The Effect Of Addition Of Polylactic Acid On The Properties Of Oil Palm Trunk Particleboard And Its Potential As A Phantom Material
| dc.contributor.author | Baskaran, Mohana | |
| dc.date.accessioned | 2017-01-25T01:49:56Z | |
| dc.date.available | 2017-01-25T01:49:56Z | |
| dc.date.issued | 2016-09 | |
| dc.description.abstract | This study was designed to characterize some properties of oil palm trunk particleboard to determine optimum manufacturing conditions, effect of adding polylactic acid (PLA) and its application as phantom material. Particleboard samples were manufactured at a range of manufacturing parameters with pressing temperature of 160 ºC to 200 ºC and pressing time of 20 min to 30 min at target thickness levels of 5 mm, 10 mm and 15 mm to evaluate optimum manufacturing conditions to manufacture oil palm trunk particleboard with density of 0.8 g/cm3. A central composite rotatable design (CCRD) of Response Surface Methodology (RSM) software was used to evaluate mechanical and physical properties to identify the correlation between each parameter. With the average optimum manufacturing condition obtained from first stage, binderless particleboard and particleboard with addition of PLA at target density of 0.8 g/cm3 were manufactured to evaluate the effect of PLA on oil palm trunk particleboard. Besides that, thermal degradation, spectroscopic characterization, crystallinity properties and morphological properties were also determined. Potential use of particleboard as phantom material in the diagnostic energy range was evaluated by determining the mass attenuation coefficients of binderless particleboard and particleboard with addition of PLA. Oil palm trunk particleboards were manufactured at density of 1.0 g/cm3 as to be equivalent to the water phantom and its mass attenuation coefficient was measured at photon energy range of 16.59 – 25.26 keV by employing X-ray fluorescent technique. The mass attenuation properties of oil palm trunk particleboard were compared with calculated mass attenuation coefficient of water by photon energy data base. An X-ray computed tomography (CT) scanner was used to analyze the density distribution inside the particleboard. The finding showed that pressing temperature of 191 ºC and pressing time of 23 min for 5 mm thickness, pressing temperature of 196 ºC and pressing time of 24 min for 10 mm thickness and pressing temperature of 195 ºC and pressing time of 30 min for 15 mm thickness would result in particleboards with ideal properties that met the requirement of Japanese Industrial Standard for board Type 8. Particleboard with addition of PLA exhibited satisfactory mechanical properties based on Japanese Industrial Standard for board Type 8. The mass attenuation coefficients of both types of oil palm trunk particleboards were very near to the calculated values for water. It is noted that binderless oil palm trunk particleboard having the nearest CT number to water as compared to particleboard with addition of PLA. Oil palm trunk particleboard exhibited potential properties for phantom material. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/3566 | |
| dc.subject | Characterize some properties of oil palm trunk particleboard | en_US |
| dc.subject | to determine optimum manufacturing conditions, | en_US |
| dc.title | The Effect Of Addition Of Polylactic Acid On The Properties Of Oil Palm Trunk Particleboard And Its Potential As A Phantom Material | en_US |
| dc.type | Thesis | en_US |
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