Thermomechanical and Morphological Studies of CFRP Tested in Different Environmental Conditions

Thermomechanical and Morphological Studies of CFRP Tested in Different Environmental Conditions. Barile, C., Casavola, C., Vimalathithan, P. K., Pugliese, M., & Maiorano, V. MATERIALS, JAN 1, 2019.
doi abstract bibtex

The present work describes the mechanical characterization combined with the thermal degradation kinetics of Carbon Fiber Reinforced Polymers (CFRP). The thermal degradation kinetics of CFRP have never been studied in the past. In that regard, the present work focuses on studying the thermal degradation kinetics of CFRP tested mechanically at different environmental conditions. Tensile tests were performed on the specimens with different lay-ups at room temperature, elevated temperature (71 degrees C), and cryogenic conditions (-54 degrees C), and the same specimens were used for thermal degradation kinetic studies. Mechanical tests show different responses respect to the different environmental conditions and different fibers orientation. On the other hand, the thermogravimetric results, mass loss, and derivative mass loss, show no significant difference in the degradation of CFRP tested at different temperatures. However, the thermal degradation kinetics shows more insight into the degradation pattern of the materials. The activation energy of degradation shows that the degradation of materials subjected to elevated conditions increases rapidly in the later stages of degradation, suggesting the formation of high char yield. The varying activation energy has been related to different degradation mechanisms. Lastly, the morphology of the materials was studied under SEM to understand the structural change in the material after tested in different weather conditions.

@article{ ISI:000456410200063,
Author = {Barile, Claudia and Casavola, Caterina and Vimalathithan, Paramsamy
   Kannan and Pugliese, Marco and Maiorano, Vincenzo},
Title = {{Thermomechanical and Morphological Studies of CFRP Tested in Different
   Environmental Conditions}},
Journal = {{MATERIALS}},
Year = {{2019}},
Volume = {{12}},
Number = {{1}},
Month = {{JAN 1}},
Abstract = {{The present work describes the mechanical characterization combined with
   the thermal degradation kinetics of Carbon Fiber Reinforced Polymers
   (CFRP). The thermal degradation kinetics of CFRP have never been studied
   in the past. In that regard, the present work focuses on studying the
   thermal degradation kinetics of CFRP tested mechanically at different
   environmental conditions. Tensile tests were performed on the specimens
   with different lay-ups at room temperature, elevated temperature (71
   degrees C), and cryogenic conditions (-54 degrees C), and the same
   specimens were used for thermal degradation kinetic studies. Mechanical
   tests show different responses respect to the different environmental
   conditions and different fibers orientation. On the other hand, the
   thermogravimetric results, mass loss, and derivative mass loss, show no
   significant difference in the degradation of CFRP tested at different
   temperatures. However, the thermal degradation kinetics shows more
   insight into the degradation pattern of the materials. The activation
   energy of degradation shows that the degradation of materials subjected
   to elevated conditions increases rapidly in the later stages of
   degradation, suggesting the formation of high char yield. The varying
   activation energy has been related to different degradation mechanisms.
   Lastly, the morphology of the materials was studied under SEM to
   understand the structural change in the material after tested in
   different weather conditions.}},
DOI = {{10.3390/ma12010063}},
Article-Number = {{63}},
ISSN = {{1996-1944}},
ResearcherID-Numbers = {{Barile, Claudia/O-9901-2016
   }},
ORCID-Numbers = {{Pugliese, Marco/0000-0002-9502-8457
   Barile, Claudia/0000-0002-8682-6078
   Paramsamy Nadar Kannan, Vimalathithan/0000-0002-9685-1242
   Casavola, Caterina/0000-0002-2378-2186}},
Unique-ID = {{ISI:000456410200063}},
}

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In that regard, the present work focuses on studying the thermal degradation kinetics of CFRP tested mechanically at different environmental conditions. Tensile tests were performed on the specimens with different lay-ups at room temperature, elevated temperature (71 degrees C), and cryogenic conditions (-54 degrees C), and the same specimens were used for thermal degradation kinetic studies. Mechanical tests show different responses respect to the different environmental conditions and different fibers orientation. On the other hand, the thermogravimetric results, mass loss, and derivative mass loss, show no significant difference in the degradation of CFRP tested at different temperatures. However, the thermal degradation kinetics shows more insight into the degradation pattern of the materials. 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