Composite Materials for Maxillofacial Prostheses.

Abstract

The purpose of this program is to develop ultrasoft composite materials to be used as fillers in the fabrication of maxillofacial prostheses. The projected composite systems are elastomeric-shelled, liquid-filled microcapsules. Two experimental approaches were pursued toward making such microcapsules. One approach involves coaxial extrusion of a catalyzed elastomer precursor and core liquid into a rotating, graded-density bath. A major problem to be solved with this approach is how to break the stream into small, closed capsules. The other approach involves interfacial polymerization of polyurethane around droplets of polyglycols formed in a continuum containing diisocyanate. Problems encountered here include keeping the spheres separately suspended until curing is complete, and producing an elastomeric shell only rather than forming solid beads. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1978
Accession Number
ADA073642

Entities

People

  • Robert A. Erb

Organizations

  • Franklin Institute

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Chemistry
  • Composite Materials
  • Elastic Properties
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Microcapsules
  • Modulus Of Elasticity
  • Plasticizers
  • Polymeric Films
  • Prostheses And Implants
  • Resins
  • Tensile Strength

Readers

  • Polymer Science and Engineering.
  • Reinforced Composite Materials
  • Trauma Surgery or Emergency Medicine.