Abstract:
:With the increasing demand for simple, efficient, environmentally friendly preparation methods to produce cellulose nanofibers for reinforcing a biodegradable film is increased, the role of nanofibers from the pure cellulose produced by bacteria becomes more important. This work characterized bacterial cellulose nanofibers disintegrated using a high shear homogenizer. These nanofibers, in 2.5, 5, and 7.5 mL suspensions, were mixed with PVA gel using ultrasonication. The resulting dried bionanocomposite film was also characterized. Adding nanofiber significantly increases (p ≤ 0.05) on tensile strength, thermal resistance, water vapor impermeability, and moisture resistance of PVA film but not strain at break. Tensile strength, tensile modulus, and elongation at the break of the 7.5 mL nanofiber reinforced film were 37.9 MPa (increased by 38%), 547.8 MPa (increased by 26%), and 10.7% (decreased from 17.2% for pure PVA), respectively compared to pure PVA. Transparency decreases slightly with increased nanofiber content. These properties indicate that this bionanocomposite film has potential in food packaging applications.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Abral H,Kadriadi,Mahardika M,Handayani D,Sugiarti E,Muslimin ANdoi
10.1016/j.ijbiomac.2019.05.178subject
Has Abstractpub_date
2019-08-15 00:00:00pages
591-599eissn
0141-8130issn
1879-0003pii
S0141-8130(19)32115-4journal_volume
135pub_type
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