Abstract
Polymer composite materials with vegetable fibers were an attractive field for many industries and researchers, however, these materials required the issues of compatibility between the fibers and the polymeric matrix. This work evaluates the thermal and mechanical properties of Doum-fibers reinforcing a low density polyethylene (LDPE) composite to follow the effect of adding fibers into polymer matrix. Doum-fibers were Alkali treated to clean the fiber surface and improve the polymer/fibers adhesion. The Doum-fibers were compounded in LDPE matrix at various contents and extruded as continuous strands. An enhance on mechanical properties of composites was found, a gain of 145% compared to neat polymer at 30wt.% fiber loading in Young’s modulus, a gain of 135% in flexural modulus at 20wt.% fiber loading and a gain of 97% in torsional modulus at 0.1Hz. Thermal properties were evaluated and the results show a slight decrease with increase of added Doum.
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