NIPPON GOMU KYOKAISHI
Print ISSN : 0029-022X
Search
Advanced search
OR
Browse
Search
Volume 50, Issue 8
Displaying 1-7 of 7 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • [title in Japanese]
    [in Japanese]
    1977 Volume 50 Issue 8 Pages 497-505
    Published: 1977
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.50.497
    JOURNAL FREE ACCESS
    Download PDF (761K)
  • [title in Japanese]
    [in Japanese]
    1977 Volume 50 Issue 8 Pages 506-521
    Published: 1977
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.50.506
    JOURNAL FREE ACCESS
    Download PDF (1147K)
  • [title in Japanese]
    [in Japanese]
    1977 Volume 50 Issue 8 Pages 522-525
    Published: 1977
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.50.522
    JOURNAL FREE ACCESS
    Download PDF (328K)
  • AN ANAIYSIS OF THE BEHAVIOR OF RUBBER BELLOWS-DIAPFRAGM
    Hisayashi SEKIGUCHI, Motohide ONO, Takao KINUGWA, Takao SAKAMOTO
    1977 Volume 50 Issue 8 Pages 534-543
    Published: 1977
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.50.534
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A thin rubber coated sheet whose shape is similar to bellows or diapfragm is often used in the boundary of two kinds of fluids or gases with a pressure difference. When this sheet is used between piston and cylinder, its area of pressurized face is kept constant even when the piston stroke is varied.
    The endurance limit and fatigue life are very important problems for the usage of such a sheet. So, in order to discuss such matter, we have tried to calculate the behavior of such a sheet in relation to the piston stroke and obtained some results and charts.
    View full abstract
    Download PDF (548K)
  • THERMAI DEGRADATION OF POLYBUTADIENE IN SOLUTION
    Tadao Ohkita, Mitsuo Kodomari, Chikao Hashimoto, Eizi Yanagida
    1977 Volume 50 Issue 8 Pages 544-547
    Published: 1977
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.50.544
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    When a dilute solution of polybutadiene was heated, degradation of polybutadiene occurred predominantly without gelation. The drop of the solution viscosity was very dependent on the solvents as follows, o-dichlorobenzene>chlorobenzene, o-xylene>i-propylbenzene>ethylbenzene>toluene.
    This remarkable solvent effect may be interpreted to mean that the dominant factor affecting the drop of the solution viscosity is steric factor of solvent molecule rather than solubility parameter or polarity of solvent. The rate of degradation was much accelerated by the addition of benzoylperoxide and depressed by the addition of radical inhibitor such as N-phenyl-2-naphthylamine or under the nitrogen atomsphere.
    View full abstract
    Download PDF (305K)
  • NETWORK BOUND ANTIOXIDANTS IN DIENE RUBBER
    Yoshiro Nakamura, Kunio Mori, Fumio Akaishi
    1977 Volume 50 Issue 8 Pages 548-552
    Published: 1977
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.50.548
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    6-R-1, 3, 5-triazine-2, 4-dithiol and 4, 6-bis R-1, 3, 5-triazine-2-thiol (R: N(i-C3H7)C6H4NHC6H5, NHC6H2(t-C4H9)2OH) were found to show the reactivity as crosslinking coagent on butadiene-rubber crosslinking with MBTS, MBTS-S or peroxide to give a crosslinked butadiene rubber in which 6-R-1, 3, 5-triazine-2, 4-dithio crosslinks and 4, 6-bis R-1, 3, 5, -triazine-2-thio pendants were formed. The resulting crosslinked products were confirmed to retain an aging resistant property even after solvent extraction. Such a nonextractable antioxidant property was never observed on the products containing the conventional antioxidant such as N-phenyl-2-naphthylamine. Some typical crosslinking formulations which gave the crosslinked products with a nonextractable antioxidant property were presented for SBR, NR, NBR and EPDM.
    View full abstract
    Download PDF (386K)
  • [title in Japanese]
    1977 Volume 50 Issue 8 Pages 553-554
    Published: 1977
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.50.553
    JOURNAL RESTRICTED ACCESS
    Download PDF (210K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top