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1. Densified wood anatomical structure and the effect of heat treatment on the recovery of set

Author:
Darwis, Atmawi; Wahyudi, Imam; Dwianto, Wahyu; Cahyono, Tekat Dwi
Source:
Journal 2017 v.14 no.1 pp. 24-31
ISSN:
0972-172X
Subject:
Agathis dammara; Gmelina arborea; cell walls; heat treatment; parenchyma (plant tissue); temperature; tracheids; wood; wood anatomy; wood quality
Abstract:
... Densification of wood is a method to improve wood quality. However, its product namely densified wood, tends to return to the initial shape and size (spring back) if the fixation had not completed. This method will also result in the changes on wood anatomy structure. The aim of this research was to assess effect of various densification degrees at radial direction on recovery of set (RS) and anat ...
DOI:
10.1007/s13196-017-0184-z

2. Determination of growth stresses indicator, moisture profiles and basic density of clonal eucalyptus wood

Author:
Amer, Mahyoub; Kabouchi, Bousselham; Rahouti, Mohamed; Famiri, Abderrahim; Fidah, Abdelwahed
Source:
Journal 2017 v.14 no.1 pp. 91-98
ISSN:
0972-172X
Subject:
Eucalyptus; clones; plantations; reaction wood; sawing; trees; water content; wood
Abstract:
... Liberation of growth stresses during cutting and sawing prevents the use of eucalyptus as working timber. The occurrence of log-end cracks and planks, due to the release of growth stress pre-existing in the standing tree, causes severe damage at the early stage of wood transformation. In this study, we determine the GSI of two clonal eucalyptus wood originated from Gharb Mâamora plantations, so as ...
DOI:
10.1007/s13196-017-0192-z

3. Non-destructive estimation of modulus of elasticity of wood polymer composite

Author:
Kale, Amey; Chauhan, Shakti
Source:
Journal 2017 v.14 no.1 pp. 18-23
ISSN:
0972-172X
Subject:
fiber content; modulus of elasticity; ultrasonics; vibration; wood
Abstract:
... Dynamic modulus of elasticity (DMoE) of wood polymer composites, prepared with varying proportion of wood content, was determined using flexural vibration and ultrasonic pulse transit time methods. The DMoE was compared with the flexural modulus as measured by standard three point bending test. The elastic modulus of the composite increased with the increasing fiber content. Both vibration methods ...
DOI:
10.1007/s13196-016-0183-5

4. Physical and mechanical properties of reinforced ply wood with natural fibers

Author:
Moezzipour, Bita; Ahmadi, Mohammad; Moezzipour, Aida
Source:
Journal 2017 v.14 no.1 pp. 70-73
ISSN:
0972-172X
Subject:
Carpinus betulus; Phoenix dactylifera; kenaf; mechanical properties; plywood; water uptake; wood
Abstract:
... In this study the reinforcing effect of date palm and kenaf fibers on practical properties of plywood manufactured from horn beam wood (Carpinus betulus) was investigated. Two types of fibers consist of kenaf and date palm were hand-laid up between wood layers. Also, the effect of resin content (150 and 200 g/m²) was determined. The results showed that utilization of kenaf and date palm fibers was ...
DOI:
10.1007/s13196-017-0189-7

5. Properties of laminated bamboo produced with the involvement of supercritical carbon dioxide treatment

Author:
Uslinawaty, Zakiah; Muin, Musrizal; Putranto, Beta; Suhasman, Suhasman
Source:
Journal 2017 v.14 no.1 pp. 74-78
ISSN:
0972-172X
Subject:
Dendrocalamus asper; adverse effects; bamboo products; bamboos; carbon dioxide; construction materials; durability; manufacturing; solvents; supercritical fluid extraction; temperature; vascular bundles; wood
Abstract:
... Supercritical carbon dioxide (SC-CO₂) as a carrier solvent is becoming an alternative and environmentally sound method in the preservative treatment of wood and wood-based products. The potential of this new method has never been explored for its suitability in manufacturing laminated bamboo products which are widely used as construction materials for either indoor or outdoor purposes. The current ...
DOI:
10.1007/s13196-017-0190-1

6. The physical, mechanical and durability properties of sorghum bagasse particleboard by layering surface treatment

Author:
Iswanto, Apri Heri; Aritonang, Wulandhari; Azhar, Irawati; Supriyanto,; Fatriasari, Widya
Source:
Journal 2017 v.14 no.1 pp. 1-8
ISSN:
0972-172X
Subject:
Eucalyptus; bagasse; bamboos; bark; bending strength; biomass; cellulose; durability; mixing; modulus of elasticity; modulus of rupture; ovens; particleboards; raw materials; urea formaldehyde; water content; wood
Abstract:
... The decrease of wood supply leads to find out the alternative raw material for particleboard production derived from non-woody cellulose materials, one of the promising material is sorghum bagasse. However, the strength properties of particleboard manufactured from this biomass tend to be low. This research was to evaluate physical, mechanical and durability properties of sorghum bagasse-particleb ...
DOI:
10.1007/s13196-016-0181-7