화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.35, No.2, 594-601, February, 2018
DOI10.1007/s11814-017-0304-x  Export Citation
Physicochemical analysis of linear low-density polyethylene composite films containing chemically treated rice husk
Ki Seob Hwang, Hyuk Jun Kwon1, and Jun-Young Lee†
  • Korea Institute of Industrial Technology, 89 Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31056, Korea
  • 1Department of Chemical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemoon-gu, Seoul 03722, Korea
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A study was conducted to determine the appropriate surface treatment for rice husks (RH) in polymer composite film to improve the physical properties relative to those of untreated RH/linear low-density polyethylene (LLDPE) film. Pulverized RH was treated with NaOH (RH-m) and acetic acid (RH-ac) to prepare composite films with LLDPE resin. The treated RH showed typical mercerization and acetylation, as confirmed by spectroscopic and thermal analysis methods. The RH-m sample was mercerized, allowing decomposition of hemicellulose and partially amorphous cellulose. The RH-ac sample was processed via acetylation inducing partial lignin decomposition. Fieldemission scanning electron microscopy showed smaller gaps at the RH/LLDPE interface for RH-m and RH-ac compared to that with untreated RH, implying increased composite compatibility. RH-m in particular showed superior tensile strength (15.85 N/mm2), elongation (884%), Young’s modulus (60.01 N/mm2), and tear strength (7.71N/mm2) compared to untreated RH and RH-ac.
Keywords:Rice Husks;Physicochemical Analysis;Rice Husk/LLDPE Composite Film;Mercerizing;Acetylation
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