Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Effect of sulfuric acid hydrolysis condition on yield, particle size and surface charge of cellulose nanocrystals

황산 가수분해 조건이 셀룰로오스 나노크리스탈의 수율, 입도 및 전기화학적 특성에 미치는 영향

  • Ryu, Jae-Ho (Dept. of Forest Sciences, CALS, Seoul National University) ;
  • Youn, Hye-Jung (Dept. of Forest Sciences, CALS, Seoul National University)
  • 류재호 (서울대학교 농업생명과학대학 산림과학부) ;
  • 윤혜정 (서울대학교 농업생명과학대학 산림과학부)
  • Received : 2011.11.29
  • Accepted : 2011.12.20
  • Published : 2011.12.30
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Abstract

Sulfuric acid hydrolysis is a typical approach for producing cellulose nanocrystals. The method has been widely used, but it has a disadvantage of low yield of cellulose nanocrystals compared to mechanical method. To expand the application of cellulose nanocrystals in practical, we should be able to produce them with higher yield and the controlled properties. In this study, therefore, we intended to investigate the effect of sulfuric acid hydrolysis condition on the characteristics of the prepared cellulose nanocrystals. The concentration of sulfuric acid, temperature and hydrolysis time were varied, and the yield as well as diverse properties including the morphology, size and zeta potential were examined. We could obtain cellulose nanocrystals up to 70% of yield and found that the properties were dependent on the reaction condition. It would be helpful to select an appropriate condition for producing cellulose nanocrystals.

Keywords

References

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