JP2018177898A - Manufacturing method of tow prepreg wound body - Google Patents

Manufacturing method of tow prepreg wound body Download PDF

Info

Publication number
JP2018177898A
JP2018177898A JP2017076657A JP2017076657A JP2018177898A JP 2018177898 A JP2018177898 A JP 2018177898A JP 2017076657 A JP2017076657 A JP 2017076657A JP 2017076657 A JP2017076657 A JP 2017076657A JP 2018177898 A JP2018177898 A JP 2018177898A
Authority
JP
Japan
Prior art keywords
tow prepreg
tow
prepreg
winding
main body
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.)
Pending
Application number
JP2017076657A
Other languages
Japanese (ja)
Inventor
上田 直樹
Naoki Ueda
直樹 上田
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP2017076657A priority Critical patent/JP2018177898A/en
Publication of JP2018177898A publication Critical patent/JP2018177898A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Reinforced Plastic Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a tow prepreg wound body which can suppress insufficient curing due to environmental degradation such as moisture absorption and insufficient coiling in FW due to irregular shape of winding as possible.SOLUTION: A manufacturing method includes: a step forming a tow prepreg body part 11 by winding tow prepreg around a bobbin 9 to one direction; and a step forming a tow prepreg outer layer part 12 covering the whole outer lyer of the prepreg body part 11 by winding the tow prepreg helically on whole outer layer of the prepreg body part 11.SELECTED DRAWING: Figure 1

Description

本発明は、連続繊維状の繊維束(トウ)に樹脂を含浸してなるトウプリプレグをボビンに巻き付けてなるトウプリプレグ捲回体の製造方法に関するものである。   The present invention relates to a method for producing a tow prepreg wound body in which a tow prepreg obtained by impregnating a continuous fiber-like fiber bundle (tow) with a resin is wound around a bobbin.

従来から、曲面形状を有する繊維強化複合材料の成形においては、製造現場で樹脂を調合し、繊維束(トウ)にその樹脂を含浸させながら曲面マンドレルに巻付け成形するフィラメントワインド法(以下、FWという)が採用されてきたが、樹脂特性に高性能なものが望めないことや、作業の簡便さから、予めトウに熱硬化性樹脂を含浸させたトウプリプレグ(TPP:Tow-Prepreg)をボビンに巻き取っておき、使用に際して、当該トウプリプレグをボビンから繰り出して利用することが行われている(例えば、下記特許文献1等参照)。   Conventionally, in forming a fiber-reinforced composite material having a curved surface shape, a filament wound method (hereinafter referred to as FW) in which a resin is prepared at a manufacturing site, and a fiber bundle (tow) is impregnated with the resin and wound around a curved mandrel. Has been adopted, but due to the fact that high performance can not be expected from the resin properties and the ease of operation, a tow prepreg (TPP: Tow-Prepreg) in which a tow is impregnated with a thermosetting resin beforehand is used as a bobbin At the time of use, the tow prepreg is taken out from a bobbin and used at the time of use (see, for example, Patent Document 1 below).

ところで、例えば熱硬化性樹脂としてエポキシ樹脂を用いる場合、このエポキシ樹脂は、通常、酸無水物等エポキシ樹脂と反応し得る官能基を有する硬化剤と組み合わせて用いられるが、使用に至るまでの間、トウプリプレグを巻き付けたボビンを放置しておくと、酸無水物が大気中の水等と反応して吸湿(吸水)してしまい(図4参照)、エポキシ樹脂(酸無水物)が変質して、硬化不良の原因となる。   By the way, when using an epoxy resin as a thermosetting resin, for example, this epoxy resin is usually used in combination with a curing agent having a functional group capable of reacting with the epoxy resin such as acid anhydride, If the bobbin wound with tow prepreg is left standing, the acid anhydride reacts with water in the air and absorbs moisture (water absorption) (see Fig. 4), and the epoxy resin (acid anhydride) is denatured. And cause curing failure.

このような吸湿等の環境劣化に対処するため、特許文献2には、マトリックス樹脂を含浸した強化繊維ストランドを1本又は複数本束ねて未硬化繊維強化プラスチック製素線の芯材を形成し、該芯材の周囲に第1外層として吸湿防止及び電食防止の効果を持つ被覆繊維を配し、次に該第1外層の周囲に第2外層としての紫外線防止及び摩耗防止の効果を持つ被覆繊維を配して3層構造を特徴とする未硬化繊維強化プラスチック製素線を形成し、該未硬化繊維強化プラスチック製素線を加熱硬化する方法が提案されている。   In order to cope with such environmental deterioration such as moisture absorption, in Patent Document 2, one or a plurality of reinforcing fiber strands impregnated with a matrix resin are bundled to form a core material of uncured fiber-reinforced plastic strands, A coating fiber having an effect of preventing moisture absorption and electric corrosion as a first outer layer is disposed around the core material, and a coating having an effect of preventing ultraviolet light and an abrasion as a second outer layer is then provided around the first outer layer. A method is proposed in which fibers are arranged to form an uncured fiber-reinforced plastic strand characterized by a three-layer structure, and the uncured fiber-reinforced plastic strand is heated and cured.

また、特許文献3には、撥水性ボビンに所定の水分率の炭素繊維束を巻き取る方法が提案されている。   Further, Patent Document 3 proposes a method of winding a carbon fiber bundle of a predetermined moisture content around a water repellent bobbin.

特開2000−191807号公報JP 2000-191807 A 特開2000−027082号公報JP, 2000-027082, A 特開2004−168528号公報JP, 2004-168528, A

しかしながら、特許文献2に所載の従来技術では、マトリックス樹脂を含浸した繊維束からなるトウプリプレグとしての未硬化繊維強化プラスチック製素線とは別に、第1外層を形成する吸湿防止及び電食防止の効果を持つ被覆繊維や第2外層を形成する紫外線防止及び摩耗防止の効果を持つ被覆繊維を用意する必要がある。   However, in the prior art described in Patent Document 2, moisture absorption prevention and electric corrosion prevention to form the first outer layer separately from the uncured fiber reinforced plastic strands as a tow prepreg consisting of fiber bundles impregnated with matrix resin It is necessary to provide a coated fiber having the effect of (1) and a coated fiber having the effects of preventing ultraviolet light and abrasion to form the second outer layer.

また、特許文献3に所載の従来技術では、ボビンの変形は抑えられるものの、炭素繊維束に樹脂を含浸させたトウプリプレグ自体の吸湿等による変質を抑止することはできない。また、トウプリプレグを構成する炭素繊維束の組成が制約されるといった懸念もある。   Further, in the prior art described in Patent Document 3, although the deformation of the bobbin can be suppressed, it is not possible to suppress the deterioration of the tow prepreg itself in which the carbon fiber bundle is impregnated with the resin due to moisture absorption or the like. There is also a concern that the composition of the carbon fiber bundle constituting the tow prepreg is restricted.

また、上記従来技術の他、使用に当たって、ボビンに一方向で巻き付けられたトウプリプレグの一部(外周部分)を剥がして廃棄することも考えられるが、前述した吸湿等による環境劣化は、トウプリプレグの上下両端部でも発生するため、トウプリプレグの外周部分のみを剥がすのみでは不十分である。   In addition to the above-mentioned prior art, it is also conceivable to peel off and discard a part (peripheral part) of the tow prepreg wound in one direction around the bobbin before use. In the upper and lower ends of the above, it is not sufficient to peel off only the outer peripheral portion of the tow prepreg.

さらに、上記した吸湿等の環境劣化の問題に加えて、ボビンに巻き付けられたトウプリプレグの上下両端部では、型崩れが発生しやすく、FW時の繊維絡まりの原因となるという問題もある。   Furthermore, in addition to the problem of environmental deterioration such as the moisture absorption described above, there is also a problem that the upper and lower end portions of the tow prepreg wound around the bobbin are likely to be deformed and cause fiber entanglement at the time of FW.

本発明は上記する問題に鑑みてなされたものであり、繊維束に樹脂を含浸してなるトウプリプレグをボビンに巻き付けてなるトウプリプレグ捲回体を製造するに当たり、吸湿等の環境劣化に起因する硬化不良、型崩れに起因するFW時の巻付け不良等を可及的に抑えることのできるトウプリプレグ捲回体の製造方法を提供することを目的とする。   The present invention has been made in view of the problems described above, and is caused by environmental deterioration such as moisture absorption when producing a tow prepreg wound body in which a tow prepreg formed by impregnating a fiber bundle with a resin is wound around a bobbin. It is an object of the present invention to provide a method for producing a tow prepreg wound body which can suppress, as much as possible, curing failure, winding failure at FW due to shape loss, and the like.

前記目的を達成すべく、本発明によるトウプリプレグ捲回体の製造方法は、連続繊維状の繊維束に樹脂を含浸してなるトウプリプレグがボビンに巻き付けられたトウプリプレグ捲回体の製造方法であって、前記トウプリプレグを前記ボビンに一定方向に巻き付けてトウプリプレグ本体部を形成する工程と、前記プリプレグ本体部の表層全体に前記トウプリプレグをヘリカル巻きし、前記プリプレグ本体部の表層全体を覆うトウプリプレグ表層部を形成する工程と、を含む方法である。   In order to achieve the above object, a method for producing a tow prepreg wound body according to the present invention is a method for producing a tow prepreg wound body in which a tow prepreg formed by impregnating a continuous fiber fiber bundle with a resin is wound around a bobbin. And winding the tow prepreg in a predetermined direction to form a tow prepreg main body, helically winding the tow prepreg over the entire surface of the prepreg main body, and covering the entire surface of the prepreg main body. Forming a tow prepreg surface layer portion.

本発明によれば、トウプリプレグ本体部を製造した後、トウプリプレグ本体部の表層全体を覆うトウプリプレグ表層部を製造することで、トウプリプレグ捲回体を放置した場合でも、トウプリプレグ表層部にしか吸湿されないため、使用の際には、トウプリプレグ表層部を引き剥がすことで、吸湿等により劣化していないトウプリプレグ本体部を利用できるので、吸湿等の環境劣化に起因する硬化不良、型崩れに起因するFW時の巻付け不良等を可及的に抑えることができる。   According to the present invention, after producing the tow prepreg main body portion, the tow prepreg surface layer portion covering the entire surface layer of the tow prepreg main body portion is produced, so that the tow prepreg surface layer portion Since the tow prepreg main body which is not deteriorated due to moisture absorption can be used by peeling off the surface layer of the tow prepreg when using it, curing failure due to environmental deterioration such as moisture absorption, or shape loss It is possible to minimize winding defects etc. at the time of FW caused by

本発明に係るトウプリプレグ捲回体の製造方法を説明する図であり、(A)はトウプリプレグ本体部形成工程、(B)はトウプリプレグ表層部形成工程を説明する図である。It is a figure explaining the manufacturing method of the tow prepreg winding body which concerns on this invention, (A) is a tow prepreg main body part formation process, (B) is a figure explaining a tow prepreg surface layer part formation process. 図1に示す製造方法で製造されるトウプリプレグ捲回体の一例を示す縦断面図である。It is a longitudinal cross-sectional view which shows an example of the tow prepreg winding body manufactured with the manufacturing method shown in FIG. 図1に示す製造方法で製造されるトウプリプレグ捲回体の一例を示す上面図である。It is a top view which shows an example of the tow prepreg winding body manufactured by the manufacturing method shown in FIG. トウプリプレグにおける吸湿反応を説明する図。The figure explaining the moisture absorption reaction in a tow prepreg.

以下、図面を参照して本発明の実施形態を説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<繊維束について>
本実施形態においてトウプリプレグに用いる補強用繊維としては、通常の繊維強化複合材料の補強に用いる強化繊維であればよく、特に限定はないが、例えば、炭素繊維、黒鉛繊維、ガラス繊維などの無機繊維、ボロンやアルミナ、炭化ケイ素、窒化ケイ素、ジルコニアなどのセラミック繊維、銅や鋼、アルミニウム、ステンレスなどの金属繊維、ポリアミドやポリエステル、セルロース、ポリプロピレン、ポリエチレンなどの有機繊維のいずれか一種もしくは二種以上の混合物等が挙げられる。中でも、高強度・高伸度かつ軽量の炭素繊維、黒鉛繊維が好適に用いられる。
<About fiber bundle>
The reinforcing fibers used for the tow prepreg in the present embodiment may be any reinforcing fibers used for reinforcing ordinary fiber-reinforced composite materials, and are not particularly limited. For example, inorganic materials such as carbon fibers, graphite fibers, and glass fibers Fiber, ceramic fiber such as boron or alumina, silicon carbide, silicon nitride or zirconia, metal fiber such as copper or steel, aluminum or stainless steel, or organic fiber such as polyamide or polyester, cellulose, polypropylene or polyethylene The above mixture and the like can be mentioned. Among them, carbon fiber and graphite fiber having high strength, high elongation and light weight are preferably used.

<樹脂について>
本実施形態においてトウプリプレグに用いる樹脂(マトリックス樹脂)としては、熱可塑性樹脂あるいは熱硬化性樹脂のいずれでもよいが、熱硬化性樹脂が好ましく、熱硬化性樹脂の代表的な例としては、エポキシ樹脂、フェノール樹脂、メラミン樹脂、不飽和ポリエステル樹脂、ポリウレタン、マレイミド樹脂、ポリイミド樹脂、シアン酸エステル末端を有する樹脂、アセチレン末端を有する樹脂、ビニル末端を有する樹脂、アリル末端を有する樹脂、ナジック酸末端を有する樹脂等が挙げられ、熱可塑性樹脂としては、アクリル樹脂、ポリエーテルケトン等が挙げられる。中でも、エポキシ樹脂は、補強用繊維との接着性に優れ、得られる機械物性が向上するので、好適に用いられる。
<About resin>
The resin (matrix resin) used for the tow prepreg in the present embodiment may be either a thermoplastic resin or a thermosetting resin, but a thermosetting resin is preferred, and a typical example of a thermosetting resin is epoxy Resin, phenolic resin, melamine resin, unsaturated polyester resin, polyurethane, maleimide resin, polyimide resin, resin having cyanate ester end, resin having acetylene end, resin having vinyl end, resin having allyl end, nadic acid end Examples of the thermoplastic resin include acrylic resins and polyether ketones. Among them, epoxy resins are suitably used because they are excellent in adhesion to reinforcing fibers and the mechanical properties to be obtained are improved.

熱硬化性樹脂としてエポキシ樹脂を使用する場合、通常、硬化剤と組み合わせて用いられるが、本実施形態において用いられる硬化剤は、特に制限はなく、アミノ基、酸無水物等エポキシ樹脂と反応し得る官能基を有するものを適宜用いることが可能である。   When an epoxy resin is used as a thermosetting resin, it is usually used in combination with a curing agent, but the curing agent used in this embodiment is not particularly limited, and reacts with an epoxy resin such as an amino group or an acid anhydride. It is possible to appropriately use one having a functional group to be obtained.

<トウプリプレグ捲回体について>
図1は、本発明に係るトウプリプレグ捲回体の製造方法を説明する図であり、図1(A)はトウプリプレグ本体部の形成工程、図1(B)はトウプリプレグ表層部の形成工程を説明する図である。また、図2及び図3は、図1に示す製造方法で製造されるトウプリプレグ捲回体の一例を示す図であり、図2はその縦断面図、図3はその上面図である。
<About tow pre-preg wound body>
FIG. 1 is a view for explaining the method for producing a tow prepreg wound body according to the present invention, and FIG. 1 (A) is a step of forming a tow prepreg main body, and FIG. 1 (B) is a step of forming a tow prepreg surface layer FIG. 2 and 3 are diagrams showing an example of the tow prepreg wound body manufactured by the manufacturing method shown in FIG. 1, FIG. 2 is a longitudinal sectional view thereof, and FIG. 3 is a top view thereof.

例えば紙管やプラスチック管からなる円筒状のボビン9にトウプリプレグを巻き付けてなるトウプリプレグ捲回体(TPPボビンともいう)10を製造する工程は、主に、トウプリプレグ本体部の形成工程とトウプリプレグ表層部の形成工程とで構成される。   For example, the process of manufacturing a tow prepreg wound body (also referred to as TPP bobbin) 10 formed by winding a tow prepreg around a cylindrical bobbin 9 made of a paper tube or a plastic tube mainly includes the process of forming the tow prepreg main body and the tow. It is comprised by the formation process of a prepreg surface layer part.

《トウプリプレグ本体部形成工程》
すなわち、トウプリプレグ捲回体10を製造するに当たっては、まず、前述の補強用繊維を複数本(例えば、数千〜数万本程度)束ねた繊維束(トウ)に樹脂を含浸してなる帯状ないし扁平状のトウプリプレグを円筒状のボビン9の外周に所定の張力で略一方向(例えば、ボビン9の軸線方向で視て時計回りもしくは反時計回り)に巻き付ける(フープ巻ともいう)。これにより、ボビン9周りに略円筒状のトウプリプレグ本体部11が形成される(図1(A)参照)。
<< Process for forming tow prepreg main body >>
That is, when manufacturing the tow prepreg wound body 10, first, a band formed by impregnating a resin into a fiber bundle (tow) obtained by bundling a plurality (for example, several thousands to several tens of thousands) of the reinforcing fibers described above The flat tow prepreg is wound around the outer circumference of the cylindrical bobbin 9 in a substantially single direction (for example, clockwise or counterclockwise as viewed in the axial direction of the bobbin 9) with a predetermined tension (also referred to as hoop winding). Thereby, a substantially cylindrical tow prepreg main body 11 is formed around the bobbin 9 (see FIG. 1A).

《トウプリプレグ表層部形成工程》
次いで、前記ボビン9に巻き付けられたトウプリプレグ本体部11の表面(表層)に、前記トウプリプレグをヘリカル巻きする(つまり、軸線に対して傾斜した向きで巻き付ける)。このときの張力は、トウプリプレグ本体部11の変形(配向の乱れ)防止の観点から、前記トウプリプレグ本体部11の形成時の張力より低く設定する。また、ここでは、トウプリプレグの交差点を極力少なくして隙間を空けないように(つまり、緊密に)巻き付ける(特に、図3参照)。これにより、トウプリプレグ本体部11の外周面11a、上端面11b、及び下端面11cを含む表面(表層)全体を覆うトウプリプレグ表層部12が形成される(図1(B)、図2参照)。
<< Process for forming a tow prepreg surface layer >>
Next, the tow prepreg is helically wound on the surface (surface layer) of the tow prepreg main body 11 wound around the bobbin 9 (that is, wound in a direction inclined with respect to the axis). The tension at this time is set to be lower than the tension at the time of formation of the tow prepreg main body 11 from the viewpoint of preventing deformation (disordering of the orientation) of the tow prepreg main body 11. Here, the tow prepregs are wound as closely as possible (that is, tightly) with as little intersections as possible and with no gaps (in particular, see FIG. 3). Thus, the tow prepreg surface layer 12 is formed to cover the entire surface (surface layer) including the outer peripheral surface 11a, the upper end surface 11b, and the lower end surface 11c of the tow prepreg main body 11 (see FIG. 1B, FIG. 2). .

なお、トウプリプレグ表層部12の形成時の張力や巻付け量(厚み)等は、当該トウプリプレグ捲回体10の使用までの保管環境や保管期間等に応じて、適宜に設定することができる。   The tension and amount of winding (thickness) at the time of formation of the tow prepreg surface layer portion 12 can be appropriately set according to the storage environment and storage period until the use of the tow prepreg wound body 10 and the like. .

上記工程を経て、前記ボビン9周りに、内部にトウプリプレグ本体部11が形成されるとともに、その外側にトウプリプレグ表層部12が形成されたトウプリプレグ捲回体10が製造される(特に、図2参照)。   Through the above steps, the tow prepreg main body 11 is formed around the bobbin 9 and the tow prepreg wound body 10 in which the tow prepreg surface layer 12 is formed on the outside thereof is manufactured (in particular, FIG. 2).

なお、前述のトウプリプレグ本体部11の形成工程とトウプリプレグ表層部12の形成工程とは、連続的に(すなわち、途中で前記トウプリプレグの巻き方(角度)を変えて)実施してもよいし、別個に(すなわち、前記トウプリプレグの巻き方(角度)を変える段階で前記トウプリプレグを一旦切断して)実施してもよい。連続的に実施する場合には、後述する使用時に、トウプリプレグ表層部12とトウプリプレグ本体部11の一部のトウプリプレグを巻き剥がし、そこでトウプリプレグを切断してトウプリプレグ本体部11のトウプリプレグを利用すればよい。   The forming process of the tow prepreg main body 11 and the forming process of the tow prepreg surface layer 12 may be performed continuously (that is, the winding method (angle) of the tow prepreg may be changed halfway). Alternatively, the tow prepreg may be cut separately (that is, once cut in the step of changing the winding method (angle) of the tow prepreg). In the case of continuous implementation, at the time of use, which will be described later, the tow prepreg of the tow prepreg surface layer portion 12 and a part of the tow prepreg main body portion 11 is unrolled and cut off. You can use

また、前述のトウプリプレグ本体部11の形成工程で用いるトウプリプレグとトウプリプレグ表層部12の形成工程で用いるトウプリプレグとは、同種あるいは異種のいずれでもよい。例えば、トウプリプレグ本体部11への巻付けやすさの観点から、トウプリプレグ表層部12の形成工程で用いるトウプリプレグを、トウプリプレグ本体部11の形成工程で用いるトウプリプレグより柔軟なものを用いてもよいし、コスト削減の観点から、トウプリプレグ表層部12の形成工程で用いるトウプリプレグを、トウプリプレグ本体部11の形成工程で用いるトウプリプレグより安価なものを用いてもよい。また、同種のトウプリプレグを用いる場合には、生産性が良くなるという利点がある。   Further, the tow prepreg used in the step of forming the tow prepreg main body 11 and the tow prepreg used in the step of forming the tow prepreg surface layer portion 12 may be the same or different. For example, from the viewpoint of ease of winding on the tow prepreg main body 11, using a tow prepreg used in the process of forming the tow prepreg surface layer 12 is more flexible than the tow prepreg used in the process of forming the tow prepreg main body 11. Alternatively, from the viewpoint of cost reduction, the tow prepreg used in the step of forming the tow prepreg surface layer portion 12 may be cheaper than the tow prepreg used in the step of forming the tow prepreg main body portion 11. In addition, in the case of using the same tow prepreg, there is an advantage that the productivity is improved.

前記トウプリプレグ捲回体10(のトウプリプレグ)の使用に当たっては、トウプリプレグ表層部12のトウプリプレグを巻き剥がして廃棄した後、製品部分となるトウプリプレグ本体部11のトウプリプレグを繰り出して利用すればよい。   In using the tow prepreg wound body 10 (of tow prepreg), the tow prepreg of the tow prepreg surface layer portion 12 is rolled off and discarded, and then the tow prepreg of the tow prepreg main body portion 11 to be a product portion is fed out and used. Just do it.

<トウプリプレグの適用について>
前記トウプリプレグ捲回体10の製品部分となるトウプリプレグ本体部11から繰り出されたトウプリプレグは、例えばライナ(マンドレルともいう)の回転速度やトウプリプレグの送り出し速度や張力等を調整しながら、FWにより製品形状を形作るライナ外周に繰り返し巻回される。なお、巻回の際には、例えば、フープ巻きによる巻回と低角度・高角度のヘリカル巻きによる巻回とが使い分けられ、こうした巻回の使い分けにより、前記トウプリプレグは、前記ライナの外表面全域を被覆する。その後、前記トウプリプレグをライナの周囲に巻き付けたものを、例えば加熱炉にて加熱して、前記トウプリプレグに含まれる樹脂(例えばエポキシ樹脂等)を硬化させることにより、外表面が繊維強化樹脂層で覆われた製品形状とされる。
<On the application of tow prepreg>
The tow prepreg fed from the tow prepreg main body portion 11 to be the product portion of the tow prepreg wound body 10 is, for example, an FW while adjusting the rotational speed of the liner (also referred to as a mandrel) and the delivery speed and tension of the tow prepreg. Are repeatedly wound around the outer periphery of the liner forming the product shape. At the time of winding, for example, winding by hoop winding and winding by low angle and high angle helical winding are used properly, and by properly using such winding, the tow prepreg has the outer surface of the liner. Cover the whole area. Then, the outer surface of the fiber reinforced resin layer is heated by heating the tow prepreg wound around the liner in, for example, a heating furnace to cure the resin (eg, epoxy resin etc.) contained in the tow prepreg. The product is covered with

なお、前記トウプリプレグ捲回体10から繰り出されたトウプリプレグを用いて製造される製品としては、例えば、燃料電池自動車や天然ガス自動車等に搭載されて、燃料ガスとしての水素ガスや天然ガス等を貯蔵する高圧ガスタンク、車両や航空機等で用いられるプロペラシャフトやドアフレーム等がある。   In addition, as a product manufactured using the tow prepreg drawn from the tow prepreg winding body 10, for example, it is mounted on a fuel cell vehicle, a natural gas vehicle, etc., and hydrogen gas as a fuel gas, natural gas, etc. High-pressure gas tanks for storing fuel, propeller shafts and door frames used in vehicles and aircraft etc.

このように、本実施形態では、トウプリプレグ本体部11を製造した後、トウプリプレグ本体部11の表層全体を覆うトウプリプレグ表層部12を製造することで、トウプリプレグ捲回体10を放置した場合でも、トウプリプレグ表層部12にしか吸湿されないため、使用の際には、トウプリプレグ表層部12を引き剥がすことで、吸湿等により劣化していないトウプリプレグ本体部11を利用できるので、吸湿等の環境劣化に起因する硬化不良、型崩れに起因するFW時の巻付け不良等を可及的に抑えることができる。   As described above, in the present embodiment, after the tow prepreg main body portion 11 is manufactured, the tow prepreg wound body 10 is left by manufacturing the tow prepreg surface layer portion 12 covering the entire surface layer of the tow prepreg main body portion 11. However, since only the tow prepreg surface layer 12 absorbs moisture, by peeling off the tow prepreg surface layer 12 at the time of use, it is possible to use the tow prepreg main body 11 which has not deteriorated due to moisture absorption etc. Curing defects caused by environmental deterioration and winding defects at the time of FW caused by the shape collapse can be suppressed as much as possible.

より詳しくは、ヘリカル巻により角度を変えて巻き付けたトウプリプレグ表層部12が外部からの水分を吸湿して(すなわち、トウプリプレグ表層部12が吸湿層として機能して)、製品部分となる内部のトウプリプレグ本体部11への水分浸透が阻止されるため、ライナ等へのFW時に、吸水していないトウプリプレグ(トウプリプレグ本体部11のトウプリプレグ)を使用することができる。   More specifically, the tow prepreg surface layer portion 12 wound by changing the angle by helical winding absorbs moisture from the outside (that is, the tow prepreg surface layer portion 12 functions as a moisture absorbing layer) and becomes the product portion. Since permeation of water into the tow prepreg main body 11 is prevented, it is possible to use a tow prepreg (tow prepreg of the tow prepreg main body 11) not absorbing water at the time of FW to a liner or the like.

また、トウプリプレグ(例えば、連続繊維状の炭素繊維束にエポキシ樹脂を含浸させた炭素繊維強化プラスチック(CFRP))は柔らかいため、角度を変えて巻いたトウプリプレグ表層部12が低張力でも製品部分となるトウプリプレグ本体部11(のトウプリプレグ)に密着して水分の侵入防止と肩崩れ変形防止を両立することができる。また、トウプリプレグ表層部12を低張力とすることで、製品部分となるトウプリプレグ本体部11(のトウプリプレグ)の配向が乱れることを防止することができる。   In addition, since the tow prepreg (for example, a carbon fiber reinforced plastic (CFRP) in which a continuous fiber carbon fiber bundle is impregnated with an epoxy resin) is soft, the product portion even if the tow prepreg surface layer 12 wound at a different angle has a low tension It can be in close contact with (the tow prepreg of) the tow prepreg main body 11 to be compatible with the prevention of water intrusion and the prevention of shoulder collapse deformation. Further, by setting the tow prepreg surface layer portion 12 to have a low tension, it is possible to prevent the disorder of the orientation of (the tow prepreg) of the tow prepreg main body portion 11 which is the product portion.

さらに、トウプリプレグ化で使用するボビンをそのまま使用できるため、生産性が良いという利点もある。   Furthermore, there is also an advantage that the productivity is good because the bobbin used in tow prepreg can be used as it is.

以上、本発明の実施の形態を図面を用いて詳述してきたが、具体的な構成はこの実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲における設計変更等があっても、それらは本発明に含まれるものである。   As mentioned above, although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and there are design changes and the like within the scope of the present invention. Also, they are included in the present invention.

9…ボビン、10…トウプリプレグ捲回体、11…トウプリプレグ本体部、11a…トウプリプレグ本体部の外周面、11b…トウプリプレグ本体部の上端面、11c…トウプリプレグ本体部の下端面、12…トウプリプレグ表層部 9: bobbin, 10: tow prepreg wound body, 11: tow prepreg main body, 11a: outer peripheral surface of tow prepreg main body, 11b: upper end surface of tow prepreg main body, 11c: lower end surface of tow prepreg main body, 12 ... Tow prepreg surface layer

Claims (1)

連続繊維状の繊維束に樹脂を含浸してなるトウプリプレグがボビンに巻き付けられたトウプリプレグ捲回体の製造方法であって、
前記トウプリプレグを前記ボビンに一定方向に巻き付けてトウプリプレグ本体部を形成する工程と、
前記プリプレグ本体部の表層全体に前記トウプリプレグをヘリカル巻きし、前記プリプレグ本体部の表層全体を覆うトウプリプレグ表層部を形成する工程と、を含むトウプリプレグ捲回体の製造方法。
A method for producing a tow prepreg wound body in which a tow prepreg obtained by impregnating a resin into a continuous fiber-like fiber bundle is wound around a bobbin,
Winding the tow prepreg in a fixed direction around the bobbin to form a tow prepreg main body;
And b. Helically winding the tow prepreg around the entire surface of the prepreg body to form a tow prepreg surface layer covering the entire surface of the prepreg body.
JP2017076657A 2017-04-07 2017-04-07 Manufacturing method of tow prepreg wound body Pending JP2018177898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017076657A JP2018177898A (en) 2017-04-07 2017-04-07 Manufacturing method of tow prepreg wound body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017076657A JP2018177898A (en) 2017-04-07 2017-04-07 Manufacturing method of tow prepreg wound body

Publications (1)

Publication Number Publication Date
JP2018177898A true JP2018177898A (en) 2018-11-15

Family

ID=64281212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017076657A Pending JP2018177898A (en) 2017-04-07 2017-04-07 Manufacturing method of tow prepreg wound body

Country Status (1)

Country Link
JP (1) JP2018177898A (en)

Similar Documents

Publication Publication Date Title
US10456996B2 (en) Tank manufacturing method and tank
EP1520683B1 (en) Pressure container manufacturing method
US20150292677A1 (en) Method of manufacturing a compressed gas cylinder
JP2016142349A (en) Pressure container
US20160339650A1 (en) Manufacturing method of tank and tank manufacturing apparatus
JP2008126615A (en) Method for manufacturing fiber-reinforced plastic member
WO2018096905A1 (en) Method for manufacturing pressure container
JP2008286297A (en) High-pressure tank manufacturing method
JP2008309219A (en) Tank and its manufacturing method
US11105465B2 (en) Pressure vessel
JP5257736B2 (en) Tank manufacturing method and tank manufacturing equipment
JP2010249147A (en) Frp tank and method for manufacturing the same
JP2005113963A (en) Pressure resistant container manufacturing method
EP3795340B1 (en) High pressure container and method of its manufacture
JP2005113971A (en) Liner for pressure resistant container
JP2018177898A (en) Manufacturing method of tow prepreg wound body
JP2021187094A (en) Manufacturing method of high pressure tank
JP4431351B2 (en) Pressure vessel manufacturing method
CN115279576B (en) Tank
JP6922393B2 (en) Pressure vessel
JP6726408B2 (en) High pressure tank manufacturing method and high pressure tank
JP2008238491A (en) Frp molded body, its manufacturing method, and gas tank
JP2008249021A (en) Pressure vessel and its manufacturing method
JPH0323887B2 (en)
JP2021014856A (en) High pressure tank