Physical Properties of Methyl Cellulose and Hydroxypropylated Methyl Cellulose Films

Methyl cellulose와 hydroxypropylated methyl cellulose 필름의 물성

  • Han, Youn-Jeong (Department of Food Science and Nutrition, The Catholic University of Korea) ;
  • Kim, Suk-Shin (Department of Food Science and Nutrition, The Catholic University of Korea)
  • 한윤정 (가톨릭대학교 식품영양학과) ;
  • 김석신 (가톨릭대학교 식품영양학과)
  • Published : 2007.10.31

Abstract

In this study, we prepared methyl cellulose (MC) and hydroxypropylated methyl cellulose (HPMC) films with polyethylene glycol (PEG) or polyphosphates as elongation enhancing materials, and with lipid layers as moisture barrier materials. We then determined their physical properties and compared the data with target physical properties such as a tensile property of 13.0 MPa, elongation of 130%, and water vapor permeability of $3.47{\times}10^{-2}ng{\cdot}m/m^2{\cdot}s{\cdot}Pa$. The PEG and polyphosphates were required for enhancing elongation, while the coating method seemed better than the emulsion method when applying the lipid layers. With respect to elongation, the MC films were better than the HPMC films.

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