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Volume 63, Issue 10
Displaying 1-6 of 6 articles from this issue
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Hiroshi FUKUI, Ryujiro NAMBA, Tuneo SUHARA, Michihiro YAMAGUCHI1990 Volume 63 Issue 10 Pages 589-597
Published: October 20, 1990
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSHexamethylcyclotrisiloxane (D3) was deposited on pigments at 80°C by the chemical vapor deposition. The polymerization of D3 took place on the pigments by their catalytic activity, that resulted in the formation of polydimethylsiloxane (PDMS) on the surface of the pigments particles. The pigments could be classified into two types.
Type I : ultramarine blue, zinc oxide, mica, magnetite
Type II : prussian blue, talc, kaolinite, hematite, etc.
The pigment of type I increased in weight initially up to a plateau level with the reaction time, and no further weight increase was observed. That of type II monotonously increased in weight with the reaction time. An oily liquid was ultimately produced on this type of pigment.
The oily liquid formed on kaolinite (type II) was extracted easily, and identified by the GPC and the pyrolysis-GC as a linear PDMS having a molecular weight of about 40,000. On the other hand, the PDMS film on a type I pigment (except mica), which could not be extracted, was considered to have a strong interaction with the pigment surface.View full abstractDownload PDF (1152K) -
Shin-ichi ISHIDA, Seisirô ITÔ1990 Volume 63 Issue 10 Pages 598-602
Published: October 20, 1990
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSA white film was obtained by the electrolytic coloring of the anodic oxide film of aluminum in an electrolytic bath containing a mixture of aluminum sulfate and magnesium sulfate. In order to study the mechanism of electrolytic coloring, the anodic stripping was applied to the film in a sulfuric acid bath. As a result, the white film was slightly decolorized by the anodic stripping in a sulfuric acid bath, but the white film, once dipped in hot water over five minutes, was not decolorized at all even by the same stripping chemicals. This implies that magnesium, reduced and deposited in the film pores, was changed to the hydrate and the oxide in hot water. The cross sections of the white films were observed by TEM. The deposition layer, such as the hydrate and the oxide, was observed at the bottom of the film pores. But these depositions were similarly observed in the film that was slightly decolorized by the anodic stripping, and were not changed by the anodic stripping.View full abstractDownload PDF (751K) -
Isao TAKEUCHI1990 Volume 63 Issue 10 Pages 603-608
Published: October 20, 1990
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSAdhesion of two coated films on wood by use of the 4 types of wood coating was studied.
Data of adhesive strength showed that the best adhesive strength was obtained by the combination of polyurethane (UR) sanding sealer and UR clear (or aminoalkyd clear).
The face of adhesive destruction of UR sanding sealer coating system contained some cohesive destruction of wood. This resurt was expected that the adhesion between UR sanding sealer film and wood is remarkably strong because of the reaction between NCO group in UR coating and H2O in wood.View full abstractDownload PDF (606K) -
Masaru MATSUOKA1990 Volume 63 Issue 10 Pages 609-615
Published: October 20, 1990
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDownload PDF (1107K) -
Sumio TOKITA1990 Volume 63 Issue 10 Pages 616-621
Published: October 20, 1990
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDownload PDF (695K) -
Takeyuki TANAKA1990 Volume 63 Issue 10 Pages 622-632
Published: October 20, 1990
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDownload PDF (1207K)
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