Characterization of PMR-15 polyimide composition in thermo-oxidatively exposed graphite fiber composites

Characterization of PMR-15 polyimide composition in thermo-oxidatively exposed graphite fiber composites

The contributions of individual resin components to total resin weight loss in 600 F air aged Celion 6000/PMR-15 polyimide composites were determined from the overall resin weight loss in the composite by chemically separating the PMR-15 matrix resin into its monomeric components. The individual res...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: Alston, W. B.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Nonmetallic Materials
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator Alston, W. B.
description The contributions of individual resin components to total resin weight loss in 600 F air aged Celion 6000/PMR-15 polyimide composites were determined from the overall resin weight loss in the composite by chemically separating the PMR-15 matrix resin into its monomeric components. The individual resin components were also analyzed by spectroscopic techniques in order to elucidate curing and degradation mechanisms of the PMR-15 matrix resin. The isothermal weight loss of the individual resin components during prolonged 600 F thermo-oxidative aging of the composite was correlated to the changes observed in the Fourier Transform infrared spectra and Fourier Transform nuclear magnetic resonance spectra of the individual resin components. The correlation was used to identify the molecular site of the thermo-oxidative changes in PMR-15 polyimide matrix resin during 600 F curing the prolonged 600 F thermo-oxidative aging.
format Conference Proceeding
fullrecord <record><control><sourceid>nasa_CYI</sourceid><recordid>TN_cdi_nasa_ntrs_19800020023</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>19800020023</sourcerecordid><originalsourceid>FETCH-nasa_ntrs_198000200233</originalsourceid><addsrcrecordid>eNqFi0EKwjAQRbtxIeoNXMwFAq1F0HVR3Agi7svYTM1AkglJkNbTW0TcCh_-4r03L0xjMGKXKfILM4sH6eFyvqpqC0HsyI41QScuSOIPZw_ZUHSiZGA9NU-yI9AwCaThETEYzgQ93yn-QkrLYtajTbT6_qJYHw-35qQ8Jmx9jqmt9ruyLDfT6voPfgOB2Tyw</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>conference_proceeding</recordtype></control><display><type>conference_proceeding</type><title>Characterization of PMR-15 polyimide composition in thermo-oxidatively exposed graphite fiber composites</title><source>NASA Technical Reports Server</source><creator>Alston, W. B.</creator><creatorcontrib>Alston, W. B.</creatorcontrib><description>The contributions of individual resin components to total resin weight loss in 600 F air aged Celion 6000/PMR-15 polyimide composites were determined from the overall resin weight loss in the composite by chemically separating the PMR-15 matrix resin into its monomeric components. The individual resin components were also analyzed by spectroscopic techniques in order to elucidate curing and degradation mechanisms of the PMR-15 matrix resin. The isothermal weight loss of the individual resin components during prolonged 600 F thermo-oxidative aging of the composite was correlated to the changes observed in the Fourier Transform infrared spectra and Fourier Transform nuclear magnetic resonance spectra of the individual resin components. The correlation was used to identify the molecular site of the thermo-oxidative changes in PMR-15 polyimide matrix resin during 600 F curing the prolonged 600 F thermo-oxidative aging.</description><language>eng</language><publisher>Legacy CDMS</publisher><subject>Nonmetallic Materials</subject><creationdate>1980</creationdate><rights>Copyright Determination: GOV_PUBLIC_USE_PERMITTED</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,780,800</link.rule.ids><linktorsrc>$$Uhttps://ntrs.nasa.gov/citations/19800020023$$EView_record_in_NASA$$FView_record_in_$$GNASA$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Alston, W. B.</creatorcontrib><title>Characterization of PMR-15 polyimide composition in thermo-oxidatively exposed graphite fiber composites</title><description>The contributions of individual resin components to total resin weight loss in 600 F air aged Celion 6000/PMR-15 polyimide composites were determined from the overall resin weight loss in the composite by chemically separating the PMR-15 matrix resin into its monomeric components. The individual resin components were also analyzed by spectroscopic techniques in order to elucidate curing and degradation mechanisms of the PMR-15 matrix resin. The isothermal weight loss of the individual resin components during prolonged 600 F thermo-oxidative aging of the composite was correlated to the changes observed in the Fourier Transform infrared spectra and Fourier Transform nuclear magnetic resonance spectra of the individual resin components. The correlation was used to identify the molecular site of the thermo-oxidative changes in PMR-15 polyimide matrix resin during 600 F curing the prolonged 600 F thermo-oxidative aging.</description><subject>Nonmetallic Materials</subject><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1980</creationdate><recordtype>conference_proceeding</recordtype><sourceid>CYI</sourceid><recordid>eNqFi0EKwjAQRbtxIeoNXMwFAq1F0HVR3Agi7svYTM1AkglJkNbTW0TcCh_-4r03L0xjMGKXKfILM4sH6eFyvqpqC0HsyI41QScuSOIPZw_ZUHSiZGA9NU-yI9AwCaThETEYzgQ93yn-QkrLYtajTbT6_qJYHw-35qQ8Jmx9jqmt9ruyLDfT6voPfgOB2Tyw</recordid><startdate>19800101</startdate><enddate>19800101</enddate><creator>Alston, W. B.</creator><scope>CYE</scope><scope>CYI</scope></search><sort><creationdate>19800101</creationdate><title>Characterization of PMR-15 polyimide composition in thermo-oxidatively exposed graphite fiber composites</title><author>Alston, W. B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-nasa_ntrs_198000200233</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1980</creationdate><topic>Nonmetallic Materials</topic><toplevel>online_resources</toplevel><creatorcontrib>Alston, W. B.</creatorcontrib><collection>NASA Scientific and Technical Information</collection><collection>NASA Technical Reports Server</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Alston, W. B.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Characterization of PMR-15 polyimide composition in thermo-oxidatively exposed graphite fiber composites</atitle><date>1980-01-01</date><risdate>1980</risdate><abstract>The contributions of individual resin components to total resin weight loss in 600 F air aged Celion 6000/PMR-15 polyimide composites were determined from the overall resin weight loss in the composite by chemically separating the PMR-15 matrix resin into its monomeric components. The individual resin components were also analyzed by spectroscopic techniques in order to elucidate curing and degradation mechanisms of the PMR-15 matrix resin. The isothermal weight loss of the individual resin components during prolonged 600 F thermo-oxidative aging of the composite was correlated to the changes observed in the Fourier Transform infrared spectra and Fourier Transform nuclear magnetic resonance spectra of the individual resin components. The correlation was used to identify the molecular site of the thermo-oxidative changes in PMR-15 polyimide matrix resin during 600 F curing the prolonged 600 F thermo-oxidative aging.</abstract><cop>Legacy CDMS</cop><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_nasa_ntrs_19800020023
source NASA Technical Reports Server
subjects Nonmetallic Materials
title Characterization of PMR-15 polyimide composition in thermo-oxidatively exposed graphite fiber composites
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-18T19%3A28%3A25IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-nasa_CYI&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=proceeding&rft.atitle=Characterization%20of%20PMR-15%20polyimide%20composition%20in%20thermo-oxidatively%20exposed%20graphite%20fiber%20composites&rft.au=Alston,%20W.%20B.&rft.date=1980-01-01&rft_id=info:doi/&rft_dat=%3Cnasa_CYI%3E19800020023%3C/nasa_CYI%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true