| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
The pore size of voids in crazed polypropylene (PP) was controlled by Laplace-pressure. Void diameter decreased and dropped out at 100 degrees lower temperature from the melting point of PP. These crazed PP are adequate to various supporting materials of functional matter for the application. we attempted to control the pore size by Laplace-pressure and support various matters in polymer. We investigated to extend the craze area for high porosity. New voids were generated and grown around existing voids, and the number of voids per unit area was increased while maintaining the average void diameter. Healing temperature (Pore diameter decreasing temperature) of the crazed PP films by Laplace-pressure was 60 °C in air, however 110-135 °C in electrolytic solutions. This craze healing temperature depended on the interface tension. These Nano porous PP fibers were composited astaxanthine which is carotenoid group and antioxidation for cosmetic and supplement items.
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