Physical-Mechanical Properties of Laminated Board Made from Oil Palm Trunk (Elaeis guineensis Jacq.) Waste with Various Lamina Compositions and Densifications
| Autor: | Muh Yusram Massijaya, Yusuf Sudo Hadi, Imam Busyra Abdillah, Dita Sari Prabuningrum |
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| Rok vydání: | 2020 |
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| Zdroj: | Journal of the Korean Wood Science and Technology. 48:196-205 |
| ISSN: | 2233-7180 1017-0715 |
| DOI: | 10.5658/wood.2020.48.2.196 |
| Popis: | The purpose of this study was to investigate a method for improving the physical and mechanical properties of laminated board made from oil palm trunk (OPT). The effects of pretreating the lamina with heat-pressure and altering the lamina composition of the laminated board were investigated. The outer third of OPT in cross-section had high-density wood, while the underlying third had low to medium density. The hot press was applied to pretreat the lamina that had low to medium density. The lamina were 1.5 cm in thickness, 5 cm in width, and 65 cm in length. The hot press was applied at 2.94 MPa or 4.41 MPa at 150 ℃ for 60 minutes, and the target thickness of the lamina was 1 cm. The three layers of the laminated board samples were bonded with isocyanate adhesive at a glue spread of 300 g/㎡ and cold pressed at 0.98 MPa for 3 h. The laminated board samples were tested according to Japanese Agricultural Standard (JAS) 234-2003. The results showed that the densification of the inner lamina did not significantly affect the physical-mechanical properties of the laminated board produced. However, the laminated board made with high-density laminas for the outer layers fulfilled the JAS 234-2003 standard for the modulus of elasticity and the modulus of rupture. |
| Databáze: | OpenAIRE |
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