DEVELOPMENT OF WOODCERAMICS FROM TROPICAL FLORA
Keywords:adsorption isotherms, electromagnetic shielding, Specific Surface Area, volume electrical resistivity, woodceramics
AbstractWoodceramics are porous carbon or hybrid materials, derived from woody materials impregnated with a thermosetting resin and vacuum carbonized at a high temperature. Woodceramics have become commercially valuable as these are used in many appliances such as heaters, gas filters, absorbents, humidity and temperature sensors. Hence, this study aimed to determine the suitable conditions for producing woodceramics from various materials and their potential applications. The Specific Surface Area (SSA), pore volume, pore diameter, and adsorption isotherm of woodceramics made from Bamboo, Pine, Eucalyptus, Rubberwood, and Oil Palm shell particleboards were obtained using the Brunauer-Emmett-Teller (BET) method. The average pore diameter is classified as being mesoporous (2-50 nm). The SSA and adsorption isotherm results of the woodceramics made from Eucalyptus showed that these species can be used as an activated charcoal and their volume electrical resistivity is similar to that of a semiconductor. When carbonized at maximum temperatures of 800 Â°C and 1,000 Â°C, the electromagnetic shielding effectiveness (ESE) of woodceramics was approximately 20-60 dB within a frequency range of 800-2,200 MHz. This ESE Â Â was higher than that woven from boron carbon fiber, carbon boron, and stainless steel fiber filled thermoplastics. Moreover, the woodceramics production cost was lower than that of using the commercial materials.
Download data is not yet available.
How to Cite
Howpinjai, I., Laemsak, N., & Hengniran, P. (2020). DEVELOPMENT OF WOODCERAMICS FROM TROPICAL FLORA. BIOTROPIA - The Southeast Asian Journal of Tropical Biology, 27(2), 97–103. https://doi.org/10.11598/btb.2020.27.2.1169
LicenseAuthors who publish with this journal agree with the following terms:
- Authors retain copyright and grant the journal right of first publication, with the work 1 year after publication simultaneously licensed under a Creative Commons attribution-noncommerical-noderivatesÂ 4.0 InternationalÂ License that allows others to share, copy and redistribute the work in any medium or format,Â but only where the use is for non-commercial purposesÂ and an acknowledgement of the work's authorship and initial publication in this journal is mentioned.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).