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| Additional Physical Format: | Online version: Sykes, George F. Thermal cracking of phenolic-nylon pyrolysis products on passing through a heated char. Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia 22151], 1970 (OCoLC)785281108 |
|---|---|
| Material Type: | Government publication, National government publication, Internet resource |
| Document Type: | Internet Resource |
| All Authors / Contributors: |
George F Sykes; United States. National Aeronautics and Space Administration.; Langley Research Center. |
| OCLC Number: | 646406501 |
| Description: | 17 p. : ill. ; 27 cm. |
| Series Title: | NASA technical note, D-5804. |
| Other Titles: | NASA TN D-5804 |
| Responsibility: | George F. Sykes, Jr. |
Abstract:
The pyrolysis products were generated by flash pyrolysis of the heat-shield material in front of the heated char and were analyzed, after passing through the char, by gas chromatography. The change in composition of the pyrolysis products after passing through the char showed that the high molecular weight products cracked to lower molecular weight products, beginning at about '700' C. The low molecular weight products were found to increase with increasing char temperature and, at char temperatures approaching 1000° C, the pyrolysis gases were composed of carbon dioxide, carbon monoxide, water, methane, hydrogen, acetylene, benzene, and cyclopentanone.
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