Improvement of barrier properties of glycol modified poly(ethylene terephthalate) based nanocomposites containing graphene derivatives forms

Paszkiewicz, Sandra; Szymczyk, Anna; Pawlikowska, Daria; Irska, Izabela; Piesowicz, Elżbieta; Jotko, M.; Lisiecki, S.; Bartkowiak, Artur; Sieradzka, Marta; Fryczkowski, Ryszard; Kochmańska, A.; Kochmański, P.; Rosłaniec, Z.

doi:10.14314/polimery.2017.868

Cited by 6 publications

(14 citation statements)

References 5 publications

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“…Nevertheless, the improvement in impermeability in the case of PTF/0.3 FLG nanocomposite is due to relatively large and highly hydrophobic surface of FLG sheets, that inhibited the transport of oxygen molecules into and through the material, as well as to good distribution of FLG in the whole volume of PTF matrix (Figures 6b and 6c). This is in agreement with our studies on PET based hybrid nanocomposites [65] and PET-G/graphene derivatives forms nanocomposites [52] prepared by in situ polymerization.…”

Section: Thin Polymer Filmssupporting

confidence: 93%

“…Notwithstanding, the incorporation of FLG into PTF matrix didn't cause any changes in the glass transition temperature. This is in agreement with our previous studies on the nanocomposites based on thermoplastic polyesters [41,52,57]. Furthermore, it was confirmed by the research of prof. Macosko's group, which showed that the T g of polymer nanocomposites containing graphene can be increased only if strong interfacial interactions between polymers matrix and nanofillers occur [58,59].…”

Section: Thermal Characteristics Of Ptf/flg Nanocompositessupporting

confidence: 93%

“…All specimens with a thickness of approximately 2 mm were placed on both sides of the Hot Disk sensor touching the sensor with plane surfaces. Oxygen permeability was measured using a MoconOx-Tran 2/10 instrument (23°C and 0% relative humidity (RH)) in accordance with ISO 15105-2 standard, while water vapor permeability was measured using a moisture analyzer (MAC 50, RADWAG, Poland) equipped with Sampler 2000, both using 5 cm 2 samples of examined polymer films accordingly to the procedure previously described in detail in [45,52]. All polymer samples were conditioned for 3h in the test chamber of OX-Tran apparatus in test parameters (23°C and 0% humidity rate RH).…”

Section: Characterization and Measurementsmentioning

confidence: 99%

“…Well-dispersed PTF/FLG nanocomposites were fabricated through a simple in situ polymerization method, preceded by an additional step of dispersing FLG (bio-PDO) using ultra-high speed stirrer and next an ultrasonicator, as described in the experimental section. The FLG contains some residual oxygencontaining functional groups (around 6% of oxygen) mostly from the edges and adsorbed ethanol residue and can be dispersed very well in liquid monomers (like ethylene or propylene glycol) at the level of individual flakes [40,45,52]. The dispersion state of FLG flakes in the PTF matrix was detected by scanning electron microscopy (SEM) and Figure 1a and 1b show typical SEM images of the cross sections of the PTF/FLG nanocomposites with 0.1 and 0.3 wt% loading, respectively.…”

Section: Characterization and Measurementsmentioning

confidence: 99%

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New functional nanocomposites based on poly(trimethylene 2,5-furanoate) and few layer graphene prepared by in situ polymerization

Paszkiewicz¹,

Janowska²,

Pawlikowska³

et al. 2018

Express Polym. Lett.

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Section: Thin Polymer Filmssupporting

confidence: 93%

Section: Thermal Characteristics Of Ptf/flg Nanocompositessupporting

confidence: 93%

Section: Characterization and Measurementsmentioning

confidence: 99%

Section: Characterization and Measurementsmentioning

confidence: 99%

See 2 more Smart Citations

New functional nanocomposites based on poly(trimethylene 2,5-furanoate) and few layer graphene prepared by in situ polymerization

Paszkiewicz¹,

Janowska²,

Pawlikowska³

et al. 2018

Express Polym. Lett.

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“…SEM images of two series of EPDM/PETG (A1-A3) and EPDM/PEF blends (B1-B3) DSC thermograms recorded during 2ng heating for a) EPDM/PETG blends and b) EPDM/PEF blends EPDM-based blends caused an increase in the values of density. These values of density of blends are between the values of neat EPDM (about 0.86 g/cm 344 ) and PETG (~1.24 g/cm 3[45]) or PEF (~1.43 g/cm 346 ).…”

mentioning

confidence: 69%

Modification of substandard EPDM with amorphous thermoplastic polyesters (PETG and PEF): microstructure and physical properties

Paszkiewicz

Irska

Piesowicz

2018

Polish Journal of Chemical Technology

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The phase morphology, thermal behavior and mechanical properties of two series of polymer blends based on ethylene/propylene/diene rubber (EPDM) and amorphous homologues of poly(ethylene terephthalate), i.e. glycol modifi ed poly(ethylene terephthalate) (PETG) and poly(ethylene furanoate) (PEF), were investigated. The morphology of the blends shows a two phase structure in which the minor phase (amorphous polyester) is dispersed as domains in the major (EPDM) continuous matrix phase. Differential calorimetry studies confi rmed that both systems were immiscible and exhibits two glass transitions. The melting peak area of EPDM in the blends decreased as the amount of the other component increased. The values of stress at strain of 100% were improved upon the increasing content of PETG in EPDM system, while only slight decrease of this value was observed. Moreover, the strong improvement of hardness and thermo-oxidative stability along with an increasing content of amorphous polyester phase was reported.

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Influence of hybrid system of nanofillers on the functional properties of postconsumer PET‐G–based nanocomposites

Paszkiewicz

Taraghi

Pawlikowska

et al. 2019

Polymers for Advanced Techs

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In this article, postconsumer poly (ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate) (PET-G) foils have been modified with three types of carbon nanofillers that differ in size and shape, ie, multiwalled carbon nanotubes (MWCNTs), graphene nanoplatelets (GNP), and nanosized carbon black (nCB), thus enabling the reusage of recyclate in receiving new functional materials. The series of polymer hybrid nanocomposites have been prepared via a two-stage polycondensation process, be means of glycolysis of postconsumer PET-G foil, followed by polycondensation in the presence of carbon nanofillers. The scanning electron microscopy revealed that nanoadditives were uniformly dispersed into the whole volume of polymer matrix.The results present the synergistic effect of hybrid system of nanofillers in improving tensile properties of PET-G. It has been found that the incorporation of three types of carbon nanofillers has not affected the glass transition temperature of the polymer matrix. Moreover, the incorporation of carbon nanofillers, and the mixture of two, or even three of those, caused an improvement in thermal conductivity and thermal stability. KEYWORDScarbon-based hybrid nanofillers, glycol-modified poly (ethylene terephthalate), polymer hybrid nanocomposites, postconsumer materials, recycling

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Improvement of barrier properties of glycol modified poly(ethylene terephthalate) based nanocomposites containing graphene derivatives forms

Cited by 6 publications

References 5 publications

New functional nanocomposites based on poly(trimethylene 2,5-furanoate) and few layer graphene prepared by in situ polymerization

New functional nanocomposites based on poly(trimethylene 2,5-furanoate) and few layer graphene prepared by in situ polymerization

Modification of substandard EPDM with amorphous thermoplastic polyesters (PETG and PEF): microstructure and physical properties

Influence of hybrid system of nanofillers on the functional properties of postconsumer PET‐G–based nanocomposites

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