Wayan Darmawan
Department of Forest Products, Faculty of Forestry and Environment, IPB University

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Fast-Growing Wood-Polymer Nano Composite Characteristics through Nano-SiO2 Impregnation Istie Rahayu; Abdul Salam Min Rohmatillah; Esti Prihatini; Wayan Darmawan; Gilang Dwi Laksono; Vera Junita Sitanggang
Wood Research Journal Vol 13, No 2 (2022): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2022.13.2.69-78

Abstract

Ganitri (Elaeocarpus sphaericus (Gaertn.) K. Schum.) and jabon (Anthocephalus cadamba) are fast-growing wood species that have low strength and durability class. One of methods for improving the characteristics of ganitri and jabon woods is impregnation. This study objectives were to analyze the effect of impregnation of Melamine Formaldehyde Furfuryl Alcohol (MFFA) copolymer and 0.5% Nano-SiO2 on the physical, mechanical and durability properties of ganitri and jabon woods. The impregnation process was carried out by applying a 0.5 bar vacuum for 1 hour and followed by 2 bar pressure for 2 hours. The results showed that impregnation with MFFA and Nano-SiO2 could improve optimally the physical and mechanical properties and durability of fast-growing woods
Fast-Growing Wood-Polymer Nano Composite Characteristics through Nano-SiO2 Impregnation Istie Rahayu; Abdul Salam Min Rohmatillah; Esti Prihatini; Wayan Darmawan; Gilang Dwi Laksono; Vera Junita Sitanggang
Wood Research Journal Vol 13, No 2 (2022): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2022.13.2.69-78

Abstract

Ganitri (Elaeocarpus sphaericus (Gaertn.) K. Schum.) and jabon (Anthocephalus cadamba) are fast-growing wood species that have low strength and durability class. One of methods for improving the characteristics of ganitri and jabon woods is impregnation. This study objectives were to analyze the effect of impregnation of Melamine Formaldehyde Furfuryl Alcohol (MFFA) copolymer and 0.5% Nano-SiO2 on the physical, mechanical and durability properties of ganitri and jabon woods. The impregnation process was carried out by applying a 0.5 bar vacuum for 1 hour and followed by 2 bar pressure for 2 hours. The results showed that impregnation with MFFA and Nano-SiO2 could improve optimally the physical and mechanical properties and durability of fast-growing woods
Enhancing Dimensional Stability of Sengon Wood through Synergistic Citric Acid-Glycerol Cross-Linking and SiO2/TiO2 Nanocomposite Impregnation Sartika; Istie Sekartining Rahayu; Wayan Darmawan; Andi Detti Yunianti; Esti Prihatini; Gilang Dwi Laksono; Rohmat Ismail
Jurnal Sylva Lestari Vol. 14 No. 2 (2026): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v14i2.1372

Abstract

Sengon wood (Falcataria moluccana) is a fast-growing, low-quality species. In this research, nanoparticle-based impregnation was used to improve the quality and characteristics of sengon wood. SiO2 nanoparticles derived from bamboo leaves were synthesized using the sol-gel method, while TiO2 nanoparticles and SiO2/TiO2 nanocomposites were synthesized using the hydrothermal method. A mixture of citric acid, glycerol, and nanoparticles (SiO2, TiO2, and SiO2/TiO2 composite) was formulated as an impregnation solution at 1% concentration. Sengon wood impregnation was conducted using a vacuum-pressure method. The physical properties tested included weight percent gain (WPG), bulking effect (BE), anti-swelling efficiency (ASE), water uptake (WU), and density. The size of the synthesized nanoparticles was analyzed using a particle size analyzer (PSA). The impregnated sengon wood was characterized using Fourier transform infrared spectroscopy (FTIR) to identify functional groups and X-ray diffraction (XRD) to determine the degree of crystallinity. PSA analysis showed that the material used in the impregnation process is nanoscale (< 100 nm) and exhibits the best dispersion stability in the SiO2/TiO2 nanocomposite. Nanoparticle-impregnated sengon wood exhibited reduced WU and improved dimensional stability compared to untreated samples, especially in citric acid-glycerol and composite nanoparticle treatments. FTIR analysis identified the formation of ester bonds and the reduction of hydroxyl groups, and XRD analysis showed a decrease in crystallinity upon impregnation with nanoparticles and a citric acid-glycerol mixture. Overall, the use of citric acid-glycerol with the nanocomposite showed effectiveness in improving the dimensional stability and physical properties of sengon wood. Keywords: citric acid-glycerol, dimensional stability, sengon, SiO2/TiO2 nanocomposite, wood modification