JP5950149B2 - A method for producing a fiber-reinforced resin structure. - Google Patents
A method for producing a fiber-reinforced resin structure. Download PDFInfo
- Publication number
- JP5950149B2 JP5950149B2 JP2011213974A JP2011213974A JP5950149B2 JP 5950149 B2 JP5950149 B2 JP 5950149B2 JP 2011213974 A JP2011213974 A JP 2011213974A JP 2011213974 A JP2011213974 A JP 2011213974A JP 5950149 B2 JP5950149 B2 JP 5950149B2
- Authority
- JP
- Japan
- Prior art keywords
- prepreg
- smc
- resin composition
- fiber
- thermosetting resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Description
本発明は、繊維強化樹脂製構造体の製造方法に関する。 The present invention relates to a method for manufacturing a fiber-reinforced resin structure.
繊維強化樹脂製の構造体は、高強度かつ高剛性であるという点から、スポーツやレジャー用途、航空機等の産業用途といった幅広い分野で利用されている。また、このような繊維強化樹脂製構造体は、圧縮成形により製造する方法が広く行われている。成形材料としては、強化繊維に熱硬化性樹脂組成物を含浸したプリプレグや、シートモールディングコンパウンド（以下、ＳＭＣという）等が用いられている。 A structure made of fiber reinforced resin is used in a wide range of fields such as sports and leisure applications, and industrial applications such as aircraft, because it has high strength and high rigidity. In addition, such a fiber-reinforced resin structure is widely manufactured by compression molding. As the molding material, a prepreg in which a reinforcing fiber is impregnated with a thermosetting resin composition, a sheet molding compound (hereinafter referred to as SMC), or the like is used.
ＳＭＣは繊維長が短いため、一般にプリプレグに比べて繊維強化樹脂製構造体の強度が低くなるものの、凸条等の複雑な形状を形成するのに好適である。ＳＭＣを用いた繊維強化樹脂製構造体の製造では、例えば、図２に示すような、上型２１と、凸条を形成する凸条用キャビティ２３、２４が設けられた下型２２とを備える圧縮成形用金型２０を用いる。まず、ＳＭＣをそれぞれの凸条用キャビティ２３、２４に充填する量ごとに細かく切断し、それらをそれぞれの凸条用キャビティ２３、２４の部分に必要に応じて積層して配置する。その後、そのＳＭＣ上に基板を形成するプリプレグをさらに配置し、圧縮成形用金型２０内でＳＭＣとプリプレグとを加熱、加圧して圧縮成形する（たとえば特許文献１）。 Since SMC has a short fiber length, the strength of a fiber reinforced resin structure is generally lower than that of a prepreg, but it is suitable for forming a complicated shape such as a ridge. In the manufacture of a fiber reinforced resin structure using SMC, for example, as shown in FIG. 2, an upper die 21 and a lower die 22 provided with ridge cavities 23 and 24 for forming ridges are provided. A compression mold 20 is used. First, the SMC is finely cut for each amount to fill the respective ridge cavities 23 and 24, and these are stacked and disposed in the portions of the respective ridge cavities 23 and 24 as necessary. Thereafter, a prepreg for forming a substrate is further arranged on the SMC, and the SMC and the prepreg are heated and pressed in the compression molding die 20 for compression molding (for example, Patent Document 1).
しかし、特許文献１に記載されたような方法ではＳＭＣで形成されている凸条部分にプリプレグの樹脂が流入し、表面に薄膜を形成して外観が悪くなってしまう。また、薄膜が粉状となり、精密機器などの電気部品にショートを生じる懸念があった。 However, in the method as described in Patent Document 1, the resin of the prepreg flows into the ridge portion formed of SMC, and a thin film is formed on the surface to deteriorate the appearance. In addition, there is a concern that the thin film becomes powdery and short-circuits in electrical parts such as precision instruments.
そこで、本発明では、２つ以上のプリプレグから形成される繊維強化樹脂製構造体を高い生産効率で安定して、高品質に製造する方法提供することを目的とする。 Therefore, an object of the present invention is to provide a method for producing a fiber-reinforced resin structure formed from two or more prepregs stably with high production efficiency and with high quality.
本発明の繊維強化樹脂製構造体の製造方法は、強化繊維と熱硬化性樹脂組成物とを含むプリプレグ（Ａ）の表面の一部に、
強化繊維と熱硬化性樹脂組成物とを含む、凸条を形成するＳＭＣ（Ｂ）を凸条を形成する部位に配置して、複合材料を一体成形する複合材料の製造方法において、
ＣＴａを、前記プリプレグ（Ａ）のキュアタイム、ＣＴｂを、前記ＳＭＣ（Ｂ）のキュアタイムとしたとき、
次の式（１）を満たすプリプレグ（Ａ）、ＳＭＣ（Ｂ）を用いる複合材料の製造方法。ただし、前記プリプレグ（Ａ）に含まれる熱硬化性樹脂組成物と前記ＳＭＣ（Ｂ）に含まれる熱硬化性樹脂組成物が同一である場合を除く。
０．８≦（ＣＴｂ／ＣＴａ）≦１．３・・・・・・（１）
In the method for producing a fiber-reinforced resin structure of the present invention, a part of the surface of the prepreg (A) containing the reinforcing fiber and the thermosetting resin composition,
In the method for producing a composite material, comprising a reinforcing fiber and a thermosetting resin composition, SMC (B) for forming a ridge is disposed at a portion for forming the ridge, and the composite material is integrally molded.
When CTa is the cure time of the prepreg (A) and CTb is the cure time of the SMC (B),
The manufacturing method of the composite material using the prepreg (A) and SMC (B) which satisfy | fill following formula (1). However, the case where the thermosetting resin composition contained in the prepreg (A) and the thermosetting resin composition contained in the SMC (B) are the same is excluded.
0.8 ≦ (CTb / CTa) ≦ 1.3 (1)
本発明の製造方法によれば、強化繊維と熱硬化性樹脂組成物とを含むプリプレグ（Ａ）の表面の一部に、強化繊維と熱硬化性樹脂組成物とを含む、凸条を形成するＳＭＣ（Ｂ）を凸条を形成する部位に配置して、複合材料を一体成形する複合材料の製造する際に生じる、薄膜の形成を防止することで、高強度で品質の良好な、繊維強化樹脂製構造体を高い生産効率で安定して製造できる。 According to the production method of the present invention, the ridges containing the reinforcing fibers and the thermosetting resin composition are formed on a part of the surface of the prepreg (A) containing the reinforcing fibers and the thermosetting resin composition. SMC (B) is placed in the area where the ridges are formed to prevent the formation of a thin film that occurs when producing a composite material that integrally molds the composite material, thereby strengthening the fiber with high strength and good quality. Resin structures can be manufactured stably with high production efficiency.
以下、本発明について、詳細に説明する。
「繊維強化樹脂含浸体」
本発明の製造方法に使用できる繊維強化樹脂含浸体は、強化繊維に熱硬化性樹脂組成物が含浸されてなる繊維強化複合材料である。かかる繊維強化複合材料としては、たとえば、実質的に連続した強化繊維に熱硬化性樹脂組成物を含浸したもの（プリプレグ）、短繊維状の強化繊維に熱硬化性樹脂組成物を含浸したもの（ＳＭＣ）が挙げられる。なかでも、繊維強化樹脂製構造体の強度向上に優れることから、プリプレグが好ましい。プリプレグの形態は、特に限定されず、たとえば、強化繊維を一方向に引き揃えたＵＤプリプレグ、強化繊維を製織した織物プリプレグ等が挙げられる。また、繊維強化樹脂製構造体の意匠性を高めるために、繊維強化樹脂製構造体の表面は織物プリプレグとし、繊維強化樹脂製構造体の内部はＵＤプリプレグとする等、複数のプリプレグを併用することもできる。一方、ＳＭＣは繊維長が短いため一般にプリプレグに比べて繊維強化樹脂製構造体の強度が低くなるものの、凸条等の複雑な形状を形成するのに好適である。本発明の繊維強化樹脂製構造体の製造方法では、繊維強化樹脂含浸体（Ａ）に強度向上に優れる連続した強化繊維に熱硬化性樹脂組成物を含浸したプリプレグと、繊維強化樹脂含浸体（Ｂ）に凸条等の複雑な形状の形成に優れる短繊維状の強化繊維に熱硬化性樹脂組成物を含浸したＳＭＣを併用することが好ましい。
Hereinafter, the present invention will be described in detail.
"Fiber-reinforced resin impregnated body"
The fiber reinforced resin impregnated body that can be used in the production method of the present invention is a fiber reinforced composite material in which a reinforced fiber is impregnated with a thermosetting resin composition. Examples of such fiber-reinforced composite materials include substantially continuous reinforcing fibers impregnated with a thermosetting resin composition (prepreg), short fibrous reinforcing fibers impregnated with a thermosetting resin composition ( SMC). Especially, since it is excellent in the intensity | strength improvement of the structure made from a fiber reinforced resin, a prepreg is preferable. The form of the prepreg is not particularly limited, and examples thereof include a UD prepreg in which reinforcing fibers are aligned in one direction, and a woven prepreg in which reinforcing fibers are woven. In order to enhance the design of the fiber reinforced resin structure, a plurality of prepregs are used in combination, such as a woven prepreg on the surface of the fiber reinforced resin structure and a UD prepreg inside the fiber reinforced resin structure. You can also. On the other hand, SMC is suitable for forming a complicated shape such as a ridge although the fiber length is short and generally the strength of the fiber reinforced resin structure is lower than that of the prepreg. In the method for producing a fiber-reinforced resin structure according to the present invention, a prepreg obtained by impregnating a continuous reinforcing fiber excellent in strength improvement into a fiber-reinforced resin impregnated body (A) with a thermosetting resin composition, and a fiber-reinforced resin impregnated body ( It is preferable to use together SMC impregnated with a thermosetting resin composition in short fiber-like reinforcing fibers excellent in the formation of complex shapes such as ridges in B).
「強化繊維」
本発明の製造方法に使用できるプリプレグやＳＭＣに含まれる強化繊維としては、例えば、炭素繊維、ガラス繊維、アラミド繊維、ボロン繊維、炭化珪素繊維、高強度ポリエチレン、ポリパラフェニレンベンゾビスオキサゾール（ＰＢＯ）繊維、ナイロン繊維、ステンレススチール繊維等が挙げられ、なかでも軽量で剛性が高いことから炭素繊維が好ましい。また、強化繊維としては、長繊維及び短繊維が挙げられ、ＳＭＣに含まれる強化繊維では通常長さが２５ｍｍ程度の短繊維が用いられる。また、プリプレグでは、剛性の点から長繊維が好ましい。長繊維の形態としては、一方向に揃えられたもの、長繊維からなる織物等が挙げられる。
"Reinforcing fiber"
Examples of the reinforcing fiber contained in the prepreg or SMC that can be used in the production method of the present invention include carbon fiber, glass fiber, aramid fiber, boron fiber, silicon carbide fiber, high-strength polyethylene, and polyparaphenylene benzobisoxazole (PBO). Examples thereof include fiber, nylon fiber, and stainless steel fiber. Among these, carbon fiber is preferable because it is lightweight and has high rigidity. The reinforcing fibers include long fibers and short fibers, and the reinforcing fibers included in the SMC are usually short fibers having a length of about 25 mm. In the prepreg, long fibers are preferable from the viewpoint of rigidity. Examples of the form of the long fiber include one aligned in one direction, a woven fabric made of long fibers, and the like.
「熱硬化性樹脂」
本発明の製造方法に使用できるプリプレグやＳＭＣに含まれる熱硬化性樹脂組成物としては、例えば、エポキシ樹脂、ビニルエステル樹脂、不飽和ポリエステル樹脂、ポリイミド樹脂、マレイミド樹脂、フェノール樹脂等が挙げられる。強化繊維として炭素繊維を用いる場合は、炭素繊維との接着性の点からエポキシ樹脂やビニルエステル樹脂が望ましい。エポキシ樹脂組成としては、エポキシ樹脂成分、硬化剤成分以外に、エラストマー成分を含有することが更に好ましい。エラストマー成分としてはＣａｒｂｏｘｙ-Ｔｅｒｍｉｎａｔｅｄ Ｂｕｔａｄｉｅｎｅ Ａｃｒｙｌｏｎｉｔｒｉｌｅ Ｃｏｐｏｌｙｍｅｒ（ＣＴＢＮ）等が挙げられる。
また、プリプレグに用いられる熱硬化性樹脂と、ＳＭＣに用いられる熱硬化性樹脂とは、同じであっても異なっていても良いが、一般に硬化後の強度を高くできることからプリプレグにはエポキシ樹脂が好ましく、ＳＭＣには硬化を早くできることからビニルエステル樹脂が好ましい。
"Thermosetting resin"
Examples of the thermosetting resin composition contained in the prepreg and SMC that can be used in the production method of the present invention include epoxy resins, vinyl ester resins, unsaturated polyester resins, polyimide resins, maleimide resins, and phenol resins. When carbon fibers are used as the reinforcing fibers, epoxy resins and vinyl ester resins are desirable from the viewpoint of adhesiveness with carbon fibers. As an epoxy resin composition, it is more preferable to contain an elastomer component in addition to the epoxy resin component and the curing agent component. Examples of the elastomer component include carboxylic-terminated butadiene acrylonitrile polymer (CTBN).
In addition, the thermosetting resin used for the prepreg and the thermosetting resin used for the SMC may be the same or different. However, since the strength after curing can generally be increased, an epoxy resin is used for the prepreg. Preferably, vinyl ester resin is preferable for SMC because it can be cured quickly.
「複合材料の製造方法」
複雑な形状の複合材料を得るために、その形状に合わせて複数の繊維強化樹脂含浸体を積層したり、組み合わせたりすることが行われている。特に強化繊維と熱硬化性樹脂組成物とを含むプリプレグ（Ａ）の表面の一部に、強化繊維と熱硬化性樹脂組成物とを含むＳＭＣ（Ｂ）を配置して、複合材料を一体成形する複合材料の製造方法については、例えば、プリプレグ（Ａ）を複雑な形状に成形し、その表面の一部に、ＳＭＣ（Ｂ）を配置して、補強したり、さらに複雑な形状としたりすることが行われる。
"Production method of composite materials"
In order to obtain a composite material having a complicated shape, a plurality of fiber reinforced resin impregnated bodies are laminated or combined in accordance with the shape. In particular, SMC (B) containing reinforcing fiber and thermosetting resin composition is arranged on a part of the surface of prepreg (A) containing reinforcing fiber and thermosetting resin composition, and the composite material is integrally formed. As for the manufacturing method of the composite material, for example, the prepreg (A) is formed into a complicated shape, and SMC (B) is arranged on a part of the surface to be reinforced or made into a more complicated shape. Is done.
強化繊維と熱硬化性樹脂組成物とを含むプリプレグ（Ａ）の表面の一部に、強化繊維と熱硬化性樹脂組成物とを含む、凸条を形成するＳＭＣ（Ｂ）を凸条を形成する部位に配置して、複合材料を一体成形する複合材料の製造方法において、前記プリプレグ（Ａ）のキュアタイム（以下、ＣＴという）をＣＴａ、前記ＳＭＣ（Ｂ）のＣＴをＣＴｂとしたとき、（ＣＴｂ／ＣＴａ）が、０．８〜１．３の範囲であると、前記ＳＭＣ（Ｂ）で形成されている部分にプリプレグ（Ａ）の樹脂が流入し、薄膜を形成することがなく好ましい。１．３を超えると前記ＳＭＣ（Ｂ）で形成されている部分の硬化が不十分になることがあるが、高い生産効率で繊維強化樹脂製構造体を得られないこともないので好ましい。さらに好ましいのは、０．８〜１．２の範囲である。 SMC (B) is formed on a part of the surface of the prepreg (A) containing the reinforcing fiber and the thermosetting resin composition, and the reinforcing fiber and the thermosetting resin composition are formed on the surface of the prepreg (A). In the method for producing a composite material in which the composite material is integrally formed by placing the composite material in a site to be cured, when the cure time (hereinafter referred to as CT) of the prepreg (A) is CTa and the CT of the SMC (B) is CTb, When (CTb / CTa) is in the range of 0.8 to 1.3, the resin of the prepreg (A) flows into the portion formed of the SMC (B), which is preferable without forming a thin film. . If it exceeds 1.3, curing of the portion formed with the SMC (B) may be insufficient, but it is preferable because a fiber-reinforced resin structure cannot be obtained with high production efficiency. More preferred is a range of 0.8 to 1.2.
（ＣＴの測定方法）
前記プリプレグ（Ａ）のＣＴ：ＣＴａ、前記ＳＭＣ（Ｂ）のＣＴ：ＣＴｂはそれぞれ次の方法で求めた。
まず、ＣＴは厚さ２ｍｍ、長さ１００ｍｍ、幅１００ｍｍのキャビティを持ち成形板の中央の温度が測定可能な金型を用いて、金型温度１４０℃、成形圧力８ＭＰａとし、所定量のサンプルを金型の中央にチャージし、素早く型を閉じ、サンプルの温度変化を記録し発熱ピークが観測されたら、測定を終了する。ＣＴは９０℃から発熱ピークまでの時間（ｓｅｃ）を読み取る。
(CT measurement method)
CT: CTa of the prepreg (A) and CT: CTb of the SMC (B) were determined by the following methods, respectively.
First, CT uses a mold that has a cavity with a thickness of 2 mm, a length of 100 mm, and a width of 100 mm, and can measure the temperature at the center of the molding plate. The mold temperature is 140 ° C. and the molding pressure is 8 MPa. Charge the center of the mold, quickly close the mold, record the temperature change of the sample, and when the exothermic peak is observed, stop the measurement. CT reads the time (sec) from 90 ° C. to the exothermic peak.
［第１実施形態］
以下、本発明の製造方法の第１実施形態として、図１に例示する繊維強化樹脂製構造体１０（以下、構造体１０という）を製造する方法について説明する。
[First Embodiment]
Hereinafter, as a first embodiment of the manufacturing method of the present invention, a method for manufacturing a structure 10 made of fiber reinforced resin (hereinafter referred to as structure 10) illustrated in FIG. 1 will be described.
（繊維強化樹脂製構造体）
構造体１０は、図１に示すように、長尺の平板状の基板１１（以下、基板１１という）と、基板１１の片面（同一面）の幅方向の両側に該基板１１の長手方向に沿って形成された断面三角状の凸条１２、１３とからなる。
(Fiber-reinforced resin structure)
As shown in FIG. 1, the structure 10 includes a long flat substrate 11 (hereinafter referred to as a substrate 11) and one side (same surface) of the substrate 11 on both sides of the width direction in the longitudinal direction of the substrate 11. Consists of ridges 12 and 13 having a triangular cross section formed along.
（圧縮成形用金型）
構造体１０を製造する圧縮成形用金型２０は、図２に示すように、相対移動が可能な上型２１及び下型２２を備えている。下型２２には、構造体１０の凸条１２、１３を成形する凸条用キャビティ２３、２４が設けられている。また、上型２１と下型２２とを近接させることにより、上型２１と下型２２との間に基板１１を成形する平板用キャビティ２５が形成される。
(Mold for compression molding)
As shown in FIG. 2, the compression mold 20 for manufacturing the structure 10 includes an upper mold 21 and a lower mold 22 that can be moved relative to each other. The lower mold 22 is provided with ridge cavities 23 and 24 for forming the ridges 12 and 13 of the structure 10. Further, by bringing the upper mold 21 and the lower mold 22 close to each other, a flat plate cavity 25 for forming the substrate 11 is formed between the upper mold 21 and the lower mold 22.
（製造方法）
本実施形態例の製造方法は、成形材料としてＳＭＣ及びプリプレグを使用し、圧縮成形用金型２０の内部に、凸条１２、１３を形成するＳＭＣを配置する工程（１）と、基板１１を形成するプリプレグを配置する工程（２）と、圧縮成形用金型２０内でＳＭＣとプリプレグを加熱、加圧して圧縮成形する工程（３）とを含む。
(Production method)
In the manufacturing method of the present embodiment, SMC and prepreg are used as the molding material, and the SMC for forming the ridges 12 and 13 is placed inside the compression molding die 20 and the substrate 11 is disposed. A step (2) of arranging the prepreg to be formed, and a step (3) of heating and pressurizing and compressing the SMC and the prepreg in the compression mold 20.
工程（１）と工程（２）の順序は特に限定されず、下型凸条用キャビティ２３、２４上にＳＭＣを配置し（工程（１））、その後、配置したＳＭＣ上に、必要な量のプリプレグを積層してプリプレグを配置する（工程（２））方法が考えられる。
特に好ましい方法は、圧縮成形用金型２０の外で、必要な量のプリプレグを積層したプリプレグと、圧縮成形用金型２０内に配置した際に凸条用キャビティ２３と凸条用キャビティ２４上に位置するように、プリプレグ上に積層されたＳＭＣとを用意し、その後に、ＳＭＣが下型凸条用キャビティ２３、２４に接するようにＳＭＣとプリプレグとを同時に圧縮成形用金型２０内に配置する方法である（工程（１）と工程（２）を同時に行う）。この方法によれば、圧縮成形用金型２０を予め圧縮成形時の温度まで加熱しておくことができるため、生産効率が高くなる。
The order of the step (1) and the step (2) is not particularly limited, and the SMC is arranged on the lower mold cavities 23 and 24 (step (1)), and then the necessary amount is placed on the arranged SMC. A method of arranging the prepregs and arranging the prepregs (step (2)) is conceivable.
Particularly preferable methods include a prepreg in which a necessary amount of prepregs are laminated outside the compression molding die 20, and on the protrusion cavities 23 and the ridge cavities 24 when placed in the compression molding die 20. SMC laminated on the prepreg so as to be positioned at the same time, and thereafter, the SMC and the prepreg are simultaneously placed in the compression mold 20 so that the SMC contacts the lower mold ridge cavities 23, 24. This is a method of arranging (step (1) and step (2) are performed simultaneously). According to this method, since the compression molding die 20 can be heated in advance to the temperature at the time of compression molding, the production efficiency is increased.
本実施形態の製造方法は、このように基板１１の同一面の凸条１２、１３を形成する凸条用キャビティ２３と凸条用キャビティ２４上に、凸条１２、１３を形成するＳＭＣを配置することを特徴とする。
配置されるＳＭＣは、基板１１に用いるプリプレグに対するＣＴの比率を０．８〜１．２とすることが特に好ましい。ＳＭＣのＣＴをプリプレグと同程度とすれば、良好な品質の構造体１０をより安定に製造することができる。
In the manufacturing method of this embodiment, the SMC for forming the ridges 12 and 13 is arranged on the ridge cavities 23 and the ridge cavities 24 for forming the ridges 12 and 13 on the same surface of the substrate 11 as described above. It is characterized by doing.
As for SMC arrange | positioned, it is especially preferable that the ratio of CT with respect to the prepreg used for the board | substrate 11 shall be 0.8-1.2. If the CT of SMC is set to the same level as that of the prepreg, the structure 10 having good quality can be manufactured more stably.
ＳＭＣの使用量は、圧縮成形の際に圧縮成形用金型２０の凸条用キャビティ２３と凸条用キャビティ２４にＳＭＣが十分充填する事を考慮して、凸条１２、１３の成形に必要な量に設定することが好ましい。 The amount of SMC used is necessary for forming the ridges 12 and 13 in consideration of the sufficient filling of SMC into the ridge cavities 23 and the ridge cavities 24 of the compression mold 20 during compression molding. It is preferable to set to an appropriate amount.
以上説明した本実施形態の製造方法では、ＳＭＣで形成されている凸条部分にプリプレグの樹脂組成物が流入し、表面に薄膜を形成することが無いので、良好な品質の構造体１０を安定して高い生産効率で製造する事が出来る。
また、成形材料としてＳＭＣだけでなくプリプレグを用いているため、ＳＭＣのみで製造した繊維強化樹脂製構造体に比べて強度が高い。
In the manufacturing method of the present embodiment described above, the resin composition of the prepreg flows into the ridge portion formed of SMC, and a thin film is not formed on the surface. And can be manufactured with high production efficiency.
Moreover, since not only SMC but also a prepreg is used as a molding material, the strength is higher than that of a fiber reinforced resin structure manufactured only with SMC.
また、本発明の製造方法により製造する繊維強化樹脂製構造体の形状は、図示したものには限定されない。例えば、同一面に形成する凸条の数は４つ以上であってもよい。また、基板の凸条を形成する面は片面に限定されず、例えば、基板の両面に凸条を有する繊維強化樹脂製構造体であってもよい。この場合には、圧縮用金型内の下型にＳＭＣを配置し、その上にプリプレグを配置し、さらにその上にＳＭＣを配置するようにすればよく、ＳＭＣを配置する方法については第１実施形態と同じようにすればよい。また、凸条の形状は、断面三角状、断面矩形状、断面台形状のいずれであってもよく、それ以外の形状であってもよい。
また、基板の形状は、図示例のような平板状には限定されず、例えば、アーチ状の基板であってもよい。
Moreover, the shape of the fiber reinforced resin structure manufactured by the manufacturing method of the present invention is not limited to the illustrated one. For example, the number of ridges formed on the same surface may be four or more. Moreover, the surface which forms the protruding item | line of a board | substrate is not limited to one side, For example, the structure made from a fiber reinforced resin which has a protruding item | line on both surfaces of a board | substrate may be sufficient. In this case, the SMC may be disposed in the lower mold in the compression mold, the prepreg may be disposed thereon, and the SMC may be disposed thereon. What is necessary is just to carry out similarly to embodiment. Further, the shape of the ridges may be any of a triangular cross-section, a rectangular cross-section, and a trapezoidal cross-section, or other shapes.
Further, the shape of the substrate is not limited to a flat plate shape as shown in the drawing, and may be an arched substrate, for example.
以下、実施例及び比較例を示して本発明を詳細に説明するが、本発明は以下の記載によっては限定されない。本実施例では、図２に例示した圧縮成形用金型２０を用いて、図１に例示した構造体１０の製造を行った。
（凸条部分の薄膜評価）
各例で得られた繊維強化樹脂製構造体の凸条部分の薄膜を目視により下記基準で評価した。
×：凸条部分に繊維強化樹脂含浸体の樹脂組成物が流入し薄膜を形成した。
○：凸条部分に繊維強化樹脂含浸体の樹脂組成物は流入しないで薄膜は形成しなかった。
EXAMPLES Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated in detail, this invention is not limited by the following description. In this example, the structure 10 illustrated in FIG. 1 was manufactured using the compression molding die 20 illustrated in FIG. 2.
(Evaluation of thin film on ridges)
The thin film of the protruding portion of the fiber reinforced resin structure obtained in each example was evaluated visually according to the following criteria.
X: The resin composition of the fiber reinforced resin impregnated body flowed into the ridge portion to form a thin film.
○: The resin composition of the fiber-reinforced resin impregnated body did not flow into the ridges, and no thin film was formed.
［実施例１］
プリプレグとして、ＴＲ３９１Ｅ２５０Ｓ（三菱レイヨン社製）を用意した。このプリプレグは、引張弾性率２４０ＧＰａ、引張強度４９００ＭＰａの炭素繊維を、目付けが２５０ｇ／ｍ２ となるように一方向に引き揃え、エポキシ樹脂組成物を含有量が３０質量％となるように含浸させてなる一方向（ＵＤ）プリプレグである。ついで、このプリプレグを基板１１（７０ｍｍ×９００ｍｍ）の投影形状に対して全周２．５ｍｍずつ小さくなるように切り出し、これらを順次繊維方向が０°／９０°／０°／９０°／０°となるように５枚積層し、プリプレグ積層体を準備した。
また、凸条１２、１３を形成するのに必要な量のＳＭＣを用意した。このＳＭＣは、ＴＲ３９１Ｅ２５０Ｓに対するＣＴ（キュアタイム）の比率が１．１７で、１インチに切断した炭素繊維（ＣＦ）を、ビニルエステル樹脂組成物に含有量が５３質量％となるように分散させたＣＦ−ＳＭＣである。
[Example 1]
As a prepreg, TR391E250S (manufactured by Mitsubishi Rayon Co., Ltd.) was prepared. In this prepreg, carbon fibers having a tensile elastic modulus of 240 GPa and a tensile strength of 4900 MPa are aligned in one direction so that the basis weight is 250 g / m 2, and impregnated with an epoxy resin composition so that the content is 30% by mass. Is a unidirectional (UD) prepreg. Next, this prepreg is cut out so that the entire circumference is reduced by 2.5 mm with respect to the projected shape of the substrate 11 (70 mm × 900 mm), and the fiber direction is sequentially 0 ° / 90 ° / 0 ° / 90 ° / 0 °. Then, 5 sheets were laminated so that a prepreg laminate was prepared.
In addition, an amount of SMC necessary for forming the ridges 12 and 13 was prepared. In this SMC, the ratio of CT (cure time) to TR391E250S was 1.17, and carbon fibers (CF) cut into 1 inch were dispersed in the vinyl ester resin composition so that the content was 53% by mass. CF-SMC.
ついで、圧縮成形用金型２０内に配置した際、下型内面２２ａ上の、凸条用キャビティ２３と凸条用キャビティ２４上に位置するように、前記ＳＭＣを前記プリプレグ積層体上に積層した後、ＳＭＣが、下型内面２２ａ上の、凸条用キャビティ２３と凸条用キャビティ２４上に、ＳＭＣとプリプレグとの積層体を下型内面２２ａ上へ配置した。ついで、上型２１と下型２２を近接させて、ＳＭＣとプリプレグを加圧しながら圧縮成形用金型２０内で１４０℃、５分間加熱し、繊維強化樹脂製構造体１０を得た。 Next, the SMC was laminated on the prepreg laminate so as to be positioned on the ridge cavities 23 and the ridge cavities 24 on the inner surface 22a of the lower mold when placed in the compression mold 20. After that, the SMC placed a laminate of SMC and prepreg on the lower mold inner surface 22 a on the convex cavity 23 and the convex cavity 24 on the lower mold inner surface 22 a. Next, the upper mold 21 and the lower mold 22 were brought close to each other and heated in a compression molding mold 20 at 140 ° C. for 5 minutes while applying pressure to the SMC and the prepreg to obtain a fiber reinforced resin structure 10.
[実施例２〜３]
表１に示す、ＴＲ３９１Ｅ２５０Ｓに対するＳＭＣのＣＴの比率とした以外は、実施例１と同様に繊維強化樹脂製構造体１０を得た。
[Examples 2-3]
A fiber-reinforced resin structure 10 was obtained in the same manner as in Example 1 except that the ratio of CT of SMC to TR391E250S shown in Table 1 was used.
［比較例１〜４］
表１に示す、ＴＲ３９１Ｅ２５０Ｓに対するＳＭＣのＣＴの比率とした以外は、実施例１と同様に繊維強化樹脂製構造体１０を得た。
[Comparative Examples 1-4]
A fiber-reinforced resin structure 10 was obtained in the same manner as in Example 1 except that the ratio of CT of SMC to TR391E250S shown in Table 1 was used.
表１に示すように、基板１１に用いるプリプレグ（ＴＲ３９１Ｅ２５０Ｓ）に対するＣＴの比率が０．８〜１．２のＳＭＣを凸条部分に使用した実施例１〜３の製造方法では、凸条部分にプリプレグの樹脂組成物の薄膜を形成しない、良好な品質の繊維強化樹脂製構造体を安定して高い生産効率で得る事が出来た。一方、基板１１に用いるプリプレグ（ＴＲ３９１Ｅ２５０Ｓ）に対するＣＴの比率が０．８未満のＳＭＣを凸条部分に使用した比較例１〜４の製造方法では、高い生産効率で繊維強化樹脂製構造体が得られたものの、凸条部分にプリプレグの樹脂組成物の薄膜が形成し、良好な品質の繊維強化樹脂製構造体を安定して得る事が出来なかった。 As shown in Table 1, in the manufacturing methods of Examples 1 to 3 in which SMC having a CT ratio of 0.8 to 1.2 with respect to the prepreg (TR391E250S) used for the substrate 11 is used for the ridge portion, A good quality fiber reinforced resin structure which does not form a thin film of the resin composition of the prepreg could be stably obtained with high production efficiency. On the other hand, in the manufacturing methods of Comparative Examples 1 to 4 in which SMC having a CT ratio of less than 0.8 for the prepreg (TR391E250S) used for the substrate 11 is used for the protruding strip portion, a fiber-reinforced resin structure is obtained with high production efficiency. However, a thin film of a prepreg resin composition was formed on the ridge portion, and a fiber-reinforced resin structure having good quality could not be stably obtained.
１０：繊維強化樹脂製構造体
１１：基板
１２：凸条
１３：凸条
２０：圧縮成形用金型
２１：上型
２２：下型
２２ａ：下型内面
２３：凸条用キャビティ
２４：凸条用キャビティ
２５：平板用キャビティ
10: fiber reinforced resin structure 11: substrate 12: ridge 13: ridge 20: compression mold 21: upper mold 22: lower mold 22a: lower mold inner surface 23: ridge cavity 24: ridge Cavity 25: Flat plate cavity
Claims (6)
ＣＴａを、前記プリプレグ（Ａ）のキュアタイム、ＣＴｂを、前記ＳＭＣ（Ｂ）のキュアタイムとしたとき、
次の式（１）を満たすプリプレグ（Ａ）、ＳＭＣ（Ｂ）を用いる複合材料の製造方法。
ただし、前記プリプレグ（Ａ）に含まれる熱硬化性樹脂組成物と前記ＳＭＣ（Ｂ）に含まれる熱硬化性樹脂組成物が同一である場合を除く。
０．８≦（ＣＴｂ／ＣＴａ）≦１．３・・・・・・（１） SMC (B) is formed on a part of the surface of the prepreg (A) containing the reinforcing fiber and the thermosetting resin composition, and the reinforcing fiber and the thermosetting resin composition are formed on the surface of the prepreg (A). In a method for producing a composite material, which is disposed at a site to be integrally molded with a composite material,
When CTa is the cure time of the prepreg (A) and CTb is the cure time of the SMC (B),
The manufacturing method of the composite material using the prepreg (A) and SMC (B) which satisfy | fill following formula (1).
However, the case where the thermosetting resin composition contained in the prepreg (A) and the thermosetting resin composition contained in the SMC (B) are the same is excluded.
0.8 ≦ (CTb / CTa) ≦ 1.3 (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011213974A JP5950149B2 (en) | 2011-09-29 | 2011-09-29 | A method for producing a fiber-reinforced resin structure. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011213974A JP5950149B2 (en) | 2011-09-29 | 2011-09-29 | A method for producing a fiber-reinforced resin structure. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2013072055A JP2013072055A (en) | 2013-04-22 |
| JP5950149B2 true JP5950149B2 (en) | 2016-07-13 |
Family
ID=48476817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011213974A Active JP5950149B2 (en) | 2011-09-29 | 2011-09-29 | A method for producing a fiber-reinforced resin structure. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5950149B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021192464A1 (en) | 2020-03-24 | 2021-09-30 | 東レ株式会社 | Preform and method for producing same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6965547B2 (en) * | 2017-03-31 | 2021-11-10 | 東レ株式会社 | Manufacturing method of fiber reinforced composite material |
| KR102548477B1 (en) * | 2018-07-16 | 2023-06-28 | 현대자동차주식회사 | Center floor of composite material |
| JP7146519B2 (en) | 2018-08-08 | 2022-10-04 | 株式会社イノアックコーポレーション | Fiber-reinforced resin molded article and method for producing fiber-reinforced resin molded article |
| US20220402238A1 (en) * | 2019-08-27 | 2022-12-22 | Inoac Corporation | Fiber-reinforced-resin composite molded article and method for producing same, antibacterial composite molded article and method for producing same, antibacterial fiber-reinforced resin composite molded article and method for producing same, and fiber-reinforced-resin laminated molded article and method for producing same |
| JP7139296B2 (en) * | 2019-09-11 | 2022-09-20 | 株式会社イノアックコーポレーション | Fiber-reinforced resin composite molding and method for producing the same |
| JP7467198B2 (en) | 2020-03-30 | 2024-04-15 | 株式会社イノアックコーポレーション | Antibacterial fiber-reinforced resin composite molding and its manufacturing method |
| JP7220004B2 (en) * | 2019-08-27 | 2023-02-09 | 株式会社イノアックコーポレーション | Fiber-reinforced resin composite molding and method for producing the same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2958036B2 (en) * | 1990-02-14 | 1999-10-06 | 住友ベークライト株式会社 | Penetration resistant composite molding |
| JPH08319356A (en) * | 1995-05-29 | 1996-12-03 | Okura Ind Co Ltd | Production of molded product having three-dimensional pattern formed thereon |
| JPH09169862A (en) * | 1995-08-11 | 1997-06-30 | Takeda Chem Ind Ltd | Prepreg sheet and molded item obtained therefrom |
| JPH09241313A (en) * | 1996-03-12 | 1997-09-16 | Kayaku Akzo Kk | Peroxy ester composition |
| JP2000025144A (en) * | 1998-07-14 | 2000-01-25 | Mitsubishi Plastics Ind Ltd | Fiber-reinforced resin unit plate |
| JP2000334757A (en) * | 1999-05-31 | 2000-12-05 | Bridgestone Corp | Method for molding decorative resin molding |
| JP4240004B2 (en) * | 2005-05-26 | 2009-03-18 | パナソニック電工株式会社 | Thermosetting resin composition, production method thereof, molding method thereof and molded article |
| JP5424549B2 (en) * | 2007-10-03 | 2014-02-26 | 三菱レイヨン株式会社 | Manufacturing method of fiber reinforced resin structure |
-
2011
- 2011-09-29 JP JP2011213974A patent/JP5950149B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021192464A1 (en) | 2020-03-24 | 2021-09-30 | 東レ株式会社 | Preform and method for producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013072055A (en) | 2013-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5950149B2 (en) | A method for producing a fiber-reinforced resin structure. | |
| JP5644496B2 (en) | Fiber reinforced thermoplastic resin molding | |
| US8101262B2 (en) | Fiber-reinforced plastic and process for production thereof | |
| JP6407057B2 (en) | Method for producing molded thermoplastic resin | |
| WO2020071417A1 (en) | Composite component for aircraft and manufacturing method therefor | |
| WO2011052243A1 (en) | Fiber-reinforced molded product and method for producing same | |
| JP4732103B2 (en) | Manufacturing method of tubular member made of fiber reinforced resin | |
| US11926111B2 (en) | Manufacturing method for fiber-reinforced plastic composite | |
| JP2020062893A (en) | Fiber-reinforced resin molded product and method for producing fiber-reinforced resin molded product | |
| KR20160079326A (en) | Method for manufacturing hybrid composite material comprising glass fiber reinforced plastic and aluminum and hybrid composite material | |
| JP6389654B2 (en) | Method for producing carbon fiber composite material | |
| KR20190107681A (en) | Fiber reinforced resin sheet | |
| JP5424549B2 (en) | Manufacturing method of fiber reinforced resin structure | |
| JP6749012B2 (en) | Fiber-reinforced resin member and method for manufacturing the same | |
| KR101932635B1 (en) | Composite material article manufacturing method | |
| JPH0668594B2 (en) | Carbon fiber reinforced thermosetting resin camera shutter blades | |
| JP2009019089A (en) | Fiber-reinforced plastic and reinforced heat-insulating composite material using the same | |
| JP7473416B2 (en) | Method for producing fiber-reinforced composite material | |
| JP2004338270A (en) | Method for producing fiber-reinforced resin composite material and fiber-reinforced resin composite material | |
| JP2018172474A (en) | Method for manufacturing fiber-reinforced composite material | |
| KR20120051146A (en) | Long fiber thermoplastic complex material having high strength and high hardness and method for manufacturing the same | |
| JP7139296B2 (en) | Fiber-reinforced resin composite molding and method for producing the same | |
| JPH025979A (en) | Golf club | |
| JP7466248B1 (en) | Press molding member, its manufacturing method, and manufacturing method of battery case using press molding member | |
| JP5273978B2 (en) | Fiber reinforced resin hollow body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20140909 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20150403 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20150507 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150629 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20151203 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160125 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160225 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160419 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20160512 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160525 |
|
| R151 | Written notification of patent or utility model registration |
Ref document number: 5950149 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R370 | Written measure of declining of transfer procedure |
Free format text: JAPANESE INTERMEDIATE CODE: R370 |
|
| R157 | Certificate of patent or utility model (correction) |
Free format text: JAPANESE INTERMEDIATE CODE: R157 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |