JPH03222737A - Joined body and manufacture thereof - Google Patents

Joined body and manufacture thereof

Info

Publication number
JPH03222737A
JPH03222737A JP1949890A JP1949890A JPH03222737A JP H03222737 A JPH03222737 A JP H03222737A JP 1949890 A JP1949890 A JP 1949890A JP 1949890 A JP1949890 A JP 1949890A JP H03222737 A JPH03222737 A JP H03222737A
Authority
JP
Japan
Prior art keywords
composite
reinforcing material
porous
holes
edge
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.)
Granted
Application number
JP1949890A
Other languages
Japanese (ja)
Other versions
JP2899035B2 (en
Inventor
Junpei Morita
順平 森田
Takashi Tagou
田郷 隆
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.)
Nitto Denko Corp
Original Assignee
Nitto Denko 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 Nitto Denko Corp filed Critical Nitto Denko Corp
Priority to JP1949890A priority Critical patent/JP2899035B2/en
Publication of JPH03222737A publication Critical patent/JPH03222737A/en
Application granted granted Critical
Publication of JP2899035B2 publication Critical patent/JP2899035B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To prevent development of interlaminar destruction of polytetrafluoroethylene(PTFE) porous body from occurring by a method wherein the edge of reinforcing material is overlapped to the edge of composite body, which is prepared by providing reinforcing material on the surface of PTFE porous body so as to be joined together and adherent substance is filled in through holes. CONSTITUTION:A plurality of through holes 3 are provided at one longitudinal end of porous body 1. Reinforcing materials 4 and 5, which are respectively provided on one side of porous bodies 1 and 2 are bonded locally (or in dots, in stripes, in reticule or the like) to the porous bodies 1 and 2 in order not to impede the air permeability of the porous bodies 1 and 2. Composite bodies are joined through heat fusion under the condition that their edges are overlapped to each other. Since the reinforcing material 5 is made of heat fusible material, reinforcing material forming material melts and flows at the heat fusion of the composite materials into the through holes 3, resulting in functioning the filled matter as adherent substance 6 so as to make the joining of the composite bodies stronger.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はポリテトラフルオロエチレン(以下。[Detailed description of the invention] (Industrial application field) The present invention relates to polytetrafluoroethylene (hereinafter referred to as polytetrafluoroethylene).

PTFEと称す)多孔質体とその表面に設けられた補強
材から成る複合体相互をその端縁部において接着せしめ
、長尺化した接合体および該接合体の製造法に関する。
The present invention relates to an elongated joined body in which a composite consisting of a porous material (referred to as PTFE) and a reinforcing material provided on its surface is adhered to each other at their edges, and a method for manufacturing the joined body.

(従来の技術) PTFE多孔質多孔上体えば防水性と通気性を兼備して
いるので、防水通気性ウエア−ヤ長尺のチューブ状に加
工して加湿装置の主材料等として用いられている。
(Prior art) PTFE porous upper body is both waterproof and breathable, so it is processed into a long tube shape and used as the main material of humidifiers. .

かような分野にPTFE多孔質多孔上体る場合には、そ
の機械的強度を保証するため、該多孔質体の表面に通気
性を有する補強材を設けることがある。
When a porous PTFE upper body is used in such a field, a reinforcing material having air permeability may be provided on the surface of the porous body to ensure its mechanical strength.

そして、PTFE多孔質多孔上体のような用途に用いる
場合、長尺化が必要なことがある。長尺化は0例えば第
6図に示すように、 PTFE多孔質体lおよび20片
面に補強材4および5を各々設けた複合体を用意し、複
合体相互をその端縁部において重ね合わせ、この端縁部
を加熱加圧して、補強材1fr浴融し1両複合体を熱融
着せしめることにより行なっている。
When used for purposes such as a porous PTFE upper body, it may be necessary to lengthen the length. For example, as shown in FIG. 6, a composite is prepared in which reinforcing materials 4 and 5 are provided on one side of PTFE porous bodies 1 and 20, respectively, and the composites are overlapped at their edges, This is done by heating and pressurizing this edge, melting the reinforcing material in a 1fr bath, and heat-sealing the two-piece composite.

(発明が解決しようとする課題) ところで、上記長尺品を実用に供した際には接合部に種
々の方向から応力が作用するものであり。
(Problems to be Solved by the Invention) By the way, when the above elongated product is put into practical use, stress acts on the joint from various directions.

例えば第6図中に矢印Aで示す方向に応力が働くことも
ある。
For example, stress may act in the direction indicated by arrow A in FIG.

上記矢印方向の応力は剥離力として作用し、PTFE多
孔質多孔上体層間強度が弱いことに起因し1両複合体の
接合面での剥離を生ずる以前に。
The stress in the direction of the arrow above acts as a peeling force, and before peeling occurs at the joint surface of the two composites due to the weak interlayer strength of the PTFE porous body.

第7図に示すよう&?:J1側のPTFE多孔質多孔質
層1破壊さnてしまうことがあった。
As shown in Figure 7 &? : The PTFE porous layer 1 on the J1 side was sometimes destroyed.

PTFE多孔質多孔上体強度を同上させるため。To increase the strength of the PTFE porous upper body.

両顎合体の接合時の温度をPTFEの融点以上に上昇せ
しめることも考えらnるが、補強材がプラスチックであ
るような場合にに、高温のために補強材の劣化乃至分解
を招くので、この方法を採用するのは実際上困難である
It is conceivable to raise the temperature at the time of joining the two jaws together above the melting point of PTFE, but if the reinforcing material is plastic, the high temperature will cause deterioration or decomposition of the reinforcing material. It is difficult in practice to adopt this method.

従って1本発明にPTFE多孔質多孔上体材から収る複
合体相互の接合体であって、 PTFE多孔質多孔上体
破壊を生じ難い接合体およびそのような好ましい接合体
の有利な製造法を提供することを目的とする。
Therefore, the present invention provides a bonded body of composites made of porous PTFE porous body material, which is unlikely to cause destruction of the PTFE porous body, and an advantageous method for producing such a bonded body. The purpose is to provide.

(課題を解決する友めの手段) 本発明に係る接合体は端縁部に貫通孔を有するPTFE
多孔質多孔上体表面に設けらn*禰強材から戎る複合体
の前記端縁部土に、 PTFE多孔質多孔上体に補強材
が設けられた複合体における補強材の端縁部が重ね合わ
されて接合されており、且つ前記貫通孔には接着性物質
が充てんされ°ていることを特徴とするものである。
(Friendly Means for Solving the Problem) The joined body according to the present invention is made of PTFE having through holes in the edge portion.
The edge of the reinforcing material in the composite in which the reinforcing material is provided on the PTFE porous upper body is attached to the edge soil of the composite which is cut out from the n* reinforcement material provided on the surface of the porous upper body. They are overlapped and bonded, and the through hole is filled with an adhesive substance.

本発明に用いられるPTFE多孔質多孔上体えば特公昭
58−25332号公報、特公昭42−13560号公
報等に記載の方法によって得ることができる。
The porous PTFE body used in the present invention can be obtained by the method described in Japanese Patent Publication No. 58-25332, Japanese Patent Publication No. 42-13560, and the like.

ま友、この多孔質体は種々の商品名で市販されているの
で、これらを入手して用いることもできるうそして、こ
のPTFE多孔質多孔上体には補強材が設けられる。補
強材としては、不織布、織布等のそれ自身が通気性であ
るものが好ましく用いらる。この他、テトラフルオロエ
チレン−へΦサフルオロプロピレン共重合体(FEP)
、エチレン−テトラフルオロエチレン共重合体(ETF
E)、テトラフルオロエチレンーパーフルオロアルキル
ヒ=ルエーテル共眠合体(PFA )等のフッ素樹脂、
ポリイミド、ポリフェニレンサルファイド、ポリエーテ
ルスルホン等から成るプラスチックシート。
Friend, this porous body is commercially available under various trade names, so it is possible to obtain and use these, and the PTFE porous upper body is provided with a reinforcing material. As the reinforcing material, a material that is breathable itself, such as a nonwoven fabric or a woven fabric, is preferably used. In addition, tetrafluoroethylene-to-Φsafluoropropylene copolymer (FEP)
, ethylene-tetrafluoroethylene copolymer (ETF
E), fluororesins such as tetrafluoroethylene-perfluoroalkyl ether co-conjugate (PFA),
A plastic sheet made of polyimide, polyphenylene sulfide, polyether sulfone, etc.

金属箔、プラスチックと金属箔の積層体であって。Metal foil, a laminate of plastic and metal foil.

多数の真通孔を設け、PTFE多孔質多孔上体性を阻害
しないようにしたものも補強材として夏用し得る。
A material with a large number of straight holes so as not to inhibit the porous properties of the PTFE porous material can also be used as a reinforcing material in the summer.

以下1図面を参照しながら本発明の詳細な説明する。第
1図および舗2図において、19!び2は厚さが約1〜
500μ集、気孔率約30〜95%のシート状のPTF
E多孔質多孔上体、−万の多孔質体lの長尺方向の片端
には複数の貫通孔3が設けられている。4.5ri多孔
質体1.2の片面に設けられた補強材であり、多孔質体
1.2の通気性を阻害しないようにする究め、該多孔質
体l。
The present invention will be described in detail below with reference to one drawing. In Figure 1 and Figure 2, 19! and 2 have a thickness of about 1~
Sheet-like PTF with 500μ collection and porosity of about 30-95%
E Porous upper body, a plurality of through holes 3 are provided at one end in the longitudinal direction of the porous body L. 4.5ri This is a reinforcing material provided on one side of the porous body 1.2, and is intended not to impede the air permeability of the porous body 1.2.

2とに部分接着(点状、筋状、網目状等)されている。2 is partially adhered (in dots, stripes, mesh, etc.).

そして、複合体相互に端縁部に訃いて重ね合わされ熱融
着によV接合されている。
Then, the composites are stacked one on top of the other with their edges touching each other and V-joined by heat fusion.

この実例においては、補強材5を熱溶融性材料とし比の
で、複合体相互の熱#!#時に補強材形成材料が溶融流
動し2貫通孔3を充てんし、この充てん物が接着性物質
6として機能し、複合体相互の接合をより強固にする。
In this example, the reinforcing material 5 is a heat-fusible material, and since the ratio is high, the mutual heat of the composite is #! At #, the reinforcing material forming material melts and flows and fills the 2 through holes 3, and this filling functions as the adhesive substance 6 to further strengthen the bond between the composites.

ま之、この接WI注物質6は接合体に剥離力が作用した
場合、該剥離力に対し強い抵抗性を示し。
However, when a peeling force is applied to the bonded body, this contact material 6 exhibits strong resistance to the peeling force.

PTFg多孔質多孔質層10層間破壊する。PTFg porous porous layer 10 interlayer failure.

なお、補強材4も熱浴融性材料とし1両補強何4および
5の浴融収分により貫通孔3を光てんすることもできる
In addition, the reinforcing material 4 can also be made of a hot bath meltable material, and the through hole 3 can be light-tightened by the bath melting amount of the reinforcing materials 4 and 5.

第3図は本発明の他の実例を示し1両面に補強材4.7
を有するPTFE多孔質多孔質エート1面に補強材5.
8を有するP 1’ F B多孔質ンート2が端縁部に
おいて重ね合わされ熱融着により接合されている。この
接合体でa、n強材72よび5の少なくとも一方は熱浴
融性材料から吠ジ、多孔質シート1の端縁部に設けらr
t九貫通孔3は、その溶融成分により充てんさnている
Figure 3 shows another example of the invention, with 4.7 reinforcements on each side.
Reinforcing material 5.
The P 1' F B porous trunks 2 having P 8 are overlapped at the edge portions and joined by heat fusion. In this joined body, at least one of the reinforcing members 72 and 5 is made of a hot bath meltable material, and is provided at the edge of the porous sheet 1.
The through hole 3 is filled with the molten component.

上記実例では補強材を接着性物質として利用したが1本
発明においては、複合体相互の接合に際し、PTFE多
孔質多孔上体部に設けられ几貫通孔内にホットメルト接
着剤、熱硬化型接着剤、感圧性接膚剤等の接着剤を光て
んしてもよい。
In the above example, the reinforcing material was used as an adhesive substance, but in the present invention, when bonding the composites together, hot melt adhesive, thermosetting adhesive, etc. Adhesives such as adhesives, pressure-sensitive skin adhesives, etc. may also be applied.

かような接合体は、端縁部に貫通孔を有するPTFE多
孔質多孔上体表面に設けられた補強材から収る複合体の
前記端縁部上に、PTFE多孔質多孔上体に補強材が設
けらn2複合体における補強材の端縁部を重ね合わせ1
次いで重ね合わせ部を加熱加圧することにより、前記貫
通孔を補強材の浴融成分により充てんすると共に複合体
相互全融着せしめることを特徴とする方法に等よって製
造し得る。
Such a bonded body includes a reinforcing material provided on the PTFE porous upper body on the edge of the composite body, which is received from a reinforcing material provided on the surface of the PTFE porous upper body having through-holes at the edge. Overlap the edges of the reinforcement in the n2 composite with 1
It can be manufactured by a method characterized in that the overlapping portions are then heated and pressurized to fill the through holes with the bath melting component of the reinforcing material and to completely fuse the composites together.

上記方法による場合に、先ず、PTFE多孔質体lとそ
の片面に設けられた補強材から収り、且つ多孔質体1の
端縁部に所定数の貫通孔3を有する複合体と、PTFE
多孔質多孔上体2材5から成る複合体を用意する。
In the case of the above method, first, a composite body containing a PTFE porous body 1 and a reinforcing material provided on one side thereof and having a predetermined number of through holes 3 at the edge of the porous body 1;
A composite consisting of a porous upper body 2 and a material 5 is prepared.

そして、第4図に示すように、前者の複合体の貫通孔形
成端縁部に、後者の複合体の補強材5を暇ね合わせる。
Then, as shown in FIG. 4, the reinforcing material 5 of the latter composite is fitted onto the through-hole forming edge of the former composite.

次に、この重ね合わせ部を適宜の手段により加熱加圧し
、補強材4pよび5の少なくとも一方を溶融せしめ1貫
通孔3を補強材の溶融成分により充てんすると共に複合
体相互を@着せしめ几ば。
Next, this overlapped portion is heated and pressurized by appropriate means to melt at least one of the reinforcing materials 4p and 5, filling the through holes 1 and 3 with the molten component of the reinforcing material, and attaching the composites to each other. .

前記第1図に示すような本発明の接合体が得られる。A joined body of the present invention as shown in FIG. 1 is obtained.

そして、補強材4をも溶融せしめる場合には。And when the reinforcing material 4 is also melted.

力えは、第5図に示すように、該補強材4にも貫通孔9
があってもよい。この貫通孔9r!複合体相互の熱PA
盾時に、補強材4の浴融により閉塞せしめられる。P 
TFE多孔質体および補強材双方に貫通孔を有する複合
体の万が、PTFE多孔質多孔上体貫通孔を有する複合
体よりも侍ヤ丁いので、かような複合体の使用は1本方
法の実施をより容易にするものである、 (実施例) 以下、実施例により本発明を更に詳細に説明する。
As shown in FIG. 5, the reinforcing material 4 also has a through hole 9.
There may be. This through hole 9r! Complex mutual thermal PA
At the time of shielding, the reinforcing material 4 is closed by bath melting. P
A composite with through holes in both the TFE porous body and the reinforcing material is more durable than a composite with through holes in the porous PTFE body, so such a composite can only be used in one method. (Examples) The present invention will be explained in more detail below with reference to Examples.

実施例 厚さ25μ儀、気孔率80%、微孔の孔径0.6重講幅
5001111の長尺PTFE多孔質シートの片面に、
厚さ80μ惧のポリエチレン不織布(融点130℃)を
重ね合せ、温度145℃、圧力3kg/−の条件で加熱
加圧し1両者を熱融着により積層し複合体を得る。
Example: On one side of a long PTFE porous sheet with a thickness of 25 μm, a porosity of 80%, a micropore diameter of 0.6, and a width of 5001111 mm,
Polyethylene nonwoven fabrics (melting point: 130 DEG C.) each having a thickness of 80 .mu.m are stacked one on top of the other, heated and pressed under conditions of a temperature of 145 DEG C. and a pressure of 3 kg/-, and the two are laminated by thermal fusion to obtain a composite.

この複合体2枚のうちの1枚の長尺方向の一端部におい
て、直径0.5鵡のミシン針にて1鵡間隔で貫通孔を設
ける(この複合体の構造は第5図と同じ)、。
At one end of one of the two composites in the longitudinal direction, use a sewing needle with a diameter of 0.5mm to make through holes at 1mm intervals (the structure of this composite is the same as in Figure 5). ,.

貫通孔を設けた複合体と貫通孔を設けてない複合体を第
3図に示すのと同様に端縁部で重ね合わせ、この重ね合
わせ部をインパルスヒートシーラにエリ、温度150℃
、圧力3ゆ/−の条件で3分間加熱加圧し0重ね合わせ
部において両ポリオレフイン不織布を溶融せしめ、溶融
分によりPTFE多孔質多孔上体らnた貫通孔を充てん
すると共に複合体相互を熱融着せしめ、第1図と同構造
の接合体を得几。
A composite with through holes and a composite without through holes are overlapped at their edges in the same way as shown in Figure 3, and this overlapping part is applied to an impulse heat sealer at a temperature of 150°C.
The polyolefin nonwoven fabrics were heated and pressed for 3 minutes at a pressure of 3 Y/- to melt the two polyolefin nonwoven fabrics at the overlapping part, and the melted material filled the through holes in the PTFE porous upper body and thermally fused the composite together. Dress it up and obtain a joined body with the same structure as in Figure 1.

なお、ポリオレフィン不織布に設けらn7?−貫通孔は
上記熱融渚時に、該不織布の溶融流動により閉塞せしめ
られていた。
In addition, if the polyolefin nonwoven fabric is provided with n7? - The through holes were closed by the melt flow of the nonwoven fabric during the above-mentioned thermal sanding.

この接合体の剥離力f:JIS  K  6328の5
゜3.7項VC示される方法で測定し定ところ8貫通孔
存在部では350JF/1m幅であっt0比較例 貫通孔を設けないこと以外は全て実施例と同様に作業し
て接合体を得た。
Peeling force f of this bonded body: JIS K 6328-5
゜It was measured by the method shown in Section 3.7 VC, and the width was 350JF/1m in the area where 8 through holes were present.t0 Comparative Example All operations were performed in the same manner as in the example except that no through holes were provided to obtain a joined body. Ta.

この接合体について、実施例と同じ剥離試験を行なった
ところ、剥離力80.jir/lc*It@ノとき、P
TPg多孔質多孔層間破壊が生じた。
When this bonded body was subjected to the same peel test as in the example, the peel strength was 80. jir/lc*It@Notoki, P
TPg porous interlayer failure occurred.

(発明の効果) 本発明の接合体は複合体相互が端縁接合されたもので、
一方の複合体のPTFE多孔質多孔上体孔を設け、この
貫通孔に接着性物質が充てんされているので、剥離力に
対する強い抵抗性を示し。
(Effects of the Invention) The joined body of the present invention is one in which composites are edge-joined to each other,
One of the composites has pores in the porous upper body of the PTFE composite, and the through-holes are filled with an adhesive substance, so it exhibits strong resistance to peeling force.

PTFE多孔質体の層間破壊の生じ難い利点がある。This has the advantage that interlayer failure of the PTFE porous material is less likely to occur.

lた9本発明の方法は貫通孔を設けた複合体と貫通孔を
有しない複合体t一端縁部で重ね合わせ。
In the method of the present invention, a composite body with through holes and a composite body without through holes are overlapped at one end edge.

これを加圧加熱するという簡単な操作で接合体が得らn
るという特徴を有する。
A bonded body can be obtained by a simple operation of pressurizing and heating this.
It has the characteristic of

【図面の簡単な説明】[Brief explanation of drawings]

第1図および第2図は本発明に係る接合体の実例を示す
一部切入平面図および一部切欠断面図。 第3図に本発明に係る接合体の他の実例を示す一部切欠
断面図、第4図は本発明に係る接合体の製造法の実例を
示し、複合体相互を端縁部において重ね合わせた状態の
一部切欠断面図、第5図は本発明の製造法に用いる複合
体の実例を示す一部切欠断面図、第6図および第7図は
従来の接合体および該接合体の層間破壊状態を示す一部
切欠断面図である。
1 and 2 are a partially cutaway plan view and a partially cutaway sectional view showing an example of a joined body according to the present invention. Fig. 3 is a partially cutaway sectional view showing another example of the joined body according to the present invention, and Fig. 4 shows an example of the method for manufacturing the joined body according to the present invention, in which the composites are overlapped at the edge portions. FIG. 5 is a partially cutaway sectional view showing an example of a composite used in the manufacturing method of the present invention, and FIGS. 6 and 7 show a conventional bonded body and the interlayer structure of the bonded body. FIG. 3 is a partially cutaway sectional view showing a destroyed state.

Claims (2)

【特許請求の範囲】[Claims] (1)端縁部に貫通孔を有するポリテトラフルオロエチ
レン多孔質体とその表面に設けられた補強材から成る複
合体の前記端縁部上に、ポリテトラフルオロエチレン多
孔質体の表面に補強材が設けられた複合体における補強
材の端縁部が重ね合わされて接合されており、且つ前記
貫通孔には接着性物質が充てんされていることを特徴と
する接合体。
(1) Reinforce the surface of the polytetrafluoroethylene porous material on the edge of the composite consisting of a polytetrafluoroethylene porous material having through holes at the edge and a reinforcing material provided on its surface. What is claimed is: 1. A joined body, characterized in that edge parts of reinforcing materials in a composite body provided with reinforcing materials are overlapped and joined, and the through holes are filled with an adhesive substance.
(2)端縁部に貫通孔を有するポリテトラフルオロエチ
レン多孔質体とその表面に設けられた補強材から成る複
合体の前記端縁部上に、ポリテトラフルオロエチレン多
孔質体の表面に補強材が設けられた複合体における補強
材の端縁部を重ね合わせ、次いで重ね合わせ部を加熱加
圧することにより、前記貫通孔を補強材の溶融成分によ
り充てんすると共に複合体相互を融着せしめることを特
徴とする接合体の製造法。
(2) Reinforce the surface of the polytetrafluoroethylene porous material on the edge of the composite consisting of a polytetrafluoroethylene porous material having through holes at the edge and a reinforcing material provided on its surface. The edge portions of the reinforcing material in the composite body provided with the reinforcing material are overlapped, and then the overlapping portion is heated and pressurized to fill the through hole with the molten component of the reinforcing material and fuse the composite bodies together. A method for producing a bonded body characterized by:
JP1949890A 1990-01-29 1990-01-29 Joint and method for producing the joint Expired - Lifetime JP2899035B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1949890A JP2899035B2 (en) 1990-01-29 1990-01-29 Joint and method for producing the joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1949890A JP2899035B2 (en) 1990-01-29 1990-01-29 Joint and method for producing the joint

Publications (2)

Publication Number Publication Date
JPH03222737A true JPH03222737A (en) 1991-10-01
JP2899035B2 JP2899035B2 (en) 1999-06-02

Family

ID=12001037

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1949890A Expired - Lifetime JP2899035B2 (en) 1990-01-29 1990-01-29 Joint and method for producing the joint

Country Status (1)

Country Link
JP (1) JP2899035B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012135978A (en) * 2010-12-27 2012-07-19 Taiyo Kogyo Corp Method for joining resin sheets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012135978A (en) * 2010-12-27 2012-07-19 Taiyo Kogyo Corp Method for joining resin sheets

Also Published As

Publication number Publication date
JP2899035B2 (en) 1999-06-02

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