Table 2. Thickness, tensile properties, and water vapor permeability of the composite films

Films	Thickness (μm)	TS (MPa)¹⁾	EB (%)²⁾	EM (GPa)³⁾	WVP (10⁻⁹ g · m/m² · Pa · s)⁴⁾
Neat carrageenan	48.4±1.5^b5)	49.6±6.2^a	2.37±0.12^c	3.40±0.10^a	1.66±0.00^a
Car-ZnONPs^ZA	52.8±0.8^a	48.7±5.9^a	3.30±0.26^b	3.43±0.06^a	1.51±0.01^a
Car-ZnONPs^ZC	53.4±1.1^a	45.6±3.4^ab	4.23±0.50^a	3.27±0.25^a	1.59±0.01^a
Car-ZnONPs^ZN	54.4±1.1^a	38.0±3.8^b	4.26±0.64^a	3.33±0.31^a	1.54±0.01^a

Tensil strength.
Elongation at break.
Elastic modulus.
Water vapor permeability.
All values are mean±SD (n=3). Means with different superscript letters in the same column are statistically different at p<0.05 by Duncan’s multiple range test.