| 초록 |
The colorless polyimide film with dendrite zinc oxide as a filler was synthesized. The morphology of dendrite zinc oxide was investigated using scanning electron microscopy (SEM). The morphology of dendrite zinc oxide had a hollow cylindrical shape. This created free volume in the polymer matrix, which allowed to lower the dielectric constant of the polyimide/dendrite zinc oxide composite film. Addition of 3% dendrite zinc oxide in polyimide film maintained the total transmittance of ~90%, yellow index of 0.25, and the dielectric constant as low as ~2.05. The thermal properties and optical properties of polyimide/dendrite zinc oxide composite films were also investigated by differential scanning calorimetric (DSC), thermal gravimetric analysis (TGA) and haze meter. |
