Abstract
Composites composed of high-density polyethylene, woven flax fiber textiles (flax weave style of 2 × 2 twill and 4 × 4 hopsack) and SiO2 were produced by hot press with nanospraying technique. The SiO2 slurries were sprayed on the woven flax fiber followed by drying. The related HDPE/woven flax fibers composites were prepared by hot press. The dispersion of SiO2 particles and flax in the composites was studied by scanning electron microscopy. The related high-density polyethylene based composites were subjected to instrumented falling weight impact test. The thermal resistance, stiffness and tensile strength properties of the composites were determined in thermogravimetric analysis, dynamic-mechanical thermal analysis and tensile tests, respectively. It was found that the impact energy and stiffness value of high-density polyethylene/flax composites was markedly higher than that of high-density polyethylene but reflect the effects of composite structures and flax content. Incorporation of SiO2 particles enhanced resistance to thermal degradation. It was established that the linear viscoelastic material principle are fairly applicable to convert from the modulus to the creep compliance results.
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