Abstract
Particle boards were prepared from saw dust wastes obtained from Gmelina aborea using polyethylene as binder. The boards were produced under three different compositional variables, namely: particles sizes (1 µm, 1.5 µm and 2 µm), densities (450kg/m3, 550 kg/m3 and 650 kg/m3) and mixing ratios ofsaw dust to polyethylene (30:70, 40:60 and 50:50). Part of the saw dust samples were chemically modified by pulping with caustic soda at 110oC and the effect of modification was examined on the physical and mechanical properties of the particle boards. The results showed that the chemically modified particle boards showed improved resistance to swelling and water absorption while a decrease was observed in the values of the modulus of rupture and elasticity.
Highlights
The utilization of wood and natural fibers as a substitute to synthetic fillers such as carbon, glass or aramids for the production of particle boards is an ethically sound way of reducing the use of non – biodegradable and non – renewable resources
The result indicated that the Gmelina arborea contained 61.22 % cellulose and 20.0 % lignin
The value of the aqueous extractives, i.e. cold and hot water solubility, which represents the amount of tannins, gums, sugar, colouring matter and starches, is moderate and suitable
Summary
The utilization of wood and natural fibers as a substitute to synthetic fillers such as carbon, glass or aramids for the production of particle boards is an ethically sound way of reducing the use of non – biodegradable and non – renewable resources. Research finding revealed that about 45 – 50 % of the original wood harvested in Nigeria ended up as wastes [6, 7]. Some of these wastes are used as deep litters for poultry droppings while the majority are burnt or dump in waste sites constituting environmental hazards [8]. Majority of these wood wastes can effectively be used in the production of particle boards and other allied products [9]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
