Scholarlink

<p>The present investigation focuses on the development and characterization of sustainable palm spathe fiber reinforced epoxy composites incorporated with algal biomass powder as a bio-filler. The composites were fabricated using the hand layup technique with varying algal biomass filler concentrations of 1, 3, and 5 vol.% while maintaining a constant palm spathe fiber loading of 40 vol.%. Prior to fabrication, the palm spathe fibers were subjected to silane treatment using 3-APTMS to improve interfacial adhesion between the hydrophilic fibers and hydrophobic epoxy matrix. The developed composites were evaluated for tensile, flexural, impact, hardness, dielectric, and thermal properties. The experimental results revealed significant enhancement in the mechanical performance of the composites with the incorporation of algal biomass powder. Among all the samples, ESA1 containing 3 vol.% algal biomass exhibited optimum performance with tensile strength of nearly 39&#xa0;MPa, representing about 178.5% improvement over neat epoxy. Similarly, the flexural load and impact strength improved by approximately 114.2% and 127.7%, respectively, compared to plain epoxy resin. Hardness also increased progressively with filler loading, with ESA2 exhibiting the maximum Shore D hardness of 86. Dielectric studies conducted over the frequency range of 1&#xa0;kHz to 50&#xa0;MHz indicated that both dielectric constant and dielectric loss decreased with increasing frequency due to reduced polarization effects. ESA1 exhibited the highest dielectric constant of approximately 5.1, corresponding to nearly 59.3% improvement over neat epoxy. Thermal analysis through TGA/DTA demonstrated enhanced thermal stability and increased residual char formation with filler incorporation. ESA1 achieved the highest thermal stability with nearly 80% improvement in residual mass compared to neat epoxy. The overall findings indicate that algal biomass powder effectively enhanced interfacial bonding, mechanical behavior, dielectric performance, and thermal stability of palm spathe fiber reinforced epoxy composites, making them promising eco-friendly materials for lightweight structural and electrical insulation applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Influence of algal biomass powder on the interfacial bonding and mechanical behavior of palm spathe fiber-based epoxy composite

  • 期刊论文

  • 发表日期：

    2026年7月4日

查看全文
  • Ravindra Pratap Singh,
  • Vemuri Sailaja,
  • Aashim Dhawan,
  • Deepak Minhas,
  • M. Sreenivasa Reddy,
  • Baskaran Kuppusamy,
  • V. Mohanavel

摘要

The present investigation focuses on the development and characterization of sustainable palm spathe fiber reinforced epoxy composites incorporated with algal biomass powder as a bio-filler. The composites were fabricated using the hand layup technique with varying algal biomass filler concentrations of 1, 3, and 5 vol.% while maintaining a constant palm spathe fiber loading of 40 vol.%. Prior to fabrication, the palm spathe fibers were subjected to silane treatment using 3-APTMS to improve interfacial adhesion between the hydrophilic fibers and hydrophobic epoxy matrix. The developed composites were evaluated for tensile, flexural, impact, hardness, dielectric, and thermal properties. The experimental results revealed significant enhancement in the mechanical performance of the composites with the incorporation of algal biomass powder. Among all the samples, ESA1 containing 3 vol.% algal biomass exhibited optimum performance with tensile strength of nearly 39 MPa, representing about 178.5% improvement over neat epoxy. Similarly, the flexural load and impact strength improved by approximately 114.2% and 127.7%, respectively, compared to plain epoxy resin. Hardness also increased progressively with filler loading, with ESA2 exhibiting the maximum Shore D hardness of 86. Dielectric studies conducted over the frequency range of 1 kHz to 50 MHz indicated that both dielectric constant and dielectric loss decreased with increasing frequency due to reduced polarization effects. ESA1 exhibited the highest dielectric constant of approximately 5.1, corresponding to nearly 59.3% improvement over neat epoxy. Thermal analysis through TGA/DTA demonstrated enhanced thermal stability and increased residual char formation with filler incorporation. ESA1 achieved the highest thermal stability with nearly 80% improvement in residual mass compared to neat epoxy. The overall findings indicate that algal biomass powder effectively enhanced interfacial bonding, mechanical behavior, dielectric performance, and thermal stability of palm spathe fiber reinforced epoxy composites, making them promising eco-friendly materials for lightweight structural and electrical insulation applications.