

Research Org.:: Univ. of California (United States)

OSTI Identifier:: 63437

Patent Number(s):: 5420168

Application Number:: PAN: 8-041,503

Assignee:: Univ. of California, Oakland, CA (United States)

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Resource Relation:: Other Information: PBD: 30 May 1995

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; GELS; MANUFACTURING; THERMAL INSULATION; PYROLYTIC CARBON; RESORCINOL; FORMALDEHYDE; EVAPORATION; ELECTRIC BATTERIES; CAPACITORS

Citation Formats


                    Mayer, S T, Kaschmitter, J L, and Pekala, R W. Method of low pressure and/or evaporative drying of aerogel.  United States: N. p., 1995. 
        Web.

Copy to clipboard


                    Mayer, S T, Kaschmitter, J L, & Pekala, R W. Method of low pressure and/or evaporative drying of aerogel.  United States.

Copy to clipboard


                    Mayer, S T, Kaschmitter, J L, and Pekala, R W. Tue .  
        "Method of low pressure and/or evaporative drying of aerogel".  United States.

Copy to clipboard


                    
@article{osti_63437,

  title        = {Method of low pressure and/or evaporative drying of aerogel},

  author       = {Mayer, S T and Kaschmitter, J L and Pekala, R W},

  abstractNote = {A process is described whereby Resorcinol/Formaldehyde (RF) aerogel having a density of about 0.4--1.2 g/cc can be manufactured using a simple air drying procedure. This process is inherently simpler, quicker, and less expensive than the more conventional supercritical or subcritical CO{sub 2} extraction procedures. RF aerogels can be used as produced, such as in insulation applications, or pyrolyzed to form carbon aerogels with a density of about 0.9 g/cc for use in applications such as batteries, supercapacitors, etc.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1995},

  month        = {5}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Method of low pressure and/or evaporative drying of aerogel

Patent Mayer, Steven T [San Leandro, CA]; Kaschmitter, James L [Pleasanton, CA]; Pekala, Richard W [Pleasant Hill, CA]

A process whereby Resorcinol/Formaldehyde (RF) aerogel having a density of about 0.4-1.2 g/cc can be manufactured using a simple air drying procedure. This process is inherently simpler, quicker, and less expensive than the more conventional supercritical or subcritical CO.sub.2 extraction procedures. RF aerogels can be used as produced, such as in insulation applications, or pyrolyzed to form carbon aerogels with a density of about 0.9 g/cc for use in applications such as batteries, supercapacitors, etc.
Full Text Available
Moving zone Marangoni drying of wet objects using naturally evaporated solvent vapor

Patent Britten, J A

A surface tension gradient driven flow (a Marangoni flow) is used to remove the thin film of water remaining on the surface of an object following rinsing. The process passively introduces by natural evaporation and diffusion of minute amounts of alcohol (or other suitable material) vapor in the immediate vicinity of a continuously refreshed meniscus of deionized water or another aqueous-based, nonsurfactant rinsing agent. Used in conjunction with cleaning, developing or wet etching application, rinsing coupled with Marangoni drying provides a single-step process for (1) cleaning, developing or etching, (2) rinsing, and (3) drying objects such as flat substrates ormore »« less
Low density, resorcinol-formaldehyde aerogels

Patent Pekala, R W

The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer clusters. The covalent crosslinking of these clusters produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density [<=]100 mg/cc; cell size [<=]0.1 microns). The aerogels are transparent, dark red in color and consist of interconnected colloidal-like particles with diameters of about 100 [angstrom]. These aerogels may be further carbonized to form low density carbon foams with cell size of about 0.1 micron.
Low density, resorcinol-formaldehyde aerogels

Patent Pekala, R. W.

The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer ''clusters''. The covalent crosslinking of these ''clusters'' produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density less than or equal to100 mg/cc; cell size less than or equal to0.1 microns). The aerogels are transparent,dark red in color and consist of interconnected colloidal-like particles with diameters of about 100 A/degree/. These aerogels may be further carbonized to form low density carbon foams with cell size of about 0.1 micron. 1 fig., 1 tab.
Full Text Available

Similar Records