For higher-order structure control and fracture behavior analysis by molding of tough polymer in the year, and made a major goal of the following for each of the three themes.
A:Basic research of high toughness of plastic
To develop the high life of materials, it is first necessary to clarify the degradation and destruction mechanism of polymer that is the unknown.
Therefore,
●Precise structure and mechanical properties evaluation and fracture surface observation of the electrolyte membrane
●Mechanical properties of PMMA and Rotaxane-modified PMMA
The basic study of each of the basic physical properties
B:Tough of the structure control and the polymer material by the new process control.
This group is taking advantage of the plastic molding technology, which has been studied so far, and to target the process development for high toughness of the various members.
This year,
●We were considering the possibility of porous membrane formation from the polymer melt or solution by the electrospinning method.
Further we went the basic study of nanoalloy reduction due to the high shear machine.
C:Development of new polyethylene porous separator
The aimed to clarify the correlation between the molecular weight and strength of the polyethylene for constructing the design guidelines with the aim of increased strength of the porous membrane.
For higher-order structure control and fracture behavior analysis by molding of tough polymer in the year, and made a major goal of the following for each of the three themes.
A:Basic research of high toughness of plastic
The analysis by small-angle and wide-angle X-ray scattering of different thickness (25 or 50μm) we went to the electrolyte membrane.
Further, in the dynamic measurement was simultaneously examined uniaxial tensile test was carried out over stress strain relationship at room temperature of (32% humidity).
Furthermore, to examine the appearance and stress over strain characteristics of the crack propagation by loading notched strip sample.
It was further measuring mechanical properties in order to examine the differences in PMMA and rotaxane-modified PMMA.
B:Tough of the structure control and the polymer material by the new process control.
Here Mixing extrusion conditions, by, while adjusting the blending blending ratio by using a special screw shear conditions (Mixing, temperature, time, speed), it was attempted to fine dispersion of the rotaxane.
Further aimed to evaluate the dispersibility by using a light scattering method.
C:Development of new polyethylene porous separator
The fabrication of nano-fiber using ultra-high molecular weight polyethylene we went.
Tried to reveal the surface structure of the produced film performs a search for such a solution Preparation and conditions of the device for adapting the electrospinning ultra high molecular weight polyethylene.
