Polyurethane Foams for Aircraft Shock Mounts. I. Polyether Based Foams.

摘要

The objective of this program was to develop flexible foam systems which would meet the specifications outlined in MIL-F-81334B(AS). This report deals with the results obtained from a series of one-shot polyether foams derived from mixtures of poly(oxytetramethylene) glycol, poly(oxypropylene) and ethylene oxide terminated poly(oxypropylene) polyols. Polyol ratios, surfactant type, surfactant concentration and stannous octoate/tert-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.