Pre-Demonstration Development of Controlled-Release Corrosion Inhibitors and Healing Agents as Alternatives to Hexavalent Chromium

Abstract

AMI achieved the scalability of the encapsulation process for two corrosion inhibitors by starting with a thorough assessment of the laboratory scale process, designed to optimize parameters including surfactant type, surfactant concentration, process temperature profile, process duration, and micro particle yield per batch. Evidence of resistance to alkaline cleaners and aircraft deicing fluids and compliance with MIL-PRF-23377 was gathered by replacing the inhibitor package, of a primer that meets the MIL-PRF-23377 requirements, with an encapsulated inhibitor and self-healing microcapsules. The properties of the primer formulation, that were expected to change, were tested to demonstrate that the primer still met the MIL-PRF23377 requirements.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 2019
Accession Number
AD1135490

Entities

People

  • Gerald Wilson
  • Luz M. Calle
  • Mike Mayo
  • Mike Spicer
  • Wenyan Li

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Biomedical
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Air Force
  • Body Weight
  • Carcinoma
  • Cells
  • Chemical Synthesis
  • Chemistry
  • Ecotoxicology
  • Environment
  • Environmental Protection
  • Fish
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Medical Personnel
  • Organic Chemistry
  • Rodents
  • Surface Finishing
  • Urinary Tract
  • Wildlife

Readers

  • Groundwater Contamination Remediation.
  • Military Logistics and Supply Chain Management
  • Surface Coatings Technology.