Performance Evaluation of Oil Palm Trunk Starch as Binder, Modified by Sodium Trimetaphosphate

Mohd Zulhairie, Razali and Junidah, Lamaming and Othman, Sulaiman and Rokiah, Hashim and Mohammed, Nasir and Mohd Ezwan, Selamat and Nadiah, Jumhuri and Salim, Hiziroglu (2022) Performance Evaluation of Oil Palm Trunk Starch as Binder, Modified by Sodium Trimetaphosphate. Journal of Engineering and Science Research, 7 (1). pp. 5-11. ISSN 2289-7127

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Abstract

The objective of this study was to evaluate the properties of particleboard prepared from starch-based adhesive, modified with sodium trimetaphosphate as a binder. Three-layer experimental panels were manufactured from a homogenous mixture of Acacia mangium and rubberwood. Panels were prepared from two different target densities of 0.60 g/cm3 and 0.80 g/cm3 and four different combinations of adhesive. The four combinations of adhesives were sequentially urea-formaldehyde (UF), native oil palm trunk starch (OPT-starch), sodium trimetaphosphate (STMP), modified starch, and STMP-starch mixed with 2% UF. Adhesive properties were analyzed by thermogravimetric (TGA), differential calorimetry (DSC), X-ray diffractometer (XRD), and scanning electron microscopy (SEM). The prepared panels were evaluated for their physical and mechanical properties. An experimental panel with 0.80 g/cm3 density showed better mechanical and physical properties compared to 0.60 g/cm3 . Oil palm trunk starch modified with sodium trimetaphosphate exhibited an improvement in physical and mechanical properties when it was used in combination with UF resin.

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