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The effect of temperature on fatigue strength of poly(ether‐imide)/multiwalled carbon nanotube/carbon fibers composites for aeronautical application
Author(s) -
Santos Luis F. P.,
Ribeiro Bruno,
Hein Luis R. O.,
Alderliesten René,
Zarouchas Dimitrios,
Botelho Edson C.,
Costa Michelle L.
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49160
Subject(s) - materials science , composite material , carbon nanotube , ultimate tensile strength , composite number , imide , nanocomposite , modulus , nanotube , shear strength (soil) , polymer chemistry , environmental science , soil science , soil water
This work concerns the fatigue behavior at three different temperature conditions (−40, 20, and 80°C) and the addition of multiwalled carbon nanotube (MWCNT) into a carbon‐fiber reinforced poly(ether‐imide) composite. The incorporation of MWCNT into the composite increased the tensile strength and Young's modulus by up 5 and 2%, respectively. At low temperature, the incorporation of the nanoparticles improved the fatigue strength of the laminates by 15%. The shear strength results obtained by interlaminar shear strength and compression shear test tests have shown an increase of about 16 and 58%, respectively, by the introduction of nanotubes into the laminates. Fractographic observations revealed that the surface of carbon nanotube laminate (PEI/MWCNT/CF) presented a ductile behavior, and differences in the fracture aspects of the material compared to the traditional PEI/CF laminate have been observed.