Polyurethane Foams for Aircraft Shock Mounts. I. Polyether Based Foams.
Progress rept. Oct 77-Jul 78,
NAVAL SURFACE WEAPONS CENTER WHITE OAK LAB SILVER SPRING MD
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The objective of this program was to develop flexible foam systems which would meet the specifications outlined in MIL-F-81334BAS. This report deals with the results obtained from a series of one-shot polyether foams derived from mixtures of polyoxytetramethylene glycol, polyoxypropylene and ethylene oxide terminated polyoxypropylene polyols. Polyol ratios, surfactant type, surfactant concentration and stannous octoatetert-amine ratios were studied to determine their influence on foam properties. Properties such as density, compressibility, rebound, tensile strength, elongation, hydraulic fluid resistance, porosity and vibration damping were obtained on the most promising systems.
- Couplers, Fasteners and Joints