LI Pin-yi, WANG Jian-qi, SHEN You-zhen. AN INVESTIGATION OF SURFACE AND INTERFACE FREE ENERGY OF BIOMEDICAL POLYETHER POLYURETHANES BY CONTACT ANGLE TECHNIQUE[J]. Acta Polymerica Sinica, 1991,(3):356-360.
LI Pin-yi, WANG Jian-qi, SHEN You-zhen. AN INVESTIGATION OF SURFACE AND INTERFACE FREE ENERGY OF BIOMEDICAL POLYETHER POLYURETHANES BY CONTACT ANGLE TECHNIQUE[J]. Acta Polymerica Sinica, 1991,(3):356-360.DOI:
The surface properties of segmented polyether polyurethanes (SPEU) were studied by contact angle technique in this paper. Surface contact angle is measured by Kealble method and interfacial free energy is studed by the air/octane bubble method. It is revealed that "soft" Polyether PTMG and PEG have different effects on the air-facing surface and water-facing surface. The segment PEG component can decrease SPEU-water interfacial energy effectively and change the friction ratio vp/vd of surface energy of SPEUs.