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Banbury Mixer

The Experts below are selected from a list of 174 Experts worldwide ranked by ideXlab platform

J. A. Walberer – 1st expert on this subject based on the ideXlab platform

  • Rheology and structuring in organo-ceramic composites
    Composites Part A-applied Science and Manufacturing, 2001
    Co-Authors: A J Mchugh, J. A. Walberer

    Abstract:

    Abstract The processing–structure–property relationships for calcium aluminate based organo-ceramic composites are reviewed. Processing behavior was measured with a torque-outfitted Banbury Mixer, structuring behavior was analyzed with electron microscopy, and mechanical properties were determined using flexural strength measurements. These results are discussed for composites composed of either a polyvinyl alcohol or phenol formaldehyde resin organic phase. The two materials have different processing behaviors, driven by different paste formation mechanisms, but are observed to have similar microstructure and mechanical properties. The rheology of model, non-calcium aluminate based composites was studied using a lubricated squeezing flow rheometer. The relaxation modulus following a step strain was measured for reactive systems that stiffened due to a crosslinking polymer phase or a polymerizing polymer phase and compared to that measured for non-reactive polydimethyl siloxane (PDMS) systems with filler fractions from 0 to 65% by volume and 65% filled PDMS of differing molecular weights. Comparison of the normalized relaxation moduli of the model reactive and non-reactive materials suggests similarities between the effect of filler amount and crosslinking amount and between the combined effects of molecular weight and filler amount and the degree of polymerization.

  • Rheology and structuring in organo-ceramic composites
    Composites – Part A: Applied Science and Manufacturing, 2001
    Co-Authors: A J Mchugh, J. A. Walberer

    Abstract:

    The processing-structure-property relationships for calcium aluminate based organo-ceramic composites are reviewed. Processing behavior was measured with a torque-outfitted Banbury Mixer, structuring behavior was analyzed with electron microscopy, and mechanical properties were determined using flexural strength measurements. These results are discussed for composites composed of either a polyvinyl alcohol or phenol formaldehyde resin organic phase. The two materials have different processing behaviors, driven by different paste formation mechanisms, but are observed to have similar microstructure and mechanical properties. The rheology of model, non-calcium aluminate based composites was studied using a lubricated squeezing flow rheometer. The relaxation modulus following a step strain was measured for reactive systems that stiffened due to a crosslinking polymer phase or a polymerizing polymer phase and compared to that measured for non-reactive polydimethyl siloxane (PDMS) systems with filler fractions from 0 to 65% by volume and 65% filled PDMS of differing molecular weights. Comparison of the normalized relaxation moduli of the model reactive and non-reactive materials suggests similarities between the effect of filler amount and crosslinking amount and between the combined effects of molecular weight and filler amount and the degree of polymerization. © 2001 Elsevier Science Ltd.

  • A comparison of the rheology of reactive filled systems using lubricated squeezing flow
    Journal of Rheology, 2000
    Co-Authors: J. A. Walberer, A J Mchugh

    Abstract:

    Lubricated squeezing flow rheometry has been used to study the rheological behavior of highly filled polymer composites that stiffen as they are processed. Reactive systems consisting of a crosslinking polymer phase or a polymerizing polymer phase filled with glass beads up to 65% by volume were prepared in a Banbury Mixer and compared with nonreactive systems of up to 65% filled polydimethylsiloxanes (PDMS) of differing molecular weights. The torque time profile from Banbury mixing shows a linear rise in torque with time for the crosslinking system, while the polymerizing system shows a linear followed by power law rise in torque with time. The relaxation modulus following a step strain was measured for the reactive systems at various mixing times. Comparisons of the normalized relaxation moduli of the reactive and nonreactive materials suggest similarities between the effect of filler amount and crosslinking amount and between the combined effects of molecular weight and filler amount and the degree of …

A J Mchugh – 2nd expert on this subject based on the ideXlab platform

  • Rheology and structuring in organo-ceramic composites
    Composites Part A-applied Science and Manufacturing, 2001
    Co-Authors: A J Mchugh, J. A. Walberer

    Abstract:

    Abstract The processing–structure–property relationships for calcium aluminate based organo-ceramic composites are reviewed. Processing behavior was measured with a torque-outfitted Banbury Mixer, structuring behavior was analyzed with electron microscopy, and mechanical properties were determined using flexural strength measurements. These results are discussed for composites composed of either a polyvinyl alcohol or phenol formaldehyde resin organic phase. The two materials have different processing behaviors, driven by different paste formation mechanisms, but are observed to have similar microstructure and mechanical properties. The rheology of model, non-calcium aluminate based composites was studied using a lubricated squeezing flow rheometer. The relaxation modulus following a step strain was measured for reactive systems that stiffened due to a crosslinking polymer phase or a polymerizing polymer phase and compared to that measured for non-reactive polydimethyl siloxane (PDMS) systems with filler fractions from 0 to 65% by volume and 65% filled PDMS of differing molecular weights. Comparison of the normalized relaxation moduli of the model reactive and non-reactive materials suggests similarities between the effect of filler amount and crosslinking amount and between the combined effects of molecular weight and filler amount and the degree of polymerization.

  • Rheology and structuring in organo-ceramic composites
    Composites – Part A: Applied Science and Manufacturing, 2001
    Co-Authors: A J Mchugh, J. A. Walberer

    Abstract:

    The processing-structure-property relationships for calcium aluminate based organo-ceramic composites are reviewed. Processing behavior was measured with a torque-outfitted Banbury Mixer, structuring behavior was analyzed with electron microscopy, and mechanical properties were determined using flexural strength measurements. These results are discussed for composites composed of either a polyvinyl alcohol or phenol formaldehyde resin organic phase. The two materials have different processing behaviors, driven by different paste formation mechanisms, but are observed to have similar microstructure and mechanical properties. The rheology of model, non-calcium aluminate based composites was studied using a lubricated squeezing flow rheometer. The relaxation modulus following a step strain was measured for reactive systems that stiffened due to a crosslinking polymer phase or a polymerizing polymer phase and compared to that measured for non-reactive polydimethyl siloxane (PDMS) systems with filler fractions from 0 to 65% by volume and 65% filled PDMS of differing molecular weights. Comparison of the normalized relaxation moduli of the model reactive and non-reactive materials suggests similarities between the effect of filler amount and crosslinking amount and between the combined effects of molecular weight and filler amount and the degree of polymerization. © 2001 Elsevier Science Ltd.

  • A comparison of the rheology of reactive filled systems using lubricated squeezing flow
    Journal of Rheology, 2000
    Co-Authors: J. A. Walberer, A J Mchugh

    Abstract:

    Lubricated squeezing flow rheometry has been used to study the rheological behavior of highly filled polymer composites that stiffen as they are processed. Reactive systems consisting of a crosslinking polymer phase or a polymerizing polymer phase filled with glass beads up to 65% by volume were prepared in a Banbury Mixer and compared with nonreactive systems of up to 65% filled polydimethylsiloxanes (PDMS) of differing molecular weights. The torque time profile from Banbury mixing shows a linear rise in torque with time for the crosslinking system, while the polymerizing system shows a linear followed by power law rise in torque with time. The relaxation modulus following a step strain was measured for the reactive systems at various mixing times. Comparisons of the normalized relaxation moduli of the reactive and nonreactive materials suggest similarities between the effect of filler amount and crosslinking amount and between the combined effects of molecular weight and filler amount and the degree of …

Marcoa De Paoli – 3rd expert on this subject based on the ideXlab platform

  • reactive processing of polyaniline in a Banbury Mixer
    Synthetic Metals, 1999
    Co-Authors: Scandiucci P De Freitas, Marcoa De Paoli

    Abstract:

    Polyaniline (PAni) was doped with several concentrations of dodecylbenzenesulfonic acid (DBSA) and processed in a double screw conrotatory Banbury type Mixer coupled to a torque reomether. With the conditions studied, some samples were cured and reached a high torque. Depending on the hardening of PAni(DBSA) it was possible to make films in a roll mill. Polymer was characterized by DSC analysis were Tg transitions can be seen in the curves for thermally processed conductive PAni. Conductivity values were independent of DBSA concentrations.