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<p>Mechanical, shear, wear, fatigue, and creep properties of cellulose reinforced vinyl ester composites produced from pomegranate peel and Rosella stem fiber were investigated in this research. Surface modification was carried out using silane. Using 3-Aminopropyltrimethoxysilane as a surface treatment, reinforcing materials were subjected to ASTM-standard testing for mechanical, shear, wear, fatigue, and creep properties. The experimental results showed that under different test settings, the performance of the composites treated with silane was much improved. Specific mechanical parameters, such as tensile strength (135&#xa0;MPa), flexural strength (196.8&#xa0;MPa), impact energy (4.3&#xa0;J), and interlaminar shear strength (40.1&#xa0;MPa), were improved in the composite MR22 that was reinforced with silane-treated fiber and 2 vol.% cellulose. By strengthening the fiber-matrix interface, silane treatment increased the composite's endurance under different stress situations, according to scanning electron microscopy (SEM) study of the failure mechanism and surface topography. With 35,148 cycles at 25% UTS, 34,545 cycles at 50% UTS, and 33,818 cycles at 75% UTS, the MR22 composite demonstrated the longest fatigue life. Contrarily, a cellulose reinforced composite (MR23) treated with 4 vol.% silane demonstrated best wear resistance, with a specific wear rate of 0.034 mm<sup>3</sup>/Nm and a coefficient of friction (COF) of 0.52. Also, at 5000&#xa0;s, strain values of 0.0049, 0.0246, and 0.0595, respectively, were obtained for MR23, indicating superior creep resistance.</p>

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Eco-Friendly Vinyl Ester Composites using Roselle Stem Fiber and Cellulose Extracted from Pomegranate Peel

  • 期刊论文

  • 发表日期：

    2026年2月16日

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  • P. Prabhu,
  • G. Mahendran,
  • M. Arulmurugan,
  • S. Rajendran

摘要

Mechanical, shear, wear, fatigue, and creep properties of cellulose reinforced vinyl ester composites produced from pomegranate peel and Rosella stem fiber were investigated in this research. Surface modification was carried out using silane. Using 3-Aminopropyltrimethoxysilane as a surface treatment, reinforcing materials were subjected to ASTM-standard testing for mechanical, shear, wear, fatigue, and creep properties. The experimental results showed that under different test settings, the performance of the composites treated with silane was much improved. Specific mechanical parameters, such as tensile strength (135 MPa), flexural strength (196.8 MPa), impact energy (4.3 J), and interlaminar shear strength (40.1 MPa), were improved in the composite MR22 that was reinforced with silane-treated fiber and 2 vol.% cellulose. By strengthening the fiber-matrix interface, silane treatment increased the composite's endurance under different stress situations, according to scanning electron microscopy (SEM) study of the failure mechanism and surface topography. With 35,148 cycles at 25% UTS, 34,545 cycles at 50% UTS, and 33,818 cycles at 75% UTS, the MR22 composite demonstrated the longest fatigue life. Contrarily, a cellulose reinforced composite (MR23) treated with 4 vol.% silane demonstrated best wear resistance, with a specific wear rate of 0.034 mm3/Nm and a coefficient of friction (COF) of 0.52. Also, at 5000 s, strain values of 0.0049, 0.0246, and 0.0595, respectively, were obtained for MR23, indicating superior creep resistance.