Crystallisation behaviour and morphological characteristics of poly(propylene)/multi-walled carbon nanotube nanocomposites

Kaganj, A. B.; Rashidi, Alimorad; Arasteh, Rouhollah; Taghipoor, Sohrab

doi:10.1080/17458080802688427

Cited by 23 publications

(16 citation statements)

References 37 publications

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“…The CNT/PP composites show a peak of crystallinity of 59% at a CNT concentration of 0.1 vol % (Figure b). This loading is much lower than reported by Kaganj et al as they reported a peak at 1% CNT loading. One reason for the discrepancy would be the different processing technique, as Kaganj et al used melt mixing, while in this project, solution‐based MSMP method is used.…”

Section: Resultscontrasting

confidence: 57%

“…This loading is much lower than reported by Kaganj et al as they reported a peak at 1% CNT loading. One reason for the discrepancy would be the different processing technique, as Kaganj et al used melt mixing, while in this project, solution‐based MSMP method is used. Similarly for the CuNW‐based composite, there is a crystallinity peak on the CNT/PP curve as well.…”

Section: Resultscontrasting

confidence: 57%

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Comparative study on electrical properties of copper nanowire/polypropylene and carbon nanotube/polypropylene composites

Yan

Sundararaj

2014

AIChE Journal

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Nanocomposites using copper nanowires (CuNWs) or carbon nanotubes (CNTs) as fillers with polypropylene (PP) as matrix were prepared by miscible solution mixing and precipitation method. Comparative studies on electrical conductivity and electromagnetic interference shielding properties were reported. On the conductivity curve, a plateau was found for both CuNW/PP composite and CNT/PP composite. The plateaus are located at a different concentration range for each composite type: for CuNW/PP composite, it is between 0.8 and 1.7 vol %, while for CNT/PP composite the plateau occurs in a narrower range between 0.4 and 0.6 vol %. The shielding effectiveness (SE) increases with increased concentration of fillers. CNT/PP composite has higher SE at concentrations less than 2 vol %; the two curves cross near 10 dB at this point and at concentrations higher than 2 vol %, CuNW/PP composite has higher SE. V C 2014 American Institute of Chemical Engineers AIChE J, 61: [296][297][298][299][300][301][302][303] 2015

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Section: Resultscontrasting

confidence: 57%

Section: Resultscontrasting

confidence: 57%

Comparative study on electrical properties of copper nanowire/polypropylene and carbon nanotube/polypropylene composites

Yan

Sundararaj

2014

AIChE Journal

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“…On the other hand, as loading of nanotubes increases, CNTs started to block the mobilization of PEK chain and prevent segments from obtaining order alignment of crystal lattice. Therefore, the nucleation process is accelerated slightly . This ability of carbon nanotubes to crystallize PEK along with high stiffness of nanotubes is reflected in enhanced thermo mechanical properties of composites.…”

Section: Resultsmentioning

confidence: 99%

Detailed dynamic mechanical analysis of thermomechanically stable melt‐processed PEK–MWCNT nanocomposites

et al. 2016

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This article reports the detailed study of dynamic mechanical properties of multiwalled carbon nanotubes/poly(ether ketone) nanocomposites prepared by melt blending. The dynamic mechanical characterisitic parameters such as storage modulus (E′), loss modulus (E″) and damping factor (tan δ) were explored in detail to investigate the adhesion factor (A), strength factor (B), efficiency factor (C), and entanglement density (N). Adhesion factor, which is inversely related to the degree of interaction between nanotubes and matrix, decreased with increase in MWCNT loading. Strength factor (B) which is a direct measure of interaction between MWCNTs and PEK increased with increase in MWCNT loading. The effect of nanotubes on moduli of composites is calculated in terms of coefficient of reinforcement (C factor). Lower is the value of coefficient (C) higher will be the effectiveness of reinforcement on moduli of composites. It decreased from value of 1 at 1 wt% MWCNTs loading in PEK to 0.67 at 5 wt% MWCNTs loading which point towards increased effectiveness of MWCNTs at 5 wt% loading for excellent properties. To compliment these findings, entanglement density (N) was also calculated. Furthermore, Cole–Cole analysis was carried out to demonstrate the compatibility of both the components in composite system. POLYM. COMPOS., 39:2587–2596, 2018. © 2016 Society of Plastics Engineers

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“…The ∆ W values determined after normalization of the peaks to a constant mass of the samples, which is a measure of the crystallite size distribution. The narrower the crystallite size distribution, the smaller will be ∆ W . The ∆ W of the PTT/PET fibers decreased with the increase in the PET content up to 30 wt%.…”

Section: Resultsmentioning

confidence: 99%

“…It was also found that the X c values of the PTT/PET fibers changed between the corresponding values of the pure components. The narrower the crystallite size distribution, the smaller will be W. 23 The W of the PTT/PET fibers decreased with the increase in the PET content up to 30 wt%. As a result, the increase in entanglements between the chains of PET and PTT could decrease the X c value.…”

Section: Thermal and Crystallization Propertiesmentioning

confidence: 97%

Effects of Fiber Spinning on the Morphology, Rheology, Thermal, and Mechanical Properties of Poly(trimethylene terephthalate)/Poly(ethylene terephthalate) Blends

Arasteh¹,

Naderi

Kaptan

et al. 2014

Adv Polym Technol

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The morphology, thermal behavior, rheological, and mechanical properties of poly(trimethylene terephthalate) (PTT)/poly(ethylene terephthalate) (PET) blend fibers were investigated. The scanning electron microscopy studies revealed the formation of a microfibrillar network of the PET within the PTT matrix after the fiber-spinning process. Differential scanning calorimetry results demonstrated that although the thermal characteristics of the amorphous phase were unaffected by the fiber-spinning process, the melting and crystallization behavior of the blends was altered by the elongation flow imposed during the melt spinning. The viscoelastic behavior of the PTT/PET blends was also studied by a steady shear rate and dynamic sweep rheological experiments before and after the spinning process. The induced morphology and crystallization reordering resulting from the fibrillation process are shown to have a remarkable effect on the complex viscosity profile of the PTT/PET fibers, particularly in the blend containing 30 wt% PET. The mechanical testing showed that tenacity and Young's modulus of the PTT fibers increased with the addition of PET up to 30 wt%. C

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Crystallisation behaviour and morphological characteristics of poly(propylene)/multi-walled carbon nanotube nanocomposites

Cited by 23 publications

References 37 publications

Comparative study on electrical properties of copper nanowire/polypropylene and carbon nanotube/polypropylene composites

Comparative study on electrical properties of copper nanowire/polypropylene and carbon nanotube/polypropylene composites

Detailed dynamic mechanical analysis of thermomechanically stable melt‐processed PEK–MWCNT nanocomposites

Effects of Fiber Spinning on the Morphology, Rheology, Thermal, and Mechanical Properties of Poly(trimethylene terephthalate)/Poly(ethylene terephthalate) Blends

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