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Okuno, Kenji; Ohira, Shigeru; Hayashi, Takumi
Purazuma, Kaku Yugo Gakkai-Shi, 71(5), p.394 - 399, 1995/05
no abstracts in English
; *; ; Sanokawa, Konomo; *; *
Nihon Genshiryoku Gakkai-Shi, 26(4), p.70 - 79, 1984/00
no abstracts in English
; *; *
Journal of Nuclear Materials, 113, p.202 - 206, 1983/00
Times Cited Count：4 Percentile：50.97(Materials Science, Multidisciplinary)no abstracts in English
Nankawa, Takuya
no journal, ,
Urushi, the main component of which is urushiol, is a natural lacquer polymer which has unique characteristics, including high water resistance, chemical resistance, and antibacterial propertiesl. Since ancient times, lacquer has often been used not only in its original brown color, but also in shades such as black and vermilion. Black lacquer is traditionally produced by adding iron to lacquer, but the reaction mechanism both raw and black lacquer (Kiurushi and Kurourushi, respectively) is largely unknown even today. In this study, we investigated the structure of them in order to develop a new coating material that has high durability and antibacterial properties by mimicking urushi coating using various measurement methods (FT-IR, XANES, EXAFS, SAXS, SANS). As a result, the addition of iron ions is thought to catalyze the polymerization and blackening of urushiol using iron as a catalyst, as well as the arrangement of the iron core to form the structure of the lacquer. This is the first observation that the polymer network structure is completely different between raw lacquer and black lacquer, and the structural changes of black lacquer during UV irradiation and heating were also investigated in the same way. It was indicated that the physical properties of the lacquer film could be controlled by controlling the formation reaction of the lacquer film.
広田 憲亮; 橘 幸男
舟本 幸大*
JP, 2022-067098 
Patent licensing information
【課題】 耐熱性及び硫酸に対する耐食性に優れる耐硫酸腐食性被覆部材を提供する。 【解決手段】 鋼製の基材と、前記基材の表面に設けられた複合酸化物皮膜とを備えた耐硫酸腐食性被覆部材であって、前記複合酸化物皮膜は、酸化アルミニウム粒子、酸化クロム粒子及び酸化ケイ素粒子と、前記各粒子の隙間に充填された酸化クロム相とを含む第1皮膜を含み、前記酸化クロム相は、更に、リン酸塩化合物、硼酸塩化合物、及び珪酸塩化合物から選択される少なくとも一つの化合物を含有する、耐硫酸腐食性被覆部材。
