Deflocculants for Tape Casting Barium Titanate Dielectrics.

Abstract

A typical nonaqueous tape casting system based on a commercial acrylic binder was studied to understand the system in more depth. The following conclusions were drawn: The best surfactants for dispersing barium titanate in the MEK-ethanol solvent system among those tested was found to be phosphate esters. Evidence from conductivity measurements indicated that the phosphate ester adsorbed on the BaTiO3 powder surface prior to ionization in the solution. The state of dispersion of a slip(as measured by relative viscosity)containing the acrylic binder, two plasticizers, the phosphate ester and cyclohexanone was found to be better than that of the solvent, powder and phosphate ester. The only component which adversely affected the relative viscosity was the PEG plasticizer and then especially when water was carried in as an impurity. Keywords: Dielectrics; Barium titanate; Dispersants; Acrylics; Deflocculants; Tape casting; Phosphate ester. (jes)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1988
Accession Number
ADA195863

Entities

People

  • W. R. Cannon

Organizations

  • Rutgers University–New Brunswick

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Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Mechanical Working
  • Military Research
  • Plasticizers
  • Polyethylene Glycols
  • Polymer Chemistry
  • Polymeric Films
  • Resins
  • Tensile Strength

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  • Analytical Chemistry
  • Materials Science and Engineering.
  • Polymer Science and Technology