31-08-2017, 11:01 AM
combining the current gas assisted nanoparticle, hot printing molding technology, electroforming technology and self-designed heatable electromagnetic plate for uniform control and progressive pressure technology, this study used direct nickel electromagnetic molds to reproduce micro structures, technology and the application of more mature micro nanoimprint. This study used for the first time the gas-assisted hot-embossing method of nanoparticles to replicate microlenses structures of original silicon molds in PC, in order to obtain complementary structural patterns. This PC film with microlens structures is molded into nickel molds by electroforming. This nickel mold was used as the mold for magnetic engraving to print hot plastic PMMA. The result showed that through nanoparticles of hot gas assisted casting, molding and molding component PDMS magnetic molding, high cost molds and complicated production process can be massively replicated, and replication accuracy is good. The hot gas filling film PDMS and the surface of the base materials can achieve uniform pressure and conforming contact, thereby significantly improving the effective printing area and the printing capacity. Through electroforming, the casting time of magnetic nickel molds can be shortened and costs can be effectively reduced. In addition, electromagnetic plate was used to uniformly control the resistance to direct printing under hot pressure, which is an advantage of the micro-structure production process.