Thermoplastic polyester elastomer nanocomposites filled with graphene: Mechanical and viscoelastic properties

Qiu, Yaxin; Wang, Jun; Wu, Defeng; Wang, Zhifeng; Zhang, Ming; Yao, Ye; Wei, Nengxin

doi:10.1016/j.compscitech.2016.07.005

Cited by 50 publications

(23 citation statements)

References 29 publications

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“…24 The crystalline polyester domain is responsible for thermal resistance and elastomeric properties, while amorphous polyether domain possesses low temperature flexibility. 25 Therefore, it represents exceptional mechanical properties with superior low temperature flexibility. For the further enlargement in HTL applications, it is essential to enhance its mechanical strength and thermal stability by the addition of nanofiller.…”

Section: Introductionmentioning

confidence: 99%

Effect of graphene oxide on the mechanical and thermal properties of graphene oxide/hytrel nanocomposites

Pandey

Tewari

Dhali

et al. 2019

Journal of Thermoplastic Composite Materials

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Polymer nanocomposites offer enhancement in thermomechanical and physicochemical properties of polymers with the presence of a little amount of nanostructured fillers such as carbon nanotubes, graphene, and layered silicates. A facile and rapid preparation of hytrel (HTL)-graphene oxide (GO) nanocomposites is done via a solution mixing method. The influence of GO content (0.1, 0.5, 1, 2, and 5 wt%) on mechanical and thermal properties of GO/HTL nanocomposites has been evaluated by using various techniques such as tensile testing, thermogravimetric analysis, differential scanning calorimetry, and dynamic mechanical analysis. The thermal stability and mechanical properties of GO/HTL nanocomposites were increased with increasing GO content. The composites have valuable improvement in tensile strength (139%) and storage modulus (72%) for HTL composite containing 5 wt% GO. The incorporation of GO into HTL polymer shows enhancement in thermal and mechanical properties due to the presence of strongest noncovalent interaction (π–π stacking) between the interface of nanocomposites. These enhanced physical properties of GO/HTL composites show its potential use in structural application.

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Section: Introductionmentioning

confidence: 99%

Effect of graphene oxide on the mechanical and thermal properties of graphene oxide/hytrel nanocomposites

Pandey

Tewari

Dhali

et al. 2019

Journal of Thermoplastic Composite Materials

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“…Mackay and co‐workers suggested an increase in free volume and confinement of polymer chains in the inter‐particle gaps as primary mechanisms yielding a reduced viscosity in their PS/spherical crosslinked PS‐nanoparticle blends 12 . Several groups have also proposed a ''ball‐bearing effect'' as the probable mechanism for the viscosity decrease, in which they suggest that a high localized shear is generated in the vicinity of the nanoparticles due to their spherical geometry, and that this high shear allows for the disentanglement of the surrounding polymer chains and easy slippage of the chains past one another 24–28 . Jain et al forwarded a theory based on the selective adsorption of polymer chains on the nanoparticle surface in PP‐silica nanocomposites 29 .…”

Section: Introductionmentioning

confidence: 99%

POSS‐inducedrheological and dielectric modification of polyethersulfone

Shankar

Kemp

Smith

et al. 2021

J of Applied Polymer Sci

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Polyhedral oligomeric silsesquioxane (POSS) nanostructured chemicals, when incorporated at low levels in thermoplastics, provide processability enhancement and viscosity reduction without compromising other bulk physical properties. POSS has been relatively unexplored in high performance polymers, and there is incomplete understanding of the mechanisms by which POSS produces flow improvements. In this study, polyethersulfone (PES) was melt‐blended with trisilanolphenyl (TSP)‐POSS and dodecaphenyl (DP)‐POSS; and rheological, dielectric spectroscopy, and scanning electron microscopy evaluations were conducted to identify structure/property/processing relationships. TSP‐POSS yielded greater processability improvements and viscosity reductions than DP‐POSS, suppressed low temperature relaxations to a larger extent, and displayed a greater degree of nanoscale dispersion in the polymer matrix. The findings are evaluated in terms of competing theories of POSS viscosity reduction.

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“…Typically, for ECPC preparation, either the solution or hot melting mixing is used to incorporate conductive nanofillers into the polymer matrix. This is followed by casing, hot melt pressing, or electrospinning [6]. The distribution, size, and geometrical parameters (e.g., aspect ratio) of the nanoparticles are crucial for reaching the percolation threshold, which is known as the critical volume content of conductive fillers at the transition of the polymer from being an insulator to being semi-conductive.…”

Section: Introductionmentioning

confidence: 99%

Electrically Conductive Electrospun Polymeric Mats for Sensing Dispersed Vegetable Oil Impurities in Wastewater

et al. 2019

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This paper addresses the preparation of electrically conductive electrospun mats on a base of styrene-isoprene-styrene copolymer (SIS) and multiwall carbon nanotubes (CNTs) and their application as active sensing elements for the detection of vegetable oil impurities dispersed within water. The most uniform mats without beads were prepared using tetrahydrofuran (THF)/dimethyl formamide (DMF) 80:20 (v/v) as the solvent and 13 wt.% of SIS. The CNT content was 10 wt.%, which had the most pronounced changes in electrical resistivity upon sorption of the oil component. The sensors were prepared by deposition of the SIS/CNT layer onto gold electrodes through electrospinning and applied for sensing of oil dispersed in water for 50, 100, and 1000 ppm.

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Thermoplastic polyester elastomer nanocomposites filled with graphene: Mechanical and viscoelastic properties

Cited by 50 publications

References 29 publications

Effect of graphene oxide on the mechanical and thermal properties of graphene oxide/hytrel nanocomposites

Effect of graphene oxide on the mechanical and thermal properties of graphene oxide/hytrel nanocomposites

POSS‐inducedrheological and dielectric modification of polyethersulfone

Electrically Conductive Electrospun Polymeric Mats for Sensing Dispersed Vegetable Oil Impurities in Wastewater

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