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Volume 53, Issue 3
Displaying 1-8 of 8 articles from this issue
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[in Japanese]1980 Volume 53 Issue 3 Pages 129-145
Published: 1980
Released on J-STAGE: April 16, 2008
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[in Japanese], [in Japanese]1980 Volume 53 Issue 3 Pages 146-157
Published: 1980
Released on J-STAGE: April 16, 2008
JOURNAL FREE ACCESSDownload PDF (978K) -
[in Japanese]1980 Volume 53 Issue 3 Pages 158-161
Published: 1980
Released on J-STAGE: April 16, 2008
JOURNAL FREE ACCESSDownload PDF (371K) -
[in Japanese]1980 Volume 53 Issue 3 Pages 162-169
Published: 1980
Released on J-STAGE: April 16, 2008
JOURNAL FREE ACCESSDownload PDF (557K) -
[in Japanese]1980 Volume 53 Issue 3 Pages 170-176
Published: 1980
Released on J-STAGE: April 16, 2008
JOURNAL FREE ACCESSDownload PDF (593K) -
Crosslinking of Chlorine-Containing Elastomers by Sulfone-Ether Diamine OligomersShinji INAGAKI, Yukio ONOUCHI, Hiroshi OKAMOTO, Junji FURUKAWA1980 Volume 53 Issue 3 Pages 177-181
Published: 1980
Released on J-STAGE: April 16, 2008
JOURNAL FREE ACCESSSulfone-ether-diamine oligomers (SED oligomers) were prepared by the condensation of p-aminophenol, bisphenol A and dichlorodiphenyl sulfone. The oligomers were mixed with chlorine-containing elastomers, such as chlorinated polyethylene (CPE), chloroprene rubber (CR), epichlorohydrine rubber (CHR) and epichlorohydrine-ethylene oxide rubber (CHC), and the physical properties of their vulcanizates were examined.
As the result, it was found that the tensile properties and heat resistance of vulcanizates were improved by the compounding of SED oligomers. Through an increased crosslink density of the vulcanizates, the SED oligomers may be estimated to contribute to the crosslinking reaction.View full abstractDownload PDF (352K) -
COMPARISON OF THE DISPERSION PARTICK WITH THE AGGREGATES OF XONOTLITE ON THE MECHANICAI PROPERTIES OF THE PVC-XONOTLITE MIXTURE SYSTEMIsao SOUMA, Takashi YOSHIMURA, Hiromutsu WAKANO1980 Volume 53 Issue 3 Pages 182-187
Published: 1980
Released on J-STAGE: April 16, 2008
JOURNAL FREE ACCESSThe filler effects of the dispersion particle of Xonotlite on the mechanical properties of PVC-Xonotlite mixture system were compared with those of the aggregates. Usually, powder of Xonotlite is obtained as aggregates of the needle crystal, while it is hard to make dispersion particle from the aggregates by ordinary mill such as a grinding or ball mill. Therefore, the dispersion particle in this study was prepared by two kinds of procedures. Namely, the one was an application of jet air to the aggregates, the other was an addition of hexa methyl di-siloxane(HMD S) to the reaction system to retard aggregation when Xonotlite was synthesized. The dispersion particle obtained in this manners was impregnated into PVC by mixing roll.
An increase in tensile strength and elongation was observed on these samples compared with the sample filled with the aggregates, but Young′s modulus in the bending test and dynamic modulus (E′) decreased. And a rise of glass temperature (Tg) was smaller than that of the aggregates. From these results, it may be presumed that (1) a surface interaction between particle and matrix decreased because the complicated surface structure of the aggregates was simplified. (2) a volume fraction of the particle in the matrix decreased because of the disintegration of aggregates. (3) a dispersion character of the particle became good, and faults in the matrix decreased; and (4) HMDS affected chemically a further decrease of the surface interaction.View full abstractDownload PDF (520K) -
[in Japanese]1980 Volume 53 Issue 3 Pages 188-189
Published: 1980
Released on J-STAGE: April 16, 2008
JOURNAL RESTRICTED ACCESSDownload PDF (256K)
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