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1. WO2019031111 - PREPREG LAMINATE, METHOD FOR MANUFACTURING FIBER-REINFORCED PLASTIC USING PREPREG LAMINATE, AND FIBER-REINFORCED PLASTIC

Publication Number WO/2019/031111
Publication Date 14.02.2019
International Application No. PCT/JP2018/025198
International Filing Date 03.07.2018
IPC
C08J 5/24 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
24Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
B32B 5/28 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non-homogeneity or physical structure of a layer
22characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous
24one layer being a fibrous or filamentary layer
28impregnated with or embedded in a plastic substance
CPC
B29C 70/081
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
06Fibrous reinforcements only
08comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
081Combinations of fibres of continuous or substantial length and short fibres
B29C 70/345
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
34and shaping or impregnating by compression ; , i.e. combined with compressing after the lay-up operation
345using matched moulds
B32B 2250/05
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2250Layers arrangement
055 or more layers
B32B 2250/20
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2250Layers arrangement
20All layers being fibrous or filamentary
B32B 2260/021
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2260Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
02Composition of the impregnated, bonded or embedded layer
021Fibrous or filamentary layer
B32B 2260/046
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2260Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
04Impregnation, embedding, or binder material
046Synthetic resin
Applicants
  • 東レ株式会社 TORAY INDUSTRIES, INC. [JP]/[JP]
Inventors
  • 足立健太郎 ADACHI, Kentaro
  • 藤田雄三 FUJITA, Yuzo
  • 唐木琢也 KARAKI, Takuya
Priority Data
2017-15496010.08.2017JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) PREPREG LAMINATE, METHOD FOR MANUFACTURING FIBER-REINFORCED PLASTIC USING PREPREG LAMINATE, AND FIBER-REINFORCED PLASTIC
(FR) STRATIFIÉ DE PRÉIMPRÉGNÉ, PROCÉDÉ DE FABRICATION DE PLASTIQUE RENFORCÉ PAR DES FIBRES À L'AIDE D'UN STRATIFIÉ DE PRÉIMPRÉGNÉ ET PLASTIQUE RENFORCÉ PAR DES FIBRES
(JA) プリプレグ積層体、プリプレグ積層体を用いた繊維強化プラスチックの製造方法及び繊維強化プラスチック
Abstract
(EN) A prepreg laminate having a woven fabric prepreg on at least one surface layer and having a discontinuous fiber prepreg, wherein the woven fabric prepreg includes reinforced fibers R1 with a woven structure and a thermosetting resin A, the discontinuous fiber prepreg includes discontinuous reinforced fibers R2 oriented in one direction and a thermosetting resin B, and the thermosetting resin A and thermosetting resin B satisfy a calorific value condition. Calorific value condition: When temperatures of the thermosetting resin A and thermosetting resin B are each raised by means of a differential scanning calorimetry analyzer to 130°C in a nitrogen atmosphere at 50 to 700°C/min and kept at 130°C until the end of a thermosetting reaction, Tb-Ta>30, where Ta(s) is the time until the calorific value of the thermosetting resin A reaches 50% of the total calorific value of the thermosetting resin A and Tb(s) is the time until the calorific value of the thermosetting resin B reaches 50% of the total calorific value of the thermosetting resin B. Based on the above, provided are the prepreg laminate exhibiting less irregularity in the texture of the woven structure during forming even when combining the woven fabric prepreg and discontinuous fiber prepreg, a fiber-reinforced plastic that has a pleasing appearance and is suitable as an external panel member, and a method for manufacturing the fiber-reinforced plastic.
(FR) L'invention concerne un stratifié de préimprégné présentant un préimprégné de tissu tissé sur au moins une couche de surface et présentant un préimprégné de fibres discontinues, le préimprégné de tissu tissé comprenant des fibres renforcées R1 dotées d'une structure tissée et une résine thermodurcissable A, le préimprégné de fibres discontinues comprenant des fibres renforcées discontinues R2 orientées dans une direction et une résine thermodurcissable B et la résine thermodurcissable A et la résine thermodurcissable B satisfaisant à une condition de pouvoir calorifique. Condition de pouvoir calorifique : lorsque les températures de la résine thermodurcissable A et de la résine thermodurcissable B sont chacune élevées au moyen d'un analyseur de calorimétrie différentielle à balayage à 130°C dans une atmosphère d'azote à 50 jusqu'à 700°C/min et maintenues à 130°C jusqu'à la fin d'une réaction de thermodurcissement, Tb-Ta > 30, où Ta (s) est le temps jusqu'à ce que le pouvoir calorifique de la résine thermodurcissable A atteigne 50 % du pouvoir calorifique total de la résine thermodurcissable A et Tb (s) est le temps jusqu'à ce que le pouvoir calorifique de la résine thermodurcissable B atteigne 50 % du pouvoir calorifique total de la résine thermodurcissable B. Sur la base de ce qui précède, l'invention concerne un stratifié de préimprégnés présentant moins d'irrégularité dans la texture de la structure tissée pendant la formation, même lors de la combinaison du préimprégné de tissu tissé et du préimprégné de fibres discontinues, une matière plastique renforcée par des fibres présentant un aspect agréable et convenant en tant qu'élément de panneau externe et un procédé de fabrication de la matière plastique renforcée par des fibres.
(JA) 少なくとも一方の表面層に織物プリプレグを有し、かつ不連続繊維プリプレグを有するプリプレグ積層体であって、 前記織物プリプレグは、織り構造を有する強化繊維Rと熱硬化性樹脂Aとを含み、 前記不連続繊維プリプレグは、一方向に配向された不連続強化繊維Rと熱硬化性樹脂Bとを含み、 前記熱硬化性樹脂Aと前記熱硬化性樹脂Bとが下記発熱量条件を満たすプリプレグ積層体。 発熱量条件:前記熱硬化性樹脂Aおよび前記熱硬化性樹脂Bのそれぞれを、示差走査熱量分析計により窒素雰囲気中で50℃から700℃/minで130℃まで昇温し、熱硬化反応が終了するまで130℃に保持したとき、Tb-Ta>30 ここで、 Ta(s):熱硬化性樹脂Aの発熱量が熱硬化性樹脂Aの総発熱量の50%に達するまでの時間 Tb(s):熱硬化性樹脂Bの発熱量が熱硬化性樹脂Bの総発熱量の50%に達するまでの時間 織物プリプレグと不連続繊維プリプレグを組み合わせても成形時の織り構造の目乱れが少ないプリプレグ積層体、外観品位がよく外板部材として適した繊維強化プラスチック及びかかる繊維強化プラスチックの製造方法を提供できる。
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