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知的流動評価研究分野 高木 敏行
下記特別講演会を(社)日本機械学会東北支部並びに(社)日本機械学会機械力学・計測制御部門東北地区ダイナミックス&コントロール研究会との共催により、8月3日(金)午後3時より開催致します。
ブダペスト工科経済大学のZrinyi教授(副学長)に電場磁場等に反応する柔らかい材料について講演いただきます。
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日時: 平成19年8月3日(金)15:00〜16:00
場所: 東北大学流体科学研究所 2号館大講義室
講師: Prof.
Mikl s Zrinyi
(Department of Physical Chemistry and Materials Science, Laboratory of
Soft Matters, Budapest University of Technology and
Economics, Budapest, HUNGARY)
演題: 「MAGNETIC- AND ELECTRIC FIELD
RESPONSIVE SOFT MATERIALS 」
In the last few years we have observed a migration of interest and activity
from the traditional hard materials towards soft areas such as biomaterials,
self assembly materials, complex fluids and polymer gels. It has been recognised
that no other class of smart materials can be made to respond to so many
different stimuli like polymer gels. The triggering stimuli include temperature,
solvent composition, specific molecules, pH, ionic composition, light,
electric and magnetic fields. The response to these stimuli can also be
diverse, including significant changes in swelling-, mechanical-, optical-
and transport properties. Several important developments have been made
in the field of smart polymer gels during the last decades. Colloidal particles
with special electric and magnetic properties can be built into polymer
gels or elastomers. These particles couple the shape of the soft material
to the external field. Shape distortion occurs instantaneously and disappears
abruptly when external field is applied or removed, respectively. This
abrupt shape transition can be applicable to a variety of fields as a new
driving mechanism and can be exploited to construct new type of soft actuators,
valves, colloidal motors as well as vehicles for controlled drug delivery.
Deformation induced by magnetic and electric field, temporary reinforcement
due to magnetic interactions as well as on/off switching control of magnetic
polymeric membranes will be the main subject of the presentation.
連絡先:三木寛之(東北大学)Tel/Fax 022-217-5298 |