|
For the transmission frequency of electron in electric circuit system has been risen highly, and to fit the temperature promote in applied circumstances. The resist heat property in polymer stuff of traditional circuit board has been undergo serious ordeal. In this study, the polyimide are prepared by in-situ polymerization of three monomer reactants: monoisopropyl ester of 5-norbomene-2,3-dicarboxylic acid (NE) 3,4'-oxydianiline (3,4'-ODA)diisopropyl ester of 3,3',4,4'-benzophenonetetracarboxylic acid (BDTE) , and attach with the copper foil to manufacture two-layer printed circuit board without adhesive. By testing the laminate ability in heat, chemical, and examining its dielectric constant and dissipation factor, to evaluate the practicability of this kind circuit board. The experiment result reveals the peel strength between resin and copper foil has good presentation. It also has excellent performance in resist heat property, resist chemical property and insulation property, so the type of polyimide resin can be broadly applied in printed circuit board. On account of it can improve the effect of the traditional circuit board by a wide margin, so it has a great value to develop this research.
|