Liquid crystal polymer film as well as preparation method and application thereof

• Main Authors: JIANG SUJUN, CHEN PINGXU, XIAO ZHONGPENG, YE NANBIAO, TANG DAHANG, HUANG XIANBO
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2024
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PRINTED CIRCUITS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The invention discloses a liquid crystal polymer film as well as a preparation method and application thereof, and relates to the technical field of liquid crystal polymers. The surface roughness of the liquid crystal polymer film provided by the invention is 350-850 nm; the high-temperature storage modulus G'is 10000-25000Pa, and by controlling the high-temperature storage modulus of the LCP film and the surface roughness of the film, when the LCP film is subjected to copper-clad lamination, the film has certain deformability, and meanwhile, the'rivet 'effect when the low-roughness copper foil and the LCP film are laminated is exerted to the greatest extent, so that the binding force between the film and the copper foil is increased, and high copper-clad stripping force is achieved; the peeling strength is 0.7 N/mm or above, the industrial standard is met, and the adhesive can be suitable for the fields of flexible circuit boards and the like. 本发明公开了一种液晶聚合物薄膜及其制备方法和应用，涉及液晶聚合物技术领域。本发明的液晶聚合物薄膜表面粗糙度为350nm-850nm