The Takahashi laboratory is divided into two groups of wind group and Leo group according to the nature of the fluid. Each group is divided according to the research subject.
  • Wind Team : Research on fluid related vibration for Newtonian fluid such as water and air.
  • Rheology Team : Research on rheology (complex fluid) for non-Newtonian fluid such as surfactant, liquid crystal, polymer solution.

About Rheology group

What's the "Rheology" ?

Rheology is a field of modern science dealing with material flow and deformation. Regardless of the substance to be targeted, substances and phenomena which are too complicated to handle in elasticity theory, plasticity theory, fluid dynamics, etc. are subjects to be studied. The aim of rheology is to elucidate the complex dynamics behavior of matter from the molecular theory and structure theory, and to apply those results to the industry, to help innovate technologies and improve the performance of products. Rheological behaviors of industrial materials often play an important role in actual work processes, and industrial fields involving rheology such as plastics, fibers, rubber, pulp, oils and fats, cosmetics, chemicals, ceramics, metal materials, etc. are expanding.

We are publishing interesting videos on rheology.

Research Introduction

Cosmetics Group

Study on yield like behavior of soft matter
Study on yield and flow characteristics of skin care cream

Liquidcrystal Group

Development of highly functional molecular alignment film formation technology by coating and drying control
Development of functional thin film formation technology by coating of chromonic liquid crystal
Measurement of volume fraction distribution on colloidal dispersion film in a drying process

Elongation Group

Development of shear viscosity anisotropy of anisotropically shaped molecule / particle dispersion fluid and development of orientation control technology in microchannel
Measurement of viscosity anisotropy of anisotropically shaped particle suspension and development of attitude control technology by flow
Development of a rheological measurement method in which the difference in the wettability between the dispersoid and the dispersion medium in a high concentration dispersion system is remarkable

Interface Group

Study on wormlike miceller solution

Surface Group

Control of liquid wettability by solid surface shape
Elucidation of liquid transport phenomena in the gap

Main facilities

  • ARES-LS
  • ARES-G2
  • MCR300
  • MCR301
  • MCR702
  • Rheo-Optics measuring instrument
  • PITA-1
  • CSS450
  • Applicator
  • High speed microscope
  • Tension meter
  • CRYSTA