Extraordinary toughness enhancement of poly(lactic acid) by incorporating very low loadings of noncovalent functionalized graphene-oxide via masterbatch-based melt blending
2018
Abstract In this work, poly(lactic acid) (PLA)/graphene oxide nanocomposites were prepared by pre-incorporating noncovalently functionalized GO (f-GO) with didodecyldimethylammonium bromide (DDAB) into PLA via solvent-mixing and subsequently masterbatch-based melt blending. The introduction of only 0.2 wt% f-GO into PLA achieved an extraordinarily 26.6-fold increase in elongation-at-break relative to PLA without sacrificing strengths. Such an extraordinary improvement in toughness was attributed to the excellent exfoliation of GO sheets and appropriate level of interfacial adhesion between PLA and modified GO nanosheets, thus facilitating the yielding of the matrix.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
39
References
19
Citations
NaN
KQI