TABLE 2.

Element proportion and chemical bond for the starch/CMC composite films.

Sample	C1s (%)	O1s (%)	C-C (%)	C-O (%)	C=C (%)
CS	59.75	40.22	24.84	62.11	13.04
CS/CMC-0.2	66.90	31.13	49.50	45.05	5.45
CS/CMC-0.6	70.89	26.56	43.19	46.95	9.86
CS/CMC-1.0	62.50	36.79	26.99	61.35	11.66
CA	62.20	37.78	34.08	55.87	10.06
CA/CMC-0.2	60.25	38.65	25.81	64.52	9.68
CA/CMC-0.6	65.28	31.69	56.81	30.68	12.50
CA/CMC-1.0	64.32	35.11	40.39	49.26	10.34