Clay
Nanotubes for Controlled Release of Corrosion Protective Chemicals
Prof. Yuri M. Lvov
Institute
for Micromanufacturing, Louisiana Tech University, Ruston, USA
主催：繊維学会西部支部、G-COE「未来分子システム科学」
共催：九州大学 先導物質化学研究所、九州大学 高分子機能創造リサーチコア
日時：2009年8月18日（火）15:00-16:30
場所：九州大学伊都キャンパスCE40棟2Fセミナー室
Lvov博士は、ルイジアナ工科大学の教授で天然無機ナノチューブを用いたインテリジェント複合材料に関して活発に研究を展開されています。この度、九州大学を訪問される機会に講演会を開催いたしました。多数ご出席下さいますようご案内申し上げます。
Halloysite aluminosilicate
nanotubes with a 15 nm lumen, 50 nm external diameter, and length of 800 -400
nm have been developed as an entrapment system for loading, storage, and
controlled release of anticorrosion agents and biocides. Fundamental research
to enable the control of release rates from hours to months is being
undertaken. By variation of internal
fluidic properties, the formation of nanoshells over the nanotubes and by
creation of smart caps at the tube ends it is possible to develop further means
of controlling the rate of release. Anticorrosive
halloysite coatings are in development and a self-healing approach has been
tested for repair mechanisms through response activation to external impacts.
Applications of halloysite as nanometer-scale containers are also discussed
including the use of halloysite clay tubes for sustained drug release, for bone
implant composites, and for chemical separations. Halloysite nanotubes are
available in thousands of tons, and remain sophisticated and novel
nanomaterials which can be used as smart nano-containers. Halloysite is also a
"green" material and due to the fact that it is a natural product
will not add risk to the environment.
連絡先：高原 淳
九州大学先導物質化学研究所
分子集積化学部門
電話 092-802-2515
http://takahara.ifoc.kyushu-u.ac.jp
e-mail:takahara@cstf.kyushu-u.ac.jp