Degradation Mechanisms of Pigmented Coatings

Abstract

Oxygen transport in polymonomethylsiloxane was investigated and compared to polydimethylsiloxane properties. The effects of rutile pigmentation on the permeability, diffusion, and solubility of oxygen through polymonomethylsiloxane were investigated. Permeability and diffusion constants decreased with increasing pigment concentration and there was no evidence of oxygen sorption on the pigment. Relative adhesion of polydimethylsiloxane and polymonomethylsiloxane on rutile was predicted from water contact angles. Polymonomethylsiloxane was proposed to have the greater adhesion but was small in either case. The stability of dimethyl and monomethyl polysiloxanes pigmented with rutile and zinc oxide was evaluated in a simulated solar ultraviolet environment.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1972
Accession Number
AD0753410

Entities

People

  • Joe K. Cochran Jr.
  • William B. Campbell

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Adhesion
  • Air Force
  • Ceramic Materials
  • Chemical Synthesis
  • Chemistry
  • Color Centers
  • Crystal Structure
  • Diffusion
  • Heat Treatment
  • Materials
  • Materials Laboratories
  • Optical Properties
  • Particle Size
  • Reflectance
  • Refractive Index
  • Sorption
  • Transport Properties

Readers

  • Materials Science and Engineering.
  • Petroleum Engineering
  • Surface Coatings Technology.