Sifat Fisis dan Mekanis Papan Laminasi Bambu Betung (Dendrocalamus asper) pada Berbagai Jenis Perekat

Abstract

Betung bamboo can be made into laminated board because it has a stem wall thickness of 10 mm – 30 mm. Laminated board is a board made of solid wood pieces, by combining and applying adhesive and pressing using cold pressing in the manufacture of the product. This study aims to analyze the physical and mechanical properties of laminated boards from betung bamboo on various types of adhesives. In addition, this research was also to obtain optimal results for the type of adhesive on the quality of the bamboo betung laminated board. Betung laminated boards are arranged into 3 layers with a size of 30 x 15 x 1.5 cm using isocyanate adhesive (85:15) with a coating weight of 280 g/m2 , epoxy adhesive (1:1) with a coating weight of 120 g/m2 , and adhesive PVAc with a melting weight of 280 g/m2 . Betung laminated boards use cold pressing for 24 hours and conditioning for 10 days. The results of the research on physical properties showed that the density values ranged from 0.89 g/cm3–0.95 g/cm3 , the moisture content values ranged from 7.64%–24.37%, and the delamination values ranged from 0%– 100%. The results of the mechanical properties test showed that modulus of elasticity values ranged from 109,460 kg/cm2–177,942 kg/cm2 , modulus of rupture values ranged from 709.07 kg/cm2–1,569.82 kg/cm2 , and shear strength values ranged from 24.95 kg/cm2–60.03 kg/cm2 .