|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
Easy processable tris-phthalonitrile based resins and carbon fabric reinforced composites fabricated by vacuum infusionстатья
- Авторы: Yakovlev M.V., Kuchevskaia M.E., Terekhov V.E., Morozov O.S., Babkin A.V., Kepman A.V., Avdeev V.V., Bulgakov B.A.
- Журнал: Materials Today Communications
- Год издания: 2022
- Издательство: Elsevier Ltd.
- Местоположение издательства: Amsterdam, Netherlands
- Номер статьи: 104738
- DOI: 10.1016/j.mtcomm.2022.104738
- Аннотация: Easy-processable phthalonitrile resins were prepared from tris-phthalonitrile phosphate monomer TPP (tris(3-(3,4-dicyanophenoxy)phenyl)phosphate), bis-phthalonitrile RP (bis (3,4-dicyanophenoxy)benzene) and novel viscosity reducing comonomer CPN (4-(4-cyanophenoxy)benzene-1,2-dicarbonitrile). It was shown that TPP is more resistant to hydrolysis than reported phosphate based phthalonitriles (k = 8.2·10-4 s-1 at 65℃ and pH 10). Two different type of curing agents: aromatic diamine DDS and 4-(4-aminophenoxy) phthalonitrile APN were used to study their effect on properties of the obtained resins and composites. Carbon fabric composites with APN-cured matrix fabricated by vacuum infusion demonstrated compression strength up to 633 MPa and 100% retention of ILSS after oxidative aging for 200 h at 300℃. Post-curing of the matrix at 375℃ resulted in growth of Tg but at the same time microcracking occurrence in the composite leading to decrease in mechanical properties and thermal aging sustainability.
- Добавил в систему: Булгаков Борис Анатольевич