scholarly journals A Comparative Study on the Mechanical, Thermal and Morphological Characterization of Poly(lactic acid)/Epoxidized Palm Oil Blend

2012 ◽  
Vol 13 (5) ◽  
pp. 5878-5898 ◽  
Author(s):  
V. S. Giita Silverajah ◽  
Nor Azowa Ibrahim ◽  
Wan Md Zin Wan Yunus ◽  
Hazimah Abu Hassan ◽  
Chieng Buong Woei
Keyword(s):  
Lactic Acid ◽  
Comparative Study ◽  
Palm Oil ◽  
Morphological Characterization ◽  
Poly Lactic Acid ◽  
Epoxidized Palm Oil ◽  
Oil Blend

The Mechanical, Thermal and Morphological Properties of Graphene Nanoplatelets Filled Poly(lactic acid)/Epoxidized Palm Oil Blends

2014 ◽  
Vol 11 (2) ◽  
pp. 57 ◽  
Author(s):  
Buong Woei Chieng ◽  
Nor Azowa Ibrahim ◽  
Wan Md Zin Wan Yunus ◽  
Mohd Zobir Hussein
Keyword(s):  
Lactic Acid ◽  
Palm Oil ◽  
Graphene Nanoplatelets ◽  
Morphological Properties ◽  
Poly Lactic Acid ◽  
Elongation At Break ◽  
Xrd Pattern ◽  
Oil Blends ◽  
Epoxidized Palm Oil ◽  
Blending Method

Poly(lactic acid) (PLA)-based nanocomposites filled with graphene nanoplatelets (xGnP) that contains epoxidized palm oil (EPO) as plasticizer were prepared by melt blending method. PLA was first plasticized by EPO to improve its flexibility and thereby overcome its problem of brittleness. Then, xGnP was incoporated into plasticized PLA to enhance its mechanical properties. Plasticized and nanofilled PLA nanocomposites (PLA/EPO/xGnP) showed improvement in the elongation at break by 3322% and 61% compared to pristine PLA and PLA/EPO, respectively. The use of EPO and xGnP increases the mobility of the polymeric chains, thereby improving the flexibility and plastic deformation of PLA. The nanocomposites also resulted in an increase of up to 26.5% in the tensile strength compared with PLA/EPO blend. XRD pattern showed the presence of peak around 26.5° in PLA/EPO/xGnP nanocomposites which corresponds to characteristic peak of graphene nanoplatelets. Plasticized PLA reinforced with xGnP showed that increasing the xGnP content triggers a substantial increase in thermal stability. Crystallinity of the nanocomposites as well as cold crystallization and melting temperature did not show any significant changes upon addition of xGnP. However, there was a significant decrease of glass transition temperature up to 0.3wt% of xGnP incorporation. The TEM micrograph of PLA/EPO/xGnP shows that the xGnP was uniformly dispersed in the PLA matrix and no obvious aggregation was observed.

scholarly journals Graphene Nanoplatelets as Novel Reinforcement Filler in Poly(lactic acid)/Epoxidized Palm Oil Green Nanocomposites: Mechanical Properties

2012 ◽  
Vol 13 (9) ◽  
pp. 10920-10934 ◽  
Author(s):  
Buong Woei Chieng ◽  
Nor Azowa Ibrahim ◽  
Wan Md Zin Wan Yunus ◽  
Mohd Zobir Hussein ◽  
V. S. Giita Silverajah
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Palm Oil ◽  
Graphene Nanoplatelets ◽  
Poly Lactic Acid ◽  
Epoxidized Palm Oil
Sign in / Sign up

Export Citation Format

Share Document