Karakteristik Oriented Strand Board dari Kayu Akasia dan Afrika Berdasarkan Penyusunan Arah Strand
The research objectives arc to evaluate physical and mechanical properties of OSB based on strands
orientation; and to evaluate physical and mechanical properties of OSB made from akasia wood (Acacia mangium Wild) and afrika wood (Maesopsis eminii Engl). Akasia and afrika wood are used for OSB strand material with phenol formaldehyde (PF) as adhesives and addition of paraffin. OSB made in this research is consist of three plies whereas are differed into eight (8) strand orientations. In the making process, hot press was carried out at 160OC and pressure 25kg.cm-2 for 15 minutes. Determination of OSB physical and mechanical properties is referred to JIS A 5908-2003. Result showed that strand orientations has no affect to OSB physical properties except for linicr swelling 24h, but it significantly influence all mechanical properties of OSB. Wood species have an effect on mechanical properties of OSB in the dry test, wet MOE lengthwise test and OSB physical properties, particularly to OSB density
and water absorbing capability at 2h and 24h. All of OSB physical properties arc meet JIS A 5908-2003 standard, but not all of the mechanical properties such as dry MOE lengthwise, dry MOE and MOR widthwise. The best physical and mechanical properties is presented by OSB made from akasia wood in strand orientation F, G, Band C whereas all parameters meet JIS A 5908-2003 standard. In comparation with strand orientation B that is frequent used in industry, strand orientation F and G arc proficient to raise the modulus elasticity value (MOE) and strength (MOR) as much as 167.81-231.65% and 89.73-109.87%, respectively; especially in widthwise board application. Furthermore, strand orientation F and G arc more flexible as structural components.
Keywords: oriented strand board, phenol formaldehyde, strand orientation
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- 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).