NIPPON GOMU KYOKAISHI

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Volume 55, Issue 9

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[title in Japanese]

[in Japanese]

1982Volume 55Issue 9 Pages 537-556
Published: 1982
Released on J-STAGE: July 09, 2007

DOIhttps://doi.org/10.2324/gomu.55.537

JOURNAL FREE ACCESS

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[title in Japanese]

[in Japanese]

1982Volume 55Issue 9 Pages 557-570
Published: 1982
Released on J-STAGE: July 09, 2007

DOIhttps://doi.org/10.2324/gomu.55.557

JOURNAL FREE ACCESS

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TEMPERATURE RISE AND FLOW BEHAVIOR OF VARIOUS RUBBERS IN CIRCULAR TUBE

Chikao Tosaki, Tetsuo Katsuta, Etsuji Maekawa

1982Volume 55Issue 9 Pages 571-577
Published: 1982
Released on J-STAGE: July 09, 2007

DOIhttps://doi.org/10.2324/gomu.55.571

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Measurements of flow behavior of four commercially available rubbers and their carbon black compounds were carried out over a shear rate range from 1 to 10³ (s^-1) at 100°C by using a capillary rheometer devised to measure directly temperature rise due to viscous resistance. It was found that the temperature rise was determined more accurate and faster than usual method and was proportional to a square root of total energy per unit volume and time independent of samples.
Relation between the end correction coefficient and the apparent shear rate was irregular for rubber, which was different from other polymer melts. On the other hand, the apparent shear rate γ_a dependence of the entrance pressure loss ΔP_ent for all samples was written experimentally as logΔP_ent∝logγ_a over 3×10 (s^-1) of shear rate. Non-Newtonian flow indices were 0.18-0.22 for raw rubber samples and 0.22-0.42 for compounds. These values were considerably smaller than those of other polymer melts.

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[title in Japanese]

[in Japanese]

1982Volume 55Issue 9 Pages 578-581
Published: 1982
Released on J-STAGE: July 09, 2007

DOIhttps://doi.org/10.2324/gomu.55.578

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[title in Japanese]

G. Ver Strate, [in Japanese]

1982Volume 55Issue 9 Pages 582-585
Published: 1982
Released on J-STAGE: July 09, 2007

DOIhttps://doi.org/10.2324/gomu.55.582

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

1982Volume 55Issue 9 Pages 602
Published: 1982
Released on J-STAGE: July 09, 2007

DOIhttps://doi.org/10.2324/gomu.55.602

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[title in Japanese]

[in Japanese]

1982Volume 55Issue 9 Pages 603-604
Published: 1982
Released on J-STAGE: July 09, 2007

DOIhttps://doi.org/10.2324/gomu.55.603

JOURNAL RESTRICTED ACCESS

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