JP2003291115A - Surface sheet for reinforcing woody material and method for manufacturing the same - Google Patents
Surface sheet for reinforcing woody material and method for manufacturing the sameInfo
- Publication number
- JP2003291115A JP2003291115A JP2002095553A JP2002095553A JP2003291115A JP 2003291115 A JP2003291115 A JP 2003291115A JP 2002095553 A JP2002095553 A JP 2002095553A JP 2002095553 A JP2002095553 A JP 2002095553A JP 2003291115 A JP2003291115 A JP 2003291115A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing
- wood material
- surface sheet
- fiber
- wood
- 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.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、軽量、高剛性、長
期変形耐性を有する木質材料補強用表面シート、及びそ
の製造方法、並びに補強方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-weight, high-rigidity, long-term deformation-resistant surface sheet for reinforcing wooden materials, a method for manufacturing the same, and a method for reinforcing the same.
【０００２】[0002]
【従来の技術】木質材料は、従来から建築材料として多
用されているが、ドアや壁など大型薄板の状態で使用す
る場合、荷重、寒熱、吸湿、乾燥の繰り返しによって、
変形を起こし、製品機能が著しく低下することがある。
そこで、木質材料を補強すべく、薄手鋼板を貼り付ける
方法があった。しかしながら、鋼板を貼り付ける方法
は、加工性が悪い、製品が重くなる、錆の発生があるな
どの問題があった。そこで、これら加工性、軽量性に優
れ、錆の問題が生じない補強方法として、繊維強化複合
材料を積層一体化する方法がある。繊維強化複合材料を
木質材料に貼り付けるには、通常、成形前のプリプレグ
を木質材料と積層した状態で加熱することにより、プリ
プレグの硬化と同時に、木質材料と一体化することが行
われる。2. Description of the Related Art Wood materials have been widely used as building materials, but when they are used in the state of large thin plates such as doors and walls, they are subject to repeated load, cold heat, moisture absorption, and drying.
Deformation may occur and product functionality may be significantly reduced.
Therefore, there has been a method of attaching a thin steel plate to reinforce the wood material. However, the method of attaching the steel plate has problems such as poor workability, heavy product, and rust. Therefore, there is a method of laminating and integrating fiber-reinforced composite materials as a reinforcing method which is excellent in workability and lightness and does not cause a problem of rust. In order to attach the fiber-reinforced composite material to the wood material, generally, the prepreg before molding is heated in a state of being laminated with the wood material so that the prepreg is cured and integrated with the wood material at the same time.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、この加
熱硬化と同時に木質材料と一体化する方法では、木質材
料は断熱性が高いことから、プリプレグを十分に加熱す
るには長時間を要するため生産性が低いほか、木質材料
への貼付強度も十分とはいえず、剥離してしまう可能性
があった。However, in the method of integrating with the wood material at the same time as this heat curing, since the wood material has a high heat insulating property, it takes a long time to sufficiently heat the prepreg, so that the productivity is improved. In addition, the adhesive strength to wood materials was not sufficient and there was a possibility of peeling.
【０００４】本発明は、前記課題を解決するためになさ
れたもので、生産性を損なうことなく、繊維強化複合材
料を用いて木質材料を補強すると共に、木質材料への接
着強度が高い木質材料補強用表面シート及びその製造方
法、並びに補強方法を提供することを目的とする。The present invention has been made in order to solve the above-mentioned problems, and it is possible to reinforce a wood material with a fiber-reinforced composite material without impairing the productivity and to have a high adhesive strength to the wood material. An object of the present invention is to provide a reinforcing surface sheet, a method for manufacturing the same, and a reinforcing method.
【０００５】[0005]
【課題を解決するための手段】本発明の木質材料の補強
方法は、既に加熱硬化されて成形された繊維強化複合材
料を接着剤を用いて木質材料に貼り合わせて一体化する
ものである。ここで、一般に、プリプレグを硬化させて
繊維強化複合材料の板、又はシートを製造する技術とし
ては、プリプレグから離型紙を剥ぎ、ポリプロピレン、
フッ化ビニール等の離型フィルムでプリプレグを挟み、
それだけでは歪みや弛みが生じてしまうので、金属製プ
レートを介して挟み硬化させる方法や、離型剤を塗布し
た金属製プレートでプリプレグを挟み硬化させる方法が
ある。しかしながら、これに用いられる離型フィルム
は、使い捨てとなり経済的ではない。また、型材として
金属製プレートが必要となるため、生産コストの負担が
更に大きくなる。そのため、離型フィルム及び金属製プ
レートを使用せずに、離型紙を用いてプリプレグを硬化
させて、繊維強化複合材料製のシートを得る方法が検討
された。The method of reinforcing a wood-based material of the present invention is to integrate a fiber-reinforced composite material that has been already heat-cured and molded into a wood-based material by using an adhesive to integrate it. Here, generally, as a technique for curing a prepreg to produce a plate or sheet of a fiber-reinforced composite material, peeling release paper from the prepreg, polypropylene,
Sandwich the prepreg with a release film such as vinyl fluoride,
Since distortion and slack will occur by itself, there is a method of sandwiching and curing via a metal plate or a method of sandwiching and curing the prepreg between metal plates coated with a release agent. However, the release film used for this is disposable and not economical. Further, since a metal plate is required as a mold material, the burden of production cost is further increased. Therefore, a method of obtaining a sheet made of a fiber-reinforced composite material by using a release paper to cure the prepreg without using a release film and a metal plate has been studied.
【０００６】しかしながら、離型紙を使ってプリプレグ
を硬化すると、離型紙の塗工成分がプリプレグへ移行す
る可能性があり、プリプレグを硬化させた繊維強化複合
材料製のシートを接着剤を用いて木質材料に接着して
も、接着強度が十分ではなく、木質材料から補強材が剥
がれ落ちてしまう恐れがある。However, when the prepreg is cured by using the release paper, the coating components of the release paper may be transferred to the prepreg, and the sheet made of the fiber reinforced composite material obtained by curing the prepreg is used with an adhesive to make a wood-based material. Even if it adheres to the material, the adhesive strength is not sufficient, and the reinforcing material may peel off from the wood material.
【０００７】そこで、本発明の木質材料補強用表面シー
トは、木質材料に接着剤で接着することによって、該木
質材料を補強する繊維強化樹脂複合層を有する木質材料
補強用表面シートであって、繊維強化樹脂複合層の補強
繊維が一方向に引き揃えられており、木質材料への接着
面は、ＪＩＳ Ｋ５４００ ８．５２に準じた基盤目試
験における剥離面積が５０％以下であることを特徴とす
る。また、上記木質材料補強用表面シートは、繊維強化
樹脂複合層の補強繊維の引き揃え方向に対して、異なる
方向に配向した強化繊維層を有することが好ましい。ま
た、上記木質材料補強用表面シートは、強化繊維層が、
繊維織物、不織布、布帛又は紙からなり、その厚みが全
厚みの３〜４０％であることが好ましい。本発明の木質
材料補強用表面シートの製造方法は、少なくとも片面に
離型紙を配備してプリプレグを加熱、硬化することを特
徴とする。また、上記木質材料補強用表面シートの製造
方法は、複数枚のプリプレグを紙を介して積層した状態
で加熱、硬化することが好ましい。本発明の木質材料の
補強方法は、補強繊維が一方向に引き揃えられた繊維強
化樹脂複合層を有する木質材料補強用表面シートを接着
剤で木質材料に接着する木質材料の補強方法であって、
木質材料補強用表面シートの木質材料への接着面が、Ｊ
ＩＳ Ｋ５４００ ８．５２に準じた碁盤目試験におけ
る剥離面積が５０％以下であることを特徴とする。Therefore, the top sheet for reinforcing wood material of the present invention is a top sheet for reinforcing wood material having a fiber reinforced resin composite layer for reinforcing the wood material by adhering to the wood material with an adhesive, The reinforcing fibers of the fiber-reinforced resin composite layer are aligned in one direction, and the adhesive surface to the wood-based material has a peeling area of 50% or less in the base stitch test according to JIS K5400 8.52. To do. Further, it is preferable that the above-mentioned surface sheet for reinforcing a wood material has a reinforcing fiber layer oriented in a direction different from the alignment direction of the reinforcing fibers of the fiber-reinforced resin composite layer. Further, the above-mentioned wood material reinforcing surface sheet, the reinforcing fiber layer,
It is preferably made of fiber woven fabric, non-woven fabric, cloth or paper, and its thickness is preferably 3 to 40% of the total thickness. The method for producing a top sheet for reinforcing a wood material of the present invention is characterized in that a release paper is provided on at least one side and a prepreg is heated and cured. Further, in the method for manufacturing a surface sheet for reinforcing a wood material, it is preferable that a plurality of prepregs are heated and cured in a state of being laminated with paper interposed therebetween. The method for reinforcing a wood material according to the present invention is a method for reinforcing a wood material, wherein a wood material reinforcing surface sheet having a fiber-reinforced resin composite layer in which reinforcing fibers are aligned in one direction is adhered to the wood material with an adhesive. ,
Adhesive surface to the wood material is J
The peeled area in a cross cut test according to IS K5400 8.52 is 50% or less.
【０００８】[0008]
【発明の実施の形態】本発明の木質材料補強用表面シー
トは、その片面に接着剤を塗布し、木質材料に接着する
ことによって、木質材料を補強するためのシートであ
る。上記木質材料補強用表面シートは、少なくとも、補
強繊維に樹脂を含浸させたプリプレグから形成される繊
維強化樹脂複合層を具備し、その補強繊維が一方向に引
き揃えられている。BEST MODE FOR CARRYING OUT THE INVENTION The surface sheet for reinforcing a wood material of the present invention is a sheet for reinforcing a wood material by applying an adhesive on one surface thereof and adhering it to the wood material. The above-mentioned top sheet for reinforcing a wood material includes at least a fiber-reinforced resin composite layer formed of a prepreg in which reinforcing fibers are impregnated with a resin, and the reinforcing fibers are aligned in one direction.
【０００９】上記プリプレグの補強繊維としては、炭素
繊維、アラミド繊維、ガラス繊維等が挙げられる。これ
らの補強繊維は、長手方向の剛性を補強するために一方
向に引き揃えられている。また、上記プリプレグの樹脂
としては、エポキシ樹脂、フェノール樹脂等の熱硬化性
樹脂、及びＭＭＡ樹脂、ビニルエステル樹脂、ポリエス
テル樹脂等の熱可塑性樹脂が挙げられる。その中でも、
補強繊維の物性を適正に引き出す点、低コストで補強繊
維が一方向に引き揃えられた繊維強化樹脂複合層を形成
できるという点から、エポキシ樹脂が好ましく用いられ
る。上記プリプレグの繊維体積含有率（Ｖｆ）は、５０
％以上であることが望ましい。より好ましくは、５０〜
６０％である。繊維体積含有率（Ｖｆ）が５０％未満の
場合、最終的に得られる木質材料補強用表面シートの剛
性および強度の面で好ましくない。Examples of the reinforcing fiber of the prepreg include carbon fiber, aramid fiber, glass fiber and the like. These reinforcing fibers are aligned in one direction to reinforce the rigidity in the longitudinal direction. Examples of the resin of the prepreg include thermosetting resins such as epoxy resin and phenol resin, and thermoplastic resins such as MMA resin, vinyl ester resin and polyester resin. Among them,
An epoxy resin is preferably used from the viewpoint that the physical properties of the reinforcing fiber can be appropriately extracted and that the fiber-reinforced resin composite layer in which the reinforcing fibers are aligned in one direction can be formed at low cost. The fiber volume content (Vf) of the prepreg is 50.
% Or more is desirable. More preferably 50 to
60%. When the fiber volume content (Vf) is less than 50%, it is not preferable in terms of rigidity and strength of the finally obtained wood material reinforcing surface sheet.
【００１０】本発明の木質材料補強用表面シートは、そ
の木質材料への接着面が、ＪＩＳＫ５４００ ８．５２
に準じた基盤目試験において剥離面積が５０％以下であ
る。剥離面積が５０％を超える木質材料補強用表面シー
トは、木質材料との接着に十分な接着力を有していない
ため好ましくない。In the surface sheet for reinforcing a wood material of the present invention, the adhesive surface to the wood material is JIS K5400 8.52.
The peeled area is 50% or less in the basic eye test according to the above. A surface sheet for reinforcing a wood material having a peeled area of more than 50% is not preferable because it does not have sufficient adhesive force for adhesion to the wood material.
【００１１】以下、ＪＩＳ Ｋ５４００ ８．５２に準
じた基盤目試験による剥離面積の測定方法について詳し
く説明する。木質材料補強用表面シートに、ワイドスプ
レー（ラッカー塗料、ニッペホームプロダクツ社製）を
スプレーで噴霧し、厚さ０．０１ｍｍの塗装膜を形成す
る。その木質材料補強用表面シートに、定規を用いカッ
ターナイフ（ＮＴカッター社製）で、１ｍｍ間隔の平行
線を補強繊維の引き揃え方向と、それに直交する方向に
それぞれ１１本引き、塗装膜に碁盤目状の切り傷を付け
る。その碁盤目状の切り傷に、セロハンテープ（「Ｎ
ｏ．２３２」３Ｍ社製）（登録商標）を貼り付け、セロ
ハンテープを密着させるため、その上を消しゴムでこす
り、６０秒待ったのち、瞬時にセロハンテープを引き剥
がす。セロハンテープを引き剥がした後の碁盤目状の切
り傷を目視観察し、ます目の塗料の残りをスキャナー等
の画像処理装置を用い、白色か黒色かによって２値化し
て、塗装の剥離した黒色部分の面積を測定する。The method of measuring the peeled area by the base stitch test according to JIS K5400 8.52 will be described in detail below. A wide spray (lacquer paint, manufactured by Nippe Home Products) is sprayed on the surface sheet for reinforcing the wood material to form a coating film having a thickness of 0.01 mm. On the surface sheet for reinforcing the wood material, use a ruler and a cutter knife (manufactured by NT Cutter Co., Ltd.) to draw 11 parallel lines at intervals of 1 mm in the direction in which the reinforcing fibers are aligned and in the direction orthogonal to the parallel line, and the coating film is used as a board. Make eye-shaped cuts. The cell-shaped tape ("N
o. 232 ”(manufactured by 3M Co.) (registered trademark) is adhered, and the cellophane tape is rubbed with an eraser to adhere the cellophane tape, and after waiting for 60 seconds, the cellophane tape is instantly peeled off. After visually observing the cross cuts after peeling off the cellophane tape, the residual paint on the grid is binarized by using an image processing device such as a scanner depending on whether it is white or black. Measure the area of.
【００１２】本発明の木質材料補強用表面シートは、
０．１ｍｍ〜５ｍｍの厚みであることが好ましい。木質
材料補強用表面シートの厚みが０．１ｍｍ未満の場合、
経年反り防止硬化が得られず、５ｍｍを超えると、重量
増加、切り出し加工性が悪くなるといった不具合が生じ
る。The surface sheet for reinforcing wood material of the present invention is
The thickness is preferably 0.1 mm to 5 mm. When the thickness of the surface sheet for reinforcing wood material is less than 0.1 mm,
If aging-resistant warping cannot be obtained and the thickness exceeds 5 mm, problems such as an increase in weight and poor cutting workability occur.
【００１３】本発明の木質材料補強用表面シートは、繊
維強化樹脂複合層の補強繊維の引き揃え方向に対して、
異なる方向に配向した強化繊維層を具備することが好ま
しい。上記強化繊維層は、ガラス繊維、炭素繊維等の補
強繊維を一方向に引き揃えた繊維強化複合材料から形成
されてもよいし、ガラス繊維、炭素繊維、ポリエステル
繊維、ポリプロピレン繊維等の補強繊維を用いて製織し
た織布、短繊維をランダムに配向したマット材料、不織
布、布帛又は紙等により形成されてもよい。これらの中
でもガラス繊維織物、又は紙が好適に用いられ、特に紙
が好ましい。強化繊維層を紙とする場合、プリプレグを
加熱、硬化し成形されたシートから離型紙を剥がさず
に、そのまま強化繊維層として利用できるので、生産性
及び生産コストの面で有利である。ただし、上記よう
に、離型紙を強化繊維層とするときは、離型紙塗工成分
をあまり含有していない離型紙を用いる。このような強
化繊維層を有することで、幅方向の強度も高めることが
できる。The surface sheet for reinforcing wood material according to the present invention has a direction in which the reinforcing fibers of the fiber-reinforced resin composite layer are aligned with each other.
It is preferred to have reinforcing fiber layers oriented in different directions. The reinforcing fiber layer may be formed from a fiber-reinforced composite material in which reinforcing fibers such as glass fibers and carbon fibers are aligned in one direction, and glass fibers, carbon fibers, polyester fibers, and reinforcing fibers such as polypropylene fibers are used. It may be formed of a woven fabric woven using the above, a mat material in which short fibers are randomly oriented, a non-woven fabric, a cloth or paper. Among these, glass fiber woven fabric or paper is preferably used, and paper is particularly preferable. When the reinforcing fiber layer is made of paper, it can be directly used as the reinforcing fiber layer without peeling the release paper from the sheet formed by heating and curing the prepreg, which is advantageous in terms of productivity and production cost. However, as described above, when the release paper is used as the reinforcing fiber layer, the release paper containing less release paper coating component is used. By having such a reinforcing fiber layer, the strength in the width direction can also be increased.
【００１４】上記強化繊維層の層厚比率が３〜４０％で
あることが好ましい。より好ましくは５〜４０％であ
る。強化繊維層の層厚比率が３％未満の場合、補強繊維
の幅方向の割れ防止に不十分であり、４０％を超える
と、シートの剛性が落ちる、長手方向繊維反り防止効果
が少なくなるといった不具合が生じるためである。この
ように、本発明の木質材料補強用表面シートは、木質材
料との接着強度に優れ、長期に渡り安定した補強力を有
するものである。The layer thickness ratio of the reinforcing fiber layer is preferably 3 to 40%. It is more preferably 5 to 40%. When the layer thickness ratio of the reinforcing fiber layer is less than 3%, it is insufficient to prevent the reinforcing fibers from cracking in the width direction, and when it exceeds 40%, the rigidity of the sheet is reduced and the effect of preventing longitudinal fiber warp is reduced. This is because a problem will occur. As described above, the surface sheet for reinforcing a wood material of the present invention has excellent adhesive strength with a wood material and has a stable reinforcing force for a long period of time.
【００１５】本発明の木質材料補強用表面シートは、例
えば、次のようにして製造できる。まず、プリプレグの
製造に使用される樹脂をロールコーター等を用いて、離
型紙上に塗布し、樹脂フィルムを作製する。次に、補強
繊維を一方向に引き揃え、作製した樹脂フィルムを重
ね、加熱、加圧して樹脂を含浸させてプリプレグを製造
する。また、強化繊維層を有する木質材料補強用表面シ
ートを製造する場合は、樹脂フィルムと一体化した紙
（離型紙）を剥がさないで、それをそのまま強化繊維層
とすればよいし、ガラス繊維織物等を強化繊維層とする
場合は、プリプレグの巻き取り時に、プリプレグの両面
ないし片面に、ガラス繊維織物等を貼り合わせればよ
い。The surface sheet for reinforcing wood material of the present invention can be manufactured, for example, as follows. First, a resin used for producing a prepreg is applied onto release paper using a roll coater or the like to produce a resin film. Next, the reinforcing fibers are aligned in one direction, the produced resin films are stacked, and heated and pressed to impregnate the resin to produce a prepreg. Further, when manufacturing a surface sheet for reinforcing a wood material having a reinforcing fiber layer, the paper integrated with the resin film (release paper) may be used as it is as the reinforcing fiber layer without being peeled off. When the prepreg is wound up, a glass fiber woven fabric or the like may be attached to both surfaces or one surface of the prepreg when the prepreg is wound.
【００１６】上記のようにして製造されたプリプレグ、
又はプリプレグと強化繊維層からなる積層体を所定の長
さに切断し、加熱、硬化して、繊維強化樹脂複合層を具
備した木質材料補強用表面シートを得ることができる。
この際、プリプレグ、又はプリプレグと強化繊維層から
なる積層体間に離型紙を配備して加熱、硬化することに
より、多数の木質材料補強用表面シートを同時に製造す
ることができる。ただし、この際に用いられる離型紙
は、強化繊維層としてではなく、成形品である木質材料
補強用表面シートどうし、又は木質材料補強用表面シー
トと装置との粘着防止のために使われ、成形後は離型紙
を剥がすので、木質材料への接着力を有しつつ剥離可能
とした離型紙を選択する必要がある。A prepreg manufactured as described above,
Alternatively, a laminate comprising a prepreg and a reinforcing fiber layer is cut into a predetermined length, heated and cured to obtain a wood material-reinforced surface sheet having a fiber-reinforced resin composite layer.
At this time, a release paper is placed between the prepreg or a laminate composed of the prepreg and the reinforcing fiber layer and heated and cured to simultaneously produce a large number of surface materials for reinforcing a wood material. However, the release paper used at this time is not used as a reinforcing fiber layer, but is used to prevent the adhesion between the surface sheets for reinforcing the wood material or the wood material reinforcing surface sheet, which is a molded product, and the molding. After that, since the release paper is peeled off, it is necessary to select a release paper that has adhesiveness to the wood material and can be peeled off.
【００１７】図１は、プリプレグ１０ａと強化繊維層か
らなる積層体１０に離型紙１１を配備して、加熱、硬化
することにより多数同時に製造する方法を示す。例え
ば、所定の長さに切断されたプリプレグ１０ａとガラス
繊維織物１０ｂから形成された積層体１０をシールリブ
３１の形成された鋼板製台３０上で、離型紙１１を介し
て積層した後、それを隔壁材２０で覆う。隔壁材２０の
周囲は、枠状の固定フレーム３２でシールして密閉す
る。そして、鋼板製台３０に備えられた排気口３３から
真空吸引して、隔壁材２０内を減圧した後、外部から加
圧、加熱して成形する。成形する方法としては、プレス
あるいはオーブン、オートクレーブ成形法などが挙げら
れる。このようにプリプレグ１０ａとガラス繊維織物１
０ｂとを一体硬化した後、各木質材料補強用表面シート
間に配備された離型紙１１を剥ぎ取って、一回の成形で
複数枚の木質材料補強用表面シートを得ることができ
る。FIG. 1 shows a method in which a release paper 11 is placed on a laminate 10 composed of a prepreg 10a and a reinforcing fiber layer, and a large number of them are simultaneously produced by heating and curing. For example, after laminating the laminated body 10 formed of the prepreg 10a and the glass fiber woven fabric 10b cut into a predetermined length on the steel plate base 30 on which the seal rib 31 is formed via the release paper 11, It is covered with a partition material 20. The periphery of the partition wall member 20 is sealed and sealed by a frame-shaped fixed frame 32. Then, the inside of the partition wall member 20 is decompressed by vacuum suction from the exhaust port 33 provided in the steel plate base 30, and then pressure and heat are applied from the outside to mold. Examples of the molding method include a press, an oven and an autoclave molding method. Thus, the prepreg 10a and the glass fiber woven fabric 1
0b and integral curing, the release paper 11 provided between the respective wood material reinforcing surface sheets is peeled off, and a plurality of wood material reinforcing surface sheets can be obtained by one molding.
【００１８】また、上記のように、離型紙１１を木質材
料補強用表面シートから剥ぎ取ってもよいが、離型紙自
体にプリプレグの樹脂を染み込ませて木質材料補強用表
面シートと一体化させることもできる。ただし、１回の
成形で木質材料補強用表面シートを多段に積み上げて成
形硬化させるとき、木質材料補強用表面シート同士が互
いに貼りつかないように離型紙を使い分ける必要があ
る。本発明の製造方法によれば、従来、使用されていた
使い捨ての離型フィルムや、金属製プレートが不要なた
め、生産コストを抑えることが可能となる。Further, as described above, the release paper 11 may be peeled off from the wood material reinforcing surface sheet, but the release paper itself may be impregnated with the resin of the prepreg to be integrated with the wood material reinforcing surface sheet. You can also However, when stacking the wood material reinforcing surface sheets in multiple stages in one molding and curing and molding, it is necessary to use release paper properly so that the wood material reinforcing surface sheets do not stick to each other. According to the manufacturing method of the present invention, it is possible to suppress the production cost because the conventionally used disposable release film and metal plate are not required.
【００１９】本発明の木質材料の補強方法は、上記のよ
うにして製造された、ＪＩＳ Ｋ５４００ ８．５２に
準じた碁盤目試験における剥離面積が５０％以下の木質
材料補強用表面シートの片面に接着剤を塗布し、それを
木質材料に圧着、接着して木質材料に固定するものであ
る。使用される接着剤としては、ポリエステル樹脂、ポ
リウレタン樹脂、ビニルエステル樹脂、エポキシ樹脂系
接着剤等で、フィルム状、ゲル状、シート状の形態が挙
げられる。このような補強方法によれば、木質材料への
接着力に優れているため、剥がれ落ちる心配がない。ま
た、接着剤を用いて木質材料に固定するため、従来のよ
うな木質材料と補強材とを一体硬化する時間を省くこと
ができ、生産性が向上する。また、上記補強方法により
補強された木質材料は、軽量で高剛性を有し、かつ経時
変形を起こしにくいので、ドアや壁などの建築材料とし
て好適である。The method for reinforcing a wood material according to the present invention is applied to one side of a surface material for reinforcing wood material, which has a peeling area of 50% or less in a cross-cut test according to JIS K5400 8.52, manufactured as described above. An adhesive is applied, and the adhesive is fixed to the wood material by pressure bonding and adhesion to the wood material. Examples of the adhesive used include polyester resins, polyurethane resins, vinyl ester resins, and epoxy resin adhesives, and include film-like, gel-like, and sheet-like forms. According to such a reinforcing method, since it has excellent adhesion to the wood material, there is no fear of peeling off. In addition, since it is fixed to the wood material using an adhesive, it is possible to save the time required for integrally hardening the wood material and the reinforcing material as in the conventional case, and the productivity is improved. In addition, the wooden material reinforced by the above-described reinforcing method is lightweight, has high rigidity, and is resistant to deformation over time, and is therefore suitable as a building material for doors, walls, and the like.
【００２０】[0020]
【実施例】（プリプレグとガラス繊維織物からなる積層
体の作製）まず、エポキシ樹脂組成物（「＃３５０」三
菱レイヨン（株）製）をロールコーターを用いて離型紙
上に塗布し、目付け８０ｇ／ｍ2の樹脂フィルムを作製
した。次に、ＰＡＮ系炭素繊維（「ＴＲ３０Ｓ−１２
Ｌ」三菱レイヨン（株）製、引張弾性率が２３５ＧＰ
ａ）を目付け１５０ｇ／ｍ2となるように一方向に引き
揃え、これに作製した樹脂フィルムを重ね、加熱、加圧
して樹脂を含浸させてプリプレグを作製した。得られた
プリプレグは、樹脂含有率が３５％（繊維体積含有率約
５５％）であった。このプリプレグの巻き取り時に、プ
リプレグの両側表面上へ目付け３０ｇ／ｍ2のガラス繊
維織り布を貼り合わせて積層体とした。Example (Preparation of Laminated Body Comprising Prepreg and Glass Fiber Fabric) First, an epoxy resin composition (“# 350” manufactured by Mitsubishi Rayon Co., Ltd.) was applied onto release paper using a roll coater, and a basis weight of 80 g was applied. A resin film of / m 2 was prepared. Next, PAN-based carbon fiber (“TR30S-12
L ”manufactured by Mitsubishi Rayon Co., Ltd., tensile elastic modulus is 235 GP
Prepreg was prepared by aligning a) in one direction so as to have a basis weight of 150 g / m 2 , laminating the prepared resin film thereon, and heating and pressing to impregnate the resin. The obtained prepreg had a resin content of 35% (fiber volume content of about 55%). At the time of winding the prepreg, a glass fiber woven fabric having a basis weight of 30 g / m 2 was laminated on both side surfaces of the prepreg to form a laminate.
【００２１】（木質材料補強用表面シートの製造）上記
積層体を２５００ｍｍの長さに３０枚切断し、図１に示
すように、シールリブ３１の形成された３０００ｍｍ×
１２００ｍｍ×１０ｍｍの鋼板製台３０上で、離型紙
（「ＣＦＰゲンシ」、リンテック社製）１１を介して積
層した。その最上部にナイロンタフタ（織布）２１を被
せ、隔壁材（「ＲＶＢＳシリコンシート」、ボンドライ
ン社製）２０で覆った。隔壁材２０の周囲は枠状の固定
フレーム３２でシールして密閉した。そして、排気口３
３から隔壁材２０内を真空吸引して、積層体１０に圧力
を負荷した。そして、これを硬化炉内に搬入し、１１０
℃の雰囲気中で３時間保持し、プリプレグ１０ａをガラ
ス繊維織物１０ｂと共に一体硬化した。その後、離型紙
１１を剥ぎ取って外周をカッターナイフで所定寸法に切
り出し、木質材料補強用表面シートを製造した。(Manufacture of Surface Sheet for Reinforcing Wood Material) 30 sheets of the above laminated body were cut into a length of 2500 mm, and 3000 mm × with a seal rib 31 formed as shown in FIG.
It laminated on the stand 30 made from a steel plate of 1200 mm x 10 mm via the release paper ("CFP Genshi", Lintec Co., Ltd.) 11. Nylon taffeta (woven cloth) 21 was covered on the uppermost portion, and covered with a partition wall material (“RVBS silicon sheet”, manufactured by Bondline) 20. The periphery of the partition wall member 20 was sealed and sealed by a frame-shaped fixed frame 32. And the exhaust port 3
The inside of the partition member 20 was vacuum-sucked from 3, and pressure was applied to the laminated body 10. Then, this is carried into the curing furnace, and 110
The prepreg 10a was integrally cured together with the glass fiber woven fabric 10b by holding it in an atmosphere of ° C for 3 hours. After that, the release paper 11 was peeled off and the outer periphery was cut into a predetermined size with a cutter knife to manufacture a surface sheet for reinforcing the wood material.
【００２２】得られた木質材料補強用表面シートは、約
０．１５ミリメートルの厚みであり、この木質材料補強
用表面シートの接着性を評価するため、表面にワイドス
プレー（ラッカー塗料、ニッペホームプロダクツ社製）
をスプレーで噴霧し、厚さ０．０１ｍｍの塗装膜を形成
した。そして、この塗装膜について、上記したＪＩＳ
Ｋ５４００ ８．５２の碁盤目試験法に準じてその剥離
面積を測定した。その結果、碁盤目状の切り傷を観察す
ると、ます目の塗料の残りがおよそ５５％であることを
確認した。この結果より、実施例で得た木質材料補強用
表面シートは、木質材料への接着力に優れており、長期
にわたって安定した補強力を有するものであることが判
明した。The obtained wood material reinforcing surface sheet had a thickness of about 0.15 mm, and in order to evaluate the adhesiveness of the wood material reinforcing surface sheet, a wide spray (lacquer paint, Nippe Home Products) was applied to the surface. (Made by the company)
Was sprayed to form a coating film having a thickness of 0.01 mm. And, regarding this coating film, the above-mentioned JIS
The peeled area was measured according to the cross-cut test method of K5400 8.52. As a result, when the cross-shaped cuts were observed, it was confirmed that the residual paint in the open cells was about 55%. From these results, it was revealed that the surface sheet for reinforcing a wood material obtained in the example has an excellent adhesive force to the wood material and a stable reinforcing power for a long period of time.
【００２３】また、実施例で得られた木質材料補強用表
面シートの片面に接着剤を塗布し、それを木質材料に圧
着、接着して木質板上に固定した。木質材料補強用表面
シートで補強された木質板は、従来の鋼板補強された木
質板と比較して、大幅な重量増を伴うことなく、高剛性
で経時変化しにくいものであった。Further, an adhesive was applied to one surface of the wooden material reinforcing surface sheet obtained in the example, and the adhesive was pressed and adhered to the wooden material to be fixed on the wooden board. A wood board reinforced with a surface sheet for reinforcing a wood material has a high rigidity and is less likely to change with time as compared with a conventional wood board reinforced with a steel plate.
【００２４】[0024]
【発明の効果】本発明の木質材料補強用表面シートによ
れば、木質材料に対し高い接着強度を有するため剥がれ
落ちる心配がなく、木質材料を長期にわたり安定して補
強することができる。本発明の木質材料補強用表面シー
トの製造方法によれば、離型フィルム及び金属製プレー
トを用いることなく製造することが可能なため、生産コ
ストを低減することができる。また、予め木質材料補強
用表面シートを製造した後、接着剤を用いてそれを木質
材料に固定するので、生産性が良好である。EFFECT OF THE INVENTION According to the surface sheet for reinforcing a wood material of the present invention, since it has a high adhesive strength to the wood material, there is no fear of peeling off and the wood material can be reinforced stably for a long period of time. According to the method for manufacturing a top sheet for reinforcing a wood-based material of the present invention, it is possible to manufacture without using a release film and a metal plate, so that the production cost can be reduced. Moreover, since the surface sheet for reinforcing the wood material is manufactured in advance, it is fixed to the wood material by using an adhesive, so that the productivity is good.
【図１】 本発明の木質材料補強用表面シートの成形方
法を説明する断面図である。FIG. 1 is a cross-sectional view illustrating a method for forming a surface sheet for reinforcing a wood material according to the present invention.
１０ 積層体 １１ 離型紙 ２０ 隔壁材 ２１ ナイロンタフタ ３０ 鋼板製台 ３１ シールリブ ３２ 固定フレーム ３３ 排気口 10 stacks 11 Release paper 20 partition material 21 nylon taffeta 30 Steel plate base 31 seal rib 32 fixed frame 33 exhaust port
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ３２Ｂ 21/08 １０１ Ｂ３２Ｂ 21/08 １０１ Ｅ０４Ｃ 5/07 Ｅ０４Ｃ 5/07 // Ｂ２９Ｋ 105:06 Ｂ２９Ｋ 105:06 (72)発明者 山口 豊 愛知県豊橋市牛川通四丁目１番地の２ 三 菱レイヨン株式会社豊橋事業所内 Ｆターム(参考） 2B002 AA01 AA16 BA01 2B250 AA01 AA11 BA03 BA04 CA11 FA28 2E164 EA03 4F100 AK01B AK53 AK53B AP00A BA02 BA07 DG01B DG04 DG10B DG11B DG12B DG15B DH00B DH01B EC18 EJ08 EJ42 GB07 JK01 JL00 JL03 YY00B 4F204 AA01 AA36 AA39 AD06 AD08 AD16 AD20 AG01 AG03 AH46 AM28 FA01 FB01 FB11 FF01 FF05 FG02 FN11 FN12 FN17 FQ37 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) B32B 21/08 101 B32B 21/08 101 E04C 5/07 E04C 5/07 // B29K 105: 06 B29K 105: 06 (72) Inventor Toyohashi 2 2-1, Ushikawa-dori, Toyohashi-shi, Aichi Sanryu Rayon Co., Ltd. F-term at Toyohashi Works (reference) 2B002 AA01 AA16 BA01 2B250 AA01 AA11 BA03 BA04 CA11 FA28 2E164 EA03 4F100 AK01B AK53 AK53B AP00A BA02 BA07 DG01B DG04 DG10B DG11B DG12B DG15B DH00B DH01B EC18 EJ08 EJ42 GB07 JK01 JL00 JL03 YY00B 4F204 AA01 AA36 AA39 AD06 AD08 AD16 AD20 AG01 AG03 AH46 AM28 FA01 FB01 FB11 FF01 FF05 FG02 FN11 FN12 FN17 FQ37
Claims (6)
て、該木質材料を補強する繊維強化樹脂複合層を有する
木質材料補強用表面シートであって、 繊維強化樹脂複合層の補強繊維が一方向に引き揃えられ
ており、木質材料への接着面は、ＪＩＳ Ｋ５４００
８．５２に準じた基盤目試験における剥離面積が５０％
以下であることを特徴とする木質材料補強用表面シー
ト。1. A surface sheet for reinforcing a wood material, comprising a fiber-reinforced resin composite layer for reinforcing the wood material by adhering the wood material with an adhesive, wherein the reinforcing fibers of the fiber-reinforced resin composite layer are unidirectional. The adhesive surface to wood materials is JIS K5400.
50% of the peeling area in the base stitch test according to 8.52
A surface sheet for reinforcing a wood-based material, characterized in that:
き揃え方向に対して、異なる方向に配向した強化繊維層
を有することを特徴とする請求項1記載の木質材料補強
用表面シート。2. The surface sheet for reinforcing a wood material according to claim 1, further comprising a reinforcing fiber layer oriented in a different direction with respect to a direction in which the reinforcing fibers of the fiber-reinforced resin composite layer are aligned.
布帛又は紙からなり、その厚みが全厚みの３〜４０％で
あることを特徴とする請求項２記載の木質材料補強用表
面シート。3. The reinforcing fiber layer is a fiber woven fabric, a non-woven fabric,
The surface sheet for reinforcing a wood material according to claim 2, which is made of cloth or paper and has a thickness of 3 to 40% of the total thickness.
質材料補強用表面シートの製造方法であって、 少なくとも片面に離型紙を配備してプリプレグを加熱、
硬化することを特徴とする木質材料補強用表面シートの
製造方法。4. A method of manufacturing a surface sheet for reinforcing a wood material according to claim 1, wherein a release paper is provided on at least one surface to heat the prepreg.
A method for producing a surface sheet for reinforcing a wood material, which is characterized by hardening.
た状態で、加熱、硬化することを特徴とする請求項４記
載の木質材料補強用表面シートの製造方法。5. The method for producing a surface sheet for reinforcing a wood material according to claim 4, wherein a plurality of prepregs are laminated with paper interposed therebetween, and the prepreg is heated and cured.
強化樹脂複合層を有する木質材料補強用表面シートを接
着剤で木質材料に接着する木質材料の補強方法であっ
て、 木質材料補強用表面シートの木質材料への接着面が、Ｊ
ＩＳ Ｋ５４００ ８．５２に準じた碁盤目試験におけ
る剥離面積が５０％以下であることを特徴とする木質材
料の補強方法。6. A method for reinforcing a wood material, comprising: adhering a surface sheet for reinforcing wood material, which has a fiber-reinforced resin composite layer in which reinforcing fibers are aligned in one direction, to the wood material with an adhesive. The adhesive surface of the surface sheet to the wood material is J
A peeling area in a cross-cut test according to IS K5400 8.52 is 50% or less, a reinforcing method for a wood-based material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002095553A JP2003291115A (en) | 2002-03-29 | 2002-03-29 | Surface sheet for reinforcing woody material and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002095553A JP2003291115A (en) | 2002-03-29 | 2002-03-29 | Surface sheet for reinforcing woody material and method for manufacturing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003291115A true JP2003291115A (en) | 2003-10-14 |
Family
ID=29238985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002095553A Withdrawn JP2003291115A (en) | 2002-03-29 | 2002-03-29 | Surface sheet for reinforcing woody material and method for manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003291115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6108506B1 (en) * | 2016-04-04 | 2017-04-05 | 創造技術株式会社 | Warpage prevention member and method of manufacturing warpage prevention member |
-
2002
- 2002-03-29 JP JP2002095553A patent/JP2003291115A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6108506B1 (en) * | 2016-04-04 | 2017-04-05 | 創造技術株式会社 | Warpage prevention member and method of manufacturing warpage prevention member |
| WO2017175637A1 (en) * | 2016-04-04 | 2017-10-12 | 創造技術株式会社 | Warpage preventing member and method for producing the same |
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