Journal of the Japan Society of Colour Material

Online ISSN : 1883-2199
Print ISSN : 0010-180X
ISSN-L : 0010-180X

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Volume 53, Issue 7

Displaying 1-6 of 6 articles from this issue

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A Streaming Potential Study on the ZnO-α-FeOOH Powder Mixture/Water Interface

Tamiki NOZAWA, Mamoru SENNA, Hiroshi KUNO

1980 Volume 53 Issue 7 Pages 381-385
Published: July 20, 1980
Released on J-STAGE: November 20, 2012

DOIhttps://doi.org/10.4011/shikizai1937.53.381

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Streaming potential was measured on flowing aqueous solutions through a powder bed comprising ZnO-α-FeOOH mixture. No change in the zeta potential with regard to the powder composition was observed, as far as the powder bed contains ZnO. The zeta potential on the powder bed of pure α-FeOOH, however, changed depending on the Zn source, even when the equilibrium zinc concentration in the flowing solution is kept constant. This might be attributed to the variation of the state of Zn on the α-FeOOH/solution interface due to the different complex ions involved.

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Radiation Processing of Polymer Emulsion (II)

Radiation Effects on Thermosetting Emulsion

Keizo MAKUUCHI, Akio KATAKAI, Hiroshi ITO, Toru TAKAGI, Kunio ARAKI

1980 Volume 53 Issue 7 Pages 387-393
Published: July 20, 1980
Released on J-STAGE: November 20, 2012

DOIhttps://doi.org/10.4011/shikizai1937.53.387

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The crosslinking characteristics of hydroxylated acrylic emulsions irradiated with Co-60 γ rays were investigated by measuring the gel fractions of the films baked with melamine resin. Cure response of the irradiated emulsions increased with increasing dose, owing to the crosslinking of the polymers in the emulsion particles by radiation. The irradiated emulsions were crosslinked with melamine resin at lower temperature than the unirradiated emulsion. Crosslinking in the particles by radiation and crosslinking between particles with melamine resin at the elevated temperatures were dependent on the distribution of hydroxyl groups in the particles. Localization of hydroxyl groups near the particle surface did not facilitated both kinds of crosslinking.

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Adsorption of Nonionic Surfactants and Their Dispersing Effect on the Mixed Disperse System

Hiroshi TAKAKI, Mamoru SENNA, Hiroshi KUNO

1980 Volume 53 Issue 7 Pages 394-396
Published: July 20, 1980
Released on J-STAGE: November 20, 2012

DOIhttps://doi.org/10.4011/shikizai1937.53.394

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Relation between Metal Surface and Paintability

Shigeyoshi MAEDA

1980 Volume 53 Issue 7 Pages 397-406
Published: July 20, 1980
Released on J-STAGE: November 20, 2012

DOIhttps://doi.org/10.4011/shikizai1937.53.397

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The Relationshionship of Organic Pigments and Paints

Minoru HAGINOYA

1980 Volume 53 Issue 7 Pages 407-413
Published: July 20, 1980
Released on J-STAGE: November 20, 2012

DOIhttps://doi.org/10.4011/shikizai1937.53.407

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A Summary of the New Uses (-With Respect to Energinduduotry) of Sarfactant in Near Future

Seiji ENDO, Isao FUJIKURA

1980 Volume 53 Issue 7 Pages 414-418
Published: July 20, 1980
Released on J-STAGE: November 20, 2012

DOIhttps://doi.org/10.4011/shikizai1937.53.414

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