Research Summary: Use of Wood-Based Particles in Thermoplastic Composites

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The successful use of wood-based particles and fibers as fillers or reinforcements in thermoplastic composites requires an essential considerate of the structural and chemical personalities of wood [1]. English and Falk give an inclusive overview of the factors that influence the properties of wood–plastic composites [2]. While several studies have revealed that fiber-polymer compatibility can be improved by selecting appropriate coupling agents [3,4], compatibility between polar wood fiber and non-polar thermoplastics remains key to extend the function limits of the resulting composites [5]. Another repeatedly cited key factor in natural fiber thermoplastic composites is thermal degradation [6]. In addition, different wood species have …show more content…
They concluded that melt flow index, heat deflection temperature, notched impact energy, and flexural and tensile modulus and strength increase with increasing particle size. Later, Stark and Rowlands [10] reported that aspect ratio, rather than particle size, has the greatest effect on strength and stiffness. They suggested that particle size does not affect specific gravity. Fiber content is a powerful factor in WPC processing and properties. Zhang et al. investigated the effects of fiber content on mixing torque and rheological properties. They concluded that increased wood fiber content results in increased stable state torque and viscosity [13]. Lu and coworkers concluded that the mechanical properties of the ensuing WPC increase only at low weight percentages of wood filler [14]. They found that tensile and flexural strengths achieve a maximum at 15 wt% and 35 wt% wood particle contents, correspondingly, and slowly decrease with a more increase in wood particle content.
Previous research carried out by implanting nano-silicates in HDPE gave a sign to researchers of their potential use in WPCs. Research had exposed that nano-silicates (nano clays) proposed improved performance even at very low loadings and in this, were shown to be higher to other filler composites [15]. Moreover, the research performed also showed that optimal diffusion of nano-clays in the polymer matrix could be achieved as a means of improving

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