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Preparation and Properties of Biodegradable Thermoplastic Starch/Clay Hybrids
Author(s) -
Park HwanMan,
Li Xiucuo,
Jin ChangZhu,
Park ChanYoung,
Cho WonJei,
Ha ChangSik
Publication year - 2002
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/1439-2054(20020801)287:8<553::aid-mame553>3.0.co;2-3
Subject(s) - materials science , organoclay , montmorillonite , intercalation (chemistry) , starch , thermoplastic , silicate , ultimate tensile strength , composite material , chemical engineering , biopolymer , polymer , organic chemistry , chemistry , engineering
Biodegradable thermoplastic starch (TPS)/clay hybrids were prepared by melt intercalation. Three organically modified montmorillonite (MMT) with different ammonium cations and one unmodified Na + MMT (Cloisite Na + ) were used. Cloisite Na + showed the best dispersion in the TPS matrix. It was observed that the TPS/Cloisite Na + hybrid showed an intercalation of TPS in the silicate layer due to the matching of the surface polarity and interactions of the Cloisite Na + and the TPS, which gives higher tensile strength and better barrier properties to water vapor as compared to the other TPS/organoclay hybrids as well as the pristine TPS. It was found that the dynamic mechanical properties of the TPS/clay hybrids were also affected by the polar interactions.