Improvement of the Impact Resistance of Epoxy Prepregs Through the Incorporation of Polyamide Nonwoven Fabric

Авторы: Kondrateva Anastasia, Morozov Oleg, Erdni-Goryaev Erdni, Afanaseva Ekaterina, Avdeev Viktor
Журнал: Materials
Том: 18
Номер: 3
Год издания: 2025
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 661
Последняя страница: 661
DOI: 10.3390/ma18030661
Аннотация: The impact of introducing a nonwoven polyamide PA 12-E material on the mechanical properties of polymer composite materials based on epoxy autoclave prepreg T107 has been investigated. This study demonstrates that the incorporation of nonwoven fabric does not lead to a decrease in the mechanical properties of the composites. A significant advantage of composites reinforced with nonwoven fabric is their enhanced impact resistance. During a free impact with an energy of 6.67 J per 1 mm of the sample, complete breakdown with fiber destruction occurs in samples without nonwoven material. In contrast, samples containing nonwoven material exhibit damage characterized by stratification without compromising the fibers. The compressive strength after impact increased from 260 to 320 MPa with the addition of nonwoven material. Consequently, the proposed modification of the commercial prepreg will expand the material’s range of applications and enhance safety, particularly in aircraft structures.
Добавил в систему: Морозов Олег Сергеевич

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