Thermal behavior of PLA plasticized by commercial and cardanol-derived plasticizers and the effect on the mechanical properties

Greco, Antonio; Ferrari, Francesca

doi:10.1007/s10973-020-10403-9

Cited by 45 publications

(37 citation statements)

References 40 publications

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“…The DSC curves of 3D printing filaments displayed endothermic T g regions and endothermic T m peaks. This shows that the endothermic T g peak is related to PLA chain relaxation [ 33 ]. Table 1 shows that the neat PLA filament has lower T g and T m values when compared with the filaments of PLA composited with ZnO nanoflowers.…”

Section: Resultsmentioning

confidence: 99%

A Comprehensive Evaluation of Mechanical, Thermal, and Antibacterial Properties of PLA/ZnO Nanoflower Biocomposite Filaments for 3D Printing Application

et al. 2022

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Functionalities of 3D printing filaments have gained much attention owing to their properties for various applications in the last few years. Innovative biocomposite 3D printing filaments based on polylactic acid (PLA) composited with ZnO nanoflowers at varying contents were successfully fabricated via a single-screw extrusion technique. The effects of the varying ZnO nanoflower contents on their chemical, thermal, mechanical, and antibacterial properties were investigated using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and tensile testing, as well as qualitative and quantitative antibacterial tests, respectively. It was found that the ZnO nanoflowers did not express any chemical reactions with the PLA chains. The degrees of the crystallinity of the PLA/ZnO biocomposite filaments increased when compared with those of the neat PLA, and their properties slightly decreased when increasing the ZnO nanoflower contents. Additionally, the tensile strength of the PLA/ZnO biocomposite filaments gradually decreased when increasing the ZnO nanoflower contents. The antibacterial activity especially increased when increasing the ZnO nanoflower contents. Additionally, these 3D printing filaments performed better against Gram-positive (S. aureus) than Gram-negative (E. coli). This is probably due to the difference in the cell walls of the bacterial strains. The results indicated that these 3D printing filaments could be utilized for 3D printing and applied to medical fields.

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Section: Resultsmentioning

confidence: 99%

A Comprehensive Evaluation of Mechanical, Thermal, and Antibacterial Properties of PLA/ZnO Nanoflower Biocomposite Filaments for 3D Printing Application

et al. 2022

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“…A decrease in the molecular weight of PLA results in decreasing its melt strength. [54,72,73] POSS is a new generation of nanofillers with organic/inorganic hybrid structures having enough potential of reinforcement and improved thermal stability of polymers. The incorporation of POSS nanoparticles provides PLA with better flame retardancy, enhanced thermal stability, and molecular reinforcement.…”

Section: Effect Of Poss On the Thermal Properties Of Plamentioning

confidence: 99%

A review on polyhedral oligomeric silsesquioxanes as a new multipurpose nanohybrid additive for poly(lactic acid) and poly(lactic acid) hybrid composites

et al. 2022

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The production of petroleum‐based polymers in huge amounts is perilous for our ecosystem and oil reserves. The use of biodegradable polymers instead of synthetic polymers for various commodity, engineering, and biomedical applications remains the overriding concern of the researchers in last decades. Although poly(lactic acid) (PLA) is considered to be the most befitting substitute for conventional petroleum‐based products because of its superlative mechanical properties, material & processing cost, and non‐toxicity, they have some consequential limitations for various applications because of their slow rate of crystallization, low thermal stability, high brittleness, and low toughness. To overwhelm these deficiencies during the last two decades, researchers have developed various techniques to tailor the properties of PLA, that is, blending with other polymers or using additives such as nanofillers. Among all the nanofillers, for example, carbon nanotubes and organoclays, polyhedral oligomeric silsesquioxanes (POSS) was found the most promising nanofiller because of its organic and inorganic nanostructure and fine dispersion into PLA matrix. This article reviews all the investigations relevant to POSS incorporation into PLA or blends of PLA with other polymers to compare the mechanical, morphological, and physical properties of the ameliorated composites and the neat PLA.

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“…Currently, there are different kinds of cardanol plasticizers including cardanol acetate, epoxidated cardanol acetate, methoxylated hydroxyethyl cardanol, and cardanol glycidyl ether 37 . Although, the major efforts have explored the use of cardanol‐based plasticizers for PVC, several recent endeavors have investigated the utilization of cardanol‐based plasticizers for compostable polymers, mostly for PLA 38–43 . The functionalized cardanol in biobased polymers and additives possesses unique strength properties 44 .…”

Section: Cardanol‐based Bioplasticizersmentioning

confidence: 99%

Developments of biobased plasticizers for compostable polymers in the green packaging applications: A review

Alhanish

Ghalia

2021

Biotechnology Progress

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The demand for biobased materials for various end‐uses in the bioplastic industry is substantially growing due to increasing awareness of health and environmental concerns, along with the toxicity of synthetic plasticizers such as phthalates. This fact has stimulated new regulations requiring the replacement of synthetic conventional plasticizers, particularly for packaging applications. Biobased plasticizers have recently been considered as essential additives, which may be used during the processing of compostable polymers to enormously boost biobased packaging applications. The development and utilization of biobased plasticizers derived from epoxidized soybean oil, castor oil, cardanol, citrate, and isosorbide have been broadly investigated. The synthesis of biobased plasticizers derived from renewable feedstocks and their impact on packaging material performance have been emphasized. Moreover, the effect of biobased plasticizer concentration, interaction, and compatibility on the polymer properties has been examined. Recent developments have resulted in the replacement of synthetic plasticizers by biobased counterparts. Particularly, this has been the case for some biodegradable thermoplastics‐based packaging applications.

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Thermal behavior of PLA plasticized by commercial and cardanol-derived plasticizers and the effect on the mechanical properties

Cited by 45 publications

References 40 publications

A Comprehensive Evaluation of Mechanical, Thermal, and Antibacterial Properties of PLA/ZnO Nanoflower Biocomposite Filaments for 3D Printing Application

A Comprehensive Evaluation of Mechanical, Thermal, and Antibacterial Properties of PLA/ZnO Nanoflower Biocomposite Filaments for 3D Printing Application

A review on polyhedral oligomeric silsesquioxanes as a new multipurpose nanohybrid additive for poly(lactic acid) and poly(lactic acid) hybrid composites

Developments of biobased plasticizers for compostable polymers in the green packaging applications: A review

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