Using Silica Sol as a Nanoglue to Prepare Nanoscale Mesoporous Composite Gel and Aerogels

Abstract

A composite gel or aerogel is formed by commingling a particulate guest (such as a colloidal or dispersed (i.e., non-colloidal) solid or a powder) with a sol which is either about to gel or in which gelation has just started. After addition of the particulate, the mixture is then permitted to gel into a solid, gelled composite with open pores. This solid, gelled composite is then dried in a manner that prevents the collapse of open pores within the solid, gelled composite in which the gel acts as a "nanoglue" that holds the particles together.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 2000
Accession Number
ADD019720

Entities

People

  • Debra R. Rolison

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Spectra
  • Composite Materials
  • Critical Temperature
  • Electron Microscopy
  • Films
  • Fuel Cells
  • Indicator Dyes
  • Materials
  • Materials Laboratories
  • Measurement
  • Particle Size
  • Particles
  • Particulates
  • Scattering
  • Surface Plasmon Resonance
  • Surface Properties
  • Three Dimensional

Readers

  • Environmental Engineering
  • Nanocomposite Materials Science
  • Rocket Propulsion.