scholarly journals Assessment of Sorptive Properties of Selected Tropical Wood Species

2018 ◽  
Vol 69 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Agnieszka Jankowska
Keyword(s):  
Wood Species ◽  
Tropical Wood

Influence of Moisture Content in some Mechanical Properties of Two Brazilian Tropical Wood Species

2014 ◽  
Vol 1025-1026 ◽  
pp. 42-45 ◽  
Author(s):  
Luiz A. Melgaço N. Branco ◽  
Eduardo Chahud ◽  
André Luis Christoforo ◽  
Francisco Antonio Rocco Lahr ◽  
Rosane A.G. Battistelle ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Shear Strength ◽  
Moisture Content ◽  
Analysis Of Variance ◽  
Wood Species ◽  
Modulus Of Elasticity ◽  
Modulus Of Rupture ◽  
Tropical Wood ◽  
Fiber Saturation ◽  
Brazilian Standard

This study aimed, with the aid of analysis of variance (ANOVA), to investigate and quantify the influence of moisture ranging between 12% and over 30% (fiber saturation) on the mechanical properties: strength and modulus of elasticity in compression and in tension parallel to grain; modulus of rupture and modulus of elasticity in static bending; shear strength parallel to grain considering wood species Ipê (Tabebuia sp) and Angelim Araroba (Vataireopsis araroba). Tests were performed according to the assumptions and calculating methods Brazilian standard ABNT NBR 7190, Anexx B, totalizing 400 tests. Results of ANOVA revealed a significant reduction (16% on average) for mechanical properties wood due to the increase in moisture content from 12% to over 30% (fiber saturation). The same behavior also occurred when assembly containing the two species was considered.

scholarly journals Effect of Extractives on the Equilibrium Moisture Content and Shrinkage of Selected Tropical Wood Species

BioResources ◽  
2016 ◽  
Vol 12 (1) ◽  
Author(s):  
Agnieszka Jankowska ◽  
Michał Drożdżek ◽  
Paweł Sarnowski ◽  
Jakub Horodeński
Keyword(s):  
Moisture Content ◽  
Equilibrium Moisture Content ◽  
Wood Species ◽  
Tropical Wood

Physical properties of two tropical wood species from Mozambique

2010 ◽  
Vol 5 (3-4) ◽  
pp. 151-161 ◽  
Author(s):  
Alexandre Charifo Ali ◽  
Jelena Chirkova ◽  
Nasko Terziev ◽  
Torbjörn Elowson
Keyword(s):  
Physical Properties ◽  
Wood Species ◽  
Tropical Wood

scholarly journals Mechanical and Morphological Properties of Tropical Wood Polymer Nanocomposite (WPNC)

2013 ◽  
Vol 667 ◽  
pp. 200-205 ◽  
Author(s):  
Md. Saiful Islam ◽  
Sinin Hamdan ◽  
Mohamad Rusop ◽  
Md. Rezaur Rahman
Keyword(s):  
Polymer Nanocomposites ◽  
Wood Species ◽  
Phenol Formaldehyde ◽  
Polymer Nanocomposite ◽  
Xrd Analysis ◽  
Morphological Properties ◽  
Xrd Pattern ◽  
Tropical Wood ◽  
Sem Image ◽  
Wood Polymer

A novel route to wood modification by impregnation of nanoclay combined with phenol formaldehyde (PF) resin is developed in this study. Wood polymer nanocomposites (WPNCs) were prepared from several tropical wood species by impregnating the woods with PF/nanoclay formulations. The vacuum-pressure method was used to impregnate the samples with PF/nanoclay prepolymer mixture. The formation of wood polymer nanocomposites and the location of impregnated materials inside wood were confirmed through SEM image and XRD pattern respectively. The PF/nanoclay loading achievable was found to be dependent on the properties of wood species. Low loading was observed for the high density wood species. Mechanical strength of fabricated WPNCs in terms of modulus of elasticity (MOE) was found to be significantly improved. Furthermore, morphological properties of raw wood and WPNC samples were evaluated by scanning electron microscopy (SEM) and XRD analysis and a change in morphological properties was also observed for WPNC.

Tool wear for lesser known tropical wood species

2011 ◽  
Vol 6 (3) ◽  
pp. 155-161 ◽  
Author(s):  
Luís Cristóvão ◽  
Inácio Lhate ◽  
Anders Grönlund ◽  
Mats Ekevad ◽  
Rui Sitoe
Keyword(s):  
Tool Wear ◽  
Wood Species ◽  
Tropical Wood
Sign in / Sign up

Export Citation Format

Share Document