Utilization of Waste Stem of Oilpalm For The Manufacture of Particle Board Composite Sound Absorbency

  • Budi Istana Enggeneering Faculty of Universitas Muhammadiyah Riau
  • Abrar Ridwan Science Faculty of Universitas Muhammadiyah Riau
  • Yeeri Badrun Science Faculty of Universitas Muhammadiyah Riau
  • Sri Fitria Retnawaty Science Faculty of Universitas Muhammadiyah Riau


A common problem experienced by people in Indonesia is the increase in
pollution, one of which is noise pollution (noise). Therefore, in this study a composite
board is intended to be used as a sound absorber. This study aims to determine the
acoustic properties of particle board made from palm frond waste. Composite boards
are made from palm oil midrib waste using urea formaldehyde matrix as an adhesive.
The composite board is made with 10%, 15% adhesive fraction and then the absorption
coefficient test is carried out. The results obtained in the test showed that the average
board density obtained was 0.402 g/cm3, 0.601 g/cm3 and 0.922 g/cm3 for the 10%
adhesive board while for the 15% adhesive the average board density produced was
0.406 g/cm3, 0.618 g/cm3, 0.955 g/cm3. Judging from the resulting particle board
included is in the category of medium quality particle board. For testing the absorption
of particle board produced at a frequency of 500 Hz as the mean of 0.9, it is included
in the category of high-quality particleboard according to ISO 11654 standard.


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