COMPOSITION OF EPOXYBISMALEIMIDE BINDING AGENT FOR PREPREGS (VERSIONS), METHOD OF OBTAINING EPOXYBISMALEIMIDE BINDING AGENT (VERSIONS), PREPREG AND ARTICLE
FIELD: chemistry. ^ SUBSTANCE: first version of invention claims composition of the following component ratio, wt %: N,N,N',N'-tetraglycidyl-4,4'-diamino-3,3'-dichlordiphenylmethane 24.842.1 and triglycidyl-aminophenol as polyfunctional epoxy resins 11.525.8, polycrystalline powd...
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Sprache: | eng ; rus |
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Zusammenfassung: | FIELD: chemistry. ^ SUBSTANCE: first version of invention claims composition of the following component ratio, wt %: N,N,N',N'-tetraglycidyl-4,4'-diamino-3,3'-dichlordiphenylmethane 24.842.1 and triglycidyl-aminophenol as polyfunctional epoxy resins 11.525.8, polycrystalline powder of N,N'-hexamethylenebismaleimide as bismaleimide 25.841.3, polycrystalline powder of 4,4'-diaminodiphenylsulfone as solidifier 17.422.6. Second version of invention claims composition of the following component ratio, wt %: N,N,N',N'-tetraglycidyl-4,4'-diamino-3,3'-dichlordiphenylmethane 21.649.5 and triglycidyl bisphenol-A ether as polyfunctional epoxy resins 16.132.4, polycrystalline powder of N,N'-hexamethylenebismaleimide as bismaleimide 3.527.0, polycrystalline powder of 4,4'-diaminodiphenylsulfone as solidifier 19.025.8. Method of obtaining the claimed compositions involves addition of polycrystalline 4,4'-diaminodiphenylsulfone powder to homogenous polyfunctional epoxy resin melt during stirring at 120130C in minimum time sufficient for its complete dissolution. Then the temperature of obtained homogenous melt is lowered to 90100C. By further stirring polycrystalline powder of N,N'-hexamethylenebismaleimide is added to the melt in minimum time sufficient for its complete dissolution. Prepreg includes components at the following ratio, wt %: the claimed epoxybismaleimide binding agent 20-48 and fiber filler 52-80. An article is produced by the claimed prepreg modelling. ^ EFFECT: improved durability of binding agent and increased vitrifying temperature and flexural strength of article. ^ 6 cl, 2 tbl, 10 ex |
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