fabrication of seamless Teflon propellant expulsion bladders
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fabrication of seamless Teflon propellant expulsion bladders by Richard Nelson Porter

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Published by Jet Propulsion Laboratory, California Institute of Technology in Pasadena, Calif .
Written in English


  • Rocket engines -- Fuel systems.,
  • Polytef.

Book details:

Edition Notes

Statement[by] R. N. Porter.
SeriesJPL technical report no. 32-914
ContributionsUnited States. National Aeronautics and Space Administration.
LC ClassificationsTL784.F8 P67
The Physical Object
Paginationiv, 23 p.
Number of Pages23
ID Numbers
Open LibraryOL5532465M
LC Control Number67008373

Download fabrication of seamless Teflon propellant expulsion bladders


The manufacture of seamless expulsion bladders from aqueous Teflon dispersions was accomplished suc-cessfully, and several space vehicles have been lofted with Teflon ex-pulsion bladders aboard. However, the missions have been of short duration and have required expulsion only at mid-course guidance or at landing. Colloidal Science of Flotation - CRC Press Book Keeping pace with explosive developments in the field, Colloidal Science of Flotation reviews and updates the fundamentals of the bubble-particle collection phenomenon using a self-consistent approach that helps readers understand the hydrodynamic aspects of bubble-particle collection. Low vulnerability ammunition (LOVA) propellant are currently being developed globally toreplace all types of single-base, double-base and triple-base gun propellants, because LOVApropellants. The PTFE target was 2 inch in diameter with 8 mm in thickness. After fabricating W nanorods, Teflon was coated (∼15 nm during 15 min deposition) on top of the grown W nanorods (formed at optimum angular speed of 10 RPM) by utilizing the RF sputter deposition at an optimum glancing angle of Cited by:

Bell Aerosystems Company has been conducting a radia- tion test program in connection with a USAF liquid rocket propul- sion system contract. This system employs an actual positive expulsion bladder-tankage unit containing storable liquid pro- pellants. The bladder was teflon and the tank system was loaded approximately 25^ full of propellant. Books by Language Journal of materials engineering. Additional Collections Journal of paediatric dentistry. Featured movies All video . Aluminum agglomeration reduction in a composite propellant using tailored Al/PTFE particles. In solid propellants, aluminum is widely used to improve performance, yet theoretical specific. Full text of "NASA Technical Reports Server (NTRS) Material Compatibility with Space Storable Guidebook" See other formats.

tory require the use of expulsion bladders for storable propellants in the space environment which not only resist the corrosive action of liquid propellants, such as nitrogen tetroxide and hydrazine, but also act as effective barriers against the loss of propellants or premature mixing. Maximum hoop strain of × 10 − 2 is obtained in the middle of the unaged propellant grain surface. Whereas, maximum bond stress of × 10 − 2 kg / mm 2 is calculated at the tip of the free flap. The values remained the same at the end of each cycle. The maximum values for the aged propellant are given in Table 3 and they show the same trend as in the ignition pressurization by: Fig. 1a illustrates the fabrication process of samples, in which the liquid state PDMS serves as the only raw different samples were harvested through altering the heating temperature. The relationship between the surface wettability (water CAs/SAs) and the heating temperature was investigated as shown in Fig. 1b. The CA of original stainless steel mesh is approximate Cited by: Full text of "NASA Technical Reports Server (NTRS) Space shuttle seal material and design development for earth storable propellant systems" See other formats.