Some Exploitation Poperties of Wood Plastic Composites (WPC) Based on High Density Polyethylene (HDPE) and Plywood Poduction Waste

Mechanical performance of thermoplastic composites using bituminous coal as filler: Study of a potentially sustainable end‐use application for Appalachian coal

“…Increased flexural modulus is expected for reinforced polymers; with an increase in particulate filler content, the capacity of the composite to elastically deform decreases. Kajaks et al saw a similar increase in flexural strength of 57.3% at 50 wt% pine wood flour and a decrease in flexural strength with filler content above 50 wt% . As expected, CPC tensile strength decreased with increasing coal content with a 24% decrease found at 60 wt%.…”

“…At 30 wt% coal loading, the addition of 1 and 3 wt% MAPE saw a decrease of 9 and 17% in flexural strength respectively, when compared to that of 30 wt% coal composite without MAPE. Results involving wood flour as filler material for HDPE show comparable increases in flexural strength with increase in filler content, however the addition of MAPE saw an improvement in the flexural strength of the composite . Kajaks et al observed a maximum increase of 7% in flexural strength using a MAPE content of 3 wt% with 50 wt% wood flour .…”

“…Results involving wood flour as filler material for HDPE show comparable increases in flexural strength with increase in filler content, however the addition of MAPE saw an improvement in the flexural strength of the composite . Kajaks et al observed a maximum increase of 7% in flexural strength using a MAPE content of 3 wt% with 50 wt% wood flour . Li et al observed an increase in the flexural strength of 88% using 3 wt% MAPE in a 70 wt% wood flour composite .…”

“…Alternative coupling agents which introduce polymer matrix crosslinking, such as silanes, may be better suited for such applications . Further, modification of coal surface functionality to increase bonding with maleic acid may allow for commercially available MAPE coupling agents to improve CPC mechanical properties as observed with WPCs .…”

Wood plastic composites (WPC) based on high-density polyethylene and birch wood plywood production residues

“…Many researchers (Klyosov 2007;Liukko et al 2007;Cui et al 2010;Kamel 2010;Yemele et al 2010;Gozdecki et al 2011;Zimmerman et al 2014;Matuana and Stark 2015) have paid attention to the studies of different properties of these composites that can be exploited. The most useful polymers for manufacture of WPCs are polyolefins (Nwabunma and Kun 2007), particularly, high-density polyethylene (HDPE) and polypropylene, but as the reinforcement of WPCs different waste materials can be used, including timber industry byproducts (Kajaks et al 2014(Kajaks et al , 2015(Kajaks et al , 2016(Kajaks et al , 2017Kuka et al 2016). The main problem for obtaining quality WPC materials is to achieve good interaction of the surface between the polymer matrix and the wood fibres.…”