Development of crayfish protein-PCL biocomposite material processed by injection moulding
2015; Elsevier BV; Volume: 78; Linguagem: Inglês
10.1016/j.compositesb.2015.03.057
ISSN1879-1069
AutoresManuel Félix, Alberto Romero, J.E. Martín‐Alfonso, Antonio Guerrero,
Tópico(s)Nanocomposite Films for Food Packaging
ResumoAbstract A combination of crayfish flour (CF, with 60% protein) and Polycaprolactone (PCL) was successfully used to prepare biocomposites by a process that consists of two stages: mixing with glycerol (GL) as plasticizer and injection moulding of CF/GL/PCL blends. Mixing rheometry and Differential Scanning Calorimetry (DSC) measurements were found to be useful to select suitable injection moulding conditions. A remarkable enhancement in mechanical properties was found for PCL containing systems, even when crystalline structure remains unaltered. PCL yields a dominant contribution to the elastic response and confer a higher ability to absorb energy before rupture, but also the protein/plasticiser ratio must be considered.
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