Preparation and Characterization of Polyurethane/Nanocopper Composites and Their Application in Intrauterine Devices

Table 1

Composition, contact angle, and water sorption of PU/NC nanocomposites.

Samples	PEG	PTMG	MDI	BDO	Copper	Contact angle (°)	Water sorption (%)
PU	40	60	66.7	6.84	0	88.3±0.5	3.7±0.2
P0	0	100	66.7	6.84	5	89.9±0.4	1.1±0.1
P10	10	90	66.7	6.84	5	84.5±0.7	2.7±0.1
P20	20	80	66.7	6.84	5	80.1±0.8	5.0±0.1
P30	30	70	66.7	6.84	5	79.5±0.5	5.4±0.1
P40	40	60	66.7	6.84	5	77.7±1.1	5.8±0.2