Accession Number : ADA308139

Title :   Experimental Evaluation of the Adhesive Degradation Potential of Aqueous Cleaning Processes.

Descriptive Note : Final rept.,

Corporate Author : BATTELLE COLUMBUS DIV OH

PDF Url : ADA308139

Report Date : 25 JAN 1993

Pagination or Media Count : 152

Abstract : The Aerospace and Metrology Center (AGMC), located at the Newark Air Force Base (NAFB) OH, repairs inertial-navigation and guidance equipment for the United States (US) Air Force and other Department of Defense (DoD) components. Thousands of these delicate and sophisticated electromechanical devices are repaired each year at the Center. The current repair processes includes cleaning of these devices with chlorofluorocarbons and chlorinated hydrocarbon cleaners. Driven by safety and environmental concerns, AGMC is in the process of replacing these environmentally unacceptable cleaning agents with more environmentally friendly water-based detergent. A recent Presidential Executive Order has been issued reinforcing the need to implement replacement cleaning systems with a revised implementation date of 1995. An experimental program has been completed which exposed selected epoxy and sealant materials to commercially available detergents in a statistically designed exposure matrix. Ultrasonic and immersion cleaning over a 12-cycle simulated life cycle at room temperature, 133 F, and 190 F was studied. Bulk effect and interfacial bonding responses were determined on the exposed samples. Freon 113, 1,1,1-trichloroethane, and pH-controlled water were used as controls.

Descriptors :   *DEGRADATION, *ELECTROMECHANICAL DEVICES, *CLEANING COMPOUNDS, *ADHESIVES, TEST AND EVALUATION, DEPARTMENT OF DEFENSE, INTERFACES, WATER, CARBON, ROOM TEMPERATURE, REPAIR, FLUORINE, SAMPLING, SAFETY, ORGANIC COMPOUNDS, REPLACEMENT, SOLVENTS, DETERGENTS, BONDING, AIR FORCE FACILITIES, INERTIAL NAVIGATION, EPOXY COMPOUNDS, ETHANES, IMMERSION, SEALING COMPOUNDS, FLUORINATED HYDROCARBONS, METROLOGY, CHLORINE, CHLORINATED HYDROCARBONS.

Subject Categories : Organic Chemistry
      Physical Chemistry
      Adhesives, Seals and Binders
      Solvents, Cleaners, and Abrasives
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE