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Predecessor
Volume 74, Issue 1
Displaying 1-10 of 10 articles from this issue
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[in Japanese]2001 Volume 74 Issue 1 Pages 1
Published: 2001
Released on J-STAGE: May 28, 2007
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[in Japanese]2001 Volume 74 Issue 1 Pages 2
Published: 2001
Released on J-STAGE: May 28, 2007
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[in Japanese], [in Japanese], [in Japanese]2001 Volume 74 Issue 1 Pages 3-5
Published: 2001
Released on J-STAGE: May 28, 2007
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[in Japanese], [in Japanese], [in Japanese], [in Japanese]2001 Volume 74 Issue 1 Pages 6-11
Published: 2001
Released on J-STAGE: May 28, 2007
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[in Japanese]2001 Volume 74 Issue 1 Pages 12-17
Published: 2001
Released on J-STAGE: May 28, 2007
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[in Japanese]2001 Volume 74 Issue 1 Pages 18-21
Published: 2001
Released on J-STAGE: May 28, 2007
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[in Japanese]2001 Volume 74 Issue 1 Pages 22-24
Published: 2001
Released on J-STAGE: May 28, 2007
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Hirokazu OIKI, Makiko TSURUTA, Hironobu TAMURA, Tomoo HONDA, Keiko TAK ...2001 Volume 74 Issue 1 Pages 25-28
Published: 2001
Released on J-STAGE: May 28, 2007
JOURNAL FREE ACCESSThe screening of microorganism growing in the tank to decompose natural rubber waste was attempted. Two types of microorganism were detected. The one is bacteria which produced lactic acid by using natural rubber waste as a sole nutrition. The amount of lactic acid produced was increased by adding xylose to the natural rubber waste. The other is the green algae, which degradated natural rubber waste effectively; it decreased the protein content in natural rubber waste to almost half its original value. The natural rubber waste was also decomposed by immobilized microorganism to the same extent with the method mentioned above.View full abstractDownload PDF (1070K) -
Elasto-Plastic Behavior of a Plastic-Rubber Composite MaterialHiroshi IIZUKA, Akinori HAYASHI, Daisuke HOSHI, Kazuyuki KABE2001 Volume 74 Issue 1 Pages 29-34
Published: 2001
Released on J-STAGE: May 28, 2007
JOURNAL FREE ACCESSThe purpose of this paper is to propose a new model to estimate elasto-plastic behavior of plastic-rubber composite materials (PRCM). The PRCM are made by means of dynamic vulcanization with a blend of polypropylene (PP) and ethylene propylene-diene rubber (EPDM). The dynamic vulcanization yields two-phase structure, in which the EPDM particles are dispersed into the PP matrix. In this study, finite element analysis (FEA) and a mechanical analysis are performed to discuss the deformation mechanism of the PRCM. A mechanical model based on the cellular solid structure is proposed to explain the elasto-plastic behavior of PRCM. The model reveals that the elasto-plastic deformation of the PRCM is attributed to the plastic yielding at the PP cell walls.View full abstractDownload PDF (2731K) -
Kiyohiro INOUE, Tetsuya ITO, Tadashi MIURA, Hajime KANEKO, Masanori KU ...2001 Volume 74 Issue 1 Pages 35-40
Published: 2001
Released on J-STAGE: May 28, 2007
JOURNAL FREE ACCESSThe damping behavior of organic hybrids prepared from acrylic rubber(AR) and the functional organic filler were investigated. 4, 4', -Thio-bis (3-methyl-6-tert-butylphenol) (F1) and Pentaerythritol tetrakis [3-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionate] (F2) were used as the functional organic molecules. DSC and DMA indicate the miscibility between AR and organic fillers, since these hybrids have a single glass-transition temperature. With increasing filler content, the height of tan δ peak increases accompanying a shift of the peak position to the higher temperature. It was found that Kwei's equation can well describe the DSC result, and the parameter q was calculated to be 46 for AR/F1 and-15 for AR/F2. These results suggested that the AR-F1 interaction is much stronger than the AR-F2. FT-IR study further confirmed that there is a strong hydrogen bond between AR and F1. As a result, the stability of damping properties for AR/F1 is quite good, whereas for AR/F2, it is poor due to a gradual crystallization of F2 in AR matrix.View full abstractDownload PDF (1097K)
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