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Preparation and applications of cellulose nanofibrils with different chemical composition using various pretreatments

첫 페이지 보기
  • 발행기관
    강원대학교 산림과학연구소 바로가기
  • 간행물
    강원대학교 산림과학연구소 학술대회 바로가기
  • 통권
    KNU IFS 2018 Annual International Symposium of Institute of Forest Science (2018.09)바로가기
  • 페이지
    pp.2-2
  • 저자
    Chan-Woo Park, Song-Yi Han, Pureun-Narae Seo, Seung-Hwan Lee
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A450131

원문정보

초록

영어
Cellulose nanofibrils (CNF) can be divided into lignocellulose nanofibrils (LCNF), holocellulose nanofibrils (HCNF), and pure cellulose nanofibrils (PCNF), dependent upon their chemical compositions. The chemical composition can be adjusted by various chemical treatments such as acid treatment, sodium chlorite-acetic acid treatment, alkaline-peroxide treatment, alkaline treatment, hydrothermal treatment, which affects properties of CNF and CNF reinforced nanocomposites as well as defibrillation efficiency. In this study, the effect of chemical composition on properties of CNF and CNF/thermoplastic starch plastic (TPS) composite was investigated. The contents of lignin and hemicellulose in lignocellulose were adjusted by sodium chlorite-acetic acid treatment and NaOH treatment, respectively, and then defibrillated using a wet-disk mill. As the content of lignin and hemicellulose was decreased, the defibillation efficiency was improved, resulting a decrease in the average diameter and an increase in the specific surface area of CNFs. As the hydrophobic lignin was removed, the hydrophilicity of CNF　was increased, resulting in improved tensile properties of nanopapers and CNF/TPS composite. The presence of hemicellulose in HCNF without lignin can enhance the tensile properties of nanopaper and CNF/TPS composite due to the high hydrophilic property of hemicellulose, which can act as an adhesive between hydrophilic polymers.

키워드

Celluloce nanofibril Chemical composition Delignification Defibrillation Nanocomposite

저자

  • Chan-Woo Park [ College of Forest and Environmental Sciences, Kangwon National University ]
  • Song-Yi Han [ College of Forest and Environmental Sciences, Kangwon National University ]
  • Pureun-Narae Seo [ College of Forest and Environmental Sciences, Kangwon National University ]
  • Seung-Hwan Lee [ College of Forest and Environmental Sciences, Kangwon National University ] Corresponding Author

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    강원대학교 산림과학연구소 [Institute of Forest Science Kangwon National University]
  • 설립연도
    1975
  • 분야
    농수해양>임학
  • 소개
    강원대학교부설산림과학연구소(이하 “연구소”라 한다)는 산림에 관한 제반 학술적 연구를 통하여 산림자원의 효용을 밝히고 임업 및 임산업의 발전에 기여함을 목적으로 한다.

간행물

  • 간행물명
    강원대학교 산림과학연구소 학술대회
  • 간기
    부정기
  • 수록기간
    2017~2024
  • 십진분류
    KDC 526 DDC 634

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