| 摘要 |
<p>PURPOSE: A polyalkylene glycol polylactide film has excellent flexibility, improved processability, and prevents the leakage of unreacted polyalkylene glycol. CONSTITUTION: A polyalkylene glycol polylactide film includes polyalkylene glycol, chain extender, and polylactide. The content in the polyalkylene glycol in a final film is 5-40 wt%, the average number of the molecular weight of a film is 80,000-500,000, and the elasticity is 250 kgf/mm^2 or less. A manufacturing method of the polyalkylene glycol polylactide film comprises a step of manufacturing a polyalkylene glycol polylactide composition by compounding polyalkylene glycol and polylactide with a chain extender; and a step of manufacturing a film by monoaxially or biaxially elongating the composition.</p> |
