| 초록 |
A series of linear organic-inorganic hybrid polyurethane with different PPG(polypropylene glycol) / PDMS(polydimethyl siloxane) ratio were synthesized. The synthesis was monitored by FT-IR. Physical properties such as tensile strength, pendulum hardness, pencil hardness and adhesion strength were measured. To evaluate the effect of PDMS contents on surface property, surface free energy was measured with a goniometer. With increasing polydimethyl siloxane contents, surface free energy of cured film was decreased. |
