Karakteristik Laminasi Bambu Pada Papan Jabon

Belangke bamboo can be used to produce laminated boards due to its good mechanical properties. This study investigates the physical and mechanical properties of laminated boards from belangke bamboo at various immersion times of citric acid. Bamboo lamina is arranged into laminated boards (3 layers of bamboo lamina) with dimensions of 30 x 15 x 1.5 cm (Length x Width x Thickness). Laminated boards were glued using isocyanate adhesive with glue spread level of 280 g/m2. Testing of this laminated board includes physical and mechanical properties. Testing of physical properties, including weight percent gain (WPG), density, moisture content (MC), and delamination. Meanwhile, mechanical properties include modulus of elasticity (MOE), modulus of rupture (MOR), and shear strength. The physical and mechanical properties of belangke bamboo laminated in this study resulted in WPG values ranging from 7.00-10.00%, density with a range of 0.79–0.86 g/cm3, moisture content with a range of 11.86-12.67%, delamination ranged from 0.00-7.77%, MOE ranged from 113686-127378 kg/cm2, MOR ranged from 516.97–578.95 kg/cm2, and shear strength ranged from 20.53–27.73 kg/cm2. The best of the physical and mechanical properties of citric acid-modified belangke laminated boards in this study were laminated boards with 24-hour immersion time

Section: Modulus Of Elasticitycontrasting

confidence: 79%

Section: Densitymentioning

confidence: 61%

Physical and mechanical properties of belangke (Gigantochloa pruriens) bamboo laminated boards modified with citric acid

Hartono,

Akbar,

Sutiawan

et al. 2024

Engineered bamboo: The promising material for building and construction application in Indonesia

Supriadi¹,

Trisatya²

2021

There is a rising gap between supply and demand of wood as building and construction materials. The search of alternative materials to fill in the gap is an urgent concern. Bamboo is one of locally abundant resources; 88 out of 135 species growth in Indonesia is an endemic. It is a renewably material and has comparable characteristics to wood. Notable efforts to reduce the variability of raw bamboo have led to the improved physical and mechanical properties of the engineered bamboo. Laminated bamboo and hybrid laminated bamboo-wood had superior wood strength in comparison to the raw materials. Laminated bamboo produced from andong (Gigantochloa pseudoarundinacea (Steud.) Widjaja), mayan (Gigantochloa robusta Kurz), vertically laminated andong bamboo comparable to wood strength class I, I-II and II, respectively. Furthermore, hybrid laminated bamboo-wood andong-manii (Maesopsis eminii Engl.), andong-mayan-jabon (Anthocephalus cadamba (Roxb.) Miq.) comparable to wood strength class II and III, respectively. The properties improvement of engineered bamboo demonstrates the potential application of laminated bamboo as a substitution for building and construction material.

Enhancing the properties of damar (Agathis loranthifolia Salisb.) wood by making hybrid bamboo-wood composite

Trisatya¹,

Iqbal²,

Sulastiningsih³

2021

This study was carried out to investigate the characteristics of laminated bamboo and damar (Agathis loranthifolia Salisb.) wood as the core layer of the bamboo-damar hybrid composite beam. Andong bamboo (Gigantochloa pseudoarundinacea (Steud.) Widjaja) and mayan bamboo (Gigantochloa robusta Kurz.) were used as the face and back layers of the beam, glued with isocyanate adhesive. Four types of composite beam were produced with various number of laminated bamboo layers. Results showed that the four layers (two layers for each face and back sides) laminated andong bamboo performed superior mechanical properties than others hybrid composite beam, while the four layers (two layers for each face and back sides) laminated mayan bamboo demonstrated the highest compression and bonding strength. The density, MOR, MOE and compression strength of the hybrid composite beam improved 31.3%, 25.95%, 37.81% and 25.12%, respectively, as the outcomes of the incorporation of laminated andong bamboo on the outer layers of the damar board. This paper proves that the number of laminated bamboo layers enhances the properties of the bamboo-damar hybrid composite beam. Furthermore, it shows promising result for complementing furniture and interior design materials as the bamboo-damar hybrid composite beam has remarkable properties.