Harnessing the ductility of polylactic acid/ halloysite nanocomposites by synergistic effects of impact modifier and plasticiser

Sharma, Swati; Singh, Avinash; Majumdar, Abhijit; Butola, Bhupendra Singh

doi:10.1016/j.compositesb.2020.107845

Cited by 41 publications

(32 citation statements)

References 43 publications

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“…Sharma et al 89 prepared PLA nanocomposite reinforced with halloysite (H1), lotader impact modifier (L10), triethyl citrate plasticizer (T10), and varying ternary combinations (PLA/L10/H, PLA/T10/H, PLA/L10/T10) and quaternary PLA/L10/T10/H1 nanocomposite systems. All the samples exhibited a Newtonian behavior, at lower shear rate (less than 10/s), which makes the extrudate to be coherent during extrusion.…”

Section: Preparation Of Pla Nanocompositesmentioning

confidence: 99%

Effect of rigid nanoparticles and preparation techniques on the performances of poly(lactic acid) nanocomposites: A review

Sanusi

Benelfellah

Bikiaris

et al. 2020

Polymers for Advanced Techs

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The global concern over the environmental protection and bio‐sustainability of plastic waste materials has prompted a vibrant search for renewable and biodegradable polymers in the academia and industrial sectors. Amidst other biopolymers, poly(lactic acid) (PLA) is identified as the most promising thermoplastic aliphatic polyester. PLA is derived from agricultural products with unique physical and mechanical properties that are comparable with the conventional petroleum‐derived polymers. Yet, some of the properties are insufficient for advanced materials applications. Rigid nanoparticles are incorporated in the PLA matrix to alleviate its properties for specific high‐performance applications. Here, we report various approaches of preparing functional PLA nanocomposites with emphasis on the strengths and weaknesses of each of the methods, as well as the achieved properties enhancement for a targeted application. Designing high‐performance PLA nanocomposite involves careful selection of the most appropriate nanofillers or combinations of nanofillers, preparation technique and processing parameters. Besides multi‐walled carbon nanotubes (CNT) and montmorillonite (MMT) that are prominent as nucleating agents to achieve high thermal and mechanical properties, other nanofillers like silver nanoparticles (AgNP) play critical roles in improving antibacterial and high‐performance properties of PLA.

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Section: Preparation Of Pla Nanocompositesmentioning

confidence: 99%

Effect of rigid nanoparticles and preparation techniques on the performances of poly(lactic acid) nanocomposites: A review

Sanusi

Benelfellah

Bikiaris

et al. 2020

Polymers for Advanced Techs

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“…properties. Thus, one approach to preparing cellulose composite laments is to improve the mechanical properties (Wang and Gardner 2017;Tekinalp et al 2019;Sharma et al 2020). PLA/microcrystalline cellulose (MCC) composite laments were found to be successfully prepared using polyethylene glycol (PEG) and silane coupling agent (KH-550) as a plasticizer and a surface modi cation agent, respectively.…”

Section: Introductionmentioning

confidence: 99%

Polylactic acid/kenaf cellulose biocomposite filaments for melt extrusion based-3D printing

et al. 2021

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This study fabricated polylactic acid (PLA)/kenaf cellulose ber biocomposite laments via meltextrusion process. Kenaf cellulose bers (KF) were chemically extracted from locally grown kenaf plants and used as reinforcement. Moreover, the KF was then treated with tetraethyl orthosilicate (TEOS), socalled KFs, to improve the compatibility between the bers and PLA matrix. Also, the plasticizers (polyethylene glycol) were incorporated to enhance the owability and processability of the biocomposites. The melt viscosities of the biocomposites increased as the solid KF and KFs were loaded. However, they were signi cantly decreased with the addition of plasticizers. The combined use of the plasticizers and TEOS treatment improved tensile strength, Young's modulus and elongation of the biocomposites compared to the neat PLA. The obtained PLA/KFs biocomposite materials are proved to be a mechanical-improved material, which offers the opportunity for customized and rapid prototyping of biocomposite products.

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“…Due to the wide number of biopolymer/nanofiller combinations, a large variety of bionanocomposites having tailored structural and/or functional properties and with application ranging from packaging [ 9 , 10 ] to agriculture [ 11 ] or automotive industry [ 12 ] can be designed and produced. Polylactic acid (PLA) represents the most used matrix for the formulation of bionanocomposites, due to its large utilization also at industrial scale [ 13 , 14 , 15 , 16 ]; nanoclays [ 17 ], graphene [ 18 ] and cellulose nanocrystals [ 19 ], among a few to mention, have been widely exploited as nanofillers for PLA-based systems, showing a great potential for the enhancement of the mechanical, optical, and barrier properties of this biopolymer.…”

Section: Introductionmentioning

confidence: 99%

Structure–Property Relationships in Bionanocomposites for Pipe Extrusion Applications

et al. 2021

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In this work, bionanocomposites based on different biodegradable polymers and two types of nanofillers, namely a nanosized calcium carbonate and an organomodified nanoclay, were produced through melt extrusion, with the aim to evaluate the possible applications of these materials as a potential alternative to traditional fossil fuel-derived polyolefins, for the production of irrigation pipes. The rheological behavior of the formulated systems was thoroughly evaluated by exploiting different flow regimes, and the obtained results indicated a remarkable effect of the introduced nanofillers on the low-frequency rheological response, especially in nanoclay-based bionanocomposites. Conversely, the shear viscosity at a high shear rate was almost unaffected by the presence of both types of nanofillers, as well as the rheological response under nonisothermal elongational flow. In addition, the analysis of the mechanical properties of the formulated materials indicated that the embedded nanofillers increased the elastic modulus when compared to the unfilled counterparts, notwithstanding a slight decrease of the material ductility. Finally, the processing behavior of unfilled biopolymers and bionanocomposites was evaluated, allowing for selecting the most suitable material and thus fulfilling the processability requirements for pipe extrusion applications.

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Harnessing the ductility of polylactic acid/ halloysite nanocomposites by synergistic effects of impact modifier and plasticiser

Cited by 41 publications

References 43 publications

Effect of rigid nanoparticles and preparation techniques on the performances of poly(lactic acid) nanocomposites: A review

Effect of rigid nanoparticles and preparation techniques on the performances of poly(lactic acid) nanocomposites: A review

Polylactic acid/kenaf cellulose biocomposite filaments for melt extrusion based-3D printing

Structure–Property Relationships in Bionanocomposites for Pipe Extrusion Applications

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