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Elucidating the plasticizing effect on mechanical and thermal properties of poly(lactic acid)/carbon nanotubes nanocomposites

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Abstract

Poly(lactic acid) (PLA) is a biodegradable plastic and grabs attention in several applications such as biomedical implantation, film, packaging and clothing. Instead, PLA itself has a characteristic of brittleness, resulting in poor mechanical properties, and its slow ability in degradation leads to waste disposal problem. The present research aims to develop material in such a way to have a good combination of properties and optimum degradation ability. The PLA nanocomposites were prepared via melt blending that consisted of two types of carbon nanotubes (CNTs): unmodified carbon nanotubes (CNTs) and modified CNTs (mCNTs). The effect of 5 wt% poly (ethylene glycol) (PEG) as plasticizer on nanocomposites with CNTs material loading at 0.5 wt%, 1.0 wt%, 1.5 wt% and 2.0 wt% was studied. The analysis of physical properties was done using hardness testing and melt flow index (MFI). Neat PLA only gave around 69.0–77.6 Shore D in hardness test, while MFI exhibited around 36.1–39.4 g/10 min. PLA/mCNTs and PLA/PEG/mCNTs at 1.5 wt% exhibited the highest values of hardness testing which were 86.0 and 85.9 Shore D, respectively. In MFI study, the results were 70.0 g/10 min for PLA/mCNTs and 80.3 g/10 min for PLA/PEG/mCNTs. This proved that the PEG is useful in reducing the brittleness of nanocomposite. The full exfoliation of CNTs and mCNTs in the matrix observed from the X-ray diffraction analysis supported the excellent hardness and MFI properties. These nanocomposites also showed high thermal stability as obtained from differential scanning calorimetry and thermogravimetric analysis studies compared with neat PLA. The morphology study by field emission scanning electron microscopy analysis confirmed these findings through the existence of a smooth fracture surface, especially when PEG was loaded as evidence of good distribution of nanofiller in the matrix was established. Based on all analyses done, PLA/PEG/mCNTs were chosen as the good nanocomposite among others.

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References

  1. Farah S, Anderson DG, Langer R (2016) Physical and mechanical properties of PLA, and their functions in widespread applications—a comprehensive review. Adv Drug Deliv Rev 107:367–392

    Article  CAS  Google Scholar 

  2. Dorigato A, Brugnara M, Pegoretti A (2017) Synergistic effects of carbon black and carbon nanotubes on the electrical resistivity of poly(butylene-terephthalate) nanocomposites. Adv Polym Technol 37(6):1744–1754. https://doi.org/10.1002/adv.21833

    Article  CAS  Google Scholar 

  3. Ahn K, Kim S-M, Yu IJ (2011) Multi-walled carbon nanotube (MWCNT) dispersion and aerosolization with hot water atomization without addition of any surfactant. Saf Health Work 2(1):65–69

    Article  CAS  Google Scholar 

  4. Kharissova OV, Kharisov BI (2014) Variations of interlayer spacing in carbon nanotubes. RSC Adv 4(58):30807–30815. https://doi.org/10.1039/C4RA04201H

    Article  CAS  Google Scholar 

  5. Barick AK, Tripathy DK (2018) Preparation and characterization of thermoplastic polyurethane/carbon nanotube. In: 18th International conference on composite materials, pp. 1–6.

  6. Ahmad FA et al (2020) Biodegradable poly(lactic acid)/poly(ethylene glycol) reinforced multi-walled carbon nanotube nanocomposite fabrication, characterization, properties, and applications. Polymers 12(2):427. https://doi.org/10.3390/polym12020427

    Article  CAS  PubMed Central  Google Scholar 

  7. da Silva JA, Dalmolin C, Pachekoski WM, Becker D (2018) The combined effect of plasticizers and graphene on properties of poly(lactic acid). J Appl Polym Sci 46745:1–8

    Google Scholar 

  8. Chieng BW, Ibrahim NA, Yunus WMZW, Hussein MZ (2014) Poly(lactic acid)/poly(ethylene glycol) polymer nanocomposites: Effects of graphene nanoplatelets. Polymers (Basel) 6(1):93–104

    Article  Google Scholar 

  9. Kwiatkowska M, Pełech R, Jędrzejewska A, Moszyński D, Pełech I (2020) Different approaches to oxygen functionalization of multi-walled carbon nanotubes and their effect on mechanical and thermal properties of polyamide 12 based composites. Polymers 12(2):308. https://doi.org/10.3390/polym12020308

    Article  CAS  PubMed Central  Google Scholar 

  10. Anandhi CMS, Premkumar S, Asath RM, Mathavan T, Benial AMF (2016) Spectroscopic investigations on oxidized multi-walled carbon nanotubes. In: AIP Conference Proceedings (Vol. 1728, No. 1, p. 020456). AIP Publishing LLC.

  11. Reddy KR, Sin BC, Ryu KS, Kim JC, Chung H, Lee Y (2009) Conducting polymer functionalized multi-walled carbon nanotubes with noble metal nanoparticles: synthesis, morphological characteristics and electrical properties. Synth Met 159(7–8):595–603

    Article  CAS  Google Scholar 

  12. Bussy C et al (2012) Critical role of surface chemical modifications induced by length shortening on multi-walled carbon nanotubes-induced toxicity. Part Fibre Toxicol 9:46

    Article  CAS  Google Scholar 

  13. Zhang QP et al (2017) A feasible strategy to balance the crystallinity and specific surface area of metal oxide nanocrystals. Sci Rep 7(1):46424

    Article  CAS  Google Scholar 

  14. Zawawi NA, Majid ZA, Aini N, Rashid A (2016) Effect of acid oxidation methods on multi- walled carbon nanotubes (MWCNT) for drug delivery application. Int J Adv Sci Res Manag 1(11):14–2

    Google Scholar 

  15. Yetgin SH (2019) Effect of multi walled carbon nanotube on mechanical, thermal and rheological properties of polypropylene. J Mater Res Technol 8(5):4725–4735. https://doi.org/10.1016/j.jmrt.2019.08.018

    Article  CAS  Google Scholar 

  16. Ma P, Xu Y, Wang D, Dong W, Chen M (2014) Rapid crystallization of poly(lactic acid) by using tailor-made oxalamide derivatives as novel soluble-type nucleating agents. Ind Eng Chem Res 53(32):12888–12892

    Article  CAS  Google Scholar 

  17. Halász K, Csóka L (2013) Plasticized biodegradable poly(lactic acid) based composites containing cellulose in micro- and nanosize. J Eng 2013:1–9

    Article  Google Scholar 

  18. Wang L, Qiu J, Sakai E, Wei X (2016) The relationship between microstructure and mechanical properties of carbon nanotubes/polylactic acid nanocomposites prepared by twin-screw extrusion. Compos Part A Appl Sci Manuf 89:18–25

    Article  CAS  Google Scholar 

  19. Jia S, Yu D, Zhu Y, Wang Z, Chen L, Fu L (2017) Morphology, crystallization and thermal behaviors of PLA-based composites: wonderful effects of hybrid GO/PEG via dynamic impregnating. Polymers (Basel) 9(528):1–18

    Google Scholar 

  20. Wypych G (2017) Effect of plasticizers on properties of plasticized materials. In: Wypych G (ed) Handbook of Plasticizers. ChemTec Publishing, Canada, pp 209–306

    Chapter  Google Scholar 

  21. Fehri S, Cinelli P, Coltelli M-B, Anguillesi I, Lazzeri A (2016) Thermal properties of plasticized poly (lactic acid) (PLA) containing nucleating agent. Int J Chem Eng Appl 7(2):85–88

    CAS  Google Scholar 

  22. Xu J-Z, Zhang Z-J, Xu H, Chen J-B, Ran R, Li Z-M (2015) Highly enhanced crystallization kinetics of poly(L-lactic acid) by poly(ethylene glycol) grafted graphene oxide simultaneously as heterogeneous nucleation agent and chain mobility promoter. Macromolecules 48(14):4891–4900

    Article  CAS  Google Scholar 

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Acknowledgements

The authors thankfully acknowledge University College TATI and Universiti Malaysia Pahang for providing laboratory facilities and giving supports for this study.

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Authors and Affiliations

  1. Faculty of Engineering Technology, University College TATI, Jalan Panchor, Teluk Kalong, 24000, Kemaman, Terengganu Darul Iman, Malaysia

    H. Norazlina

  2. College of Engineering, Universiti Malaysia Pahang, 26300, Pekan, Pahang Darul Makmur, Malaysia

    Y. Kamal

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  1. H. Norazlina
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  2. Y. Kamal
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Correspondence to H. Norazlina.

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Norazlina, H., Kamal, Y. Elucidating the plasticizing effect on mechanical and thermal properties of poly(lactic acid)/carbon nanotubes nanocomposites. Polym. Bull. 78, 6911–6933 (2021). https://doi.org/10.1007/s00289-020-03471-2

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  • DOI: https://doi.org/10.1007/s00289-020-03471-2

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