Table 2.

Some parameters of the membrane preparation process: porosity and crystallinity degree of the obtained membranes.

Sample	Swelling Time, min	Swelling Degree (Q)	Volume Fraction of O-xylene in Swollen Film	Volume Porosity (P)	Mass Fraction of UHMWPE in the Swollen Film	Crystallinity Degree (α)
M1	20	1.7	0.630	0.120	0.380	0.7
M2	35	2.4	0.706	0.275	0.303	0.741
M3	45	4	0.800	0.458	0.207	0.867
M4	60	6	0.857	0.553	0.148	0.87
M5	100	11	0.917	0.648	0.087	0.89