A5088552171- Natural Fiber Reinforced Composites
- Bamboo properties and applications
- Wood Treatment and Properties
- Innovations in Concrete and Construction Materials
- Geotechnical and construction materials studies
Sumatera Institute of Technology
2021-2024
IPB University
2020
The objective of this study was to investigate the effect alkali-washing with different sodium hydroxide concentrations on chemical compositions steam-treated Betung bamboo strand. Strands were subjected steam treatment at 126 °C for 1 h under 0.14 MPa pressure and followed by washing 1-5% solution 30 sec. alteration structural non-structural components content strands evaluated. Steam treatments various considerably reduced extractive strands, cell wall strand in small degree. FTIR analysis...
Effects of alkali washing were determined after steam treatment Betung bamboo strands relative to the properties oriented strand boards (BOSBs). The subjected at 126 °C for 1 h under 0.14 MPa pressure, followed by with sodium hydroxide solution concentrations ranging from 1% 5% 30 s. Three-layer BOSBs manufactured a target density approximately 0.7 g/cm3 using 8% phenol formaldehyde resin addition wax. shelling ratio was set be 1:1:1. physical and mechanical increased significantly 3%,...
In this work, the physical and mechanical properties of bamboo oriented strand board (BOSB) prepared from alkali-immersed strands were examined. The Dendrocalamus asper modified with alkali treatment by immersing them in 1% sodium hydroxide solution for 1, 2, 3 hours. Three-layers BOSBs (30 x 30 0.9 cm3) using phenol-formaldehyde (PF) adhesive 8% concentration paraffin. According to JIS A 5908:2003 Standard, characteristics BOSB evaluated (JSA, 2003). study showed that improved dimensional...
Abstract Betung bamboo (Dendrocalamus Asper) has recently attracted interest as a sustainable reinforcement fiber in (polymer) composite materials. Utilization of an advantages and disadvantages. It short growth cycle, lightweight, good mechanical properties, but with poor wettability, dimensional instability, low resistance againts biodeterioration agent. Some efforts have been devoted to alter enhance its especially wettability properties. Heat treatment under various temperature can...
This research aimed to analyze the change in chemical composition of betung bamboo (Dendrocalamus asper) strands after alkali immersion treatment under various times. The culms were converted into with target length, width, and thickness 70, 25, 0.5 mm, respectively. Strands immersion-treated 1% NaOH solution for 1, 2, 3 h. Preparation powder component analysis refers Technical Association Pulp Paper Industry (TAPPI) standard T 264 cm-07 regarding preparation wood test samples analysis....
Abstract Bamboos are often used due to their abundance, fast growth rate, cheap price, ductility, and formability in the sector of transportation, musical instrument, cooking ware, etc. For construction purposes, Dendrocalamus asper , (locally known as “Bambu betung”), is bamboo composites. The properties highly improved by using phenolic resins (phenol-formaldehyde) an adhesive Bamboo stronger more susceptible any liquid. liquid most common enemy plant-based structure softening effect....
This study aimed to examine the qualities of bamboo-oriented strand board (BOSB) made from Dendrocalamus asper bamboo strands, both with and without steam treatment. Furthermore, effect exposure length natural weathering on physical mechanical characteristics BOSB was examined. The treatment lasted one hour at 126°C a pressure 0.14 MPa. Methylene diphenyl diisocyanate (MDI) paraffin were utilized as adhesives additives, concentrations 5% 1%, respectively, based oven-dried weight. exposed in...
Biopellets from gamal wood (Gliricidia sepium) as a biomass energy resource could be an alternative to replace fossil fuels due having met standards based on moisture content, ash fixed carbon, calorific value, and density. Unfortunately, they still had high levels of volatile matter. Robusta coffee husk was material with nitrogen which is suspected being able bind aromatic substances in organic compounds. This study aims evaluate the quality biopellets determine optimum composition husk....
Bamboo has good prospects for composite raw materials such as Oriented Strand Board (OSB) product. Previous research shown that steam and rinsing with water 1% NaOH solution treatments of strand improved the properties OSB, which might be caused by changing in chemical components content bamboo. This study aimed to determine change sembilang bamboo (Dendrocalamus giganteus Munro), black (Gigantochloa nigrocillata Kurz.), tali (G. apus (Bl.ex Schult.f.)) due treatment. The were analyzed...
This study aimed to analyze the effect of pre-heat treatment on bamboo strand properties and its impact resulting bamboo-oriented board (BOSB). Giant (Dendrocalamus asper (Schult.) Backer) with a density 0.53 g cm−3 was converted into strands. These strands were pre-heat-treated at 140 160 °C for duration 1, 2, 3 h. Changes in chemical composition due subsequent assessed. Fourier-transform infrared spectroscopy (FTIR) X-Ray diffraction analysis (XRD) used determine changes The BOSB panels...
Bamboo was a material with enormous potential to be used as raw for various purposes. This has good properties structural purposes such buildings and furniture or converted composite product bamboo oriented strand board (BOSB). study aimed determine the wettability colour change of Dendrocalamus asper strands after alkali immersing treatment 1% NaOH solution. The treatments were carried out 1, 2, 3 hours, respectively. surfaces is quantified by computing value K parameter contact angle rate...
Post-treatment of bamboo-oriented strand board (BOSB) through thermal modification can be an alternative to improve BOSB quality. This study aimed analyze the effect post-thermal treatment duration on physical and mechanical properties BOSB. Three-layers with a target density 0.7 g/cm3 was made core layer perpendicular surface bonded 8% phenol-formaldehyde resin. The produced then thermally-modified at 160°C for 1, 2, 3 h. were determined based JIS A 5908-2003 standard. results showed that...
Abstract Oil palm trunk has become one of the waste that could damage environment. Efforts be made to minimize impact oil trunk’s existence were turn into composite products. A product from trunks was blockboard. used as cores on block boards. stems raw material still have weaknesses. This weakness low dimensional stability due hygroscopic properties. The treatment done increase while improving adhesive quality heat treatment. In this study, 140 °C and 160 for 1, 2, 3 hours carried out....
The abundance, rapid growth characteristics and good mechanical properties have made betung bamboo as alternative materials to replace the slow growing wood. To adress susceptibility insects water attack, making of composites, using resin matrix, has been widely practiced. Thus, surface strands are crucial determine optimum interaction with resin. This study evaluate effect heat treatment improve strands, such wettability color change. Beforehand, freshly cut was cut, cleaned sand-grinded....