Thermal Stability, Durability, and Service Life Estimation of Woven Flax-Carbon Hybrid Polyamide Biocomposites

Woven flax-carbon hybrid polyamide biocomposites offer a blend of carbon fibers' mechanical strength and flax's environmental advantages, potentially developing material applications. This study investigated their thermal behavior, degradation kinetics, and durability to water uptake and r...

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Bibliographic Details
Published in:Materials 2024-05, Vol.17 (9), p.2020
Main Authors: Bahrami, Mohsen, Abenojar, Juana, Aparicio, Gladis M, Martínez, Miguel Angel
Format: Article
Language:English
Subjects:
Aging
Analysis
Biomedical materials
Carbon fiber reinforced plastics
Carbon fibers
Composite materials
Durability
Energy consumption
Flax
Hybrid composites
Industrial applications
Intermediate water
Kinetics
Laminated materials
Moisture absorption
Moisture resistance
Polyamide resins
Polyamides
Polymers
Relative humidity
Room temperature
Service life assessment
Thermal degradation
Thermal resistance
Thermal stability
Thermodynamic properties
Water absorption
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Summary:Woven flax-carbon hybrid polyamide biocomposites offer a blend of carbon fibers' mechanical strength and flax's environmental advantages, potentially developing material applications. This study investigated their thermal behavior, degradation kinetics, and durability to water uptake and relative humidity exposure and compared them with pure flax and carbon composites with the same matrix. The hybrid composite exhibited intermediate water/moisture absorption levels between pure flax and carbon composites, with 7.2% water absorption and 3.5% moisture absorption. It also displayed comparable thermal degradation resistance to the carbon composite, effectively maintaining its weight up to 300 °C. Further analysis revealed that the hybrid composite exhibited a decomposition energy of 268 kJ/mol, slightly lower than the carbon composite's value of 288.5 kJ/mol, indicating similar thermal stability. Isothermal lifetime estimation, employing the activation energy (E ) and degree of conversion facilitated by the Model Free Kinetics method, indicated a 41% higher service life of the hybrid laminate at room temperature compared to the carbon laminate. These insights are crucial for understanding the industrial applications of these materials without compromising durability.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma17092020