scholarly journals The influence of accelerated weathering on the mechanical and physical properties of wood-plastic composites

2015 ◽  
Vol 64 (1S) ◽  
pp. 94 ◽  
Author(s):  
H Kallakas ◽  
T Poltimäe ◽  
T-M Süld ◽  
J Kers ◽  
A Krumme
Keyword(s):  
Physical Properties ◽  
Accelerated Weathering ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Mechanical And Physical Properties

Effects of Antioxidants Content on the Physical and Mechanical Properties of Wood Plastic Composites

2011 ◽  
Vol 471-472 ◽  
pp. 151-156 ◽  
Author(s):  
Mohd Hafizuddin Ab Ghani ◽  
Ahmad Haji Sahrim
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
High Density Polyethylene ◽  
Natural Fibers ◽  
Physical And Mechanical Properties ◽  
Screw Extruder ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Mechanical And Physical Properties ◽  
Twin Screw

We investigated the effects of amount of antioxidants variability on selected mechanical and physical properties of wood plastic composites. Recycled high density polyethylene (rHDPE) and natural fibers were compounded into pellets by compounder, then the pellets were extruded using co-rotating twin-screw extruder and test specimens were prepared by hot and cold press process. From the study, samples with 0.5 wt% of antioxidants produce the highest strength and elasticity of composites. The effect of antioxidants presence on water uptake is minimal.

scholarly journals Effects of geometric particle sizes of wood flour on strength and dimensional properties of wood plastic composites

2013 ◽  
Vol 5 (1) ◽  
pp. 194-199
Author(s):  
D. N. Izekor ◽  
S. O. Amiandamhen ◽  
O. S. Agbarhoaga
Keyword(s):  
Physical Properties ◽  
Wood Flour ◽  
Particle Sizes ◽  
Thickness Swelling ◽  
Wood Plastic Composites ◽  
Dimensional Properties ◽  
Mean Values ◽  
Plastic Composites ◽  
Mechanical And Physical Properties ◽  
Plastic Ratio

The effect of different wood flour sizes on strength and dimensional properties of wood-plastic composites were examined. Wood flour of different particle sizes viz; 1.00mm, 2.00mm and >2.00mm were compounded with recycled low-density polyethylene (LDPE) at different wood/plastic ratio of 1: 1, 2: 3 and 3: 2. The results obtained showed that wood flour size > 2.00mm has the highest MOR and MOE values of 1.206N mm-2 and 2484.72Nmm-2 while wood flour size of 1.00mm had the lowest MOR and MOE values of 0.505Nmm-2 and 2195.89Nmm-2 respectively. Also the results of the physical properties showed that wood flour size of 1.00mm had the lowest thickness swelling percentage with mean values of 0.28% and 2.08% while water absorption percentage has mean values of 0.91% and 10.58% after 2 hours and 24 hours of water immersion respectively. It was observed that wood flour size of 2.00mm and particle size >2.00mm had the highest thickness swelling and water absorption percentages. This showed that strength properties of wood plastic composites increased with increased particle sizes whereas its dimensional properties increased with decreased particle sizes. The results of analysis of variance carried out on mechanical and physical properties showed that particle sizes and wood/plastic ratio had a significant effect on the mechanical and physical properties of wood plastic composites (p 0.05).

scholarly journals A Comprehensive Review on Process and Technological Aspects of Wood-Plastic Composites

2021 ◽  
Vol 9 (2) ◽  
pp. 329
Author(s):  
Sumit Manohar Yadav ◽  
Muhammad Adly Rahandi Lubis ◽  
Kapil Sihag
Keyword(s):  
Recent Progress ◽  
Raw Materials ◽  
Morphological Properties ◽  
Manufacturing Processes ◽  
Wood Fibers ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Mechanical And Physical Properties ◽  
Recent Developments ◽  
Manufacturing Methods

This review deals with recent works on the process and technological aspects of wood-plastic composites (WPCs) manufacturing.The term WPCs relates to any composites that contain plant (including wood and non-wood) fibers and thermosets or thermoplastics. Recent progress relevant to wood-plastic composites has been cited in this review. This articleintended to outline the results presented on wood-plastic composites focusing on process and technological aspects such as raw materials, fabrication, mechanical, physical, thermal, and morphological properties. The manufacturing process of WPCs is an important aspect of WPCs production. Manufacturing methods like compression molding and pultrusion have some limitations. Extrusion and injection molding are the most widely used manufacturing processes in WPCs due to their effectiveness. Recent developments dealing with WPCs and the use of different kinds of nanofillers in WPCs have also been presented and discussed. Nanoclays are widely used as nanofillers in WPCs because they represent an eco-friendly, readily available in large quantity, and inexpensive filler. WPCs are finding applications in many fields ranging from the construction to the automotive industry.Keywords: additive manufacturing, adhesion, fabrication techniques, mechanical and physical properties, wood-plastic composites

scholarly journals Accelerated weathering of polyvinyl chloride-based wood-plastic composites: Effect of plant species

BioResources ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. 5261-5271
Author(s):  
Ruige Qi ◽  
Chunxia He ◽  
Qiang Jin
Keyword(s):  
Polyvinyl Chloride ◽  
Plant Species ◽  
Color Change ◽  
Accelerated Weathering ◽  
Plant Fibers ◽  
Wood Plastic Composites ◽  
Bonding Performance ◽  
Plastic Composites ◽  
The Impact ◽  
Selection Of

The effect of plant species on the accelerated weathering behaviors of polyvinyl chloride-based wood-plastic composites (WPCs) was studied. The selected plant species were eucalyptus, rice husk, and bamboo. The color and chemical compositional changes that occurred due to accelerated weathering were monitored using colorimetry and Fourier transform infrared spectroscopy. The lignin and carbonyl contents of the WPCs were altered with exposure. The color change and lightness of the weathered WPCs increased with exposure time, and the degree of increase depended on the plant species. The water absorption and swelling ratio of the WPCs increased with an increase in exposure. The eucalyptus-based composite was the highest ranked in terms of mechanical properties, and the microstructure of the impact section showed that the interfacial bonding performance deteriorated after exposure. In conclusion, the selection of plant fibers is critical to the service performance of WPCs.

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