화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.17, No.3, 521-526, May, 2011
DOI10.1016/j.jiec.2010.10.022  Export Citation
Preparation of ultrastrength nanopapers using cellulose nanofibrils
Sang-Jin Chun1, 2, Sun-Young Lee1, †, Geum-Hyun Doh1, Soo Lee3, and Jung Hyeun Kim2
  • 1Department of Forest Resources Utilization, Korea Forest Research Institute, Seoul 130-712, Republic of Korea
  • 2Department of Chemical Engineering, University of Seoul, Seoul 130-743, Republic of Korea
  • 3Department of Chemical Engineering, Changwon National University, Changwon 641-773, Republic of Korea
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Cellulose nanofibrils were manufactured from cellulose powder (45 μm particle size) using a high pressure homogenizer with various pass numbers. In the present study, the cellulose nanofibrils were used to prepare nanopapers of extremely high tensile performance. Chemical modifications with the increased pass number through the homogenizer provided the dramatically increased tensile modulus and strength of the nanopapers. The high tensile properties are related to the increased surface area, improved crystallinity, hydrogen bonding sites by the homogenization, 3-dimension network structure between the cellulose nanofibrils, and improved stress distribution during the tensile test.
Keywords:Cellulose nanofibrils;Nanopaper;Alkali treatment;Silanes;Tensile properties
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