절입 프리프레그 및 섬유 강화 플라스틱

• Main Authors: ADACHI KENTARO, NAITO YUTA, MATSUTANI HIROAKI
• Format: Patent
• Language: Korean
• Published: 31.03.2022
• 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; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; 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

안정적으로 원하는 부형성을 얻을 수 있는 절입 프리프레그를 제공하는 것을 과제로 한다. 일방향으로 배향한 강화 섬유와, 매트릭스 수지를 포함함과 함께, 강화 섬유를 분단하는 복수의 절입이 형성되어 이루어지는 절입 영역을 갖는 절입 프리프레그이며, 절입 영역에 있어서, 섬유 방향의 투영 길이가 대략 동일한 복수의 절입이 섬유 방향으로 대략 일정 간격으로 배치된 절입열이, 복수열 형성되고, 임의의 하나의 절입열의 양측에 존재하는 2열의 절입열의, 섬유 직교 방향의 간격을 L1, 하나의 절입열의 섬유 방향의 투영 길이를 L2로 한 경우에, －1.0<L1/L2<0.5인 절입 프리프레그. The object is to provide an incised prepreg having desired formability stably. The incised prepreg contains unidirectionally oriented reinforcing fibers and matrix resin and has an incised region containing a plurality of incisions made to divide reinforcing fibers, wherein the incised region includes a plurality of incision rows, each containing a plurality of incisions having nearly equal fiber-directionally projected lengths and aligned at substantially constant intervals in the fiber direction and wherein the distance L1, measured at right angles to the fiber direction, between two incision rows located on either side of an arbitrarily selected incision row and the fiber-directionally projected length L2 of the latter incision row satisfy the following relation: -1.0 < L1/L2 < 0.5.