Thermal, nanoindentation and dielectric study of nanocomposites based on poly(propylene furanoate) and various inclusions

Klonos, Panagiotis Α.; Papadopoulos, Lazaros; Tzetzis, Dimitrios; Kyritsis, Apostolos; Papageorgiou, George Z.; Bikiaris, Dimitrios N.

doi:10.1016/j.mtcomm.2019.100585

Cited by 30 publications

(53 citation statements)

References 77 publications

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“…β exhibits a disturbance in time scale at elevated temperatures (arrows in Figure 11a). Similar observations were made in PPF-and PBF-based PNCs and in poly(ethylene furanoate) [67], with this disturbance on β seeming to correlate either with T approaching that of cold crystallization or the T g [34,37]. More recently, we provided evidence for the second case in PPF-based PNCs [51].…”

Section: Resultssupporting

confidence: 85%

“…Before proceeding with the presentation and discussion of results, we should note that the relatively low amount of 1 to 3.5 wt % for such fillers, and especially graphene, along with the in situ preparation method for PNCs, were selected based on our previous experience. In similar polyesters based on FDCA and reinforced with graphene [36,37], CNTs [51], MMTs [34] at such low loadings were found to demonstrate optimum improvements in crystallization and mechanical performance in connection to good filler dispersion. In addition, out of the methods for preparation of PNCs, e.g., melt-mixing, "in situ polymerization" offers the benefit of better and more uniform filler dispersion within the polymer matrix.…”

Section: Resultsmentioning

confidence: 96%

“…As in the majority of semicrystalline polymers, the mechanical performance in the FDCA-based polyesters is strongly connected with the degree of crystallinity and crystal structure [34][35][36][37]. To increase crystallinity, except for modifying the polymer structure or developing special thermal treatments, another common strategy refers to the introduction in the polymer matrix of properly selected inorganic nano-inclusions [7,16,38].…”

Section: Introductionmentioning

confidence: 99%

“…To increase crystallinity, except for modifying the polymer structure or developing special thermal treatments, another common strategy refers to the introduction in the polymer matrix of properly selected inorganic nano-inclusions [7,16,38]. This strategy proved successful in our recently published work for PPF and PBF [34,36,37]. Furthermore, we showed that even very small amounts of filler loadings (0.5, 1, 2 wt %) can impose significant improvements in the rate of crystallization of FDCA-based polyesters, in particular when this is combined with in situ PNC synthesis.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, we showed that even very small amounts of filler loadings (0.5, 1, 2 wt %) can impose significant improvements in the rate of crystallization of FDCA-based polyesters, in particular when this is combined with in situ PNC synthesis. These improvements were interpreted in terms of the fillers acting as additional (heterogeneous) crystallization nuclei, whereas, interestingly, the filler aspect ratio (AR) seems to be the key parameter that controls the crystallization enhancement [7,37,39,40].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Calorimetric and Dielectric Study of Renewable Poly(hexylene 2,5-furan-dicarboxylate)-Based Nanocomposites In Situ Filled with Small Amounts of Graphene Platelets and Silica Nanoparticles

et al. 2020

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Poly(hexylene 2,5 furan-dicarboxylate) (PHF) is a relatively new biobased polyester prepared from renewable resources, which is targeted for use in food packaging applications, owing to its great mechanical and gas barrier performance. Since both properties are strongly connected to crystallinity, the latter is enhanced here by the in situ introduction in PHF of graphene nanoplatelets and fumed silica nanoparticles, as well as mixtures of both, at low amounts. For this investigation, we employed Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and dielectric spectroscopy (BDS). The fillers were found to improve crystallization in both the rate (increasing Tc) and fraction (CF), which was rationalized via the concept of fillers acting as crystallization agents. This action was found stronger in the case of graphene as compared to silica. BDS allowed the detection of local and segmental dynamics, in particular in PHF for the first time. The glass transition dynamics in both BDS (α relaxation) and DSC (Tg) are mainly dominated by the relatively high CF, whereas in the PHF filled uniquely with silica strong spatial confinement effects due to crystals were revealed. Finally, all samples demonstrated the segmental-like dynamics above Tg, which screens the global chain dynamics (normal mode).

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Section: Resultssupporting

confidence: 85%

Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Calorimetric and Dielectric Study of Renewable Poly(hexylene 2,5-furan-dicarboxylate)-Based Nanocomposites In Situ Filled with Small Amounts of Graphene Platelets and Silica Nanoparticles

et al. 2020

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Crystallization kinetics and nanomechanical behavior of biobased poly(ethylene 2,5‐furandicarboxylate) reinforced with carbon nanotubes

et al. 2022

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Poly(ethylene 2,5‐furandicarboxylate) (PEF) is one of the most widely known biobased polyesters due to its outstanding gas barrier and mechanical properties, making it the number one candidate to substitute poly(ethylene terephthalate) (PET). However, its crystallization from the melt is much slower compared to PET, affecting the overall processing of the material. For this reason, PEF nanocomposites containing various carbon nanotubes (CNTs) loadings (0–2.5 wt%) have been in situ synthesized in this work. Differential scanning calorimetry (DSC) measurements were conducted to evaluate all the prepared materials' isothermal and nonisothermal crystallization kinetics. Isothermal kinetics using the Avrami and Hoffman–Lauritzen (H–L) theories suggested that the nucleating effect of the CNTs is more profound during the crystallization from the melt, where the higher crystallization rate is observed in the case of PEF/2.5 CNTs nanocomposite. This is also confirmed by the nonisothermal crystallization analysis. The nucleation activity of the filler was estimated by Dobreva's method, which revealed that higher CNTs (1 and 2.5 wt%) content presents increased nucleation efficiency during the process. The nanoindentation results showed that the addition of CNTs in the PEF matrix enhanced the nanomechanical properties of PEF. Semicrystalline samples presented significantly higher hardness (H) and elastic modulus (E) values compared to their amorphous counterparts, where semicrystalline PEF/2.5 CNTs nanocomposite presented 135% increase of E compared to the amorphous neat PEF.

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The effect of annealing on tensile properties of injection molded biopolyesters based on 2,5‐furandicarboxylic acid

Zubkiewicz

Paszkiewicz

Szymczyk

2021

Polymer Engineering & Sci

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In this study, we investigate four polyesters based on 2,5-furandicarboxylic acid and different diols including 1,2-ethylene glycol, 1,3-propylene glycol, 1,4-butylene glycol, and 1,6-hexylene glycol. Poly(ethylene 2,5-furanoate), poly(propylene 2,5-furanoate), poly(butylene 2,5-furanoate), and poly(hexylene 2,5-furanoate) (PHF) were characterized by thermogravimetric analysis, X-ray diffraction, differential scanning calorimeter, and tensile tests. In addition, the influence of annealing polyesters on their thermal and mechanical properties was investigated. For these reasons samples for the tensile test were prepared by injection molding. The tensile properties of injection molded samples were compared with samples that were additionally annealed after injection molding. All studied polyesters after heating treatment showed multiple melting behavior. The increase in the degree of crystallinity significantly influenced also the mechanical properties of the samples. It was found that the length of the aliphatic chain and degree of crystallinity plays a major role in the final properties of furan-based polyesters.

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Thermal, nanoindentation and dielectric study of nanocomposites based on poly(propylene furanoate) and various inclusions

Cited by 30 publications

References 77 publications

Calorimetric and Dielectric Study of Renewable Poly(hexylene 2,5-furan-dicarboxylate)-Based Nanocomposites In Situ Filled with Small Amounts of Graphene Platelets and Silica Nanoparticles

Calorimetric and Dielectric Study of Renewable Poly(hexylene 2,5-furan-dicarboxylate)-Based Nanocomposites In Situ Filled with Small Amounts of Graphene Platelets and Silica Nanoparticles

Crystallization kinetics and nanomechanical behavior of biobased poly(ethylene 2,5‐furandicarboxylate) reinforced with carbon nanotubes

The effect of annealing on tensile properties of injection molded biopolyesters based on 2,5‐furandicarboxylic acid

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