What is the effect of silane treatment on the mechanical properties of Cordia dichotoma fibers (CF)?

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Topic
Cordia dichotoma fibers (CF) are natural fibers that have potential for use in composite materials due to their biodegradability, renewability, and lightweight nature. However, their application is limited by weak fiber-matrix adhesion, poor thermal stability, and high moisture absorption. Silane treatment is a surface modification technique that can enhance the compatibility between natural fibers and polymer matrices by forming chemical bridges.
Answer
Silane treatment significantly improves the mechanical properties of Cordia dichotoma fibers. Fibers treated with 1% silane achieved a tensile strength of 105.37 MPa, an elongation of 1.53%, and a modulus of elasticity of 5.14 GPa. These improvements are attributed to the enhanced fiber-matrix bonding and reduced moisture absorption, making CF a more viable reinforcement material for high-performance composites.
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