Structure and properties of hybrid PLA nanocomposites with inorganic nanofillers and cellulose fibers

Piekarska, Klaudia; Sowiński, Przemysław; Piórkowska, Ewa; Haque, Md. Minhaz‐Ul; Pracellà, Mariano

doi:10.1016/j.compositesa.2015.11.019

Cited by 92 publications

(53 citation statements)

References 34 publications

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“…Furthermore, the Δ H cc and Δ H m of the Ti 3 C 2 T x ‐g‐ SA/PLA composites are improved with the increasing of Ti 3 C 2 T x ‐g‐ SA addition content, and the composite with 2 wt % Ti 3 C 2 T x ‐g‐ SA attains the highest values. These phenomena are similar to the reports of Lezak and Piekarska . They consider that the phenomena are due to the plasticization and heterogeneous nucleation synergistic effect of Ti 3 C 2 T x ‐g‐ SA.…”

Section: Resultssupporting

confidence: 90%

Enhanced mechanical properties of poly(lactic acid) composites with ultrathin nanosheets of MXene modified by stearic acid

Yang

Liu

et al. 2019

J of Applied Polymer Sci

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MXene modified by stearic acid (Ti 3 C 2 T x -g-SA) is incorporated into poly(lactic acid) (PLA) matrix to prepare Ti 3 C 2 T x -g-SA/PLA composites. The effects of Ti 3 C 2 T x -g-SA to pure PLA are investigated, including crystallization, mechanical, and thermal properties. Fourier transform infrared spectroscopy and X-ray diffraction analyses confirm that Ti 3 C 2 T x interlayer is successfully intercalated by SA, and the interlayer spacing of Ti 3 C 2 T x is increased. Differential scanning calorimetry illustrates that the cold crystallization enthalpy (ΔH cc ), melting enthalpy (ΔH m ), and crystallinity (X c ) of Ti 3 C 2 T x -g-SA/PLA composites are improved by the plasticization and heterogeneous nucleation effect of Ti 3 C 2 T x -g-SA. Specially, the Ti 3 C 2 T x -g-SA/PLA composites exhibit excellent mechanical properties at an appropriate content of the Ti 3 C 2 T x -g-SA. Compared with pure PLA, the elongation at break of the Ti 3 C 2 T x -g-SA/PLA composite is increased 5.9-fold (up to 131.6%) when only containing 0.5 wt % Ti 3 C 2 T x -g-SA. Besides, the Ti 3 C 2 T x -g-SA/PLA composites exhibit good thermal stability in the low loading (lower than 1 wt %) of Ti 3 C 2 T x -g-SA.

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Section: Resultssupporting

confidence: 90%

Enhanced mechanical properties of poly(lactic acid) composites with ultrathin nanosheets of MXene modified by stearic acid

Yang

Liu

et al. 2019

J of Applied Polymer Sci

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“…However, low thermal stability, limited toughness and low barrier properties have limited to PLA usage in many applications. On the other hand, melt blending and addition of selected additives into PLA matrix, which comprise various kinds of fillers such as carbon nanotubes (CNT), nanoclays (zinc oxide, silver, etc. ), halloysite nanotubes (HNT), graphite derivatives, and cellulose nanofiber (CNF) is a highly effective and compatible method for fabrication of PLA nanocomposite in order to expand PLA's applications and to improve thermal, mechanical and barrier properties compared to other techniques .…”

Section: Introductionmentioning

confidence: 99%

Effects of halloysite nanotube on the performance of natural fiber filled poly(lactic acid) composites

2019

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Poly(lactic acid) (PLA) derived from renewable resources is an alternative to petroleum-based polymers. In this work, natural fiber filled PLA-halloysite nanotube (HNT) composites were prepared using melt blending followed by compression molding. Maleic anhydride grafted onto PLA (MA-g-PLA) was used to improve the interfacial bonding quality between hydrophobic and hydrophilic phases in the natural fiber filled PLA-HNT composites. The performance properties of the natural fiber filled PLA-HNT composites were characterized by tensile, flexural and impact tests, thermogravimetric analysis, differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). DSC results showed that the loading of HNT could promote cold crystallization, and the improvement of crystallinity of the PLA-HNT composites was by 16% with the addition of MA-g-PLA.The flexural and impact strengths of PLA-HNT composites were not affected adversely up to 10 phr of HNT loading, but tensile strength of PLA-HNT composites decreased gradually. In addition, numerous agglomerates of the nanotubes for PLA-HNT composites with 15 phr loading of HNT were detected with SEM micrographs. However, moduli of elasticity of PLA-HNT composites enhanced by 40% with increment of HNT loading in polymer matrix. Based on the findings, HNT could be used as nanofiller up to 10 phr in PLA matrix.

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“…The numerous advantages of natural fibers such as low density, low cost, worldwide availability, renewability, and biodegradability allow them to be the more judicious candidate for the substitution of mineral reinforcements and the conception of biodegradable materials . They permit also to reduce the use of nondegradable polymers which cause serious environmental problems . Actually, a tremendous increase in interest, research and development is devoted to the combination of natural fibers and biosourced polymers to produce totally biodegradable composites for application in packaging and agriculture particularly .…”

Section: Introductionmentioning

confidence: 99%

“…Polylactide (PLA) is considered as one of the best substitutes for various petroleum‐based polymers in the framework of environmental‐friendly processes and products especially in the past decades . However, its brittleness and reduced stiffness are limiting its further development.…”

Section: Introductionmentioning

confidence: 99%

Compatibilization of biocomposites based on sponge‐gourd natural fiber reinforced poly(lactic acid)

et al. 2019

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To prepare fully biodegradable materials, variable concentrations of luffa fiber (LF) namely 1, 3, and 5 phr, were incorporated into a poly(lactic acid) (PLA) matrix. To counteract the poor adhesion of the LF to PLA, a compatibilizer which is maleic anhydride‐grafted poly(lactic acid) has been incorporated and the properties of the composites with and without compatibilizer noted, respectively, PLA/LF and PLA/PLA‐g‐maleic anhydride (MA)/LF, were compared. The final torque of PLA/LF was found to decrease with the LF content contrary to that of PLA/PLA‐g‐MA/LF composite which was seen to increase as a result of the interfacial reaction occurring between maleic anhydride groups of the compatibilizer and the hydroxyls of LF. This outcome has been evidenced from the Fourier transform infrared spectroscopy which pointed out the disappearance of the vibration band owing to the anhydride groups of the compatibilizer from the spectra of the PLA/PLA‐g‐MA/LF composite and the better impregnation of LF by the matrix as it has been observed from scanning electron microscopy. Subsequently, the Izod impact strength of the compatibilized composites was seen to increase, especially for 1 phr of LF, whereas the water uptake aptitude was considerably reduced. Also, PLA phase into the composites exhibited lower thermal stability and glass transition temperature compared to pristine PLA.

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Structure and properties of hybrid PLA nanocomposites with inorganic nanofillers and cellulose fibers

Cited by 92 publications

References 34 publications

Enhanced mechanical properties of poly(lactic acid) composites with ultrathin nanosheets of MXene modified by stearic acid

Enhanced mechanical properties of poly(lactic acid) composites with ultrathin nanosheets of MXene modified by stearic acid

Effects of halloysite nanotube on the performance of natural fiber filled poly(lactic acid) composites

Compatibilization of biocomposites based on sponge‐gourd natural fiber reinforced poly(lactic acid)

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