Compatibility of Halthane 88-3 urethane adhesive with the replacement cleaning solvent D-Limonene

Conference · Thu Aug 01 00:00:00 EDT 1991

OSTI ID:5270831

LeMay, J D; Mendoza, B

D-Limonene, (R)1-methyl-4-isopropenyl-1-cyclohexene, has been identified as a leading replacement for chlorinated solvents traditionally used to clean electrical assemblies and critical components in some phases of weapons production. Unfortunately, d-limonene has a much lower vapor pressure than the chlorinated solvents if replaces (<2 torr at ambient). This makes its complete elimination from cleaned subassemblies potentially difficult, and gives rise to concerns about the compatibility of d-limonene with materials in the warhead. During the past year many WR polymers and adhesives have been surveyed for their compatibility with d-limonene. Preliminary test results obtained at Sandia (Albuquerque) and Allied-Signal (KCD) showed that Aluminum/Halthane 88-3/Aluminum joints were destroyed during exposure to saturated d-limonene vapor. The cause of bond failure appeared to be d-limonene induced swelling of the Halthane polymer. This report describes recent work performed at LLNL to study the swelling behavior and bond strength degradation of Halthane 88-3 resulting from exposure to d-limonene vapor.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5270831
• Report Number(s): UCRL-JC-108312; CONF-9110172-4; ON: DE92000490
• Resource Relation: Conference: 17. DOE compatibility and aging and service life conference, Golden, CO (United States), 1-3 Oct 1991
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
42 ENGINEERING
36 MATERIALS SCIENCE
CYCLOALKENES
COMPATIBILITY
HALTHANE
ADHESIVES
MATERIAL SUBSTITUTION
SHEAR
SOLVENTS
SWELLING
VAPORS
ALKENES
FLUIDS
GASES
HYDROCARBONS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYAMIDES
POLYMERS
POLYURETHANES
SYNTHETIC MATERIALS
450100* - Military Technology
Weaponry
&amp; National Defense- Chemical Explosions &amp; Explosives
426000 - Engineering- Components
Electron Devices &amp; Circuits- (1990-)
360603 - Materials- Properties