著者

筒井 晃一 小林 敏勝 西沢 宏司 上野 太三郎 景山 洋行

出版者

一般社団法人 日本レオロジー学会

雑誌

日本レオロジー学会誌 (ISSN:03871533)

巻号頁・発行日

vol.25, no.5, pp.267-273, 1997-12-15 (Released:2012-11-20)

参考文献数

9

被引用文献数

2 2

---

Pigment dispersion technology plays an important role in attaining basic coating qualities such as a ”high quality appearance” and ”high durability”. Authors' experiments have quantitatively proved that a basic principle in pigment dispersion was an ”acid-base interaction between pigment and resin” in either non-aqueous or aqueous mediums, by optical and rheological measurements of pigment dispersions. These dispersions were prepared from pigments, acid-base characteristics of which were measured by a new method developed in our laboratory.A conventional pigment dispersing resin, called an ”amphoteric resin”, was also developed using a new idea that any conventional pigment having a variety of acid-base characteristics must be well dispersed, when a resin containing both acid and base functions was used.Pigments with almost no acid and/or base characteristic could be, however, well dispersed when the pigments were surface modified to have either an acid or base characteristic by plasma surface treatment. This result also supported that the ”acid-base interaction” was important in pigment dispersion.

著者

小林 敏勝

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.26, no.2, pp.107-111, 2005-02-10 (Released:2007-12-25)

参考文献数

8

被引用文献数

7 5

---

Highly concentrated pastes of Au and Ag nanoparticles were prepared by a novel method using a comb-shaped block copolymer and an amine as protective colloid and reducing agent, respectively. The nanoparticles were applied to paint colorants utilizing the surface plasmon light absorption. Au and Ag nanoparticles exhibited clear red and yellow colors, respectively. It was revealed that the nanoparticles possess aesthetic color properties such as transparency and color saturation as well as excellent weather durability. Further, a novel metal paint system was also developed from using the condensed Ag paste, which enables us to produce metal like coatings by a simple, dry and environmentally friendly process.

著者

小林 敏勝

出版者

無機マテリアル学会

雑誌

Journal of the Society of Inorganic Materials, Japan (ISSN:21854378)

巻号頁・発行日

vol.11, no.313, pp.371-376, 2004-11-01 (Released:2011-03-07)

参考文献数

7

被引用文献数

1

著者

小林 敏勝

出版者

一般社団法人 日本画像学会

雑誌

日本画像学会誌 (ISSN:13444425)

巻号頁・発行日

vol.50, no.6, pp.556-562, 2011-12-10 (Released:2011-12-13)

参考文献数

16

---

金や銀などのナノ粒子の懸濁液や含有皮膜は赤や黄色に着色する.これは粒子に存在する表面プラズモンが特定の波長の光と共鳴振動し,その波長の光を吸収する結果,吸収された光に該当する色の補色が観測されるためである.本稿では表面プラズモンによる光吸収の機構と吸収する波長に与える要因を平易に解説する.次に,色材として有用な金や銀ナノ粒子の調製について,筆者らが開発した方法を紹介する.この方法を用いれば金コア銀シェルのような複合ナノ粒子も調製可能である.最後にコーティング分野へ金ナノ粒子を応用した例を題材に,コーティング用色材としてのプラズモン発色の特徴を紹介する.