Polymeric particle composites based on filler from hen egg-shells
2017
Petrasek, S., Czech Univ. of Life Sciences, Prague (Czech Republic) | Muller, M., Czech Univ. of Life Sciences, Prague (Czech Republic)
The paper deals with utilization of a by-product from the food industry, namely waste coming into being at processing hen eggs, i.e. egg-shells. Polymeric particle composites, i.e. structural two-component epoxy resins CHS EPOXY 324 Lepox 1200 filled with microparticles from hen egg-shells of 10, 20, 30 and 40 wt. % concentrations, were used within the research. The aim of the research was to evaluate the possibilities of the use of the microparticles based on hen egg-shells as the filler in the structural two-component resin. Another aim was to determine the influence of the filler content in the structure of the composite material on the mechanical properties, i.e. the tensile strength, elongation at break and hardness. The tensile strength was increased of 22 % at 10 wt. % egg-shell microparticle filler. The elongation at break was decreased with increasing the filler weight up of 34.5 %. The influence of the filler on the hardness was not statistically proved, however, the filler proved good wettability with the matrix. A scanning electron microscopy MIRA 3 TESCAN (SEM) was used for the description of the created composite material. The research was based on an assumption of an optimization of the waste utilization from renewable resources with the aim to gain a material providing good mechanical properties. The egg-shell microparticle filler proved the effectivity in the area of filling two-component epoxy resin also at high concentrations, i.e. to 40 wt. %.
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