Study of the Nonisothermal Crystallization Kinetics and Melting Behaviors of Polypropylene Reinforced with Single-Walled Carbon Nanotubes Nanocomposite

Fereidoon, Abdolhossein; Ahangari, Morteza Ghorbanzadeh; Saedodin, Seyfolah

doi:10.1080/00222340802561516

Cited by 14 publications

(14 citation statements)

References 40 publications

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“…Therefore, research on this topic is constantly being conducted. The current nanofillers include graphite, single and multi‐walled carbon nanotubes (SWCNTs and MWCNTs), and graphene oxide (GnO) . Amino‐functionalized MWCNTs, in particular, have improved the fracture toughness and strain energy as well as flexural strength and stiffness of the base polymer …”

Section: Introductionmentioning

confidence: 99%

“…The related published work on crystallization deals with i ‐PP‐CNT, i ‐PP‐montmorillonite and i ‐PP‐calcium carbonate, i ‐PP‐exfoliated graphite, and i ‐PP‐GnP nanocomposites . We focus, as summarized above, on nucleating an agent‐free i ‐PP‐GnP nanocomposite.…”

Section: Introductionmentioning

confidence: 99%

“…First, the above studies investigated quiescent (without application of flow) crystallization kinetics using the Caze‐Chuah, Jeziorny, Ozawa, Mo, and Seo‐Kim models (as appropriate) . However, these models are empirical, not mechanistic.…”

Section: Introductionmentioning

confidence: 99%

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Non‐isothermal crystallization of Ziegler Natta i‐PP‐graphene nanocomposite: DSC and new model prediction

et al. 2020

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Crystallization occurs in processing i-PP-GnP nanocomposites, and these nanocomposites have the potential to replace traditional fillers and be used to fabricate advanced materials and technology. Therefore, this subject was comprehensively investigated by applying a recent crystallization model, non-isothermal DSC experiments, Raman spectroscopy, and WAXRD. The multi-layer GnPinduced nucleation and the crystal growth rates were modelled. The overall modelling effort generated new insights, results, and explanations. This study confirmed and elucidated, or refuted several published conclusions. It has also been reported that the present model can pursue differences in catalyst-mediated i-PP backbone defects (stereo and regio) by simulating the relative crystallization profile and determining the crystallization kinetic triplet (n, k o , and E a ). The multiple roles played by GnP were underscored, which exceed what the related literature currently reports. The Raman and XRD work revealed the interaction between GnP and i-PP. The shear-induced dispersion of GnP that occurs during extrusion significantly affected i-PP crystal size distribution. The present approach can also assess the effects of catalyst type and structure, and backbone defect types and their distribution on the non-isothermal crystallization of, in general, polyolefin blends and nanocomposites.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Non‐isothermal crystallization of Ziegler Natta i‐PP‐graphene nanocomposite: DSC and new model prediction

et al. 2020

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“…The published nonisothermal crystallization studies relate to i-PP with and without nucleating agents [7][8][9][10] and i-PP/inorganic ller micro-and nanocomposites. [11][12][13][14] Here, the crystallization kinetics was investigated using Caze-Chuah, Jeziorny, Ozawa, Mo, and Seo-Kim models (as appropriate). [7][8][9][10][11][12][13][14] However, the following can be commented regarding these models.…”

Section: Introductionmentioning

confidence: 99%

Crystallization and melting behavior of i-PP: a perspective from Flory's thermodynamic equilibrium theory and DSC experiment

et al. 2017

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“…To expand the utility of iPP with the optimal property enhancement, a great number of CNTfilled iPP nanocomposites have been reported recently. Because the physical and mechanical properties of CNTfilled iPP nanocomposites are dependent of the crystallization behavior and morphology of iPP, lots of researches reported the crystallization, physical and mechanical properties of CNT-filled iPP nanocomposites [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Influence of different β-nucleating agent on crystallization behavior, morphology, and melting characteristic of multiwalled carbon nanotube-filled isotactic polypropylene nanocomposites

et al. 2014

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To obtain isotactic polypropylene (iPP) nanocomposites with high b-crystal content, TMB5, calcium pimelate and calcium pimelate supported on the surface of nano-CaCO 3 were used as b-nucleating agent and MWCNT filled b-nucleated iPP nanocomposites were prepared. The effect of different b-nucleating agent and MWCNT on the crystallization behavior and morphology, melting characteristic and b-crystal content of b-nucleated iPP nanocomposites were investigated by DSC, XRD and POM. The results indicated that addition of MWCNT increased the crystallization temperature of iPP and MWCNT filled iPP nanocomposites mainly formed a-crystal. The b-nucleating agent can induce the formation of b-crystal in MWCNT filled iPP nanocomposites. The b-nucleating ability and b-crystal content in MWCNT filled b-nucleated iPP nanocomposites decreased with increasing MWCNT content and increased with increasing b-nucleating agent content due to the nucleation competition between MWCNT and b-nucleating agents. It is found that the calcium pimelate supported on the surface of inorganic particles as b-nucleating agent has stronger heterogeneous b-nucleation than calcium pimelate and TMB5. The MWCNT filled iPP nanocomposites with high b-crystal content can be obtained by supported b-nucleating agent. POLYM. COMPOS., 36:635-643, 2015.

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Study of the Nonisothermal Crystallization Kinetics and Melting Behaviors of Polypropylene Reinforced with Single-Walled Carbon Nanotubes Nanocomposite

Cited by 14 publications

References 40 publications

Non‐isothermal crystallization of Ziegler Natta i‐PP‐graphene nanocomposite: DSC and new model prediction

Non‐isothermal crystallization of Ziegler Natta i‐PP‐graphene nanocomposite: DSC and new model prediction

Crystallization and melting behavior of i-PP: a perspective from Flory's thermodynamic equilibrium theory and DSC experiment

Influence of different β-nucleating agent on crystallization behavior, morphology, and melting characteristic of multiwalled carbon nanotube-filled isotactic polypropylene nanocomposites

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