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Sökning: WFRF:(Van Langenhove T)

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  • Ciera, L., et al. (författare)
  • Morphological and material properties of polyethyleneterephthalate (PET) fibres with spores incorporated
  • 2014
  • Ingår i: Fibres & Textiles in Eastern Europe. - : Instytut Wlokien Chemicznych,Institute of Chemical Fibres. - 1230-3666. ; 22:4, s. 29-36
  • Tidskriftsartikel (refereegranskat)abstract
    • Owing to the current demand for textiles with new functionalities and improved properties, there has been a continuous effort to modify Polyethylene terephthalate (PET) materials. In our previous study, we demonstrated that Bacillus amyloliquefaciens spores can be incorporated into PET fibres during extrusion. However, the extent to which they can be incorporated without fundamentally changing the properties of the fibres is unknown. In this work, scanning electron microscopy (SEM), transmission electron microscopy (TEM), optical microscopy (OM), differential scanning calorimetry (DSC), a Favimat tensile tester, and Raman and Fourier transform infrared spectroscopy (FT-IR) were used to study the properties of PET/spore fibres. The tensile strength, Young’s modulus and elongation at break were dependent on the spore concentration. Additionally the degree of crystallinity increased slightly, whereas the melting and crystallisation temperatures remained constant at all spore concentration levels. Nevertheless the properties of the fibres fall within the acceptable range of variation and are found to be as good as normal PET fibres.
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  • Ciera, L, et al. (författare)
  • Resistance of Bacillus Amyloliquefaciens spores to melt extrusion process conditions
  • 2014
  • Ingår i: Fibres & Textiles in Eastern Europe. - : Instytut Wlokien Chemicznych,Institute of Chemical Fibres. - 1230-3666. ; 22:2, s. 102-107
  • Tidskriftsartikel (refereegranskat)abstract
    • With the increasing demand for functionalised textile materials, industry is focusing on research that will add novel properties to textiles. Bioactive compounds and their benefits have been and are still considered as a possible source of unique functionalities to be explored. However, incorporating bioactive compounds into textiles and their resistance to textile process parameters has not yet been studied. In this study, we developed a system to study the resistance of Bacillus amyloliquefaciens spores against melt extrusion process parameters, like temperature (21, 200, 250, 300 °C), pressure (0.1, 0.6 and 1.0 MPa) and residence time (0, 1 and 10 minutes). The spores were successfully embedded in PET (polyethylene terephthalate) films and fibres through melt extrusion. Afterwards the survival rate of the spores was determined after extrusion and the data was used to develop a quadratic equation that relates the survival rate to the spore concentration.
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  • Resultat 1-7 av 7

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