|
Abstract
|
Article Information:
Recycling and Fibre Reinforcement of Thermoplastic Wastes to Produce Composites for Construction Works
P.M. Wambua, A.N. Mayaka and E.O.V. Odhong
Corresponding Author: Odhong Edward O.V.
Submitted: 2011 September, 13
Accepted: 2011 November, 04
Published: 2012 April, 01 |
Abstract:
|
Thermoplastics are among polymers that biodegrades very slowly over a very long period and can
be regarded as nonbiodegradable despite their rapid accumulation in the environment. The use of plant natural
fibres as reinforcement for thermoplastics to produce composites is an important area for research. In this study,
composites of high density polyethylene wastes reinforced with wood flour, rice husks and bagasse fibers were
prepared. The fibers were heated to reduce their moisture content and improve their compatibilities with heated
high density polyethylene wastes so as to increase adhesion at the interface. Binders were used to improve
interfacial strength of the composite. Composites were prepared by extrusion. From preliminary laboratory test
results based on Fratios using ANOVA, optimal coupon was found to be wood flour mixed with high density
polyethylene and polyurethane resin (X 17) heated to 210ºC and extruded at 140ºC. The final test results for
mechanical properties for optimal wood flour, rice husks and bagasse composites respectively were: Tensile
strength; 83.87, 74, and 62.73 MPa. Flexural strength; 26.73, 39and 15.22 MPa. Compressive; 225, 190.5 and
140 MPa and Impact; 78, 81 and 66 J/mm2. The use of binders significantly improved impact strengths and
widely expanded the usage of such product to include light load structural applications thus offering alternative
source of construction materials to supplement timber and hence save forests. The technology can create
employment to thermoplastic waste collectors, fibre collectors and composite producers.
Key words: Binders, composite, construction materials, fibers, recycling, thermoplastic wastes,
|
|
Abstract
|
PDF
|
HTML |
|
Cite this Reference:
P.M. Wambua, A.N. Mayaka and E.O.V. Odhong, . Recycling and Fibre Reinforcement of Thermoplastic Wastes to Produce Composites for Construction Works. Research Journal of Applied Sciences, Engineering and Technology, (07): 703-708.
|
|
|
|
 |
ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
 |
| Information |
|
|
|
|
| Sales & Services |
|
|
|
|
