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effect of phase distribution on rheological behavior of

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  • Factors Affecting Rheology of a SuspensionPharmapproach

    A formulator should have exact knowledge of the factors that affect the viscosity to enable him change the rheological behavior of suspension products. Along with the physical factors there are some chemical parameters that affect the particle interactions and thereby the effective dispersed phase fraction which in turn changes the

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  • Rheological studies on the flow behavior of two-phase

    Rheological studies on the flow behavior of two-phase solid-liquid materials Gang Lu Iowa State University Follow this and additional works at https //lib.dr.iastate.edu/rtd

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  • Rheological studies on the flow behavior of two-phase

    Rheological studies on the flow behavior of two-phase solid-liquid materials Gang Lu Iowa State University Follow this and additional works at https //lib.dr.iastate.edu/rtd

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  • Effect of molecular weight distribution on rheological

    Sep 25 2013 · In this article a series of commercial bimodal polyethylene-100 (PE100) resins were synthesized to clarify the effect of molecular weight distribution (MWD) on rheological crystallization and mechanical properties of bimodal PE. The GPC results show that the three GC100S samples with similar MWD merely differ in the ratio of low molecular weight (MW) fraction which gradually ascends

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  • Effects of processing sequence on clay dispersion phase

    Effects of processing sequence on the clay dispersion phase morphology and thermal and rheological properties of PA6‐HDPE‐clay nanocomposites are investigated in this study. It has been found that the processing sequence plays a key role in the clay dispersion and phase morphology of the PA6‐HDPE‐clay nanocomposites.

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  • Effects of Granule Size and Size Distribution on

    Jul 20 2006 · The effects of granule size and size distribution on rheological behavior of hydroxypropylated and phosphate cross‐linked potato starch (HPS) were studied by steady and dynamic viscoelasticity measurements. The rheological behavior of starch dispersions was strongly influenced by granule size and granule‐to‐granule interaction.

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  • (PDF) Effect of ionic strength on rheological behavior of

    Effect of ionic strength on rheological behavior of polymer-like cetyltrimethylammonium tosylate micellar solutions this study then was to find systematic correlations between the Our group has studied the phase and rheological behavior of flow behaviour observed and the type of counterion present. results chain length distribution

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  • RHEOLOGICAL BEHAVIOR OF CONCENTRATED ALUMINA

    behavior and to correlate the rheological (viscosity yield stress and shear rate) properties and dispersion effects of the anionic polyelectrolyte dispersant with three different rheological flow models of the α-Al2O3 aqueous suspensions at a constant high solids loading of 77 wt. ( 43 vol. ). EXPERIMENTAL Materials

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  • (PDF) Effect of ionic strength on rheological behavior of

    Effect of ionic strength on rheological behavior of polymer-like cetyltrimethylammonium tosylate micellar solutions this study then was to find systematic correlations between the Our group has studied the phase and rheological behavior of flow behaviour observed and the type of counterion present. results chain length distribution

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  • The effect of entanglements on the rheological behavior of

    We investigated the stress relaxation behavior of critical gels originating from six nearly monodisperse highly entangled polybutadiene melts of different molecular weight from 18000 to 97 000 g/mole. The polymers were vulcanized by a hydrosilation reaction which takes place nearly exclusively at the pendant 1 2-vinyl sites distributed randomly along the polybutadiene chain.

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  • Understanding Rheology of Thermoplastic Polymers

    EFFECT OF MOLECULAR STRUCTURE AND MORPHOLOGY Molecular Weight Molecular weight is the main structural parameter of polymers flow behavior at temperatures above the glass transition temperature (for an amorphous material) or the melting point (for a semi-crystalline polymer). Melt viscosity is a constant at low shear rates or frequencies.

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  • Rheological behavior of the continuous phase of foams and

    cementitious continuous phase and the surfactant might stabilize this process. Material and Methods To better understand the effect of gas dispersion on the rheological behavior of the continuous cementitious phase of mineral foams an extended study has been carried out at the Fachgebiet Werkstoffe im Bauwesen of TU Darmstadt.

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  • Rheological Behavior of Filled Polymeric Systems II. The

    An investigation was undertaken to study the influence of a bimodal size distribution of particulates on the shear viscosity primary normal stress coefficient dynamic viscosity and storage modulus of filled polymeric systems. As expected all four rheological properties of the composite systems with a bimodal size distribution of solids were reduced in comparison to the properties of the

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  • The effect of entanglements on the rheological behavior of

    We investigated the stress relaxation behavior of critical gels originating from six nearly monodisperse highly entangled polybutadiene melts of different molecular weight from 18000 to 97 000 g/mole. The polymers were vulcanized by a hydrosilation reaction which takes place nearly exclusively at the pendant 1 2-vinyl sites distributed randomly along the polybutadiene chain.

    Get Price
  • Rheological Behavior of Concentrated Bitumen in Water

    The effect of bitumen concentration and mean drop diameter and distribution on the rheological behavior of bitumen in water emulsions was investigated. Results obtained showed that the emulsion viscosity is severely affected by the type of drop size distribution. In fact emulsions with a bimodal drop diameter distribution exhibit viscosity values which were at least 1 order of magnitude lower

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  • Phase behavior and rheological properties of basil seed

    tigated through phase behavior steady shear flow and small amplitude oscillatory shear tests (SAOS). The phase behavior of WPI-BSG mixed solutions was dependent on the initial concentration of biopolymers while the effect of BSG was predomi-nant. Herschel–Bulkley model characterized the flow behavior of ternary mixtures very well.

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  • Rheological Behavior of Single–Phase Non-Newtonian

    Rheological Behavior of Single-Phase Non-Newtonian Polymer Solution in Complex Pore Geometry A Simulation Approach P. Idahosa1 G. Oluyemi2 R. Prabhu2 B. Oyeneyin2 1IDEAS Research Institute/School of Engineering Robert Gordon University Riverside East Aberdeen United Kingdom.

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  • RHEOLOGICAL BEHAVIOR OF CONCENTRATED ALUMINA

    behavior and to correlate the rheological (viscosity yield stress and shear rate) properties and dispersion effects of the anionic polyelectrolyte dispersant with three different rheological flow models of the α-Al2O3 aqueous suspensions at a constant high solids loading of 77 wt. ( 43 vol. ). EXPERIMENTAL Materials

    Get Price
  • Factors Affecting Rheology of a SuspensionPharmapproach

    A formulator should have exact knowledge of the factors that affect the viscosity to enable him change the rheological behavior of suspension products. Along with the physical factors there are some chemical parameters that affect the particle interactions and thereby the effective dispersed phase fraction which in turn changes the

    Get Price
  • Correlation between phase separation and rheological

    The effect of annealing at 180 °C on the rheological behavior of polymer modified bitumen will be discussed. Since storage modulus G ′ is sensitive to the response to the dynamics of phase structure relaxation and molecular chain motion 19 30 the G ′strain result is given in Fig. 5 obtained by dynamic strain sweep test.

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  • Phase transition behavior and electro‐rheological effect

    Kosuke Kaneko Yusuke Miwa Naotake Nakamura Electro-rheological effect and dynamic rheological properties of a blend composed of two liquid crystalline materials with different molecular weight Polymer 10.1016/j.polymer.2007.10.034 48 25 () (2007).

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  • Effects of processing sequence on clay dispersion phase

    Effects of processing sequence on the clay dispersion phase morphology and thermal and rheological properties of PA6‐HDPE‐clay nanocomposites are investigated in this study. It has been found that the processing sequence plays a key role in the clay dispersion and phase morphology of the PA6‐HDPE‐clay nanocomposites.

    Get Price
  • (PDF) Effects of microfiller on the rheological behavior

    Effects of microfiller on the rheological behavior and structure of SBS modified bitumen L M Zhou 1 T Xia 1 J H Xu 2 3 Y P Qin 1 W Q Chen 1 and J F Dai 1 3

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  • Effect of molecular weight distribution on the rheological

    Oct 17 2020 · The effect of molecular weight distribution on the Theological and mechanical properties of a series of polypropylenes is evaluated. The polypropylenes tested were produced by controlled chemical

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  • Effects of processing sequence on clay dispersion phase

    Effects of processing sequence on the clay dispersion phase morphology and thermal and rheological properties of PA6‐HDPE‐clay nanocomposites are investigated in this study. It has been found that the processing sequence plays a key role in the clay dispersion and phase morphology of the PA6‐HDPE‐clay nanocomposites.

    Get Price
  • EFFECTS OF DIFFERENT EMULSIFIERS AND REFINING TIME

    and sugar content affect their rheological characteristics (FERNANDES et al. 2013). In addition to cocoa butter emulsifier also forms one of the constituents of chocolate fat phase. In the chocolate matrix emulsifiers cover sugar particles to develop the flow in cocoa butter.

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  • Effect of Modified Starches on Rheological Properties of

    and their relation and from values of tangent of phase angle (tan δ 0 0.14−0.37). Principal component analysis revealed both similarities and differences in rheological behavior of the examined ketchup samples thickened with different modified starches. Keywords Ketchup.Modifiedstarches.Consistency. Rheologicalproperties Introduction

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  • Effect of Phase Distribution on Rheological Behavior of

    Nov 01 2014 · Three kinds of calcium aluminate cements (CaAl 2 O 4 CA) with built­in alumina­magnesia spinel (MA) were prepared.The mineral composition and microstructure characteristics were investigated by techniques of X­ray diffraction and scanning electron microscopy.Their setting time and rheological behavior were also analyzed.The resultsi ndicated that when MA phases distributed among CA

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  • Rheological behavior and stability of emulsions obtained

    In other words they modify the rheological behavior of the continuous phase and contribute to equalizing the densities of the oil and aqueous phases. 2 4 Thus the analyses of changes in the emulsion structure and rheology due to the addition of different hydrocolloids may be important for understanding their effects on stability. 2 13

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