Limits...
Graphene nanoplatelets as novel reinforcement filler in poly(lactic acid)/epoxidized palm oil green nanocomposites: mechanical properties.

Chieng BW, Ibrahim NA, Yunus WM, Hussein MZ, Giita Silverajah VS - Int J Mol Sci (2012)

Bottom Line: PLA/EPO reinforced with xGnP resulted in an increase of up to 26.5% and 60.6% in the tensile strength and elongation at break of the nanocomposites respectively, compared to PLA/EPO blend.However, incorporation of xGnP has no effect on the flexural strength and modulus.Mechanical properties of PLA were greatly improved by the addition of a small amount of graphene nanoplatelets (<1 wt%).

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; E-Mails: mzobir@science.upm.edu.my (M.Z.H.); vsgiita@gmail.com (V.S.G.S.).

ABSTRACT
Graphene nanoplatelet (xGnP) was investigated as a novel reinforcement filler in mechanical properties for poly(lactic acid) (PLA)/epoxidized palm oil (EPO) blend. PLA/EPO/xGnP green nanocomposites were successfully prepared by melt blending method. PLA/EPO reinforced with xGnP resulted in an increase of up to 26.5% and 60.6% in the tensile strength and elongation at break of the nanocomposites respectively, compared to PLA/EPO blend. XRD pattern showed the presence of peak around 26.5° in PLA/EPO nanocomposites which corresponds to characteristic peak of graphene nanoplatelets. However, incorporation of xGnP has no effect on the flexural strength and modulus. Impact strength of PLA/5 wt% EPO improved by 73.6% with the presence of 0.5 wt% xGnP loading. Mechanical properties of PLA were greatly improved by the addition of a small amount of graphene nanoplatelets (<1 wt%).

No MeSH data available.


Chemical structures of (a) poly(lactic acid) (PLA) and (b) epoxidized palm oil (EPO).
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
getmorefigures.php?uid=PMC3472721&req=5

f1-ijms-13-10920: Chemical structures of (a) poly(lactic acid) (PLA) and (b) epoxidized palm oil (EPO).

Mentions: Biodegradable polymer products based on renewable agricultural feedstock can form the basis for a portfolio of eco-efficient products, which can compete with currently dominating products based on petroleum feedstock. Poly(lactic acid) (PLA), cellulosic plastics, polyhydroxy alkonate, thermoplastic starch, vegetable oils, and palm oils are examples of renewable resources based biopolymers. PLA can be obtained from renewable resources by a fermentation process using sugar from corn, either by ring-opening polymerization or condensation polymerization [2]. PLA is linear aliphatic thermoplastic polyester (Figure 1a) that is readily biodegradable via enzyme action [3]. However, PLA causes drawbacks for some applications, owing to its brittleness, mechanical, thermal, barrier, and flame retardant properties [4].


Graphene nanoplatelets as novel reinforcement filler in poly(lactic acid)/epoxidized palm oil green nanocomposites: mechanical properties.

Chieng BW, Ibrahim NA, Yunus WM, Hussein MZ, Giita Silverajah VS - Int J Mol Sci (2012)

Chemical structures of (a) poly(lactic acid) (PLA) and (b) epoxidized palm oil (EPO).
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC3472721&req=5

f1-ijms-13-10920: Chemical structures of (a) poly(lactic acid) (PLA) and (b) epoxidized palm oil (EPO).
Mentions: Biodegradable polymer products based on renewable agricultural feedstock can form the basis for a portfolio of eco-efficient products, which can compete with currently dominating products based on petroleum feedstock. Poly(lactic acid) (PLA), cellulosic plastics, polyhydroxy alkonate, thermoplastic starch, vegetable oils, and palm oils are examples of renewable resources based biopolymers. PLA can be obtained from renewable resources by a fermentation process using sugar from corn, either by ring-opening polymerization or condensation polymerization [2]. PLA is linear aliphatic thermoplastic polyester (Figure 1a) that is readily biodegradable via enzyme action [3]. However, PLA causes drawbacks for some applications, owing to its brittleness, mechanical, thermal, barrier, and flame retardant properties [4].

Bottom Line: PLA/EPO reinforced with xGnP resulted in an increase of up to 26.5% and 60.6% in the tensile strength and elongation at break of the nanocomposites respectively, compared to PLA/EPO blend.However, incorporation of xGnP has no effect on the flexural strength and modulus.Mechanical properties of PLA were greatly improved by the addition of a small amount of graphene nanoplatelets (<1 wt%).

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; E-Mails: mzobir@science.upm.edu.my (M.Z.H.); vsgiita@gmail.com (V.S.G.S.).

ABSTRACT
Graphene nanoplatelet (xGnP) was investigated as a novel reinforcement filler in mechanical properties for poly(lactic acid) (PLA)/epoxidized palm oil (EPO) blend. PLA/EPO/xGnP green nanocomposites were successfully prepared by melt blending method. PLA/EPO reinforced with xGnP resulted in an increase of up to 26.5% and 60.6% in the tensile strength and elongation at break of the nanocomposites respectively, compared to PLA/EPO blend. XRD pattern showed the presence of peak around 26.5° in PLA/EPO nanocomposites which corresponds to characteristic peak of graphene nanoplatelets. However, incorporation of xGnP has no effect on the flexural strength and modulus. Impact strength of PLA/5 wt% EPO improved by 73.6% with the presence of 0.5 wt% xGnP loading. Mechanical properties of PLA were greatly improved by the addition of a small amount of graphene nanoplatelets (<1 wt%).

No MeSH data available.