FABRIKASI DAN KARAKTERISASI COATING KERTAS DENGAN KANJI SINGKONG DAN TANAH LEMPUNG MONTMORILLONITE SEBAGAI MATERIAL KEMASAN RAMAH LINGKUNGAN

S, IMAM SYAFEI JAFAR (2017) FABRIKASI DAN KARAKTERISASI COATING KERTAS DENGAN KANJI SINGKONG DAN TANAH LEMPUNG MONTMORILLONITE SEBAGAI MATERIAL KEMASAN RAMAH LINGKUNGAN. Other thesis, Universitas Sebelas Maret.

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    Abstract

    The fabrication and characterization of paper coating based on starch and clay as green packaging materials has been done. The purpose of this study was to determine the starch processing and mixing with clay, so packaging paper can be generated,to find out the addition effect of clay against starch properties including water vapour and oil barrier properties, and the structure of the starch/clay composite. Starch and clay coatings were prepare by coating method on the surface of the paper. The concentration of clay 0%, 10%, 15%, 23%, 30%, 40% dan 50% w/w. The composite properties were characterized as water vapour barrier properties using Payne cup method (water vapour transmitter rate-WVTR), oil barrier properties and X-Ray diffraction (XRD). The WVTR results showed that the addition of clay improved water vapour barrier properties and the most optimal improvement was obtained at clay concentration in the range of 10 – 23 % w/w. However, the opposite trend was observed for oil barrier properties, the value of the oil barrier properties decrease with increasing concentration of clay. XRD results showed that starch entered clay gallery and formed intercalated bilayer structure both at clay concentration of 5 % and 23% w/w. The clay layer of 23% w/w was better ordered that 5% w/w in starch matric. Thus, it supported better barrier properties of clay/starch 23% than that of 5% w/w. Keywords: starch, clay, barrier properties, composite structure.

    Item Type: Thesis (Other)
    Subjects: Q Science > QC Physics
    Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam
    Fakultas Matematika dan Ilmu Pengetahuan Alam > Fisika
    Depositing User: faizah sarah yasarah
    Date Deposited: 25 Apr 2017 21:54
    Last Modified: 25 Apr 2017 21:54
    URI: https://eprints.uns.ac.id/id/eprint/33638

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