Product Features

Cellulose acetate is a biobased and biodegradable material. The cellulose acetate films exhibit excellent transparency, gloss, mechanical strength , anti-fogging and static dissipative properties. Currently the commercialized cellulose acetate films are limited and mainly are made by solvent casting processed. So far the cellulose acetate film products made by thermoplastic granules and melt extrusion processes is rarely found in the market.
CP films (CPF) are made by Hoylard’s in-house-made Celluplas^TM granules in conjunction with the general melt extrusion casting processes. CPF complies with the food contacting safety (EU No. 10/2011) and biodegradability (ISO14855-1) standards. Comparing with competitive solvent casting films, CPF shows comparable appearance and mechanical properties but superior in oxygen and water vapor barrier.  Industrial production for melt casting CPF has been developed.

Product Specifications

The following table shows the comparison between the cellulose acetate films made by solvent and melt casting processes. Accordingly the melt casting film CPF is superior in elongation, surface tension and WVTR and the others criteria are comparable to the solvent casting counterpart.

Test Items		Test Results
		Solvent casting films	CPF
Thickness（mm）		0.02	0.03
Tensile Strength（N/mm-2）	ASTM D882	80	78
Elongation at break(%)	ASTM D882	25-45	50-68
Haze(％）	ASTM D1003	0.7	0.9
Heating shrinkage（%）	ASTM D1204	1-1.5	1-1.5
Surface tension（dyn.cm-1）	ASTM D2578	38-42	48
Friction Coefficient	ASTM D1894	0.4-0.65	0.46-0.56
Water vapor transmission rate （WVTR, g/m2.day.atm）	ASTM F1249	1,890	42.8