Novel biodegradable composites based on treated lignocellulosic waste flour as filler. Part II. Development of biodegradable composites using treated and compatibilized waste flour

Vinyl Acetate Modified Scots Pine Reinforced HDPE Composites: Influence of Various Levels of Modification on Mechanical and Thermal Properties

“…This result might be due to the dissimilarities and lack of adhesion between the nonpolar HDPE matrix and polar wood flour filler. Similar results were also reported by others (Bledzki et al 1998;Tserki et al 2006). Another possible reason for this reduction might be the low thermal stability of lignocellulosic fibers.…”

“…Some authors claim that acetylation improves the mechanical and thermal properties of WPCs (Tserki et al 2006;Lisperguer et al 2007;Abdul Khalil et al 2007;Özmen et al 2013). In contradiction to these studies, it was also reported that acetylation reduces the mechanical properties of WPCs (Luz et al 2008;Mat Taib et al 2010).…”

“…It is clear from the figure that addition of 30 wt% wood flour in the HDPE matrix reduced the elongation at break from 500% for neat HDPE to 5% for W composites. There was a reduction for elongation at break values with addition of wood flour into the polymer matrix (Tserki et al 2006;Mathew et al 2011). The elongation at break for composites with VA or AA modified wood flour (around 6%) was hardly higher than composites with untreated wood flour at similar loading.…”

“…The tensile strength properties of AA modified wood flour reinforced HDPE composite (AA 24 ) were also significantly improved as compared to the unmodified one. It has been reported that the interface between fiber and matrix influences the mechanical properties of reinforced composites considerably (Bledzki et al 1998;Tserki et al 2006). Mat Taib and coworkers (2010) reported that Acacia mangium fibers were modified with acetic anhydride to three different weight percent gain levels (4.9%, 13.7%, and 18.3% WPGs) and found that the acetylation of fibers significantly reduced the tensile strength of the HDPE composites.…”

“…There are studies that focus on acetic anhydride-modified fiber reinforced polymer composites (Tserki et al 2006;Lisperguer et al 2007;Abdul Khalil et al 2007;Luz et al 2008;Mat Taib et al 2010). Some authors claim that acetylation improves the mechanical and thermal properties of WPCs (Tserki et al 2006;Lisperguer et al 2007;Abdul Khalil et al 2007;Özmen et al 2013).…”