Morphology and properties of polymer/organoclay nanocomposites based on poly(ethylene terephthalate) and sulfopolyester blends

Ghanbari, Abbas; Heuzey, Marie‐Claude; Carreau, Pierre J.; Ton‐That, Minh‐Tan

doi:10.1002/pi.4331

Cited by 16 publications

(17 citation statements)

References 26 publications

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“…Polymerlayered silicate nanocomposites prepared with an organically modified montmorillonite (o-Mt) are of increasing interest for packaging applications. These nanocomposites show improved mechanical and barrier properties compared to the corresponding neat polymer matrix and conventional composites due to the nano-scale reinforcement and the tortuous diffusion path caused by the high aspect ratio of aluminosilicate layers [1][2][3][4][5] . In order to maximize these benefits it is necessary to achieve a high level of organoclay exfoliation, uniform distribution and appropriate orientation of clay platelets [6][7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

Effect of an Organo-Modified Montmorillonite on the Barrier Properties of PET Nanocomposites Using a Polyester Ionomer as a Compatibilizing Agent

Vidotti

Chinellato

et al. 2017

Mat. Res.

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Poly(ethylene terephthalate)/organically modified montmorillonite (PET/o-Mt) nanocomposites were prepared via melt intercalation in a twin-screw extruder using a polyester ionomer (PETi) as compatibilizer. The o-Mt content used was 0, 1, 3 or 5 wt% and the compatibilizer/o-Mt mass ratio was 0/1, 1/1 or 3/1. The main objective was to study the effects of the addition of o-Mt and compatibilizer on the barrier properties of PET/o-Mt nanocomposites. The nanocomposites showed a significant reduction in CO 2 permeability of up to 50% when compared to the neat PET, without significant change in the CO 2 solubility revealing the importance of the diffusional path imputed by the organoclay on the overall permeation process. Water vapor permeability was reduced for all nanocomposites, achieving up to 30% reduction for the nanocomposite containing a compatibilizer/o-Mt mass ratio of 1/1. Overall, the nanocomposite containing 5 wt% of organoclay and compatibilizer/o-Mt mass ratio of 1/1 showed the best barrier properties.

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Section: Introductionmentioning

confidence: 99%

Effect of an Organo-Modified Montmorillonite on the Barrier Properties of PET Nanocomposites Using a Polyester Ionomer as a Compatibilizing Agent

Vidotti

Chinellato

et al. 2017

Mat. Res.

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“…Table 1 shows considerable improvement in crystalline fraction for 0.5 wt% nanoclay filled PET-IP. This could be possibly due to the nucleation effect of the nanoclay during processing [20,21]. The crystalline fractions were reduced at higher nanoclay content ( ≥ 1 wt%), possibly due to the reduced Brought to you by | Western University Authenticated Download Date | 6/9/15 3:26 AM nucleation effect.…”

Section: Structure Of Nanocompositesmentioning

confidence: 90%

Mechanical and barrier properties of copolyester-nanoclay composites

Mohan

Kanny

2014

Journal of Polymer Engineering

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This paper examines the influence of nanoclay on the structure, thermal and mechanical and gas barrier properties of a polyethylene terephthalate (PET)-based copolyester using a new modified formula. The copolyester considered in this work consists of partially replaced acid and diol monomers in main chain PET polymers, namely, polyethylene glycol (PEG) and isophthalic acid monomers, i.e., PET-IP. Nanoclays were filled from 0-3 wt% in PET-IP using the melt mixing method. The structural examination of composites tested by X-ray diffraction (XRD) and transmission electron microscopy (TEM) revealed the distribution of nanolayers of clay particles in polymeric matrix. Up to 1 wt% nanoclay in PET-IP, an exfoliated structure resulted and above 1 wt% nanoclay an intercalated structure resulted. It was observed that 0.5 wt% nanoclay filled PET-IP resulted in improved nucleation characteristics and above 0.5 wt% nanoclay dramatically increased the gas transport (CO 2 , O 2 , N 2 and water vapor), thermal and mechanical properties. The results also showed that the distribution of nanoclays affected the gas barrier properties of the polymer and can be controlled by processing parameters.

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“…This could also suggest that by increasing graphene content in both polyesters, there would be greater possibility of filler-filler interaction, although in both nanocomposites elastic modulus is lower than neat polymer [22,34,35]. G 0 data for blend nanocomposite is reported, and it is compared with PET/G nanocomposites in Fig.…”

mentioning

confidence: 90%

“…Furthermore, the addition of PEN in the blend increases shear thinning behavior compared with neat PET [35,36].…”

mentioning

confidence: 95%

A comprehensive study on morphological and rheological behavior of poly(ethylene terephthalate) and poly(ethylene‐2,6‐naphthalene) nanocomposite blends in presence of graphene

Ghadami

Ehsani

Khonakdar

2016

Vinyl Additive Technology

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This study is concerned with morphological and rheological behavior of several systems based on poly(ethylene terephthalate) (PET), poly(ethylene-2,6-naphthalene) (PEN), PET/PEN blend, and their graphene-filled nanocomposites. The composites were prepared by using a melt-mixing method and analyzed by scanning electron microscopy and transmission electron microscopy techniques. It was observed that the graphene nanosheets were almost distributed uniformly, especially in the blend matrix. The applied mixing method was easily able to disperse nanographene as well as the initial aggregates in polyester and the blend system. By performing rheological examinations, the elastic modulus, viscosity, loss curve, and relaxation spectra of the samples were fully investigated. The presence of graphene had different effects on rheological properties such as viscosity and modulus in two polyester matrices and their blends. In all nanocomposite samples, with the addition of 1 wt% graphene, the elasticity level dropped relative to that of neat polyesters. In PEN nanocomposites, the tand peak appeared with the addition of graphene. However, in PET nanocomposites, the tand peak developed at higher frequency, with a low percentage of graphene nanosheets, and became narrower at greater quantity, compared with neat PET. By addition of nanographene into the blend, the damping factor increased. The relaxation spectra, H (s), helped to better understand the viscoelastic properties in the long-time region, and it was demonstrated that the graphene sheets retarded the relaxation process of polyesters in the molten state. The results of relaxation spectra and storage modulus agreed with each other, and similar trends were observed in all the samples under examination. J.

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Morphology and properties of polymer/organoclay nanocomposites based on poly(ethylene terephthalate) and sulfopolyester blends

Cited by 16 publications

References 26 publications

Effect of an Organo-Modified Montmorillonite on the Barrier Properties of PET Nanocomposites Using a Polyester Ionomer as a Compatibilizing Agent

Effect of an Organo-Modified Montmorillonite on the Barrier Properties of PET Nanocomposites Using a Polyester Ionomer as a Compatibilizing Agent

Mechanical and barrier properties of copolyester-nanoclay composites

A comprehensive study on morphological and rheological behavior of poly(ethylene terephthalate) and poly(ethylene‐2,6‐naphthalene) nanocomposite blends in presence of graphene

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