1 / 10

Review of Microfibrillated Cellulose (MFC) for Papermaking Yong (Peter) Zou and Jeffery Hsieh

Review of Microfibrillated Cellulose (MFC) for Papermaking Yong (Peter) Zou and Jeffery Hsieh. Pulp and Paper Engineering School of Chemical and Biomolecular Eng. Georgia Institute of Technology. Microfibrillated cellulose (nanofiber).

emmanuel-dalton
Download Presentation

Review of Microfibrillated Cellulose (MFC) for Papermaking Yong (Peter) Zou and Jeffery Hsieh

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Review ofMicrofibrillated Cellulose (MFC) for PapermakingYong (Peter) Zou and Jeffery Hsieh Pulp and Paper Engineering School of Chemical and Biomolecular Eng.Georgia Institute of Technology

  2. Microfibrillated cellulose (nanofiber) • Definition:Microfibrillated cellulose is isolated and purified cellulose fibres recovered from original cellulose filamentous structure, as cellulose fibres consist of nanometre-scale microfibrils (4 nm wide, 100–200 nm long). Nano: Sizes / dimensions in the 1-1000 nanometer (billonth, nm)(10-9 m) range

  3. The structure of wood cell and cellulose microfibril P is the primary wall, S1, S2 and S3 are outer, middle and inner layer of the secondary wall, respectively [ from Iwamoto etal. Appl.Phys. A.81.1109-1112 (2005)

  4. Pulp Refining Enzyme Homogenizing Nano-structured Cellulose (NSC) Grinding Produce process • Conventionally-mechanical Pulp fiber- original material, refining, high pressure homogenizing and grinding. • Bioprocess- Enzymatic Reinforcement Process

  5. Characterization Indirect-characterization products from macroscopic level –induce; Direct-Modern analysis tools-microscopic level • AFM (atomic force microscopy) • SEM (Scanning Electron Microscope) • TEM (Transmission Electron Microscope)

  6. AFM

  7. SEM

  8. TEM

  9. Paper Industry’s Applications • Papermaking- Improving the strength of paper products including tensile strength, burst strength, tear, density, smoothness and also an effect of increasing the air permeability are obtained. In addition, the capacity of retaining the filler and the adsorption of a dye are also improved by the Nanofiber. • Paper coating-improving printability, decreasing viscosity of the coating material

  10. Comments • Renewable resource • Bioprocess-enzyme • Lack of experimental data-need more work • Extend to non-wood material • Add pretreatment to improve efficiency • Modify microfibrillated cellulose-(hydrophilic to hydrophobical nature)

More Related