| 초록 |
Nowadays the demolding problem is having attention due to the increase of demand for smaller, more complex, products in various polymer processing fields. Traditionally, efforts have been made to reduce friction between mold and product to facilitate separation and this has been focused on reducing mold roughness in mechanical and physical ways. However, conventional methods such as CNC milling was limited and needs for various releasing agent treatment was increased. Unfortunately, because the effect of releasing agent is not permanent, stopping production lines to coat molds with agents is now significantly impact productivity. So, in this study, we conducted an experiment that gives permanent demolding ability to metal plates by growing different types of polymers to reduce surface energy. Later, by measuring lap shear stress using metal plates with polymer growth, it was intended to quantitatively measure and analyze the occurrence of release capability on metal plates. |
