A Study on the Susceptibility of PLA Biocomposites to Drilling

Wood–plastic composites (WPCs) increase the range of applications materials by creating new material solutions. As part this research, PLA (polylactic acid)- and HDPE (high-density polyethylene)-based were manufactured. Softwood sawdust or conifer bark with different sizes (large small) used as filler. In selected cases, addition 3% additives, such calcium oxide in case polyethylene-graft-maleic anhydride HDPE, tested. The manufactured examined for their density profile susceptibility to drilling, defined value axial force occurring during drilling. obtained results revealed that type matrix had greatest influence on forces Regardless composite formulation, based 25% 56% higher drilling than those HDPE. Furthermore, increasing proportion lignocellulosic fillers resulted a decrease experiencing greater composites. size filler minor impact values statistical analysis indicated additives PLA.