Improving the Physico-Mechanical Properties of Eco-Friendly Composite Made from Bamboo

Abstract:

This research focused on physical and mechanical properties of biocomposite made from bamboo and citric acid as natural binder. Bamboo particles was mixed with citric acid at 0 – 40 wt% resin content based on air-dried particles and each mixture was hot pressed at 180 °C for 10 min. The result showed that addition of citric acid could improve significantly the physical and mechanical properties of particleboard. The thickness swelling was 50 % for bamboo binderless particleboard (0 wt%), whereas it decreased to 7 % under a resin content of 10 wt%. The optimum resin content in this study was 30 wt%, while the modulus of rupture dan the modulus of elasticity were 14 MPa and 4.5 GPa, respectively. The ester linkages were detected by Fourier transform infrared spectroscopy, indicating that carboxyl groups from citric acid reacted with hydroxyl groups from bamboo to produce better properties of particleboard, especially its dimensional stability. Based on these results, it was concluded that citric acid could be as a potential natural binder for bamboo particleboard.

• Periodical: Advanced Materials Research (Volume 896)
• Pages: 562-565
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.896.562
• Online since: February 2014
• Authors: Ragil Widyorini*, Ari Puspa Yudha, Ramadhanu Isnan, Ali Awaluddin, Tibertius Agus Prayitno, Agus Ngadianto, Kenji Umemura
• Keywords: Bamboo, Binderless Board, Citric Acid (CA), Natural Binder, Physico-Mechanical Properties

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