書誌事項
- タイトル別名
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- MECHANICAL BEHAVIOR OF RAW RUBBER IN MOONEY VISCOMETER
- タンジカン デ ショウメツ スル オウリョク カンワ キョドウ
- PART V. FURTHER STUDIES ON STRESS RELAXATION BEHAVIOR
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Stress relaxation behavior of raw rubbers in a Mooney viscometer were investigated for a relatively short time region by using a photo-recording method.<br>It was found for each rubber species that there exists a fast and a slow relaxing mechanisms in a system and their relaxation curves superpose linearly upon each other.<br>Thus we have<br>ML*=f1+f2 (1)<br>Here ML* denotes the measured stress in Mooney unit, and f1 and f2 represent the stresses corresponding to the fast and the slow relaxing mechanisms, respectively.<br>The time dependence of f1 could be approximated by the equation;<br>f1=YLe-t<sup>*/τ*</sup> (2)<br>irrespective of the species of rubber. Here YL and τ* are the constants independent of time t*.<br>The value of τ* at 100°C appeared to be less than few seconds for each rubber.<br>The stress due to the slow relaxing mechanism, f2, has the following features in its time dependence.<br>f2(t*=0)=ML-YL, (3)<br>f2(t*≅1min)=AL•t*-/2 (3)<br>f(t=∞)=0, (3)<br>where ML is the value of measured stress at t*=0 and AL is a constant independent of t*.<br>The molecular weight, the temperature and the filler content dependences on τ* were found to be the same as those of YL for SBR samples.
収録刊行物
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- 日本ゴム協会誌
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日本ゴム協会誌 36 (8), 709-713, 1963
一般社団法人 日本ゴム協会
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詳細情報 詳細情報について
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- CRID
- 1390001206562851328
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- NII論文ID
- 130001269838
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- NII書誌ID
- AN00269207
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- ISSN
- 18840442
- 0029022X
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- NDL書誌ID
- 9159933
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- 本文言語コード
- ja
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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