| Budget Amount *help |
¥44,330,000 (Direct Cost: ¥34,100,000、Indirect Cost: ¥10,230,000)
Fiscal Year 2018: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2017: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2016: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2015: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
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| Outline of Final Research Achievements |
Polymer composites containing polymer matrix with polymeric nanofibers made of different types of polymers were fabricated. We have enhanced the elastic moduli of the new types of polymer composites primarily by considering the reinforcing effects of the nanofibers. To achieve the goal, cellulose nanofibers (C-NF) with excellent mechanical property were fabricated through the saponification of electrospun cellulose-acetate (CA) nanofibers. It was also revealed that the elastic modulus of the nanofibers could be enhanced by annealing the CA nanofibers before the saponification. Additionally, to improve the reinforcing effects of the nanofibers, the orientation and the surface modification of C-NF were carried out. Successively the C-NF were compounded into biodegradable polycaprolactone (PCL) to eventually obtain eco-friendly composites. The new composites possessed high elastic modulus closer to the theoretical value, higher than that of the composites made by the conventional methods.
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