Last edited by Faurr
Friday, July 24, 2020 | History

2 edition of An Investigation of the degradation of Fluorinated Ethylene Propylene (FEP) copolymer thermal blanketing materials aboard LDEF and in the laboratory found in the catalog.

An Investigation of the degradation of Fluorinated Ethylene Propylene (FEP) copolymer thermal blanketing materials aboard LDEF and in the laboratory

An Investigation of the degradation of Fluorinated Ethylene Propylene (FEP) copolymer thermal blanketing materials aboard LDEF and in the laboratory

  • 92 Want to read
  • 13 Currently reading

Published by National Aeronautics and Space Administration, Jet Propulsion Laboratory, California Institute of Technology, National Technical Information Service, distributor in Pasadena, Calif, [Springfield, Va.? .
Written in English

    Subjects:
  • Ceramics.,
  • Space vehicles.

  • Edition Notes

    StatementA.E. Stiegman ... [et al.].
    SeriesNASA contractor report -- NASA-CR 192824., NASA contractor report -- NASA CR-192824.
    ContributionsStiegman, A. E., Jet Propulsion Laboratory (U.S.)
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17678945M

    Large pieces of the outer layer of MLI (aluminized Teflon® fluorinated ethylene propylene (Al-FEP)) were cracked in several locations around the telescope. A piece of curled-up Al-FEP was retrieved by the astronauts and was found to be severely embrittled, as witnessed by ground by: 5. Fluorinated electrolytes based on fluoroethylene carbonate (FEC) have been considered as promising alternative electrolytes for high-voltage and high-energy capacity lithium-ion batteries (LIBs). However, the compatibility of the fluorinated electrolytes with graphite negative electrodes is unclear. In this paper, we have systematically investigated, for the first time, the stability of Cited by: 9.

    You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. The Complete Book On Rubber Chemicals by Npcs Board Of Consultants & Engineers, ISBN: , Rs. / US$.

    D. M. Laura, H. Keskkula, J. W. Barlow, and D. R. Paul, “Effect of Glass Fiber and Ethylene-Propylene Rubber Content on Tensile and Impact Properties of Nylon 6,” Polymer, 41, (). J. Chu and D. R. Paul, “Blends Of SAN With Methyl Methacrylate Copolymers of 2-Hydroxyethyl Methacrylate and 4-Methacryloxyethyl Trimellitic Anhydride.   Zatkoff O-Ring Guide 1. O-RING GUIDE // 2. 2 WARNING: OFFER OF SALE These products can expose you to chemicals including carbon black (airborne and extracts), antimony trioxide, titanium dioxide, silica (crystalline), di(2-ethylhexyl)phthalate, ethylene thiourea, acrylonitrile, 1,3-butadiene, epichlorohydrin, toluenediisocyanate, tetra uoroethylene, ethylbe.


Share this book
You might also like
Fannys Dream

Fannys Dream

Britain in India

Britain in India

The funeral and wedding handbook

The funeral and wedding handbook

Wiley Select Registry of Common Spectra

Wiley Select Registry of Common Spectra

Transforming your leadership culture

Transforming your leadership culture

Limited livelihoods

Limited livelihoods

Computers and the renaissance of cartography

Computers and the renaissance of cartography

Syllabus in an introduction to a philosophy of education

Syllabus in an introduction to a philosophy of education

The Wall Street Journal complete estate-planning guidebook

The Wall Street Journal complete estate-planning guidebook

fourfold vision

fourfold vision

reasons of the heart [microform]

reasons of the heart [microform]

Jurassic and Early Cretaceous selachians--focus on southern Scandinavia

Jurassic and Early Cretaceous selachians--focus on southern Scandinavia

Practical astrology for everybody

Practical astrology for everybody

Clevelands lighthouses

Clevelands lighthouses

LE FIGARO

LE FIGARO

Utmost savagery

Utmost savagery

Memorial tributes delivered in Congress

Memorial tributes delivered in Congress

Analogical-vocabulary

Analogical-vocabulary

An Investigation of the degradation of Fluorinated Ethylene Propylene (FEP) copolymer thermal blanketing materials aboard LDEF and in the laboratory Download PDF EPUB FB2

An Investigation of the degradation of Fluorinated Ethylene Propylene (FEP) copolymer thermal blanketing materials aboard LDEF and in the laboratory Author: A E Stiegman. Teflon ® fluorinated ethylene propylene (FEP) is used on the Hubble Space Telescope (HST) as the outer layer of multilayer insulation (MLI) blankets.

During space shuttle servicing missions (SM) to HST through thickness cracks were observed in the FEP layers. Material brought to Earth for investigation showed signs of severe by: 2.

The results support chain scission as the primary mechanism of degradation of fluorinated ethylene propylene on the Hubble Space Telescope and indicate the significance of the on-orbit temperature.

Thermal degradation pathway products of the oxazolidinone antibiotic Zyvox™.In a study of the degradation chemistry of the drug Zyvox, the first member of a new class of oxazolidinone antibiotics, Hadden et al.

utilized long-range 1 H– 15 N GHMBC data to characterize the state of the oxazolidinone ring nitrogen and side chain amide nitrogen in the series of degradants formed.

Typical. Surface and Bulk Degradation of Teflon(R) FEP Retrieved from the Hubble Space Telescope Solar Arrays Article (PDF Available) in High Performance Polymers 20(4). Fluorinated ethylene propylene (FEP) Up to °C or °C ( °F) Polyoxymethylene (e.g., polyacetal) Up to °C or higher; may degas May use up to cycles at °C, but it may begin to degrade, emitting formaldehyde: Polyacrylic (e.g., PMMA) Poor to fair; some highly resistant grades: Polyamide (e.g., Nylon) Poor to excellent.

The polymers are well soluble in fluorinated solvents like Freon ® and 1,3-bis(trifluoromethyl) benzene, in semi-polar solvents like chloroform, THF or lower esters and also in hydrocarbons with polymers containing dodecyl methacrylate. @article{osti_, title = {Radiation resistance of elastomers}, author = {Lee, G}, abstractNote = {Various data has indicated that some elastomers have much higher radiation resistance than Viton.

Nine samples of elastomers were irradiated with gamma rays. Two Ethylene Propylene Diene compounds, EPDM's, were found to exhibit acceptable properties for o-rings after radiation levels of. Perfluoroalkyl and polyfluoroalkyl substances and perfluorocarbons defined. As defined above, PFASs are aliphatic substances containing one or more C atoms on which all the H substituents present in the nonfluorinated analogues from which they are notionally derived have been replaced by F atoms, in such a manner that PFASs contain the perfluoroalkyl moiety C n F 2n+1 –.Cited by: “An Investigation of the Degradation of Fluorinated Ethylene Propylene (FEP) Copolymer Thermal Blanketing Materials Aboard LDEF and in the Laboratory” JPL Publication 91– Google Scholar [6]Cited by: 1.

EPA/ TR INVESTIGATION OF SELECTED POTENTIAL ENVIRONMENTAL CONTAMINANTS: EPOXIDES Dennis A. Bogyo Sheldon S. Lande William M. Meylan Philip H. Howard Joseph Santodonato March FINAL REPORT Contract No. SRC No. L Project Officer - Frank J.

Letkiewicz Prepared for: Office of Toxic Substances U.S. Environmental Protection. Organic syntheses based on photochemical reactions play an important role in the medical, pharmaceutical, and polymeric chemistry.

For years, photochemistry was performed using high-pressure mercury lamps and immersion-wells. However, due to excellent yield, control of temperature, selectivity, low consumption of reagents and safety, the microreactors made of fluorinated ethylene propylene Author: Tomasz Szymborski, Paweł Jankowski, Dominika Ogończyk, Piotr Garstecki.

Improving the flame retardancy of ethylene vinyl acetate composites by incorporating layered double hydroxides based on Bayer red mud. Qian, Yi / Jiang, Kangjia /. AbstractLiquid chromatography of polymers is traditionally a slow technique with analysis times of typically 30 min per sample.

For the application of liquid chromatographic techniques in combinatorial materials research the analysis time per sample must be reduced considerably. For fast high performance liquid chromatography (HPLC) small columns and new stationary phases with Cited by: 1. TRD () Rev.∅ 08/16/04 Page 2 of 19 TABLE OF CONTENTS Discussion Guide to Compatibility Key Chemical Compatibility Guide for Commonly Used Elastomers for O-RingsFile Size: 2MB.

The review summarizes current trends and developments in the polymerization of alkylene oxides in the last two decades sincewith a particular focus on the most important epoxide monomers ethylene oxide (EO), propylene oxide (PO), and butylene oxide (BO).

Classical synthetic pathways, i.e., anionic polymerization, coordination polymerization, and cationic polymerization of epoxides Cited by: USA US08/, USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords layer coating aluminum cured sacrificial Prior art date Legal status (The legal status is an assumption and is not a legal by: The direct oxidation of ethylene to ethylene oxide can be represented by the following reaction: 0 CH2»CH2 + 1/2 02 ^2—~ CH2CH2 This process eliminates the disposal problems created by the chlorinated by- products produced via chlorohydrination.

2,3-Dibromo-l-propanol At present, 2,3-dibrotao-l-propanol is mainly used as a flame retardant. Sensitivity of Plasma Fluorinated Polyimide and Poly(tetrafluoroethylene) to High-Energy Ion Beams During Rutherford Backscattering Spectroscopy F. Emmi L. Matienzo. @article{osti_, title = {Microorganisms and methods for degrading plant cell walls and complex hydrocarbons}, author = {Polne-Fuller, M}, abstractNote = {This patent describes a biologically pure multinucleated marine amoeba having the identifying characteristics of ATCC The amoeba being capable of digesting algal cell walls and having the further capacity to degrade paraffin.

The most widely manufactured products are ethylene oxide adducts although mixed ethylene and propylene or butylenes oxide compounds are or can be produced.

Ethylene Oxide Adducts. One main requirement of the nonionic hydrophobe used for ethylene oxide addition is that it contains reactive hydrogen the most important hydrophobes are given in.Journal of Polymer Materials-An International Journal is published quarterly (4 issues per year), which covers broadly most of the important and fundamental areas of Polymer Science and reports reviews on current topics and original research results on synthesis of monomers and polymers, polymer analysis, characterization and testing, properties of polymers, structure-property.Publications >Refereed Research Papers >Book Chapters >Invited Review Papers >Refereed Conference Proceedings/Book Chapters >Conference Proceedings Extended Abstracts (not refereed) >Papers Presented >Invited Talks Refereed Research Papers (in Reverse Order) S.

A. Burns, P. L. Valint, Jr. and J. A. Gardella, Jr., “Determination of Critical Micelle Concentration of Aerosol-OT Using .