| 摘要 |
<p>PURPOSE: A polyolefin-group complex microporous membrane having a porous coating layer with high thermal resistance used as a separation film is provided to offer superior melt fracture temperature with high thermal stability at a high temperature. CONSTITUTION: A polyolefin-group complex microporous membrane includes a porous coating layer having high thermal resistance. The permeability of the porous coating layer is 1.5×10^-5 ~ 20.0×10^-5 Darcy. The melt fracture temperature of the porous coating layer is 160 ~ 300°C. The shrinkage ratio of the coating layer is 1 ~ 40 % for 60minutes. The adhesive force of the coating layer is 0.1 ~ 1.0 kgf/cm.</p> |
