DOI: https://doi.org/10.36873/a , Mahdi Santoso, Yanciluk
PENGARUH EKSTRAKSI AIR PANAS DAN N-HEKSANA TERHADAP KARAKTERISTIK BAHAN BAKU DAN SIFAT REKAT PAPAN PARTIKEL PELEPAH NIPAH
Keywords:Hot water extraction, n-hexane extraction, nipa frond particleboard, natural binder, citric acid.
Nipa (Nypa fruticans Wurmb) is a non wood lignosellulosic materials that potential as raw material of composite
board. One of disadvantage of the nipa fronds was contains are very high extractives and inorganic substances. The
presence of high content of extractives in raw material of particle board potentially be an obstacle in the process of
gluing the composite board. The existing of extractive substances on the surface of the composite board raw materials
contribute to make the bonding process is not going well. On the other side, the utilization of natural binder for non
wood composite is still limited. This research focused to investigated the effects of extractive subtances for bonding
performance of natural binder such as citric acid for nipa fronds particleboard. The particles screened passed through
aperture sizes of 10 mesh and treated with three condition (non extraction, hot water extraction and n -hexana
extraction) were used as materials in this research. Addition of natural binder of 10% based on air dried particles was
done and pressing temperature was set at 180ºC under a pressure of 3,6 MPa during 10 minutes. The physics and
mechanics properties of particleboard was tested by standard JIS A 5908:2003. The results showed that the
extractiction treatments for raw material affects on the properties of the particleboards. Hot water extraction treatment
was able to give the best results. The properties of particleboard was density 0.84 g.cm-3; moisture content 7.44%;
thickness swelling 1,12%; water absorption 21,83%; surface roughness 7.57 ?m; internal bonding 0.49 MPa; modulus
of rupture 10.42 MPa and modulus of elasticity 3.65 GPa. All of the properties of nipa fronds particleboard meet most
of the standards JIS A 5908:2003.
Keywords: Hot water extraction, n-hexane extraction, nipa frond particleboard, natural binder, citric acid.