High-Performance Biocomposite Polyvinyl Alcohol (PVA) Films Modified with Cellulose Nanocrystals (CNCs), Tannic Acid (TA), and Chitosan (CS) for Food Packaging

Table 1

The effect of different ratios (PVA/CNCs/TA/CS) on the tensile strength and elongation at break of PVA films.

Films	Tensile strength (MPa)	Elongation at break (%)
PVA	^a	^a
PVA/1%CNC	^ab	^b
PVA/3%CNC	^b	^c
PVA/5%CNC	^b	^d
PVA/7%CNC	^b	^d
PVA/9%CNC	^ab	^c
PVA/5%CNC/2%TA	^b	^e
PVA/5%CNC/4%TA	^bc	^f
PVA/5%CNC/6%TA	^c	^f
PVA/5%CNC/8%TA	^c	^b
PVA/5%CNC/10%TA	^c	^g
PVA/5%CNC/8%TA/5%CS	^b	^a
PVA/5%CNC/8%TA/10%CS	^b	^f
PVA/5%CNC/8%TA/20%CS	^b	^g

Note: means with the same letter in the same column are not significantly different at the 0.05 probability level.