Rheological behaviour of nano-composites based on polyamide 6 under shear and elongational flow at high strain rates

Baldi, Francesco; Franceschini, A.; Bignotti, Fabio; Tieghi, G.; Riccò, T.

doi:10.1007/s00397-008-0315-y

Cited by 28 publications

(25 citation statements)

References 31 publications

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“…The addition of nanostructured layered silicate in nylon-6 strongly affect both rheological and 0014-3057/$ -see front matter Ó 2012 Elsevier Ltd. All rights reserved. doi:10.1016/j.eurpolymj.2012.09.024 crystallization behavior of the polymer matrix [8][9][10][11][12][13][14][15][16], making fundamental the study of the processingstructure-properties relationship of polyamide nanocomposites produced by film blowing extrusion, in order to stabilize the process and control the developed morphology.…”

Section: Introductionmentioning

confidence: 99%

Effect of biaxial drawing on morphology and properties of copolyamide nanocomposites produced by film blowing

Garofalo

Fariello

Maio

et al. 2013

European Polymer Journal

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Section: Introductionmentioning

confidence: 99%

Effect of biaxial drawing on morphology and properties of copolyamide nanocomposites produced by film blowing

Garofalo

Fariello

Maio

et al. 2013

European Polymer Journal

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“…Melt spinning used to be a typical method to evaluate the melt strength and drawability of polymer melts. Recently, more and more researchers regarded it as an alternative method for the measurements of the extensional viscosities 1, 17–20. Melt spinning is easy to use, shows excellent reproducibility, and it has a close modeling of many polymer processes like film blowing and fiber spinning.…”

Section: Introductionmentioning

confidence: 99%

“…The extensional flow of polymer melts is a common flow pattern in processing, such as entrance converging flow in die extrusion or runner injection of polymer melts from an extruder barrel, [1][2][3][4][5][6][7][8] blow molding, blowing film, sheet casting and melt spinning. It is useful to know the extensional behavior during processing of polymer melts.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, more and more researchers regarded it as an alternative method for the measurements of the extensional viscosities. 1,[17][18][19][20] Melt spinning is easy to use, shows excellent reproducibility, and it has a close modeling of many polymer processes like film blowing and fiber spinning. The relation of extensional viscosity obtained from melt spinning to the true extensional viscosity of the material is still not completely understood.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of melt spinning master‐curves of low density polyethylene

Liang

Zhong

Wang

2012

J of Applied Polymer Sci

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The extensional rheological properties of a low density polyethylene (LDPE) melt were studied by using melt spinning technique. Based on the extension properties of the LDPE melt under experimental conditions, the melt spinning master‐curves were plotted by introducing scaling factor b and the draw ratio λ. The scaling factor b shows the combination effects on the preorientation before extension, the unwrapping and orientation of molecular chains during extension. Several linear relationships between b and temperature, log b and the logarithm of extrusion flow rate v0 (log v0) have been investigated. By using the values of b and the reference curve, the extension viscosity curves with different temperature and extrusion flow rate could be calculated, thus the measurement range of melt spinning technique would be extended effectively. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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“…Polymeric melt spinning flow behavior and mechanisms have been researched deep in recent decade. Baldi et al [11] studied the rheological behavior of nanocomposites based on polyamide six, under shear and elongation flow at high strain rates. Young‐Pyo and Cox [12] investigated PET fiber melt‐spinning flow and presented a nonisothermal multifilament spinning model, which was applicable for a variety of polymer and process conditions.…”

Section: Introductionmentioning

confidence: 99%

Prediction of elongation viscosity of polymer melts

Liang

Zhong

2010

Polymer Engineering & Sci

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Melt extension flow is a common flow pattern during polymer processing, such as entrance converging flow in die extrusion or runner injection of polymer melts from an extruder barrel, blow molding, blowing film and melt spinning. Extensional viscosity is one of the important characterizations of the flow characteristics for polymer fluids. A new extension viscosity equation was established based on White‐Metzner model, Vinogradov‐Malkin viscosity equation and a new relaxation time equation in the present paper. The melt elongation viscosities of metallocene linear low‐density polyethylene (mLLDPE) and polyvinyl butyral (PVB) resins at 130°C were estimated applying this viscosity equation, and the predictions were compared with the measured data of mLLDPE and PVB resins at 130°C reported from reference. The results showed that calculations were close to the experimental data. The parameters in this equation were easy to be determined and the equation was convenient to use for estimating the extension viscosity of polymer melts. POLYM. ENG. SCI., 2010. © 2010 Society of Plastics Engineers

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Rheological behaviour of nano-composites based on polyamide 6 under shear and elongational flow at high strain rates

Cited by 28 publications

References 31 publications

Effect of biaxial drawing on morphology and properties of copolyamide nanocomposites produced by film blowing

Effect of biaxial drawing on morphology and properties of copolyamide nanocomposites produced by film blowing

Analysis of melt spinning master‐curves of low density polyethylene

Prediction of elongation viscosity of polymer melts

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