Investigation of morphology, mechanical, dynamic mechanical and thermal behaviour of blends based on ethylene vinyl acetate (EVA) and thermoplastic polyurethane (TPU)

Dutta, Joyeeta; Naskar, Kinsuk

doi:10.1039/c4ra07823c

Cited by 43 publications

(46 citation statements)

References 28 publications

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“…From Table , the effect of reactive blending on the domain size in the blends can be comprehended. Equations have been employed by many researchers to determine the domain size and thereby assess the compatibility of the system . As an outcome of the interfacial reactions during the blending process, the size of the dispersed domains continue to decrease and thereby achieving an even finer dispersion.…”

Section: Resultssupporting

confidence: 54%

“…TPUs are phase segmented structures with excellent mechanical and elastic properties and hardness and are a versatile group of TPEs. They exhibit a wide variety of properties like tensile strength (TS), resilience, and resistance to solvents and chemicals . The authors have studied a SEBS/TPU blend system previously for automotive applications, and found them to be technologically incompatible.…”

Section: Introductionmentioning

confidence: 99%

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Augmentation of performance properties of maleated SEBS/TPU blends through reactive blending

Anagha

Naskar

2019

J of Applied Polymer Sci

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Meticulous investigation of reactive blending of maleic anhydride grafted styrene–ethylene–butylene–styrene (SEBS‐g‐MA) and thermoplastic polyurethane (TPU) is carried out to achieve systems with controllable morphology and superior mechanical properties. Two types of SEBS‐g‐MA (abbreviated as M1, M2) with different maleic anhydride content were used to separately blend with TPU. Formation of imide group from the interaction of isocyanate and maleic anhydride predicted from the plausible reaction scheme was confirmed through Fourier transform infrared spectroscopy. High tensile strength of the blends along with appreciable elongation at break was witnessed. Morphology analyses using scanning electron microscopy and atomic force microscopy exposed a vivid and homogenous droplet morphology in all the blends presumably due to in situ formation of a suitable copolymer at the interface. Differential scanning calorimetry was used to pursue the thermal characteristics of the blends. Melt‐rheological behavior of the blends was examined using a rubber process analyzer. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48727.

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Section: Resultssupporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Augmentation of performance properties of maleated SEBS/TPU blends through reactive blending

Anagha

Naskar

2019

J of Applied Polymer Sci

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“…Thermoplastic polyesterurethanes (TPUs) are a class of polymers of increasing interest and their properties strictly depend on chemical details of the polymeric chain and the resulting microstructure. TPUs are randomly coupled multi‐block copolymers of alternating soft (polyester macro‐diol) and hard (isocyanate‐based) segments.…”

Section: Introductionmentioning

confidence: 99%

Constraints and thermal expansion of the free volume in a micro-phase separated poly(ester-adipate)urethane

Consolati

Nichetti²,

Quasso

2016

J. Polym. Sci. Part B: Polym. Phys.

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The free volume behavior of a thermoplastic polyesterurethane (TPU) versus temperature is investigated by positron annihilation lifetime spectroscopy and dilatometry. A discrepancy with the free volume predicted by the lattice-hole theory is found. The agreement is restored by assuming anisotropic expansion of the free volume holes, which in fact results in expansion mainly in two dimensions. This finding is perfectly compatible with a polymer structure based on rheological, thermal, and TEM data which envisage TPU as formed by short soft segments limited in their movements by chain connectivity and confined by physical crosslinks due to the hard segments

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“…The neat blend shows single tan δ peaks at −24°C with a shoulder peak at −43°C corresponding to T g 's of EMA and EOC phase, respectively. Single tan δ peaks do not suggest the blend miscibility, but it can be said that the blend is technologically compactible . T g obtained from tan δ is much higher than observed from calorimetry analysis.…”

Section: Resultsmentioning

confidence: 73%

Synergistic effect of double percolated co‐supportive MWCNT‐CB conductive network for high‐performance EMI shielding application

Ravindren

Mondal

Nath

et al. 2019

Polymers for Advanced Techs

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The recent development in telecommunication technology has led electromagnetic interference (EMI) to a serious threat to both electronic devices and living beings. In this work, we designed a highly efficient EMI shielding material by taking advantage of both carbonaceous hybrid filler and double percolation phenomenon. Here, a flexible, lightweight microwave absorbing conductive polymer composite was fabricated by employing poly (ethylene‐co‐methyl acrylate) and ethylene octene copolymer (EMA/EOC) binary blend as the matrix and multiwall carbon nanotube carbon black (MWCNT/CB) hybrid filler as the conductive moiety. We investigated the effect of MWCNT content in the hybrid composite on mechanical, thermomechanical, electrical, and shielding efficiency. A total EMI shielding efficiency of −37.4 dB in the X band region was attained with 20 wt% hybrid filler containing 50 wt% MWCNT along with promising mechanical properties.

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Investigation of morphology, mechanical, dynamic mechanical and thermal behaviour of blends based on ethylene vinyl acetate (EVA) and thermoplastic polyurethane (TPU)

Abstract: Novel blends based on EVA (ethylene vinyl acetate) and TPU (thermoplastic polyurethane) have been developed and characterized which may find potential applications in the cable and footwear industries.

Cited by 43 publications

References 28 publications

Augmentation of performance properties of maleated SEBS/TPU blends through reactive blending

Augmentation of performance properties of maleated SEBS/TPU blends through reactive blending

Constraints and thermal expansion of the free volume in a micro-phase separated poly(ester-adipate)urethane

Synergistic effect of double percolated co‐supportive MWCNT‐CB conductive network for high‐performance EMI shielding application

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