JPH07100352B2 - Method for manufacturing fiber-reinforced composite material - Google Patents
Method for manufacturing fiber-reinforced composite materialInfo
- Publication number
- JPH07100352B2 JPH07100352B2 JP62048460A JP4846087A JPH07100352B2 JP H07100352 B2 JPH07100352 B2 JP H07100352B2 JP 62048460 A JP62048460 A JP 62048460A JP 4846087 A JP4846087 A JP 4846087A JP H07100352 B2 JPH07100352 B2 JP H07100352B2
- Authority
- JP
- Japan
- Prior art keywords
- matrix
- composite material
- fiber
- reinforced composite
- dimensional structure
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 title claims description 18
- 239000003733 fiber-reinforced composite Substances 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title description 18
- 239000011159 matrix material Substances 0.000 claims description 32
- 239000011347 resin Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 20
- 229920001187 thermosetting polymer Polymers 0.000 claims description 14
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 12
- 239000004917 carbon fiber Substances 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000011295 pitch Substances 0.000 claims description 6
- 239000003245 coal Substances 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- 239000011269 tar Substances 0.000 claims description 4
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 238000003763 carbonization Methods 0.000 description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 238000005470 impregnation Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005087 graphitization Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 239000011300 coal pitch Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000007833 carbon precursor Substances 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000011165 3D composite Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000005539 carbonized material Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、繊維強化複合材料の製造方法に関し、前記繊
維強化複合材料の前駆体の一部を除く外表面に熱硬化性
樹脂の硬化物層を形成することにより、充填用としての
マトリックスを選ばず、複雑形状にも高い精度で効率よ
く対応できる繊維強化複合材料の製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for producing a fiber-reinforced composite material, which is a cured product of a thermosetting resin on the outer surface excluding a part of the precursor of the fiber-reinforced composite material. TECHNICAL FIELD The present invention relates to a method for producing a fiber-reinforced composite material, which is capable of efficiently handling a complicated shape with high accuracy by selecting a matrix for filling by forming a layer.
（従来の技術） 従来、主として炭素繊維から成る立体的な複合材料を製
造する場合、複合材料の前駆体を減圧および加圧可能な
オートクレーブ内に投入し、減圧した後に液状のマトリ
ックスを含浸し、次いで加圧下において炭素化する。次
いで適時黒鉛化を行いながら含浸−炭素化−削り出し加
工のサイクルを繰り返し、目的とする嵩密度に達した
後、精密な加工を施す方法が知られている（以下、これ
をＡ法と呼ぶ）。(Prior Art) Conventionally, when a three-dimensional composite material mainly composed of carbon fibers is manufactured, a precursor of the composite material is put into an autoclave capable of depressurizing and pressurizing, and after depressurizing, a liquid matrix is impregnated, It is then carbonized under pressure. Next, a method is known in which the cycle of impregnation-carbonization-cutting-out is repeated while performing graphitization at appropriate times, and precision processing is performed after the target bulk density is reached (hereinafter referred to as method A). ).
また、オートクレーブ内における含浸処理の後、被含浸
物をマトリックス液中より取り出し、炭素化し、次いで
適時黒鉛化を行ないながら含浸−炭素化のサイクルを繰
り返し、目的とする嵩密度に達した後、精密な加工を施
す方法が知られている（以下、これをＢ法と呼ぶ）。In addition, after the impregnation treatment in the autoclave, the impregnated material is taken out from the matrix liquid, carbonized, and then the cycle of impregnation-carbonization is repeated while performing graphitization at appropriate times, and after reaching the target bulk density, precise A method of performing various processes is known (hereinafter, referred to as B method).
（発明が解決しようとする問題点） しかしながらＡ法においては、被含浸物のサイズよりも
十分大きな内容積を有するオートクレーブを含浸用容器
に用いるため、含浸あるいは炭素化後の被含浸物はマト
リックス硬化物あるいは炭素化物の厚い壁内に包摂さ
れ、炭素化あるいは黒鉛化あるいは再含浸を行う以前に
おいて、けずり出し加工工程を経、さらに最終工程にお
いて精密な加工を行わなければならないという問題点を
有していた。(Problems to be Solved by the Invention) However, in the method A, since the autoclave having an inner volume sufficiently larger than the size of the material to be impregnated is used for the container for impregnation, the material to be impregnated after impregnation or carbonization is matrix-cured. It is contained in a thick wall of a substance or a carbonized material, and has a problem that it has to undergo a skid-out processing step before carbonization, graphitization or re-impregnation, and further, a precise processing must be performed in the final step. Was there.
Ｂ法においては、含浸−炭素化毎のけずり出し加工工程
を必ずしも必要とはしないが、マトリックスとして熱硬
化性樹脂を用いた場合、炭素化時において形状を保持す
るが、マトリックスの炭素化収率が低いため、含浸−炭
素化のサイクルを繰り返さなければならないという問題
点を有していた。また、マトリックスとして熱可塑性樹
脂、あるいは石炭系もしくは石油系の重質油、タール等
を用いた場合、炭素化時においてマトリックスが軟化流
出し、形状の精度が低く、上部および下部、あるいは周
辺部および中心部の密度の差が大きく均一性に欠ける
上、マトリックスの炭素化収率が低いため、含浸−炭素
化のサイクルを繰り返さなければならないという問題点
を有していた。また、マトリックスとして石炭系もしく
は石油系のピッチを用いた場合、炭素化収率は高いが、
炭素化時においてマトリックスが軟化流出し、形状の精
度が低く、上部および下部、あるいは周辺部および中心
部の密度の差が大きく均一性に欠けるという問題点を有
していた。The method B does not necessarily require a slip-out process step for each impregnation-carbonization, but when a thermosetting resin is used as the matrix, the shape is retained during carbonization, but the carbonization yield of the matrix is increased. Therefore, there was a problem in that the cycle of impregnation-carbonization had to be repeated because of low. Further, when a thermoplastic resin, or a heavy oil of coal or petroleum, tar, etc. is used as the matrix, the matrix softens and flows out during carbonization, the shape accuracy is low, and the upper and lower portions or the peripheral portion and There was a problem that the cycle of impregnation-carbonization had to be repeated because the density of carbon in the central portion was large and lacked in uniformity, and the carbonization yield of the matrix was low. When coal-based or petroleum-based pitch is used as the matrix, the carbonization yield is high,
There was a problem that the matrix was softened and flowed out at the time of carbonization, the accuracy of the shape was low, and the difference in the density between the upper part and the lower part, or the peripheral part and the central part was large and lacked in uniformity.
（問題点を解決するための手段および作用） 本発明は前記従来方法の有する欠点ならびに問題点を除
去・改善することを目的とし、特許請求の範囲記載の方
法を提供することによって上記目的を達成することがで
きる。(Means and Actions for Solving Problems) The present invention aims to eliminate and improve the drawbacks and problems of the above-mentioned conventional method, and achieves the above object by providing the method described in the claims. can do.
本発明は、主として炭素繊維から成る立体的構造物を形
成し、この立体的構造物の外表面に一部の表面部分を除
いて熱硬化性樹脂をスプレー、浸漬、刷毛塗り等によっ
て熱硬化性樹脂硬化物層を形成し、全体を硬化樹脂容器
とする。そして、一部の表面部分をマトリックスの注入
口とし、この立体的構造物の注入口より硬化物層内にマ
トリックスを注入し、炭素繊維間を充填することによ
り、充填用マトリックス量を必要最小限にするこがで
き、またマトリックスとして比較的安価で、炭素化時に
おいて軟化流出するところの石炭系もしくは石油系の重
質油、タール、ピッチあるいはこれらのパウダー等を用
いた場合においても、熱硬化性樹脂硬化物層が形成され
ているため、充填されたマトリックスの流出が阻止さ
れ、含浸−炭素化毎のけずり出し加工工程および最終的
な精密加工工程を必要としない繊維強化複合材料の製造
方法である。The present invention forms a three-dimensional structure mainly composed of carbon fibers, and removes a thermosetting resin on the outer surface of this three-dimensional structure except for a part of the surface portion thereof by thermosetting by spraying, dipping, brush coating or the like. A cured resin layer is formed and the whole is used as a cured resin container. A part of the surface is used as a matrix injection port, and the matrix is injected from the injection port of this three-dimensional structure into the hardened material layer to fill the space between the carbon fibers to minimize the amount of filling matrix. In addition, even when using coal-based or petroleum-based heavy oil, tar, pitch, or powders thereof, which are relatively inexpensive as a matrix and which soften and flow out during carbonization, thermosetting Of the cured resin layer prevents the filled matrix from flowing out, and a method for producing a fiber-reinforced composite material which does not require a scooping step for each impregnation-carbonization and a final precision processing step. Is.
次に、上記立体構的造物について説明する。Next, the three-dimensional structure will be described.
本発明によれば、上記立体的構造物は、金属繊維、ガラ
ス繊維、セラミックス繊維、炭素繊維あるいは熱硬化性
樹脂等よりなる長繊維あるいは短繊維を、固定あるいは
成形あるいは織ることによって自立性を与えられた立体
構的造物である。According to the present invention, the three-dimensional structure imparts independence by fixing, molding or weaving long fibers or short fibers made of metal fibers, glass fibers, ceramic fibers, carbon fibers or thermosetting resins. It is a three-dimensional structure that was created.
次に、前記立体構的造物の外表面に形成される樹脂硬化
物層について説明する。Next, the cured resin layer formed on the outer surface of the three-dimensional structure will be described.
本発明によれば、上記熱硬化性樹脂硬化物層は、主にフ
ェノール樹脂、フラン樹脂、エポキシ樹脂、縮合多環多
核芳香族樹脂等の熱硬化性樹脂を50〜400℃の温度範囲
において硬化させて成る層状物である。さらに上記熱硬
化性樹脂は、前記立体構的造物の外表面にスプレー、浸
漬、刷毛塗り等によって塗布される時、重力方面に液だ
れしない10〜5000pの粘度範囲に調整されることが望ま
しい。According to the present invention, the thermosetting resin cured product layer mainly cures a thermosetting resin such as a phenol resin, a furan resin, an epoxy resin, a condensed polycyclic polynuclear aromatic resin in a temperature range of 50 to 400 ° C. It is a layered product. Further, it is desirable that the thermosetting resin is adjusted to have a viscosity range of 10 to 5000 p that does not drip in the gravity direction when it is applied to the outer surface of the three-dimensional structure by spraying, dipping, brushing or the like.
次に、前記マトリックスについて説明する。Next, the matrix will be described.
本発明によれば、前記マトリックスは、熱可塑性樹脂、
熱硬化性樹脂の液状物あるいは粉状物、あるいは石炭系
もしくは石油系の重質油、タール、ピッチであって、液
状物の場合、0.1〜10pの粘度範囲に調整されることが望
ましく、粉状物の場合、粒径が10μｍ以下であることが
望ましい。According to the invention, the matrix is a thermoplastic resin,
Liquid or powder of thermosetting resin, or heavy oil of coal or petroleum, tar, pitch, in the case of liquid, it is desirable to adjust the viscosity range of 0.1 ~ 10p, powder In the case of particles, it is desirable that the particle size is 10 μm or less.
また、前記マトリックスの充填は１〜１×104Paの圧力
範囲に減圧された密閉容器内において行われることが望
ましい。Further, it is preferable that the matrix is filled in a closed container whose pressure is reduced to 1 to 1 × 10 4 Pa.
次に、前記熱処理について説明する。Next, the heat treatment will be described.
熱処理は、50〜3000℃の温度範囲で行う。前記温度範囲
内における350〜1500℃の温度領域では炭素化が進行す
る過程であり、1500〜3000℃温度領域では黒鉛化が進行
する過程である。前記炭素化過程においては、炭素化の
初期過程、すなわち350〜550℃の温度範囲において、よ
り黒鉛結晶構造に類似した分子配向がなされているた
め、易黒鉛化性が炭素に与えられるばかりでなく、加圧
下において炭素化することによって、マトリックス自体
の炭素化収率が向上し、高密度化が期待できる。The heat treatment is performed in the temperature range of 50 to 3000 ° C. In the temperature range of 350 to 1500 ° C. in the temperature range, carbonization progresses, and in the temperature range of 1500 to 3000 ° C., graphitization progresses. In the carbonization process, in the initial stage of carbonization, that is, in the temperature range of 350 to 550 ° C., since the molecular orientation more similar to the graphite crystal structure is made, not only the graphitizable property is given to the carbon, By carbonizing under pressure, the carbonization yield of the matrix itself is improved, and higher density can be expected.
また、本発明においては、不融化ピッチファイバー、不
融化PANファイバー、熱硬化性樹脂ファイバーなどの、
いわゆる炭素前駆体繊維が使用できる。これらの炭素前
駆体繊維は、炭素化に際し収縮を伴うため、マトリック
スの収縮を考慮し、両者の収縮を同程度とすることが望
ましい。Further, in the present invention, such as infusible pitch fiber, infusible PAN fiber, thermosetting resin fiber,
So-called carbon precursor fibers can be used. Since these carbon precursor fibers are accompanied by shrinkage during carbonization, it is desirable to consider the shrinkage of the matrix and make the shrinkage of both the same.
このように製造された繊維強化複合材料は密度が高く、
この後、再含浸による緻密化処理を必要としないことが
期待される。The fiber reinforced composite material produced in this way has a high density,
After this, it is expected that no densification treatment by re-impregnation is required.
（実施例） 次に、本発明の実施例について説明する。(Example) Next, the Example of this invention is described.
実施例１ 100×300mmのカーボンフエルトを長手方向に巻き取り、
周りを炭素繊維によって保持した円柱状炭素繊維構造物
の下底面および側面に、10pの粘度に調整されたフェノ
ール樹脂を塗布し、50℃に温度調設された乾燥機中にお
いて１時間静置し硬化させ、樹脂硬化層を形成した。次
いで、内容積２リットルの容器内に、その上部開放面の
周囲に高さ40mmの壁を形成した前記円柱状炭素繊維構造
物を投入し、容器内を1Paまで減圧した。この後、減圧
下で0.5pの粘度に調整したフェノール樹脂を注入し、さ
らに窒素ガスによって10MPaに加圧した。次いで容器全
体を20℃/hrの昇温速度で800℃まで加熱して加圧炭素化
した。これによって嵩密度が1.35g/c、曲げ強度が200MP
aの炭素繊維強化炭素複合材料が得られた。Example 1 A 100 × 300 mm carbon felt was wound in the longitudinal direction,
Phenol resin adjusted to a viscosity of 10p is applied to the bottom and side surfaces of a cylindrical carbon fiber structure whose periphery is held by carbon fibers, and allowed to stand for 1 hour in a dryer whose temperature is adjusted to 50 ° C. It was cured to form a resin cured layer. Then, the cylindrical carbon fiber structure having a 40 mm-high wall formed around the upper open surface thereof was put into a container having an internal volume of 2 liters, and the pressure inside the container was reduced to 1 Pa. Then, a phenol resin adjusted to have a viscosity of 0.5 p was injected under reduced pressure, and further pressurized to 10 MPa with nitrogen gas. Next, the entire container was heated to 800 ° C. at a heating rate of 20 ° C./hr to carbonize under pressure. This gives a bulk density of 1.35g / c and a bending strength of 200MP.
A carbon fiber reinforced carbon composite material of a was obtained.
実施例２ 50×50×100mmの３次元的に織られたピッチ系不融化炭
素繊維構造物の上面を除いた外部表面に、1000pの粘度
に調整されたフェノール樹脂を塗布し、50℃に温度調設
された乾燥機中において１時間静置し硬化させ、樹脂硬
化層を形成した。次いで、内容積２リットルの容器内
に、その上部開放面の周囲に高さ40mmの壁を形成した前
記角柱状炭素繊維構造物を投入し、容器内を1Paまで減
圧した。この後、減圧下で0.8pの粘度に調整した石炭系
ピッチを注入し、さらに窒素ガスによって10MPaに加圧
した。次いで容器全体を20℃/hrの昇温速度で800℃まで
加熱して加圧炭素化した。これによって嵩密度が1.80g/
c、曲げ強度が1000MPaの３次元炭素繊維強化炭素複合材
料を得た。Example 2 A phenol resin adjusted to have a viscosity of 1000 p was applied to the outer surface of the 50 × 50 × 100 mm three-dimensionally woven pitch-based infusible carbon fiber structure excluding the upper surface, and the temperature was raised to 50 ° C. The resin cured layer was formed by allowing it to stand for 1 hour in the prepared dryer to cure the resin. Next, the prismatic carbon fiber structure having a 40 mm-high wall formed around the upper open surface thereof was put into a container having an internal volume of 2 liters, and the inside of the container was depressurized to 1 Pa. Thereafter, coal-based pitch adjusted to have a viscosity of 0.8 p was injected under reduced pressure, and further pressurized to 10 MPa with nitrogen gas. Next, the entire container was heated to 800 ° C. at a heating rate of 20 ° C./hr to carbonize under pressure. This gives a bulk density of 1.80 g /
c, a three-dimensional carbon fiber reinforced carbon composite material having a bending strength of 1000 MPa was obtained.
また、従来用いられる方法（Ｂ法）によっても上記複合
材料を製造した。すなわち炭素化処理された炭素繊維よ
りなる角柱状構造物を内容積２リットルの容器内に投入
し、容器内を1Paまで減圧した。次に、0.3pの粘度に調
整した石炭系ピッチを注入した後、10MPaに加圧し含浸
した。この後、ピッチ中より前記繊維構造物を取り出
し、窒素中10MPaの圧力下において20℃/hrの昇温速度で
800℃まで加熱して炭素化した。かかる３次元炭素繊維
強化炭素複合材料の嵩密度は1.25g/cであって本発明に
よる方法によって製造された物にはるかに劣るものであ
った。Further, the above-mentioned composite material was also produced by a method (method B) that has been conventionally used. That is, a prismatic structure composed of carbonized carbon fibers was put into a container having an internal volume of 2 liters, and the inside of the container was depressurized to 1 Pa. Next, after injecting coal-based pitch adjusted to have a viscosity of 0.3 p, pressure was applied to 10 MPa to impregnate. After this, take out the fiber structure from the pitch, under a pressure of 10 MPa in nitrogen at a heating rate of 20 ℃ / hr
Carbonized by heating to 800 ° C. The bulk density of such a three-dimensional carbon fiber reinforced carbon composite material was 1.25 g / c, which was far inferior to that produced by the method of the present invention.
また、上部および下部、あるいは周辺部および中心部の
嵩密度の差が大きく均一性に欠ける物であった。また、
その外部表面は炭素化工程においてマトリックスが流出
し、寸法安定性に欠ける物であった。Further, the difference in bulk density between the upper part and the lower part, or the peripheral part and the central part was large, and the product lacked uniformity. Also,
The external surface was a material lacking in dimensional stability due to the matrix flowing out in the carbonization process.
（発明の効果） 以上説明した如く、本発明によれば、立体的構造物の外
表面に一部の表面部分を除いて熱硬化性樹脂からなる硬
化物層を形成し、一部の表面部分をマトリックスの注入
口としたので、注入口より硬化物層内にマトリックスを
注入して、炭素繊維間を充填することができ、従来のよ
うな含浸−炭素化−削り出し加工や、含−炭素化のサイ
クルを繰り返さなければならないという問題がなく、さ
らに炭素化時においてマトリックスが流出することがな
いので、充填されるマトリックスの性質にかかわらず上
部および下部、あるいは周辺部および中心部の嵩密度の
差が小さく、寸法安定性に優れ、複雑形状にも高い精度
で効率よく対応できる繊維強化複合材料を得ることがで
きる。(Effects of the Invention) As described above, according to the present invention, a cured product layer made of a thermosetting resin is formed on the outer surface of a three-dimensional structure except a part of the surface part, and a part of the surface part is formed. Since the matrix is used as the injection port of the matrix, the matrix can be injected into the cured product layer through the injection port to fill the spaces between the carbon fibers, and the conventional impregnation-carbonization-cutting-out process and carbon-containing process can be performed. Since there is no problem of having to repeat the cycle of carbonization and the matrix does not flow out during carbonization, the bulk density of the upper and lower parts, or the peripheral and central parts, regardless of the nature of the matrix to be filled, It is possible to obtain a fiber-reinforced composite material having a small difference, excellent dimensional stability, and capable of efficiently dealing with complicated shapes with high accuracy.
また、本発明の製造方法によれば、従来のような含浸−
炭素化−削り出し加工や、含浸−炭素化のサイクルを繰
り返しが不要となり、このためマトリックスの無駄を大
幅に低減でき、原料および製造コストを低減することが
できる。Further, according to the production method of the present invention, impregnation as in the conventional
It is not necessary to repeat the carbonization-cutting-out process and the impregnation-carbonization cycle, so that the waste of the matrix can be significantly reduced, and the raw material and the manufacturing cost can be reduced.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 35/80 Ｃ０８Ｊ 5/04 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical indication C04B 35/80 C08J 5/04
Claims (5)
を含むことを特徴とする繊維強化複合材料の製造方法。 （イ）主として炭素繊維から成る立体的構造物を形成す
る工程； （ロ）前記立体的構造物の外表面に一部の表面部分を除
いて熱硬化性樹脂からなる硬化物層を形成し、前記一部
の表面部分をマトリックスの注入口とする工程： （ハ）前記（ロ）の工程で得られた立体的構造物の注入
口より硬化物層内にマトリックスを注入し、炭素繊維間
を充填する工程： （ニ）前記（ハ）工程で得られたマトリックスが充填さ
れた立体的構造物を熱処理する工程。1. A method for producing a fiber-reinforced composite material, which comprises the following steps (a), (b), (c) and (d). (A) a step of forming a three-dimensional structure mainly composed of carbon fibers; (b) forming a cured product layer made of a thermosetting resin on the outer surface of the three-dimensional structure except a part of the surface portion, Step of using the above-mentioned part of the surface as a matrix injection port: (C) The matrix is injected into the cured product layer through the injection port of the three-dimensional structure obtained in the step (B), and the space between the carbon fibers is Filling step: (d) A step of heat-treating the three-dimensional structure filled with the matrix obtained in the step (c).
配列される繊維であることを特徴とする特許請求の範囲
第１項記載の繊維強化複合材料の製造方法。2. The method for producing a fiber-reinforced composite material according to claim 1, wherein the three-dimensional structure is fibers arranged in at least two directions.
であることを特徴とする特許請求の範囲第１項記載の繊
維強化複合材料の製造方法。3. The method for producing a fiber-reinforced composite material according to claim 1, wherein the three-dimensional structure has a self-supporting shape.
化性樹脂、及び石炭系もしくは石油系の重質油、ター
ル、ピッチであることを特徴とする特許請求の範囲第１
項記載の繊維強化複合材料の製造方法。4. The thermoplastic resin, the thermosetting resin, and the heavy oil of coal or petroleum, tar, and pitch are used as the matrix.
A method for producing the fiber-reinforced composite material according to the item.
は炭素化、あるいはさらに黒鉛化する温度であることを
特徴とする特許請求の範囲第１項記載の繊維強化複合材
料の製造方法。5. The method for producing a fiber-reinforced composite material according to claim 1, wherein the heat treatment is performed at a temperature at which the matrix is hardened, carbonized, or graphitized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62048460A JPH07100352B2 (en) | 1987-03-02 | 1987-03-02 | Method for manufacturing fiber-reinforced composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62048460A JPH07100352B2 (en) | 1987-03-02 | 1987-03-02 | Method for manufacturing fiber-reinforced composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63214431A JPS63214431A (en) | 1988-09-07 |
| JPH07100352B2 true JPH07100352B2 (en) | 1995-11-01 |
Family
ID=12803976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62048460A Expired - Lifetime JPH07100352B2 (en) | 1987-03-02 | 1987-03-02 | Method for manufacturing fiber-reinforced composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07100352B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149877A (en) * | 1981-03-09 | 1982-09-16 | Toho Beslon Co | Carbon composite material and manufacture |
| JPH0829987B2 (en) * | 1986-10-23 | 1996-03-27 | 三菱化学株式会社 | Method for producing carbon fiber reinforced carbon composite material |
-
1987
- 1987-03-02 JP JP62048460A patent/JPH07100352B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63214431A (en) | 1988-09-07 |
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