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Changes of Micro- and Nanoscopic Morphology of Various Bioresources by Different Milling Systems

  • Jang, Jae-Hyuk (Department of Forest Products, National Institute of Forest Science) ;
  • Lee, Seung-Hwan (College of Forest and Environmental Sciences, Kangwon National University) ;
  • Lee, Min (Department of Forest Products, National Institute of Forest Science) ;
  • Lee, Sang-Min (Department of Forest Products, National Institute of Forest Science) ;
  • Kim, Nam-Hun (College of Forest and Environmental Sciences, Kangwon National University)
  • Received : 2017.09.04
  • Accepted : 2017.10.13
  • Published : 2017.11.25

Abstract

This study was carried out to investigate the changes in micro- and nanoscopic morphology of cellulose nanofibrils (CNFs) from various bioresources by investigating various mechanical milling systems. Mechanical milling in herbaceous bioresources was more effective than in woody bioresources, demonstrating lower energy consumption and finer morphology. The milling time to reach nanoscopic size was longer in woody bioresources than in herbaceous bioresources. Furthermore, at the same level of wet disk milling time, CNFs from herbaceous bioresources showed more slender morphology than those from woody bioresources. Tensile properties of nanopaper prepared from CNFs of herbaceous bioresources were higher than those of woody bioresources. The highest tensile strength was found to be 77.4 MPa in the nanopaper from Evening prim rose.

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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