Tailoring the properties of PP/PA6 nanostructured blends by the addition of nanosilica and compatibilizer agents

Palacios, Jordana K.; Sangroniz, Ainara; Eguiazábal, J. I.; Etxeberria, Agustín; Müller, Alejandro J.

doi:10.1016/j.eurpolymj.2016.11.010

Cited by 39 publications

(24 citation statements)

References 66 publications

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“…Incorporation of the compatibilization agent into a polymer blend decreases the interfacial tension between the dispersed phase and the matrix by decreasing the dispersed particle size, increasing the interfacial area, and improving the adhesion . Furthermore, compatibilization agents also suppress particle coalescence and improve stress transfer from the dispersed phase to the matrix . Harada et al .…”

Section: Introductionmentioning

confidence: 99%

Rheological behavior and morphological and interfacial properties of PLA/TPE blends

Bernardes

Luiz

Santana

et al. 2019

J of Applied Polymer Sci

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Rheological and interfacial tension data were employed to predict the morphology and thermal and mechanical properties of noncompatibilized and compatibilized poly(lactic acid) (PLA)/thermoplastic elastomer (TPE) blends. PLA was melt blended with thermoplastic polyurethane (TPU) and ethylene elastomer (EE) and compatibilized by ethylene-butyl acrylate-glycidyl methacrylate (EBG) in an internal mixer chamber. Both TPU and EE TPEs have higher viscosities than PLA, and the interfacial properties evaluated have revealed better adhesion between domains of PLA-TPU. The efficiency of the compatibilizer agent EBG depended on the TPE type inferred by modifications in the scanning electron microscopy images of PLA/TPE blends and by the Izod impact strength (improved by 23%). The EBG was more effective in the PLA/TPU blend. The TPEs and EBG did not affect the PLA thermal stability, and no thermal event was observed in the usual PLA extrusion and injection temperature range.

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Section: Introductionmentioning

confidence: 99%

Rheological behavior and morphological and interfacial properties of PLA/TPE blends

Bernardes

Luiz

Santana

et al. 2019

J of Applied Polymer Sci

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“…Obviously, a considerable increase in the impact strength of blends (from 19.7 to 47.2 kJ/m 2 ) with increasing PP‐ g ‐MA content may confirm an affective compatibilization in the blends. It was previously stated that utilizing compatibilizer in incompatible polymeric blends leads to a lower interfacial tension and formation of smaller droplets of the dispersed phase improving the efficiency of stress transfer through phases …”

Section: Resultsmentioning

confidence: 99%

Effect of compatibilizer concentration on dynamic rheological behavior and morphology of thermoplastic starch/polypropylene blends

Raee

Avid

Kaffashi

2019

J of Applied Polymer Sci

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The reactive compatibilization of blends consisting polypropylene (PP) and thermoplastic starch (TPS) (70/30) with different portions of PP‐grafted maleic anhydride (PP‐g‐MA) is carried out by melt mixing. The esterification reaction between the starch hydroxyl and the PP‐g‐MA groups proved by the FTIR leads to a compatibility improvement. The dynamic rheological properties, morphology, elongation at break, and the impact strength of the blends were studied. The SEM images show that increasing the compatibilizer concentration reduces the dispersed TPS droplet size. The generalized Zener model states that an elastic interface is established (minimum α value) and enables us to predict the dynamic rheological properties of our blends in a longer frequency range to where the current experimental limitation exists. The modified Cross model is implemented to confirm better adhesion between phases when 20 wt % PP‐g‐MA is used (minimum ac value). The increase in the dynamic viscoelastic moduli at concentrations up to 20 wt % and the observed plateau at the elongation at break point at this concentration confirmed that this concentration is the optimum for the maximum stress transfer. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48742.

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“…It was shown through transmission electron microscopy that in the ternary polypropylene/polyamide 6/layered silicate nanocomposites clay platelets preferentially align themselves along the PP/PA6 interface. This observation has been reported and explained by other researchers for this system, and similar systems as well . This means the total surface area of PP/PA6 interface is reduced, as a result of the clay incorporation.…”

Section: Resultsmentioning

confidence: 58%

Crystallization and polymorphism in polypropylene/polyamide 6/layered silicate ternary nanocomposites

Motamedi

Bagheri

2018

Polymer Crystallization

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polypropylene (PP)/polyamide 6 (PA6)/layered silicate nanocomposites have a great capacity for combining the advantages of a low‐cost commodity matrix with those of an engineering thermoplastic reinforced with a nanometric filler. Although the morphology and mechanical properties of these systems are well studied, the amount of knowledge available on their crystallization behavior is scarce. This study is focused on how composition, processing procedure, and crystallization method affect the phase structure in both polypropylene and polyamide 6 in the ternary PP/PA6/layered silicate nanocomposites. Several variations of the 2 polymers, their blends, and their composites were studied using differential scanning calorimetry, X‐ray diffraction, and scanning electron microscopy. It was observed that the α/β/γ phase ratio in PP and α/γ ratio in PA6 are strongly affected by the presence of both layered silicate and compatibilizer, as well as the method of solidification. In addition, PA6 was observed to be a more effective nucleating agent for PP, compared with layered silicate.

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Tailoring the properties of PP/PA6 nanostructured blends by the addition of nanosilica and compatibilizer agents

Cited by 39 publications

References 66 publications

Rheological behavior and morphological and interfacial properties of PLA/TPE blends

Rheological behavior and morphological and interfacial properties of PLA/TPE blends

Effect of compatibilizer concentration on dynamic rheological behavior and morphology of thermoplastic starch/polypropylene blends

Crystallization and polymorphism in polypropylene/polyamide 6/layered silicate ternary nanocomposites

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