• Title, Summary, Keyword: hydroxypropylated methyl cellulose (HPMC)

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Physical Properties of Methyl Cellulose and Hydroxypropylated Methyl Cellulose Films (Methyl cellulose와 hydroxypropylated methyl cellulose 필름의 물성)

  • Han, Youn-Jeong;Kim, Suk-Shin
    • Korean Journal of Food Science and Technology
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    • v.39 no.5
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    • pp.521-526
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    • 2007
  • 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.