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Preparation and characterization of konjac glucomannan and sodium carboxymethylcellulose blend films
Author(s) -
Xiao Chaobo,
Lu Yongshang,
Liu Hongjuan,
Zhang Lina
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20010404)80:1<26::aid-app1070>3.0.co;2-b
Subject(s) - thermogravimetric analysis , materials science , ultimate tensile strength , thermal stability , aqueous solution , glucomannan , scanning electron microscope , chemical engineering , fourier transform infrared spectroscopy , polymer , composite material , polymer chemistry , chemistry , organic chemistry , biochemistry , engineering
The novel blend films of konjac glucomannan (KGM) and sodium carboxymethylcellulose (NaCMC) were prepared by casting the mixed polymer aqueous solutions. The physical properties of the blend films from konjac glucomannan and sodium carboxymethylcellulose were investigated by using FT‐infrared (FTIR), wide‐angle X‐ray diffraction (WAXD), differential thermal analysis (DTA), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and measurements of mechanical properties. The experimental results showed that the occurrence of the interactions between KGM and NaCMC molecular chains through hydrogen bond formation, and the physical properties of the films largely depend on the blending ratio. The thermal stability, mechanical properties of both tensile strength, and elongation at break of the blend films were improved by blending KGM with NaCMC. The surface morphology of the films observed by SEM was consistent with the results mentioned above. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 26–31, 2001