01988cam a2200337Ma 4500011443454MiAaHDL20141009010000.0m d cr bn ---auaua041122s1970 dcua b f000 0 eng dsdr-uiuc6401410(OCoLC)646406501EGMSTFUIUUNAS 1.14:D-5804NASA-TN-D-5804Sykes, George F.Thermal cracking of phenolic-nylon pyrolysis products on passing through a heated char /George F. Sykes, Jr.NASA TN D-5804Washington, D.C. :National Aeronautics and Space Administration :[For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia 22151],1970.17 p. :ill. ;27 cm.NASA technical note ;D-5804Includes bibliographical references (p. 17).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.Mode of access: Internet.Ablation (Aerothermodynamics)CharThermal properties.Phenols.Pyrolysis.Langley Research Center.United States.National Aeronautics and Space Administration.01144345420101109114042.020141009010000.020141112165512.02025-01-02T19:09:34Z2025-01-02T18:30:02ZSDR-UIUCUNKNOWNloader.pl-003-020BKsdr-uiuc6401410uiugSDRUIUCuiug.30112106780577UIU6401410UIUUIUC20250102googleuiug.301121067805771970pdbibUS fed doc