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<p>The aim of providing a better cleaner environment is increased recent days by utilizing less dense and recycled material into the composite and it has been researched widely by various research scholars. The present study utilized the silane-grafted and heat-treated neem fruit husk-derived biosilica particles, silane-modified recycled PET core, better strength providing surface-treated glass fiber-reinforced vinyl ester composite. The composite also tested under temperature and water aging condition to better evaluate their performance for real-world applications. The result concludes that composite A2 with 3 vol.% of heat-treated and silane-modified biosilica, PET core, and glass fiber-reinforced vinyl ester shows maximum tensile, flexural, compression, impact, ILSS, rail shear strength of 139.5&#xa0;MPa, 202&#xa0;MPa, 189&#xa0;MPa, 7.23&#xa0;J, 24.51&#xa0;MPa, 21.65&#xa0;MPa and better fatigue life counts of 36,671 for 25% UTS, 32,940 for 50% UTS, and 29,756 for 75% UTS, respectively. Furthermore, the composite A3 with 5 vol.% of heat-treated and silane-modified biosilica PET core, and glass fiber-reinforced vinyl ester shows better hardness flammability and water absorption properties of 88 shore-d, 8.14&#xa0;mm/min, and 0.25% rate, in which it is 38% and 50% better flammability water absorption rate than the composite A. Furthermore, among the aging composites, the temperature-aged composite B2 with 3 vol.% of heat-treated and silane-modified biosilica, PET core, and glass fiber shows maximum mechanical, flammability, fatigue, and water absorption properties when compared to the without filler-reinforced composite A. This study demonstrates how waste biomass and recycled product are optimized in a productive way and creation of less dense and sustainable material, which makes the study novel and path for future exploration for futuristic applications.</p>

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Investigation on surface-treated and heat-treated biosilica, and PET core/glass fiber-reinforced polymer sandwich composite and their effects on temperature and warm water aging

  • 期刊论文

  • 发表日期：

    2025年6月19日

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  • C. Satheesh,
  • M. Vinothkumar,
  • K. Senthil Nathan,
  • S. Krishna Mohan

摘要

The aim of providing a better cleaner environment is increased recent days by utilizing less dense and recycled material into the composite and it has been researched widely by various research scholars. The present study utilized the silane-grafted and heat-treated neem fruit husk-derived biosilica particles, silane-modified recycled PET core, better strength providing surface-treated glass fiber-reinforced vinyl ester composite. The composite also tested under temperature and water aging condition to better evaluate their performance for real-world applications. The result concludes that composite A2 with 3 vol.% of heat-treated and silane-modified biosilica, PET core, and glass fiber-reinforced vinyl ester shows maximum tensile, flexural, compression, impact, ILSS, rail shear strength of 139.5 MPa, 202 MPa, 189 MPa, 7.23 J, 24.51 MPa, 21.65 MPa and better fatigue life counts of 36,671 for 25% UTS, 32,940 for 50% UTS, and 29,756 for 75% UTS, respectively. Furthermore, the composite A3 with 5 vol.% of heat-treated and silane-modified biosilica PET core, and glass fiber-reinforced vinyl ester shows better hardness flammability and water absorption properties of 88 shore-d, 8.14 mm/min, and 0.25% rate, in which it is 38% and 50% better flammability water absorption rate than the composite A. Furthermore, among the aging composites, the temperature-aged composite B2 with 3 vol.% of heat-treated and silane-modified biosilica, PET core, and glass fiber shows maximum mechanical, flammability, fatigue, and water absorption properties when compared to the without filler-reinforced composite A. This study demonstrates how waste biomass and recycled product are optimized in a productive way and creation of less dense and sustainable material, which makes the study novel and path for future exploration for futuristic applications.