Shear Viscosity of Particle Filled and Rubber Modified Thermoplastics at Very Low Shear Stresses
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- ARAKI Takumi
- Institute of Polymer Engineering, University of Akron
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- WHITE James L.
- Institute of Polymer Engineering, University of Akron
書誌事項
- タイトル別名
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- Shear Viscosity of Particle Filled and
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抄録
The shear viscosity of carbon black filled and calcium carbonate filled polypropylene, PP-EPDM dynamically vulcanized thermoplastic elastomers (TPE) and ABS resins were investigated over a very wide shear rate and shear stress range. This was accomplished using (i) a constant shear stress creep instrument, (ii) a cone-plate rotational rheometer, (iii) a capillary extrusion rheometer. It was found that stresses exist for some of these compounds below which there are only finite deformations and no steady flow. These stresses define yield values. Much attention was given to measurements of creep at low stresses, especially in the neighborhood of the yield value. The magnitudes of yield stresses obtained from such creep measurements are significantly lower than those obtained from using standard extrapolation to zero shear rate of higher stresses from rotational instruments. The shear viscosity behavior near the yield value differs considerably depending upon the type of particle filler in the compound and the rubber content in TPE and ABS. We also observed a high shear viscosity (ca 109 Pas) plateau in many of our systems.
収録刊行物
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- Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan)
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Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan) 25 (3), 125-133, 1997
The Society of Rheology, Japan
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詳細情報 詳細情報について
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- CRID
- 1390001205467212544
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- NII論文ID
- 130004703614
- 10002770691
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- NII書誌ID
- AN00198812
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- COI
- 1:CAS:528:DyaK2sXntVentLk%3D
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- NDL書誌ID
- 4292198
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- ISSN
- 03871533
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可