The Influence of NBR-g-GMA Compatibilizer on the Morphology and Mechanical Properties of Poly (ethylene terephthalate)/Polycarbonate/NBR Ternary Blends

Jazani, Omid Moini; Ahmad, A.L.; Peymanfar, Mohammad Reza; Saeb, Mohammad Reza; Talaei, Alireza; Bahadori, Behnoosh

doi:10.1080/03602559.2013.763349

Cited by 18 publications

(9 citation statements)

References 18 publications

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“…Whether this elongation of the minor phase takes place depends on the capillary number . Since polymer blends are almost always immiscible (with few exceptions), the use of a proper compatibilizer, for instance, a block or graft copolymer, with an affinity toward both constituents has shown to be very effective for modifying blend properties …”

Section: Introductionmentioning

confidence: 99%

“…Compatibilizer molecules, in general, are assumed to be inhomogeneously distributed across the interface. The molecular nature of the compatibilizer, that is, chain length and number of functional units per chain, determines the final particle size (or characteristic size of the phases) and, subsequently, the degree of change in morphological and mechanical characteristics . Overall, a desired level of interfacial adhesion is considered to be present when the compatibilizer provides sufficient molecular entanglement and penetration into the interface of each phase .…”

Section: Introductionmentioning

confidence: 99%

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Looking back to interfacial tension prediction in the compatibilized polymer blends: Discrepancies between theories and experiments

Asl

Saeb

Jafari

et al. 2018

J of Applied Polymer Sci

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Prediction of interfacial tension of compatibilized polymer blends is a challenging open problem, where experiments and theories hardly support each other. In this work, constitutive models proposed for quantifying the interfacial tension of compatibilized polymer blends were revisited and their limitations/capabilities were discussed. In view of available data in the literature, which could provide with possibility of comparison between interfacial tension values obtained in this work and those published before, high‐density polyethylene (HDPE)/polyamide‐6 and HDPE/polyethylene‐co‐vinyl alcohol pairs comprising varying amounts of HDPE‐g‐maleic anhydride compatibilizer precursor were prepared for obtaining model parameters. The inability of theories in monitoring the interfacial tension was accordingly uncovered. However, outcomes from both theoretical and experimental data provided some insights for elucidating the interplay between interfacial tension and rheological characteristics of the studied compatibilized blends. It was also attempted to uncover the relationships between particle size, particle size distribution, and rheological properties of blends compatibilized with different amounts of HDPE‐g‐maleic anhydride precursor. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46144.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Looking back to interfacial tension prediction in the compatibilized polymer blends: Discrepancies between theories and experiments

Asl

Saeb

Jafari

et al. 2018

J of Applied Polymer Sci

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“…Mechanical properties of ternary blends were the subject of several publications[36,39–43]. Figure 3 shows the results of dynamic thermal‐mechanical properties of neat PP and samples C 1 ‐C 4 .…”

Section: Resultsmentioning

confidence: 99%

Effect of Poly(Styrene‐Ethylene‐Butylene‐Styrene) Block Copolymer on Thermomechanical Properties and Morphology of Polypropylene/Poly(Styrene‐Ethylene‐Butylene‐Styrene)/Polycarbonate Ternary Blends

Soltanolkottabi

Jazani

Shokoohi³

2020

Vinyl Additive Technology

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Ternary polymer blends based on polypropylene (PP)/poly(styrene‐ethylene‐butylene‐styrene) (SEBS)/polycarbonate (PC) compatibilized through maleic anhydride‐grafted SEBS were prepared using a twin‐screw extruder. Four different compositions in which the weight ratio of SEBS constituent was varied from 5% up to 30% were formulated in order to assess the relation between morphology and mechanical properties and SEBS/SEBS‐g‐MA weight ratio was set to be 1. Samples were characterized using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA), and mechanical properties measurements. Microscopic observation confirmed the formation of core‐shell droplets dispersed in the PP matrix in which the rubbery phase encapsulated PC droplets. Individual fibril‐like PC rods were also observed beside the encapsulations. Accordingly, impact resistance progressively improved (28.57‐fold at 30 wt% of SEBS) compared to neat PP while only 6.8% decrease was detected in the yield strength of this sample. SEM micrographs also showed that the population and size of the individual PC particles are higher in the samples containing 5 and 10 wt% of SEBS compared to those containing 20 and 30 wt%, which endow the former with higher chance of heterogeneous nucleation and correspondingly higher crystallization temperature confirmed by DSC results. Introduction of SEBS rubber phase intensified the elastic behavior of the blends supported by DMTA thermograms.

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“…Nowadays, new grades of polymeric materials with engineering properties are not essentially the outcome from petrochemical units; in turn, they are the product of processing of available polymers giving a variety of morphologies . Poor properties of immiscible polymer blends are the consequence brought about by inadequate interfacial adhesion—what narrows their application . Compatibilization of polymer blends appeared as the most convenient route to overcome such weaknesses .…”

Section: Introductionmentioning

confidence: 99%

A probe into the status quo of interfacial adhesion in the compatibilized ternary blends with core/shell droplets: Selective versus dictated compatibilization

Anaraki

Saeb

Rastin

et al. 2017

J of Applied Polymer Sci

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A simple approach was applied to probe into the situation of interfacial adhesion in the compatibilized ternary polymer blends with core/shell morphology. The performance of compatibilization was discussed in terms of thermal, rheological, and mechanical properties analyses for blends prepared through different mixing strategies for which maleic anhydride‐grafted high‐density polyethylene (HDPE‐g‐MAH) could be localized at the interface of HDPE/poly(ethylene‐co‐vinyl alcohol) copolymer (EVOH) or HDPE/polyamide 6 (PA‐6) in their ternary blends. Two mixing strategies, one simultaneously (one‐step or selective) and two sequentially (two‐step or dictated), were performed, compared, and discussed. It was found that mixing policy (dictated or selective) significantly changes the interfacial adhesion, as signaled by variations in rheological and thermal properties. In the case of mechanical properties, facilitation of stress transfer across the matrix/shell/core interfaces was detected by calculation of semi‐experimental models' coefficients. It was found that one‐step mixing or selective localization of HDPE‐g‐MAH helps in accumulation of more compatibilizer molecules at the interface HDPE/EVOH or EVOH/PA‐6. By contrast, addition of compatibilizer to minor phase (masterbatch of EVOH and PA‐6) or to HDPE matrix alone in case of two‐step blending causes imperfect stress transfer. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45503.

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The Influence of NBR-g-GMA Compatibilizer on the Morphology and Mechanical Properties of Poly (ethylene terephthalate)/Polycarbonate/NBR Ternary Blends

Cited by 18 publications

References 18 publications

Looking back to interfacial tension prediction in the compatibilized polymer blends: Discrepancies between theories and experiments

Looking back to interfacial tension prediction in the compatibilized polymer blends: Discrepancies between theories and experiments

Effect of Poly(Styrene‐Ethylene‐Butylene‐Styrene) Block Copolymer on Thermomechanical Properties and Morphology of Polypropylene/Poly(Styrene‐Ethylene‐Butylene‐Styrene)/Polycarbonate Ternary Blends

A probe into the status quo of interfacial adhesion in the compatibilized ternary blends with core/shell droplets: Selective versus dictated compatibilization

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