PMR-15 polyimide modifications for improved prepreg tack

PMR-15 polyimide modifications for improved prepreg tack

The use of mixed solvents and of modified monomeric ester reactants was investigated as a means of improving the tack and drape retention characteristics of PMR-15 polyimide prepreg. Methanol, ethanol, 1-propanol and 1-butanol were used to prepare the esters, prepreg solutions, and T-300 graphite fa...

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1. Verfasser: Vannucci, R. D.
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description The use of mixed solvents and of modified monomeric ester reactants was investigated as a means of improving the tack and drape retention characteristics of PMR-15 polyimide prepreg. Methanol, ethanol, 1-propanol and 1-butanol were used to prepare the esters, prepreg solutions, and T-300 graphite fabric and Celion 6000 unidirectional fiber prepregs. The tack retention characteristics of the T-300 fabric prepreg after exposure to simulated use conditions were determined using a simple lap shear test. Drape was qualitatively assessed by visually monitoring the deformability of the prepreg. Thermo-oxidative stability and mechanical properties retention of the Celion 6000 grahite fiber composites were determined as a function of exposure time in air at 600 F.
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D.</creatorcontrib><description>The use of mixed solvents and of modified monomeric ester reactants was investigated as a means of improving the tack and drape retention characteristics of PMR-15 polyimide prepreg. Methanol, ethanol, 1-propanol and 1-butanol were used to prepare the esters, prepreg solutions, and T-300 graphite fabric and Celion 6000 unidirectional fiber prepregs. The tack retention characteristics of the T-300 fabric prepreg after exposure to simulated use conditions were determined using a simple lap shear test. Drape was qualitatively assessed by visually monitoring the deformability of the prepreg. Thermo-oxidative stability and mechanical properties retention of the Celion 6000 grahite fiber composites were determined as a function of exposure time in air at 600 F.</description><language>eng</language><publisher>Legacy CDMS</publisher><subject>Composite Materials</subject><creationdate>1982</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/19830003905$$EView_record_in_NASA$$FView_record_in_$$GNASA$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Vannucci, R. D.</creatorcontrib><title>PMR-15 polyimide modifications for improved prepreg tack</title><description>The use of mixed solvents and of modified monomeric ester reactants was investigated as a means of improving the tack and drape retention characteristics of PMR-15 polyimide prepreg. Methanol, ethanol, 1-propanol and 1-butanol were used to prepare the esters, prepreg solutions, and T-300 graphite fabric and Celion 6000 unidirectional fiber prepregs. The tack retention characteristics of the T-300 fabric prepreg after exposure to simulated use conditions were determined using a simple lap shear test. Drape was qualitatively assessed by visually monitoring the deformability of the prepreg. Thermo-oxidative stability and mechanical properties retention of the Celion 6000 grahite fiber composites were determined as a function of exposure time in air at 600 F.</description><subject>Composite Materials</subject><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1982</creationdate><recordtype>conference_proceeding</recordtype><sourceid>CYI</sourceid><recordid>eNrjZLAI8A3SNTRVKMjPqczMzUxJVcjNT8lMy0xOLMnMzytWSMsvUsjMLSjKL0tNUSgoSgWidIWSxORsHgbWtMSc4lReKM3NIOPmGuLsoZuXWJwYn1dSVBxvaGlhbGBgYGxpYGpMQBoA4K4p1Q</recordid><startdate>19820101</startdate><enddate>19820101</enddate><creator>Vannucci, R. D.</creator><scope>CYE</scope><scope>CYI</scope></search><sort><creationdate>19820101</creationdate><title>PMR-15 polyimide modifications for improved prepreg tack</title><author>Vannucci, R. D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-nasa_ntrs_198300039053</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1982</creationdate><topic>Composite Materials</topic><toplevel>online_resources</toplevel><creatorcontrib>Vannucci, R. D.</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>Vannucci, R. D.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>PMR-15 polyimide modifications for improved prepreg tack</atitle><date>1982-01-01</date><risdate>1982</risdate><abstract>The use of mixed solvents and of modified monomeric ester reactants was investigated as a means of improving the tack and drape retention characteristics of PMR-15 polyimide prepreg. Methanol, ethanol, 1-propanol and 1-butanol were used to prepare the esters, prepreg solutions, and T-300 graphite fabric and Celion 6000 unidirectional fiber prepregs. The tack retention characteristics of the T-300 fabric prepreg after exposure to simulated use conditions were determined using a simple lap shear test. Drape was qualitatively assessed by visually monitoring the deformability of the prepreg. Thermo-oxidative stability and mechanical properties retention of the Celion 6000 grahite fiber composites were determined as a function of exposure time in air at 600 F.</abstract><cop>Legacy CDMS</cop><oa>free_for_read</oa></addata></record>
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title PMR-15 polyimide modifications for improved prepreg tack
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