Rheological and mechanical properties of surface modified multi-walled carbon nanotube-filled PET composite

Jin, Sang Hyeon; Park, Young‐Bin; Yoon, Kwan Han

doi:10.1016/j.compscitech.2007.03.013

Cited by 150 publications

(57 citation statements)

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“…Moreover, a good knowledge of the relationship between processing conditions and properties of the nanocomposites is crucial. Most of the reported literature on nanotubes filled polymers has focussed on the quantitative [9] or qualitative [10] description of the dispersion state of nanotubes, the improvement of nanotube dispersion by polymer [11] or nanotubes [12] modifications and/or proper selection of processing parameters (e.g. extrusion rotation speed and screw design [13], shear stress [14]), also on structure [15], viscoelastic (both in solid [16] and molten [17] state), electrical (conductivity [18], resistivity [19], percolation threshold [20]), mechanical (at room [21] and high [22] temperature) or interfacial [23] properties, as well as gas permeability and thermal stability [24] of the CNT filled polymers nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Taguchi analysis of shrinkage and warpage of injection-moulded polypropylene/multiwall carbon nanotubes nanocomposites

Prashantha¹,

Soulestin²,

Lacrampe³

et al. 2009

Express Polym. Lett.

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Abstract. This paper focuses on the effect of multi-walled carbon nanotube (MWNT) addition on shrinkage and warpage properties of polypropylene (PP) injection mouldings before and after annealing. A Taguchi design of experiments has been implemented to highlight the influence and optimise processing conditions such as injection flow rate, holding pressure, back pressure and screw speed. The addition of 2 wt% of carbon nanotubes into PP significantly reduces the shrinkage and warpage of injection-moulded parts as compared to the neat PP. Skrinkage reduction up to 48% (respectively 33%) is noticed in the flow direction before (respectively after) annealing, whereas warpage reduction exceeds 55%. The sensitivity of the injection-mouldings dimensional properties to processing parameters remains roughly the same in case of neat PP and PP/MWNT nanocomposites when shrinkage is considered. It is even significantly reduced by carbon nanotubes addition when warpage is considered. Furthermore, the Taguchi method provides an efficient and effective tool to study the effects of process parameters on the warpage and shrinkage of injection moulded parts. The additive model used works well for predicting the warpage and shrinkage behaviour of PP and PP/MWNT composites.

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Section: Introductionmentioning

confidence: 99%

Taguchi analysis of shrinkage and warpage of injection-moulded polypropylene/multiwall carbon nanotubes nanocomposites

Prashantha¹,

Soulestin²,

Lacrampe³

et al. 2009

Express Polym. Lett.

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“…Indeed, a wide range of polymer matrixes has been used for the development of such nanocomposites. The PET-based composites containing functionalized MWCNT showed a large increase in the tensile strength and modulus [64]. The PET-based composites containing diamine-MWCNT exhibit maximum tensile strength and modulus increases by 3 0 and 290% at 0. and 2.0 wt.%, respectively, as compared to neat PET.…”

mentioning

confidence: 91%

“…Nanocomposites with functionalized MWCNT showed beter dispersion of nanotubes in the PET matrix due to enhanced interactions between PET chains and nanotubes in comparison with pristine MWCNT/PET and MWCNT-COOH/PET nanocomposites. In turn, Jin et al [64] used the surface-modiied MWCNT having acid groups acid-MWCNT and diamine groups diamine-MWCNT in order to improve the dispersion of MWCNTs in PET matrix. Due to van der Waals interactions, pristine MWCNT exhibited high degree of aggregation, whereas, the acid-MWCNT, which has been treated with sulfuric and nitric acids, showed a lower degree of entanglement due to shortened nanotube lengths.…”

Section: Functional Properties Of Polymer/cnp Nanocomposites Momentioning

confidence: 99%

Multifunctional Polymer Nanocomposites Based on Thermoplastic Polyesters

Paszkiewicz¹

2016

Functionalized Nanomaterials

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Polymer nanocomposites containing carbon nanoparticles have exhibited remarkable thermal, mechanical and electrical properties. This review is concerned with a narrow sector of polymer nanocomposites, namely those based on engineering polyesters, which are of great industrial interest. The various functionalization methods of modifying carbon nanotubes and graphene derivative forms to allow interacting with polymer matrices will be summarized. Moreover, the review on the processing techniques of obtaining polymer nanocomposites with the emphasis of their efect on the inal properties of the obtained material will be highlighted. The light will be also shed on the nanoiller dispersion in the polymer matrix. Finally, the opportunities and challenges in the high-performance polymer nanocomposites will be presented.Keywords: polymer nanocomposites, thermoplastic polyesters, carbon nanoparticles . IntroductionEngineering polyesters, such as poly ethylene terephthalate PET and poly butylene terephthalate P"T , constitute a group of engineering thermoplastics. However, this group is now expanded by new members of the polyester family, that is, poly trimethylene terephthalate PTT and poly ethylene-2, 6-naphthalate PEN . They combine excellent mechanical, electrical and thermal properties with very good chemical resistance and dimensional stability. Moreover, with excellent processing characteristics and high strength and rigidity, they are widely used in industrial applications. However, still at a commercial level the aforesaid properties, one can further improve through an addition of suitable modifying agents such as nanoillers. There is a wide array of organic and inorganic nanoillers © 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.© 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. some of which have been studied more thoroughly than others. "n addition of carbon nanoillers CNF such as carbon nanotubes CNT and graphene derivative forms GDF may seem particularly interesting from the point of view of their inluence on the enhancement of a wide array of material characteristics.The properties of polymer nanocomposites that can be improved due to the presence of carbon nanoparticles CNP , such as carbon nanotubes single-and multi-walled carbon nanotubes and graphene derivatives graphene, expanded graphite, graphene oxide, etc. , include tensile strength, tensile modulus, toughness, thermal properties, electrical and thermal conductivity, optical and barrier properties. However, the aforementioned properties one can obtain only w...

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“…Another indication of the functionalization is the band at 1425 cm -1 corresponding to N-H bending of secondary amide (Pompeo & Resasco, 2002). for The stretching mode of aromatic amine group is observed at 873 cm -1 and the stretching mode of C-OH is assigned at 672 cm -1 (Shen et al 2007, Jin et al 2007). …”

Section: On-line Preconcentration Systemmentioning

confidence: 99%

Evaluation of Histidine Functionalized Multiwalled Carbon Nanotubes for Improvement in the Sensitivity of Cadmium Ions Determination in Flow Analysis

Lima¹,

Oliveira²,

Ohara³

et al. 2011

Carbon Nanotubes - From Research to Applications

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Rheological and mechanical properties of surface modified multi-walled carbon nanotube-filled PET composite

Cited by 150 publications

References 15 publications

Taguchi analysis of shrinkage and warpage of injection-moulded polypropylene/multiwall carbon nanotubes nanocomposites

Taguchi analysis of shrinkage and warpage of injection-moulded polypropylene/multiwall carbon nanotubes nanocomposites

Multifunctional Polymer Nanocomposites Based on Thermoplastic Polyesters

Evaluation of Histidine Functionalized Multiwalled Carbon Nanotubes for Improvement in the Sensitivity of Cadmium Ions Determination in Flow Analysis

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