TY - JOUR
T1 - Optimum loading level of nanoclay in PLA nanocomposites
T2 - Impact on the mechanical properties and glass transition temperature
AU - Pirani, Sanaa I.
AU - Krishnamachari, Parakalan
AU - Hashaikeh, Raed
N1 - Publisher Copyright:
© The Author(s) 2013.
PY - 2014/11/11
Y1 - 2014/11/11
N2 - Biodegradable polymer nanocomposites of poly(lactic acid) and nanoclay (Cloisite 30B) samples were prepared with compositions of 0%, 1%, 2%, 3%, 4%, and 5% (by mass) nanoclay using extrusion followed by injection molding. An exfoliated morphology was observed using x-ray diffraction. The nanocomposites were investigated for their mechanical properties using dynamic mechanical analysis (DMA) and tensile testing. The combination with 3% nanoclay was found to be optimum as a result of having the greatest mechanical strength. The fracture surfaces of the samples were also observed with the help of a scanning electron microscopy, and the images obtained complied with the experimental values attained for the samples, indicating more ductile fractures for those samples with greater mechanical strength. The thermal properties of the composites were studied with the help of differential scanning calorimetry and DMA data, and it was found that the trend followed by the glass transition temperature values obtained by both the methods was the same.
AB - Biodegradable polymer nanocomposites of poly(lactic acid) and nanoclay (Cloisite 30B) samples were prepared with compositions of 0%, 1%, 2%, 3%, 4%, and 5% (by mass) nanoclay using extrusion followed by injection molding. An exfoliated morphology was observed using x-ray diffraction. The nanocomposites were investigated for their mechanical properties using dynamic mechanical analysis (DMA) and tensile testing. The combination with 3% nanoclay was found to be optimum as a result of having the greatest mechanical strength. The fracture surfaces of the samples were also observed with the help of a scanning electron microscopy, and the images obtained complied with the experimental values attained for the samples, indicating more ductile fractures for those samples with greater mechanical strength. The thermal properties of the composites were studied with the help of differential scanning calorimetry and DMA data, and it was found that the trend followed by the glass transition temperature values obtained by both the methods was the same.
KW - Nanocomposite
KW - biodegradable
KW - dynamic mechanical analysis
KW - nanoclay
KW - poly(lactic acid)
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U2 - 10.1177/0892705712473627
DO - 10.1177/0892705712473627
M3 - Article
AN - SCOPUS:84908893739
SN - 0892-7057
VL - 27
SP - 1461
EP - 1478
JO - Journal of Thermoplastic Composite Materials
JF - Journal of Thermoplastic Composite Materials
IS - 11
ER -