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Green Nanofibers preparation and its application in filtration and separation

Green Nanofibers preparation and its application in filtration and separation. Jin Long, Xiwen Wang, Ji an Hu State Key Lab of Pulp and paper engineering, South China University of Technology. Contents. 4. 1. 2. 3. 5. Conclusion. background. experiments. Results and discussion.

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Green Nanofibers preparation and its application in filtration and separation

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  1. Green Nanofibers preparation and its application in filtration and separation • Jin Long, Xiwen Wang, Jian Hu • State Key Lab of Pulp and paper engineering, South China University of Technology

  2. Contents 4 1 2 3 5 Conclusion background experiments Results and discussion Acknowledgement

  3. Background Liuquid filtration 1、Oil filtration 2、Water filtration

  4. Nanofiber for filtration 1、glass fiber 2、electronic spun fiber 3、melt blown fiber 3、fibrillated fiber

  5. tencel fiber Fropm Lenzing Corp. AFM Photo

  6. experiment • 1、Preparation of green nanofiber • 4mm×1.7dtex (Lenzing Corp.) • pretreated by 0.05wt% NaOH and used PFI • grinder to beat to 62oSR, 76oSR and 90oSR • 2、Preparation of water filtration • membrane substrates.

  7. experiment Characterization of nanofiber and membrane The fiber length is tested by Kajaani FS-300 fiber length auto tester

  8. Results and Discussions Nanofiber properties SEM images of Tencel nanofibers The specific surface area and the mean diameter of different nanofibers

  9. Results and Discussions The length distribution of nanofibers Length distribution of Tencel nanofibers at 90 oSR

  10. C A B Results and Discussions membrane properties Basis weight of prepared membrane is 70 g/m2 and thickness is 120μm. So the porosity of prepared membrane turns out to be 58% The optical photo of membrane (A) Blank sample; (B) With 20% nanofiber of 90oSR ; (C) With 20%PET fiber of 0.1dtex

  11. Results and Discussions Formation index Formation index of deferent membranes

  12. Results and Discussions Pore ​​size distribution The pore ​​size distribution of membrane with 900SR nanofiber in 20% ratio

  13. Results and Discussions mean pore size Mean pore size of deferent membranes

  14. Results and Discussions Blank sample

  15. Results and Discussions With 20% PET fiber of 0.1dtex

  16. Results and Discussions With 20% nanofiber of 90oSR

  17. Separator Double layer Tencle + PET 100% Tencle

  18. The end Thank you very much for your attention! Acknowledgment： This work is supported by National High-tech R&D Program of China(863 Program):2013AA031902 and Lenzing group

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