Title: The Effect of a Dip/Spin-Coating Method on the Physico-Mechanical Properties of TiO2-Grafted Flax-Reinforced Poly (Lactic Acid) Composites

Authors: Fatemeh Rahimi, M. Reza Foruzanmehr, Mathieu Robert

DOI: 10.33599/nasampe/c.24.0279

Abstract: Natural fibers, with their superior properties, specifically as renewable materials, are good competitors for petroleum-based reinforcements in the polymer composite industry. This study aims to enhance the properties of flax natural fiber by creating a thin layer of TiO2 using dip/spin coating methodology. Applying TiO2 helps to enhance the strength of the interface between natural fiber and polymer matrix, and forming a thin coated layer brings the opportunity to improve the performance of film. For this aim, flax fabric was coated at a spin speed of 3000 rpm. Then composite was manufactured by hot-press molding. One composite was also prepared using raw fabric as a reference. Scanning electron microscopy was carried out to investigate the morphology and dispersion of coating on the fabric surface, and the quality of adhesion between fabric and matrix. Results clearly depicted better adhesion was reached after modification. This data was supported by a tensile test. Where composite prepared with coated fabric reached better tensile strength. In this research, using the dip/spin coating technique controlled the thickness of TiO2 film allowing the decrease in water uptake capacity of the fibers. Finally, thermal gravimetry analysis showed an improvement in the sample thermal resistance as compared to the reference.

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Conference: CAMX 2024 | San Diego CA

Publication Date: 2024/9/9

SKU: TP24-0000000279

Pages: 10

Price: $20.00