Vol.08. Nos.3 - 4 (2009) pp.131-141
Title:

Development of bamboo laminates from Bambusa balcooa and Bambusa vulgaris, two native species of Bangladesh.

Authors:Daisy Biswas; Bose, S.K; Hossain, M.M

Abstract:A continuous decline in wood resources has triggered research interest in alternative raw material search for wood based industries in Bangladesh. Bamboo, a fast growing, renewable, economical and easily workable material, could be a very promising alternative to wood raw material. Two local bamboo species, Bambusa balcooa and Bambusa vulgaris, have been studied for their suitability for the manufacture of bamboo laminates. A culm portion up to 5.4 m and 3.6 m (from the base) were used to get rectangular strips for laminate production of B. balcooa and B. vulgaris respectively. Various preservative treatments like borax-boric acid, bleaching and carbonization were given to the strips for extending the service life of the laminates. Three-layered bamboo laminates of 12 mm thickness were made at two different grain orientations (parallel and cross) using the treated strips. Urea formaldehyde (UF) and polyvinyl acetate (PVA) were used as binder. The parallel laminates glued with both UF and PVA had higher mechanical properties like modulus of rupture and modulus of elasticity compared to cross laminates. However, parallel laminates glued with PVA were less dimensionally stable. Between the species, parallel laminates made from B. vulgaris performed better. Laminated bamboo falls under moderately high strength category. It could be used as structural panel, flat pack furniture component, floor tiles, wall panel, etc. However, further research on durability and creep behavior of the product in service condition is warranted.

Keywords:adhesives; bamboos; bleaching; borax; boric acid; mechanical propertie

Permalink: https://www.jbronline.org/article.asp?id=216