Accession Number:

ADA065361

Title:

Improved Adhesive Bond Permanence with Reactive Organosilane Coupling Agents

Descriptive Note:

Technical rept

Corporate Author:

ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER DOVER NJ LARGE CALIBER WEAPONSYSTEMS LAB

Personal Author(s):

Report Date:

1978-11-01

Pagination or Media Count:

36.0

Abstract:

Five reactive organosilane coupling agents, Dow Corning Z6020, Z6032, Z6040, Z6062 and Union Carbide Corp. A-1100 were evaluated as adhesion promoters to improve the adhesive bond strength of 2024T3, 6061T4 aluminum alloys and 302 stainless steel and to protect the bonds against the deleterious effects of water. The organosilane coupling agents, mercaptopropyltrimethoxysilane D.C.Z6062, and glycidoxypropyltrimethoxysilane D.C.Z6040 generally showed better bond strength intially and after adverse exposure than the control samples when bonded with room temperature-curing epoxy resin. The glycidoxypropyltrimethoxysilane Z6040 showed bettter initial bond strength than the control samples and good retention of bond integrity after adverse exposure when used with aluminum alloys and an intermediate cure temperature 121 C 250 F epoxy adhesive. The remaining organosilanes did not show appreciable improvement over the control samples. Author

Subject Categories:

  • Adhesives, Seals and Binders
  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE