JPH0314623B2 - - Google Patents

Info

Publication number
JPH0314623B2
JPH0314623B2 JP60148010A JP14801085A JPH0314623B2 JP H0314623 B2 JPH0314623 B2 JP H0314623B2 JP 60148010 A JP60148010 A JP 60148010A JP 14801085 A JP14801085 A JP 14801085A JP H0314623 B2 JPH0314623 B2 JP H0314623B2
Authority
JP
Japan
Prior art keywords
fibers
resin
fiber
rod
continuous fibers
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
Application number
JP60148010A
Other languages
English (en)
Other versions
JPS629940A (ja
Inventor
Minoru Sugita
Teruyuki Nakatsuji
Tadashi Fujisaki
Minoru Sawaide
Noboru Ishikawa
Yasuo Inada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimizu Construction Co Ltd
Original Assignee
Shimizu Construction Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shimizu Construction Co Ltd filed Critical Shimizu Construction Co Ltd
Priority to JP60148010A priority Critical patent/JPS629940A/ja
Priority to US06/881,697 priority patent/US4876143A/en
Publication of JPS629940A publication Critical patent/JPS629940A/ja
Publication of JPH0314623B2 publication Critical patent/JPH0314623B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0046—Producing rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/088—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of non-plastics material or non-specified material, e.g. supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
    • B29C70/222—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being shaped to form a three dimensional configuration
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/06—Rods, e.g. connecting rods, rails, stakes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
    • Y10T428/249942—Fibers are aligned substantially parallel
    • Y10T428/249943—Fiber is nonlinear [e.g., crimped, sinusoidal, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
    • Y10T428/249942—Fibers are aligned substantially parallel
    • Y10T428/249945—Carbon or carbonaceous fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
    • Y10T428/249942—Fibers are aligned substantially parallel
    • Y10T428/249946—Glass fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
    • Y10T428/249942—Fibers are aligned substantially parallel
    • Y10T428/249947—Polymeric fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2951—Metal with weld modifying or stabilizing coating [e.g., flux, slag, producer, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2951—Metal with weld modifying or stabilizing coating [e.g., flux, slag, producer, etc.]
    • Y10T428/2953—Titanium compound in coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2962—Silane, silicone or siloxane in coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2967—Synthetic resin or polymer
    • Y10T428/2969—Polyamide, polyimide or polyester

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Textile Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Reinforced Plastic Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforcement Elements For Buildings (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、高強度でかつ破断伸びが大きい繊
維強化樹脂製棒状体に関する。
〔従来技術とその問題点〕
繊維強化樹脂成形品、いわゆるFRPは、比強
度が高い、耐食性に優れる、成形性がよく形状の
自由度が高いなどの特長を有し、種々の構造材料
等に広く使用されている。
ところで、第５図はFRPと鋼との応力一歪曲
線（Ｓ−Ｓ曲線）を示すグラフであるが、このグ
ラフからもわかるように、FRPは塑性変形がほ
とんどなく、延性に極めて低く、いわゆる強いが
粘がないことがわかる。一方、鋼は塑性変形が大
きく、強くかつ粘り強いことがわかる。
よつて、FRPにおいても“粘り強さ”を付与
できれば、鋼等の金属材料と同様の破壊挙動を示
し、金属材料の代替品としてより一層の用途が広
がることになる。
〔発明の目的〕
この発明は、上述の要望を満たすFRPの一つ
としての繊維強化樹脂製棒状体を提供することを
目的とするもので、補強繊維の一部または全部
に、連続繊維を多数本撚り合せた撚紐状連続繊維
を用いることにより適度の破断伸びを持たせるよ
うにしたものである。
〔実施例〕
第１図は、この発明の繊維強化樹脂製棒状体の
第１の例を示すもので、図中符号１はこの棒状体
の補強繊維の一方をなす直線連続繊維である。こ
の直線連続繊維１は、ガラス繊維、カーボン繊
維、ホウ素繊維、セラミツク繊維、金属繊維、ビ
ニロン繊維、ナイロン繊維、ポリエステル繊維、
アラミド繊維などの繊維の長繊維を50〜200本合
糸したストランドをさらに８〜120本束ねたロー
ビングまたはトウが用いられる。繊維としては上
記種々の繊維を単独もしくは２種以上適宜組合せ
て使用することができる。これらの繊維はマトリ
ツクス樹脂に応じてシラン処理、ボラン処理など
の表面処理を施しておくこともできる。
また、図中符号２は、棒状体の補強繊維の他方
をなす撚紐状連続繊維である。この撚紐状連続２
は、直線連続繊維１を構成するロービングまたは
トウと同種もしくは異種のロービングまたはトウ
をさらに複数本撚り合わせてなるものである。撚
り合せは同心撚、、集合撚、複合撚のいずれでも
よく、またその他の撚り合せ方法でもよい。
さらに、図中符号８はマトリツクスとなる合成
樹脂である。この合成樹脂３としては、特に限定
されず、エポキシ樹脂、不飽和ポリエステル樹
脂、ポリウレタン樹脂、ジアリルフタレート樹
脂、フエノール樹脂などの熱硬化性樹脂やポリア
セタール樹脂、飽和ポリエステル樹脂、ポリアミ
ド樹脂、ポリスチロール樹脂、ポリカーボネイト
樹脂、塩化ビニル樹脂、ポリエチレン樹脂、ポリ
プロピレン樹脂、アクリル樹脂などの熱可塑性樹
脂が棒状体の用途等に応じて適宜選択される。
そして、上記直線連続繊維１と撚紐状連続繊維
２とは、いずれも当然のことながら棒状体の長手
方向に配向されており、この例にあつては多くの
直線連続繊維１…と多くの撚紐状連続繊維２…と
が第１図のように特別の規則性なしにランダムに
配置されている。また、これらの直線連続繊維１
…および撚紐状連続繊維２…は、合成樹脂３中に
若干の引張応力が加わつた状態で埋め込まれてい
る。
棒状体中の補強繊維の割合（Vf）は20〜70体
積％の範囲とされ、20体積％未満では十分な補強
効果が得られず、70体積％を越えるものは製造が
困難である。また、補強繊維中の直線連続繊維１
と撚紐状連続繊維２との割合は、撚紐状連続繊維
２が少なくなれば破断伸びが得られなくなるの
で、撚紐状連続繊維２が20〜100体積％の範囲と
され、好ましくは50〜90体積％の範囲とされる。
また、直線連続繊維１…および撚紐状連続繊維
２…は、棒状体中では直線状に配置されてもよ
く、あるいは直線連続繊維１…および撚紐状連続
繊維２…がそれぞれ別々にもしくは相互に撚り合
されて長手方向に配置されていてもよい。撚合の
場合には、同様に同心撚、集合撚、複合撚などが
採用される。
このような構造の棒状体を得るには、例えば所
定本数の直線連続繊維１…と撚紐状連続繊維２…
とをそれぞれ送り出し、これらを未硬化液状のエ
ポキシ樹脂等が満された樹脂含浸槽に連続して送
り込み、ここで樹脂含浸する。ついで、樹脂含浸
された繊維群を束ねて円筒状の引抜き金型に通
し、樹脂を硬化させることにより、連続的に長尺
の棒状体を製造することができる。この際、前述
のように直線連続繊維１…および撚紐状連続繊維
２…とに所定の長手方向の張力がかかつた状態で
樹脂を硬化させる必要があるので、直線連続繊維
１…および撚紐状連続繊維２…は所定のバツクテ
ンシヨンがかけられた状態で金型に送り込まれ
る。
〔作用〕
このような棒状体にあつては、直線連続繊維１
が第２図中ａのような応力一歪挙動を示し、撚紐
状連続繊維２が第２図中ｂのような応力一歪挙動
を示すことから、第２図中ｃに示すような金属材
材料に似た弾性率が高く、破断伸びの大きな破壊
挙動を示すようになり、金属材料と同様の構造設
計が可能となる。
特に補強繊維としてカーボン繊維などの高弾性
繊維を選び、その配合量（Vf）を60〜70体積％
程度にした棒状体は、棒鋼に似た弾性率、破断強
度、破断伸び等を示すようになる。よつて、これ
を例えば鉄筋コンクリート用鉄筋として使用する
ことも可能であり、従来の棒鋼製鉄筋にはない軽
量性、耐食性、非磁性等の特性を有するものが得
られる。
〔他の実施例〕
第３図はこの発明の繊維強化樹脂製棒状体の第
２の例を示すもので、第１図に示すものと同一構
成部分には同一符号を付してその説明を省略す
る。この例の棒状体は、多数の直線連続繊維１が
…が中心部に集中して配置され、その外側にこれ
ら直線連続繊維１…を囲むように撚紐状連続繊維
２…が配置されてなるものである。
また、第４図はこの発明の棒状体の第３の例を
示すもので、この例では撚紐状連続繊維２…が中
心部に配され、その外側に直線連続繊維１…が置
かれたものである。
これらの構造のものでも、若干の破壊挙動に差
が生ずるものの同様の作用効果を得ることができ
る。
なお、棒状体の外径、長さなどは適宜用途に応
じたものとすることができる。
〔発明の効果〕
以上説明したように、この発明の繊維強化樹脂
製製棒状体は、補強繊維の一部または全部を連続
繊維を撚つて形成した撚紐状連続繊維としたもの
であるので、高弾性率、高破断強度を有するとと
もに適度の破断伸びを有するものとなり、その破
壊挙動が鋼等の金属材料に似たものとなり、広い
用途に使用できるようになる。
特に、補強繊維にカーボン繊維などの高弾性繊
維を用い、その含有率を60〜70体積％とし、撚紐
状連続繊維の割合を50〜90体積％程度としたもの
では、棒鋼に近い機械的特性を有するものにな
り、よつてこれを例えば鉄筋コンクリート用鉄筋
として使用することが可能となり、軽量性、耐食
性、非磁性といつた鋼製鉄筋にはない新しい特性
を持つた鉄筋が得られることになる。
【図面の簡単な説明】
第１図、第３図、第４図はいずれもこの発明の
棒状体の例を示す概略断面図、第２図は直線連続
繊維、撚紐状連続繊維およびこれらを複合したも
のの応力一歪曲線を示すグラフ、第５図は鋼およ
びFRPの応力一歪曲線を示すグラフである。 １……直線連続繊維、２……撚紐状連続繊維、
３……合成樹脂。

Claims (1)

  1. 【特許請求の範囲】 １ 補強繊維と合成樹脂とからなる繊維強化樹脂
    製棒状体において、 補強繊維の一部または全部が連続繊維を撚つて
    形成した撚紐状連続繊維であることを特徴とする
    繊維強化樹脂製棒状体。
JP60148010A 1985-07-05 1985-07-05 繊維強化樹脂製棒状体 Granted JPS629940A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP60148010A JPS629940A (ja) 1985-07-05 1985-07-05 繊維強化樹脂製棒状体
US06/881,697 US4876143A (en) 1985-07-05 1986-07-03 Rod material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60148010A JPS629940A (ja) 1985-07-05 1985-07-05 繊維強化樹脂製棒状体

Publications (2)

Publication Number Publication Date
JPS629940A JPS629940A (ja) 1987-01-17
JPH0314623B2 true JPH0314623B2 (ja) 1991-02-27

Family

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Application Number Title Priority Date Filing Date
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Country Status (2)

Country Link
US (1) US4876143A (ja)
JP (1) JPS629940A (ja)

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Also Published As

Publication number Publication date
US4876143A (en) 1989-10-24
JPS629940A (ja) 1987-01-17

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