NIPPON GOMU KYOKAISHI
Print ISSN : 0029-022X
Search
Advanced search
OR
Browse
Search
Volume 42, Issue 2
Displaying 1-8 of 8 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • THE ADHESIVE FORCE OF TRANS-POLYCHLOROPRENES TO PLYWOOD MATERIAL
    I. THE INFLUENCE OF THE ADHESIVE FORCE TEST CONDITIONS ON THE RESULTANT ADHESIVE FORCE
    R. Nagao
    1969 Volume 42 Issue 2 Pages 89-94
    Published: 1969
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.42.89
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The influence of the adhesive force test conditions on the resultant adhesive force was measured using a trans-polychloroprene as an adhesive and a plywood as an adherent.
    It was clarified from the experiments which adhesive force test conditions could influence strongly the adhesive force. After this, the constant values necessary as the test conditions of the adhesive force in making generally a test of the adhesive force were determined.
    View full abstract
    Download PDF (420K)
  • THE ADHESIVE FORCE OF TRANS-POLYCHLOROPRENES TO PLYWOOD MATERIAL
    II. THE ADHESIVE FORCE OF THE TRANS-POLYCHLOROPRENES UNCOMBINED AND COMBINED WITH THE OTHER MATERIALS
    R. Nagao
    1969 Volume 42 Issue 2 Pages 95-100
    Published: 1969
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.42.95
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The adhesive force of the pure trans-polychloroprenes and of a trans-polychloroprene combined with a phenol-formaldehyde resin to the plywood material was measured; the maximum adhesive force was 7.4 and 8.7kg/cm2 for the former and for the latter respectively.
    The adhesive force of the uncombined seven polar high polymers to plywood was measured in order to compare it with that of the trans-polychloroprenes; the maximum value of 45.4kg/cm2 was exhibited by polyvinylbutylal.
    View full abstract
    Download PDF (394K)
  • THE CRYSTALLINITY OF ETHYLENE-PROPYLENE TERPOLYMERS
    I. Iwami, S. Inoue, H. Inaba
    1969 Volume 42 Issue 2 Pages 101-109
    Published: 1969
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.42.101
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Commercially available ethylene-propylene terpolymers have been studied using the polarizing microscope, differential scanning calorimeter and spectrometer.
    Some of them contained a little amount of microcrystallites stemming from a comparatively long methylene sequence in their main chain. The melting points of such microcrystallites were observed to be between 40° and 50°C.
    As the influences of crystallinity on the physical properties of the polymers, higher glass transition point and shorter repetition life at high extension were observed.
    View full abstract
    Download PDF (664K)
  • DETERMINATION OF DYNAMIC AND IMPULSIVE SPRING CONSTANTS OF RUBBER VULCANIZATES BY PULSE TESTING METHOD
    M. Fukuda, Z. Kawasaki, T. Arai, Y. Shibata
    1969 Volume 42 Issue 2 Pages 110-116
    Published: 1969
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.42.110
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    By the method indicated in the attached instruction of JIS-K-6385, both the dynamic spring constant and the dynamic loss constant are well calculated for only the case where rubber vulcanizates are excited by a small magnitude of input, and these two constants lose their meaning for the case of exciting a large magnitude of input because of increasing the nonlinearity exhibited in the stress-strain curve.
    Bearing this fact in mind, in this paper, the authors determine the two constants mentioned above in the forms of dynamic or impulsive spring constant and of dynamic or impulsive loss constant respectively.
    The determination addopted here is based on the pulse-testing method, in which the input corresponds to the measured deflection and the output to the load. The impulsive spring constant and the impulsive loss constant are reasonably determined by the values at the excited frequency in the frequency characteristics obtained by the pulse testing method.
    Numerical results are also presented on the vibration test, including comparative discussion of dynamic constants with impulsive ones.
    View full abstract
    Download PDF (610K)
  • [title in Japanese]
    [in Japanese]
    1969 Volume 42 Issue 2 Pages 117-118
    Published: 1969
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.42.117
    JOURNAL FREE ACCESS
    Download PDF (151K)
  • [title in Japanese]
    [in Japanese], [in Japanese]
    1969 Volume 42 Issue 2 Pages 119-131
    Published: 1969
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.42.119
    JOURNAL FREE ACCESS
    Download PDF (935K)
  • [title in Japanese]
    [in Japanese]
    1969 Volume 42 Issue 2 Pages 132-150
    Published: 1969
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.42.132
    JOURNAL FREE ACCESS
    Download PDF (1079K)
  • [title in Japanese]
    [in Japanese]
    1969 Volume 42 Issue 2 Pages 151
    Published: 1969
    Released on J-STAGE: April 16, 2008
    DOIhttps://doi.org/10.2324/gomu.42.151
    JOURNAL FREE ACCESS
    Download PDF (117K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top