Shelf Life Degradation of Selected Anaerobic Threadlocking Adhesives at Various Storage Temperatures.

Abstract

This study addresses the shelf life degradation of three commercially available anaerobic adhesives maintained at 0 C, 22 C, and 50 C. A titrimetric procedure was developed to monitor the change in the adhesive peroxide initiator concentration over an 18 month period, The change was then related to a corresponding decrease in the breakaway and prevailing torque strengths of bonded nuts and bolts prepared with aged adhesives. It was determined that elevated temperature storage caused degradation of the adhesives and that the titrimetric method could be useful as a quality control method were such storage may be unavoidable. Keywords: Adhesives, Anaerobic adhesives, Adhesive bonding, Shelf life, Fastenings, Hydroperoxides, Potentiometric analysis.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1987
Accession Number
ADA187712

Entities

People

  • Paul R. Bergquist
  • Stanley E. Wentworth

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Adhesive Bonding
  • Adhesives
  • Air Force
  • Bonding
  • Engineering
  • Governments
  • Information Processing
  • Materials
  • Measurement
  • Mechanical Properties
  • Military Research
  • Physical Properties
  • Polymers
  • Quality Control
  • Shelf Life
  • Standards
  • Viscosity

Readers

  • Electrical Engineering
  • Organic Chemistry
  • Surface Coatings Technology.