Development and characterization of nano‐crystalline cellulose incorporated poly(lactic acid) composite films

Development of nano‐cellulose has fascinated a substantial attention for last few decades because of their exceptional and potentially useful features. Herein, nano‐crystalline cellulose has successfully been prepared from local cotton yarn via acid hydrolysis. Both X‐ray diffraction and scanning el...

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Bibliographic Details
Published in:Materialwissenschaft und Werkstofftechnik 2019-01, Vol.50 (1), p.64-73
Main Authors: Raza, Z.A., Aslam, M., Azeem, A., Maqsood, H.S.
Format: Article
Language:English
Subjects:
Acids
Cellulose
Chain mobility
Cold crystallization
Cotton
Crystal structure
Crystalline cellulose
Crystallinity
Crystallization
Glass transition temperature
Hydrolysis
Ions
Mechanical analysis
Melt temperature
poly(lactic acid)
Polylactic acid
polymer composites
polymer film
polymere Verbundwerkstoffe
Polymerfolien
Polymilchsäure
Scanning electron microscopy
thermal properties
thermische Eigenschaften
X-ray diffraction
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Summary:Development of nano‐cellulose has fascinated a substantial attention for last few decades because of their exceptional and potentially useful features. Herein, nano‐crystalline cellulose has successfully been prepared from local cotton yarn via acid hydrolysis. Both X‐ray diffraction and scanning electron microscopy showed improvement in crystallinity of nano‐crystalline cellulose on acid hydrolysis of cotton yarn. The prepared nano‐crystalline cellulose has been used for the fabrication of poly(lactic acid) composite films using solution casting approach. The prepared composite films were characterized using advanced analytical techniques. The differential scanning calorimetry analysis, moreover, showed that on incorporating nano‐crystalline cellulose in the poly(lactic acid) matrix, glass transition temperature increased; whereas, melting temperature and cold crystallization temperature decreased. The decreasing value of crystallization temperature indicated an enhancement in chain mobility of composite films. The mechanical analysis showed that the composite films were stronger and more flexible than the pure poly(lactic acid) films.
ISSN:0933-5137
1521-4052
DOI:10.1002/mawe.201800081