Using a new system of NaOH/thiourea/urea as the solvent to dissolve the cellulose

then filtrating and degassing the solution

last obtaining a clear cellulose solution. Different cellulose films were produced from different coagulations such as H

2

SO

4

HOAC(CH

3

COOH)

H

2

SO

4

/Na

2

SO

4

. The morphology and mechanical property of cellulose films were investigated through SEM

XRD and tensile test. The optimum solidification temperature of cellulose film is 20℃

and different optimal concentration of coagulation bath and the coagulation time are H

2

SO

4

-5%-3min

HOAC-9%-3min

H

2

SO

4

/Na

2

SO

4

-7%/9%-5min. The best coagulation bath and its solidification conditions are H

2

SO

4

/Na

2

SO

4

-7%/9%-5min

20℃. The cellulose film has an uniform density of hole structure

its strength and elongation at break are 166.2MPa-13.5%

respectively.