프리프레그의 제조 방법 및 섬유 강화 복합 재료의 제조 방법

• Main Authors: AOKI JUNICHI, YAMASHITA TAKAAKI, NISHINO SO, OCHI TAKASHI, ENZAKI SATOSHI
• Format: Patent
• Language: Korean
• Published: 12.11.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

본 발명은, 프리프레그의 제조에 있어서, 강화 섬유의 배열성, 직진성을 양호하게 유지하고, 또한 어떤 수지라도 고속으로 안정적으로 도포할 수 있는 기술을 제공하고, 생산 효율을 향상시키는 것을 과제로 하고, 용융된 수지를 면형으로 토출하고, 형성된 수지막(2)을 연속하여 반송되는 강화 섬유 시트(1a) 상에 도포하는 프리프레그의 제조 방법에 있어서, 강화 섬유 시트(1a)가 실질적으로 수평 방향으로 반송되고, 수지의 토출 방향과 강화 섬유 시트(1a) 반송 방향이 이루는 각도가 80° 이하로 프리프레그를 제조하는 것을 그 본래의 취지로 한다. A problem addressed by the present invention is to provide a technology in production of a prepreg and to enhance the production efficiency, in which the technology allows the arrangement property and rectilinearity of reinforcing fibers to be well maintained and allows any resin to be applied stably at a high speed. A main object of the present invention is to produce a prepreg by a method of producing a prepreg, in which the method includes: discharging a molten resin in planar form to form a resin film, and applying the resin film 2 onto a reinforcing fiber sheet 1a conveyed continuously, wherein the reinforcing fiber sheet 1a is conveyed substantially in the horizontal direction, and wherein an angle made between the discharge direction of the resin and the conveyance direction of the reinforcing fiber sheet 1a is 80°or less.