The development of structural adhesive systems suitable for use with liquid oxygen Summary report, 1 Mar. - 30 Nov. 1967
Structural adhesives prepared from fluorinated polyurethanes for use with liquid oxygen
Hollander, J.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Frictional losses in foam-damped flexible tubes.
Frictional losses in straight tubing and effect of system on ball type valve, using polyurethane foam damped flexible silastic tube
Klinzing, G. E.↗
Behavior of nonlinear viscoelastic material under simultaneous stress relaxation in tension and creep in torsion.
Tension stress and shearing strain vs time for simultaneous stress relaxation and creep in polyurethane
Findley, W. N.↗
Behavior of nonlinear viscoelastic material under simultaneous stress relaxation in tension and creep in torsion.
Tension stress and shearing strain vs time for simultaneous stress relaxation and creep in polyurethane
Findley, W. N.↗
Ablative thermal protection at low heating rates.
Ablative materials thermal protection characteristics at low heating rates evaluated by convective heating tests, stressing polyurethane foam composite
Goldstein, H. E.↗
Phenolic cutter for machining foam insulation
Pre-pregged fiber glass is an efficient abrasive for machining polystyrene and polyurethane foams. It bonds easily to any cutter base made of aluminum, steel, or phenolic, is inexpensive, and is readily available.
Blair, T. A.↗
Preparation of highly fluorinated diols containing ether linkages.
Hydroxy-terminated perfluoroethers and polyurethane resins derived from ethers have outstanding chemical resistance and good thermal properties. They can be used as potting compounds, coatings, and seals. The hydroxy-terminated ethers serve as intermediates in the synthesis of highly fluorinated elastomers and adhesives.
Rochow, S. E.↗
Strain compatibility tests for sprayed foam cryogenic insulation
Mechanical stress applied to foam-coated aluminum alloy specimens maintained at cryogenic temperature simulates actual use conditions of the foam insulation. The testing reveals defects in the polyurethane foam or in the foam to metal bond.
Hill, W. L.↗
The low-cost cryostat
Inexpensive method of fabricating cryostats uses polyurethane, super insulation, fiber glass, and cardboard/plywood. Cryostat weighs 1/10 of Dewar, occupies about same volume, is easy to handle, requires no metal parts, and can be formed into virtually any configuration.
Bronson, J. C.↗
Lightweight, self-evacuated insulation panels
Multilayer insulation of prefabricated panels is developed for cryogenic storage tanks. System utilizes panels of aluminized Mylar separated by sheets of low conductivity polyurethane foam. Panels are self-evacuated by cryopumping of gaseous carbon dioxide at time of use.
Dengler, R. P.↗
Development of nonflammable adhesives Final technical report, 17 Sep. 1968 - 20 Jan. 1970
Development of nonflammable fluorinated polyurethane adhesives for spacecraft systems
Fitzgerald, W. P., Jr.↗
Thin conformal coatings, a boon to the electronic engineer
Thin film polyurethane coatings for printed circuitry
Fisher, J. M., Jr.↗
Reaction of encapsulating foams to specific environmental conditions
Encapsulating polyurethane foam reactions to specific environmental conditions
Walker, H. M.↗
Temperature-dependence of the diffusion constants of rigid, closed-cell foams
Temperature dependence of diffusion coefficient for carbon dioxide filled rigid polyurethane foam, using Fick law
Cuddihy, E. F.↗
Role of scanning electron microscopy in the study of solid propellant combustion. III - The surface structure and profile characteristics of burning composite solid propellants
Composite solid propellants surface structure and profile characteristics burning with various oxidizers and polyurethane binder by scanning electron microscopy
Boggs, T. L.↗
An analytical model for determining the thermal conductivity of closed-cell foam insulation
Closed cell polyurethane foam for cryogenic insulation, determining thermal conductivity and net heat flow by analytical model and test
Hammond, M. B., Jr.↗
Synthesis of a new class of highly fluorinated aliphatic diisocyanates
Synthesis is basis for preparation of polyurethanes that are compatible with liquid oxygen. The two step process preparation from fluorocarbon diacid fluorides is explained in text.
Warner, D. A.↗
Nondestructive testing of bond integrity in foam insulation/aluminum composites
Nondestructive test methods are used for evaluating bond integrity of low-density polyurethane spray-on foam used as cryogenic insulation on aluminum alloy surfaces.
Bankston, B. F.↗