成果報告書詳細
管理番号20130000000749
タイトル*平成24年度中間年報 ナノテク・先端部材実用化研究開発 超省エネ型の環境清浄化用複合機能化ナノ構造エアデバイスの研究開発
公開日2013/10/18
報告書年度2012 - 2012
委託先名日本エアー・フイルター株式会社 日本バルカー工業株式会社 株式会社クラレ 国立大学法人東京工業大学
プロジェクト番号P05023
部署名電子・材料・ナノテクノロジー部
和文要約
英文要約
1.Polyether sulfone(PES) nanofibers for ultra-fine air filtration were obtained with average fiber diameter of 100nm by optimization of electro spinning conditions. The nanofiber web thus obtained showed 99.9% rejection of the 0.1μm dust particles with a pressure drop of less than100Pa.2. Nanocomposite nanofiber webs were prepared by electro spinning of PES with nanoparticles of scallop shell to show high anti-bacillus activity(2.5) against MRSA.

1.Eval nanofibers with the diameter of 60-70nm were achieved by electro spinning of Eval/PEO/2.5μm Silver zeolite/HFIP solution under the optimized conditions.2. Antifungal activity(≧2.5) and minimum inhibitory concentration(≦1,000ppm) against E-Coli, Pseudomonas aeruginasa, Staphyococcus aureus, MRSA were achived by blend spinning nanocomposite Eval nanofiber with 2.5μm Silver zeolite. 3. Filter performance was achieved 100% rejection of 0.1μm dust particles with a pressure drop of 96 Pa.

1.Poly(vinyliden fluoride)(PVDF) nanofiber web with fiber diameter of 40-80nm was achieved by electrospinning of PVDF/DMF solution. The layered structure consist of the PVDF web and expanded PTFE membrane showed 99.9% rejection of 0.1μm dust particles with a pressure drop of 98 Pa.2.Anti-bacillus activity of more than 2.5 and heat exchange efficiency of 30% higher than that of the conventional commercial product were achieved by the layered membrane with immobilized TiO2/ SiO2nanoparticles.3.Surface modification of the expanded PTFE membrane was performed by plasma treatment. The contact angle decreased from 140° to 0° after atmospheric-pressure plasma treatment for 1m/min.

1.Nanofiber webs with the fiber diameter of 70-100nm , the filtration efficiency of 99.95%, and the pressure drop of 64Pa.were obtained by electrospinning of PES with the silver catalysts of 20nm average diameter.2.The nanocomposite nanofiber webs thus obtained showed anti-bacillus activity of more than 2.5. The nanofiber webs were fixed to the surface of a layered activated carbon sheet to show the deodorization efficiency of 95% in one path air flow.3.Method of adhesion and conditions of fixing of nanofiber webs to a base medium were investigated by applying polymer binders between nanofiber webs and the substrate sheet.
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