Synthesis and characterization of nano active filler of pumice particle produced by sol-gel process with different precipitation temperatures for enhancing the impact properties of GFRP composite

Name: Kuncoro Diharjo.

Organization : Sebelas Maret University. Engineering Faculty

Email : kuncorodiharjo@fi.uns.ac.id

Name: Andry Rakhman.

Organization : Sebelas Maret University. Engineering Faculty

Name: Wijang Wisnu Raharjo.

Organization : Sebelas Maret University. Engineering Faculty

Name: Venty Suryanti.

Organization : Sebelas Maret University. Faculty of Mathematics and Natural Sciences

Name: Sunarto Kaleg.

Organization : National Research and Innovation Agency. Research Center for Transportation Technology

keyword: Glass fiber reinforced plastics.

LCSH: Silica -- Analysis.

; Nanosilica.

LCSH: Pumice.

; Sol-gel process.

LCSH: Fiber-reinforced plastics.

LCSH: Nanocomposites (Materials)

Abstract: Pumice, a volcanic mineral abundant in Indonesia that can contain up to 70 percent silica, is a great source of nanosilica material. The mesoporous amorphous nanosilica, called nano active filler of pumice particle (nAFPP), has been successfully synthesized using a sol-gel process with different precipitation temperatures at 45, 55, and 65 °C. The nAFPP was characterized using SEM-EDX, Multi-Point BET, and BJH techniques for surface properties and morphologies studies, FTIR for chemical bond studies, XRD for crystallinity properties, and TGA/DTA characterization for thermal stability studies. The influence of nanosilica filler in forming GFRP/nAFPP composites was evaluated using impact testing and morphological analysis with SEM on the fracture surfaces. The result shows that the nanosilica of nAFPP has good purity (93.68 percent), mesoporous amorphous, nano-sized silica particles, and a pore diameter of 4.36-6.97 nm. The spectra of FTIR display the absorption peaks of the functional group silanol (Si-O-Si). The GFRP/nAFPP composites have higher impact strength than those with pumice particles or without particles. The highest impact strength (97.37 KJ/m2) is achieved in the GFRP composite with 2.5 of nAFPPP, and its addition until 10 decreases the impact strength slightly. Further research on this material is needed to accelerate its application."

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2025

Modified: 2568-12-15

Issued: 2025-12-15

บทความ/Article

application/pdf

BibliograpyCitation : APPLIED SCIENCE AND ENGINEERING PROGRESS. vol. 18, no. 4 (Oct-Dec. 2025), p. 1-17.

eng

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