JP2746568B2 - Fluororesin laminate - Google Patents

Fluororesin laminate

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Publication number
JP2746568B2
JP2746568B2 JP8184766A JP18476696A JP2746568B2 JP 2746568 B2 JP2746568 B2 JP 2746568B2 JP 8184766 A JP8184766 A JP 8184766A JP 18476696 A JP18476696 A JP 18476696A JP 2746568 B2 JP2746568 B2 JP 2746568B2
Authority
JP
Japan
Prior art keywords
fluororesin
heat
fusible
laminate
powder layer
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
JP8184766A
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Japanese (ja)
Other versions
JPH08323281A (en
Inventor
子 秀 洋 益
橋 新 二 高
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.)
NIPPON BARUKAA KOGYO KK
Original Assignee
NIPPON BARUKAA KOGYO KK
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Publication date
Application filed by NIPPON BARUKAA KOGYO KK filed Critical NIPPON BARUKAA KOGYO KK
Priority to JP8184766A priority Critical patent/JP2746568B2/en
Publication of JPH08323281A publication Critical patent/JPH08323281A/en
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Publication of JP2746568B2 publication Critical patent/JP2746568B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Description

【発明の詳細な説明】 【0001】 【発明の技術分野】本発明は、無機繊維などの基材繊維
とフッ素樹脂フィルムとからなるフッ素樹脂積層体およ
びその利用方法に関し、さらに詳しくは、金属管体ある
いは合成樹脂成形品などを保護する際に用いられる、基
材繊維とフッ素樹脂フィルムとからなるフッ素樹脂積層
体およびその利用方法に関する。 【0002】 【発明の技術的背景ならびにその問題点】フッ素樹脂
は、耐熱性、耐候性、耐化学薬品性、離型性、滑り特
性、非粘着性などの点において、他の合成樹脂と比較し
て、著しく優れた特性を有しており、この特性を利用し
て、腐蝕性流体あるいは高温流体を扱うパイプライン、
タンクあるいは機械装置などの耐食性ライニング材とし
て広く利用されている。 【0003】ところがフッ素樹脂は、上記のように非粘
着性であるため、他の材質たとえば金属、合成樹脂など
との接着は、接着剤を用いてもかなり困難である。した
がってたとえば金属管体の内周面をライニングする際に
用いられるフッ素樹脂製ライニング材と金属管体との接
着力を高める方法がいくつか提案されている。 【0004】またフッ素樹脂製品、たとえばフッ素樹脂
製のボトル、角槽は負圧条件で使用すると、機械的強度
に劣るため変形してしまうことがあり、このためフッ素
樹脂製品の周面をガラス繊維強化プラスチック(FR
P)などで補強することが望まれるが、フッ素樹脂とF
RPとの接着は、接着剤を用いてもかなり困難である。 【0005】このような問題点を解決するため、ガラス
繊維などの無機繊維の表面に、フッ素樹脂製フィルムを
積層してなるフッ素樹脂積層体が知られている。しかし
ながら、上記のような無機繊維の表面にフッ素樹脂製フ
ィルムを圧着して積層してなるフッ素樹脂積層体は、無
機繊維とフッ素樹脂製フィルムとの接合強度が弱いた
め、このフッ素樹脂積層体を介して、金属とフッ素樹脂
製シートとを接着しても接着強度が小さいという大きな
問題点があった。また上記のフッ素樹脂積層体は無機繊
維とフッ素樹脂製フィルムとを加熱して接合するに際し
て、加熱時に無機繊維とフッ素樹脂製フィルムとの熱膨
張率の差によって大きく反ってしまうことがあるという
問題点もあった。 【0006】 【発明の目的】本発明は、上記のような従来技術に伴う
問題点を解決しようとするものであって、金属あるいは
プラスチックとの接着性に優れるとともに、加熱された
場合にもフッ素樹脂積層体に反りなどが生ずることがな
く、したがって優れた接着強度を提供しうるような、基
材繊維とフッ素樹脂フィルムとからなるフッ素樹脂積層
体およびその利用方法を提供することを目的としてい
る。 【0007】 【発明の概要】本発明に係るフッ素樹脂積層体は、基材
繊維表面にフッ素樹脂ディスパージョンを含ませた後、
この基材繊維表面に熱溶融性フッ素樹脂粉末層を設け、
次いで前記フッ素樹脂または熱溶融性フッ素樹脂の溶融
温度のうちの高い方の溶融温度以上の温度に加熱焼成し
て、前記熱溶融性フッ素樹脂粉末層の粉末を互いに融着
してなることを特徴としている。 【0008】本発明に係る金属管体保護用フッ素樹脂積
層体及び合成樹脂成形品保護用フッ素樹脂積層体は、何
れも上記フッ素樹脂積層体からなることを特徴としてい
る。本発明に係る耐食性ライニング管体は、基材繊維表
面にフッ素樹脂ディスパージョンを含ませた後、この基
材繊維表面に熱溶融性フッ素樹脂粉末層を設け、次いで
前記フッ素樹脂または熱溶融性フッ素樹脂の溶融温度の
うちの高い方の溶融温度以上の温度に加熱焼成して、前
記熱溶融性フッ素樹脂粉末層の粉末を互いに融着してな
るフッ素樹脂積層体を、フッ素樹脂製チューブの外周
に、該積層体の熱溶融性フッ素樹脂粉末層が設けられた
面が接するように密着させた後加熱して、フッ素樹脂製
チューブとフッ素樹脂積層体とを一体化させ、次いで得
られた一体化物を管体中に挿入してなることを特徴とし
ている。本発明に係る強化フッ素樹脂角槽あるいはボト
ルは、基材繊維表面にフッ素樹脂ディスパージョンを含
ませた後、この基材繊維表面に熱溶融性フッ素樹脂粉末
層を設け、次いで前記フッ素樹脂または熱溶融性フッ素
樹脂の溶融温度のうちの高い方の溶融温度以上の温度に
加熱焼成して、前記熱溶融性フッ素樹脂粉末層の粉末を
互いに融着してなるフッ素樹脂積層体を、フッ素樹脂製
シートの一面に、該積層体の熱溶融性フッ素樹脂粉末層
が設けられた面が接するように密着させた後加熱して、
フッ素樹脂製シートとフッ素樹脂積層体とを一体化さ
せ、次いで得られた一体化物を被着体としての角槽ある
いはボトルに、一体化物のフッ素樹脂積層体の基材繊維
面が接するようにして接合してなることを特徴としてい
る。本発明に係る補強されたフッ素樹脂製品は、基材繊
維表面にフッ素樹脂ディスパージョンを含ませた後、こ
の基材繊維表面に熱溶融性フッ素樹脂粉末層を設け、次
いで前記フッ素樹脂または熱溶融性フッ素樹脂の溶融温
度のうちの高い方の溶融温度以上の温度に加熱焼成し
て、前記熱溶融性フッ素樹脂粉末層の粉末を互いに融着
してなるフッ素樹脂積層体を、フッ素樹脂製品の外周面
に、該積層体の熱溶融性フッ素樹脂粉末層が設けられた
面が接するように密着させた後加熱して、フッ素樹脂製
品とフッ素樹脂積層体とを一体化させ、次いで一体化物
の表面に 補強用合成樹脂材を接着させてなることを特徴
としている。本発明においては、上記フッ素樹脂製品
が、フッ素樹脂製ボトルまたは角槽であることが好まし
い。また本発明に係る第1のフッ素樹脂積層体の利用方
法は、基材繊維表面にフッ素樹脂ディスパージョンを含
ませた後、この基材繊維表面に熱溶融性フッ素樹脂粉末
層を設け、次いで前記フッ素樹脂または熱溶融性フッ素
樹脂の溶融温度のうちの高い方の溶融温度以上の温度に
加熱焼成して、前記熱溶融性フッ素樹脂粉末層の粉末を
互いに融着してなるフッ素樹脂積層体を、フッ素樹脂製
チューブの外周に、該積層体の熱溶融性フッ素樹脂粉末
層が設けられた面が接するように密着させた後加熱し
て、フッ素樹脂製チューブとフッ素樹脂積層体とを一体
化させ、次いで得られた一体化物を管体中に挿入するこ
とを特徴としている。 【0009】さらに本発明に係る第2のフッ素樹脂積層
体の利用方法は、基材繊維表面にフッ素樹脂ディスパー
ジョンを含ませた後、この基材繊維表面に熱溶融性フッ
素樹脂粉末層を設け、次いで前記フッ素樹脂または熱溶
融性フッ素樹脂の溶融温度のうちの高い方の溶融温度以
上の温度に加熱焼成して、前記熱溶融性フッ素樹脂粉末
層の粉末を互いに融着してなるフッ素樹脂積層体を、フ
ッ素樹脂製シートの一面に、該積層体の熱溶融性フッ素
樹脂粉末層が設けられた面が接するように密着させた後
加熱して、フッ素樹脂製シートとフッ素樹脂積層体とを
一体化させ、次いで得られた一体化物を被着体に、一体
化物のフッ素樹脂積層体の基材繊維面が接するようにし
て接合することを特徴としている。 【0010】さらにまた本発明に係る第3のフッ素樹脂
積層体の利用方法は、基材繊維表面にフッ素樹脂ディス
パージョンを含ませた後、この基材繊維表面に熱溶融性
フッ素樹脂粉末層を設け、次いで前記フッ素樹脂または
熱溶融性フッ素樹脂の溶融温度のうちの高い方の溶融温
度以上の温度に加熱焼成して、前記熱溶融性フッ素樹脂
粉末層の粉末を互いに融着してなるフッ素樹脂積層体
を、フッ素樹脂製品の外周面に、該積層体の熱溶融性フ
ッ素樹脂粉末層が設けられた面が接するように密着させ
た後加熱して、フッ素樹脂製品とフッ素樹脂積層体とを
一体化させ、次いで一体化物の表面に補強用合成樹脂材
を接着させることを特徴としている。 【0011】本発明に係るフッ素樹脂積層体は、基材繊
維表面にフッ素樹脂ディスパージョンを含ませた後、こ
の基材繊維表面に熱溶融性フッ素樹脂粉末層を設け、次
いで前記フッ素樹脂または熱溶融性フッ素樹脂の溶融温
度のうちの高い方の溶融温度以上の温度に加熱焼成し
て、前記熱溶融性フッ素樹脂粉末層の粉末を互いに融着
しているので、このフッ素樹脂積層体には反りが生ずる
ことがなく、したがってこのフッ素樹脂積層体を金属ま
たはフッ素樹脂シートとを接合させた場合に、優れた接
着強度が得られる。 【0012】 【発明の具体的説明】以下本発明に係るフッ素樹脂積層
体について具体的に説明する。本発明に係るフッ素樹脂
積層体1は、第1図に示すように、ガラス繊維、カーボ
ン繊維、金属繊維などの無機繊維あるいは耐熱性有機繊
維などの基材繊維2の表面に、フッ素樹脂ディスパージ
ョン3を含ませた後、この基材繊維2の表面に熱溶融性
フッ素樹脂粉末層4を設け、次いでディスパージョン中
のフッ素樹脂または熱溶融性フッ素樹脂の溶融温度のう
ち高い方の溶融温度以上の温度に加熱焼成して、前記熱
溶融性フッ素樹脂粉末層の粉末を互いに融着して、構成
されている。 【0013】このようなフッ素樹脂積層体は、前記「発
明の技術分野」の項にも記載したように金属管体あるい
は合成樹脂成形品などを保護する際に用いられる。基材
繊維2としては、上記のような繊維類が用いられるが、
このうち特にガラス繊維が好ましい。またこの基材繊維
2は、織布であっても不織布であってもよく、具体的に
はガラスロービングクロス、ガラスチョップドマットな
どが用いられる。 【0014】このような基材繊維2の表面に、フッ素樹
脂ディスパージョン3が含ませられる。フッ素樹脂ディ
スパージョン3としては、水性ディスパージョンが好ま
しく用いられる。またディスパージョン中のフッ素樹脂
としては、ポリテトラフルオロエチレン(PTFE)、
テトラフルオロエチレンとパーフルオロアルキルビニル
エーテルとの共重合体であるPFA、テトラフルオロエ
チレンとヘキサフルオロプロピレンとの共重合体である
FEP、テトラフルオロエチレンとヘキサフルオロプロ
ピレンとパーフルオロアルキルビニルエーテルとの共重
合体であるEPEなどの従来公知のフッ素樹脂が用いら
れうる。このうち特にPTFEが好ましい。 【0015】上記のフッ素樹脂ディスパージョン中に
は、必要に応じてフッ素樹脂以外の有機樹脂を含ませる
こともできる。このような有機樹脂としては、ポリアリ
レンサルファイド樹脂とポリアミドイミド樹脂との組合
せ、ポリアリレンサルファイド樹脂とポリイミド樹脂と
の組合せ、ポリアリレンサルファイド樹脂とポリアミド
イミド樹脂とポリイミド樹脂との組合せ、ポリアリレン
サルファイド樹脂単独、ポリエーテルスルホン樹脂、エ
ポキシ樹脂などが用いられる。 【0016】また、このフッ素樹脂ディスパージョン中
には、上記のフッ素樹脂および有機樹脂に加えて、必要
に応じて、フッ素系界面滑性剤、粘度調整剤、粘結剤、
基材充填剤、雲母状酸化物、カップリング剤、湿潤剤な
どを含んでいてもよい。 【0017】さらにまた必要に応じて、上記のフッ素樹
脂ディスパージョン中に、クロムイオン、水素イオンを
含有させておくこともできる。上記のようなフッ素樹脂
ディスパージョン3を基材繊維2の表面に含ませるに
は、通常、該ディスパージョン3を基材繊維2の表面に
塗布すればよい。また場合によっては、該ディスパージ
ョン中に基材繊維を浸漬してもよい。 【0018】基材繊維2の表面に含ませられるディスパ
ージョンの量は、基材繊維1m2当り15〜300g程
度であることが好ましい。上記のようにしてフッ素樹脂
ディスパージョン3が含まされた基材繊維2の表面に、
熱溶融性フッ素樹脂粉末を均一に散布付着させて熱溶融
性フッ素樹脂粉末層4を設ける。 【0019】この熱溶融性フッ素樹脂粉末の付着量は、
基材繊維表面1m2当り5〜500g好ましくは10〜
200g程度であることが望ましい。この際用いられる
熱溶融性フッ素樹脂粉末の粒径は、0.1〜1000μ
m好ましくは50〜800μm程度である。 【0020】熱溶融性フッ素樹脂としては、テトラフル
オロエチレンとパーフルオロアルキルビニルエーテルと
の共重合体であるPFA、テトラフルオロエチレンとヘ
キサフルオロプロピレンとの共重合体であるFEP、あ
るいはテトラフルオロエチレンとヘキサフルオロプロピ
レンとパーフルオロアルキルビニルエーテルとの共重合
体であるEPEなどの熱溶融性フッ素樹脂を広く用いる
ことができる。 【0021】このようにして基材繊維2の表面に熱溶融
性フッ素樹脂粉末層を設けた後、ディスパージョン中の
フッ素樹脂の溶融温度または熱溶融性フッ素樹脂の溶融
温度のうち高い方の溶融温度以上の温度に加熱焼成す
る。たとえばPTFEの水性ディスパージョンを用いる
とともに、PFA粉末を用いた場合には、PTFEの溶
融温度である327℃以上の温度で加熱焼成することが
好ましい。この加熱焼成に際しては、熱溶融性フッ素樹
脂層に気泡が生じないように徐々に加熱することが好ま
しい。 【0022】このようにして加熱焼成すると、基材繊維
2中に含まれるフッ素樹脂ディスパージョン3中のフッ
素樹脂は互いに融着するとともに、熱溶融性フッ素樹脂
粉末層中の粉末は互いに融着して、フィルム状のフッ素
樹脂層4となる。そしてフッ素樹脂ディスパージョン3
は、基材繊維2とフッ素樹脂フィルム4とを強固に一体
化させる役割を果している。 【0023】なお上記のフッ素樹脂層4は、基材繊維2
の表面の全周にわたって設けられていることが好ましい
が、必ずしも全周にわたって設けられている必要はな
く、一部に設けられているだけであってもよい。 【0024】次に上記のようなフッ素樹脂積層体の利用
方法、並びに該方法で得られる耐食性ライニング管体、
強化フッ素樹脂角槽あるいはボトルおよび補強フッ素樹
脂製品について説明する。まず、上記のようなフッ素樹
脂積層体1を用いて、管体特に好ましくは金属管体の内
周面を、フッ素樹脂チューブによりライニングする場
、並びに該方法で得られる耐食性ライニング管体につ
いて説明する。 【0025】上記のようなフッ素樹脂積層体1を、第2
図に示すように、フッ素樹脂製チューブ5の外周に、核
積層体の熱溶融性フッ素樹脂層4が設けられた面が接す
るように密着させた後加熱して、フッ素樹脂製チューブ
とフッ素樹脂積層体とを一体化させる。次いで得られた
一体化物6を管体好ましくは金属管体中に挿入する。こ
の際、フッ素樹脂積層体の基材繊維2に、たとえばエポ
キシ系などの接着剤を塗布しておくと、管体と前記一体
化物とを強固に接着させることができるため好ましい。 【0026】このようにすると管体の内周面をフッ素樹
脂チューブでライニングすることができる。なおフッ素
樹脂製チューブを構成するフッ素樹脂としては、PTF
E、FEP、PFAなどが用いられるが、このうちPT
FEが特に好ましい。 【0027】次に上記のようなフッ素樹脂積層体1を用
いて、角槽、ボトルなどの形状をなす被着体の周面を、
フッ素樹脂シートによりライニングする場合、並びに該
方法で得られる強化フッ素樹脂角槽あるいはボトルにつ
いて説明する。 【0028】上記のようなフッ素樹脂積層体1を、第3
図に示すように、フッ素樹脂製シート7の一面に、各積
層体の熱溶融性フッ素樹脂層4が設けられた面が接する
ように密着させた後加熱して、フッ素樹脂製シートとフ
ッ素樹脂積層体とを一体化させる。次いで得られた一体
化物を合成樹脂製品などの被着体(図示せず)、たとえ
ばボトル、角槽などに、一体化物のフッ素樹脂積層の基
材繊維面が接するようにして接合する。この際フッ素樹
脂積層体の一体化物にたとえばエポキシ系樹脂などの接
着剤を塗布しておくと、被着体と前記一体化物とを強固
に接着することができる。 【0029】このようにすると、被着体の表面をフッ素
樹脂シートでライニングすることができる。なお被着体
としては、PTFEなどのフッ素樹脂、ポリエチレン、
ポリプロピレン、などの汎用合成樹脂であってもよい。 【0030】次に上記のようなフッ素樹脂積層体1を用
いて、フッ素樹脂製品の外周面に、補強用合成樹脂材を
設ける場合、並びに該方法で得られる補強フッ素樹脂製
について説明する。上記のようなフッ素樹脂積層体1
を、第4図に示すように、フッ素樹脂製品たとえばボト
ルの外周面8に、該積層体の熱溶融性フッ素樹脂層4が
接するように密着させた後加熱して、フッ素樹脂製品と
フッ素樹脂積層体とを一体化させる。次いで一体化物の
表面にFRPなどの補強用合成樹脂材9を接着させる。
この際フッ素樹脂積層体の基材繊維2に、たとえばエポ
キシ系などの接着剤10を塗布しておくと、補強用合成
樹脂材9と前記一体化物とを強固に接着させることがで
きるため好ましい。 【0031】このようにすると、ボトルなどのフッ素樹
脂製品の外周にFRPなどの補強用合成樹脂材を強固に
接着することができ、このため該フッ素樹脂製品を負圧
条件下で用いても変形することがなくなる。 【0032】 【発明の効果】本発明に係るフッ素樹脂積層体は、基材
繊維表面にフッ素樹脂ディスパージョンを含ませた後、
この基材繊維表面に熱溶融性フッ素樹脂粉末層を設け、
次いで前記フッ素樹脂または熱溶融性フッ素樹脂の溶融
温度のうちの高い方の溶融温度以上の温度に加熱焼成し
て、前記熱溶融性フッ素樹脂粉末層の粉末を互いに融着
しているので、このフッ素樹脂積層体を、基材繊維が金
属に接するようにして、この積層体を介して金属とフッ
素樹脂シートとを強固に接合することができる。またこ
の積層体1を介して、フッ素樹脂製品の外周面にFRP
などの補強用プラスチックを強固に接合することができ
る。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluororesin laminate comprising a base resin such as inorganic fibers and a fluororesin film, and a method of using the same. The present invention relates to a fluororesin laminate comprising a base fiber and a fluororesin film, which is used for protecting a body or a synthetic resin molded product, and a method of using the same. [0002] Fluororesins are compared with other synthetic resins in terms of heat resistance, weather resistance, chemical resistance, releasability, sliding properties, non-adhesiveness, and the like. As a result, it has remarkably excellent properties, and utilizing this property, pipelines that handle corrosive fluids or high-temperature fluids,
It is widely used as a corrosion-resistant lining material for tanks and mechanical devices. However, since fluororesin is non-adhesive as described above, it is very difficult to adhere to other materials such as metal and synthetic resin even by using an adhesive. Therefore, for example, several methods have been proposed for increasing the adhesive strength between the metal tube and a fluororesin lining material used when lining the inner peripheral surface of the metal tube. When a fluororesin product, such as a fluororesin bottle or square tank, is used under negative pressure conditions, it may be deformed due to poor mechanical strength. Reinforced plastic (FR
It is desirable to reinforce with P), etc.
Adhesion with RP is quite difficult even with adhesives. [0005] In order to solve such problems, there has been known a fluororesin laminate in which a fluororesin film is laminated on the surface of inorganic fibers such as glass fibers. However, a fluororesin laminate obtained by pressing and laminating a fluororesin film on the surface of the inorganic fiber as described above has a weak bonding strength between the inorganic fiber and the fluororesin film, and therefore, the fluororesin laminate is used. However, even if the metal and the fluororesin sheet are bonded to each other, there is a large problem that the bonding strength is low. In addition, when the above-mentioned fluororesin laminate is heated and bonded to an inorganic fiber and a fluororesin film, the fluororesin laminate may be greatly warped due to a difference in thermal expansion coefficient between the inorganic fiber and the fluororesin film during heating. There were also points. SUMMARY OF THE INVENTION An object of the present invention is to solve the problems associated with the prior art as described above. The object of the present invention is to provide excellent adhesion to metals or plastics, and to provide fluorine even when heated. It is an object of the present invention to provide a fluororesin laminate comprising a base fiber and a fluororesin film and a method of using the same without causing warpage or the like in the resin laminate and thus providing excellent adhesive strength. . SUMMARY OF THE INVENTION A fluororesin laminate according to the present invention comprises a fluororesin dispersion on the surface of a base fiber,
Provide a hot-melt fluororesin powder layer on the surface of this base fiber,
Then, heating and firing at a temperature equal to or higher than the higher melting temperature of the melting temperature of the fluororesin or the heat-fusible fluororesin, the powder of the heat-fusible fluororesin powder layer is fused together. And [0008] The fluororesin product for protecting a metal tube according to the present invention
What is the layered body and the fluororesin laminate for protecting synthetic resin molded products?
These are also characterized by being made of the above fluororesin laminate.
You. The corrosion-resistant lining tube according to the present invention has a substrate fiber surface.
After including the fluororesin dispersion on the surface,
Provide a hot-melt fluororesin powder layer on the surface of the fiber, then
The melting temperature of the fluororesin or hot-melt fluororesin
Heat and bake to a temperature higher than the higher melting temperature of
The heat-fusible fluororesin powder layers should not be fused together.
The fluororesin laminate to the outer periphery of the fluororesin tube
The heat-fusible fluororesin powder layer of the laminate was provided
After heating so that the surfaces are in contact with each other,
The tube and the fluororesin laminate are integrated,
Characterized by being inserted into a tube
ing. The reinforced fluororesin square tank or bottle according to the present invention
Has a fluororesin dispersion on the surface of the base fiber.
After this, the heat-fusible fluororesin powder
Layer, then the fluororesin or hot-melt fluorine
To a temperature higher than the higher of the melting temperatures of the resin
By heating and firing, the powder of the heat-fusible fluororesin powder layer
The fluororesin laminates fused together are made of fluororesin
On one surface of the sheet, a layer of the heat-fusible fluororesin powder of the laminate
Heated after making contact so that the surface provided with
Integrated fluororesin sheet and fluororesin laminate
Then, there is a square tank as an adherend with the obtained integrated product
Or, in a bottle, the base fiber of the integrated fluororesin laminate
It is characterized by being joined so that the faces come into contact
You. The reinforced fluororesin product according to the present invention comprises a base fiber.
After including the fluororesin dispersion on the fiber surface,
A heat-meltable fluororesin powder layer is provided on the surface of the base fiber of
The melting temperature of the fluororesin or hot-melt fluororesin
Baking to a temperature above the melting temperature of the higher of the
To fuse the powders of the heat-meltable fluororesin powder layer to each other.
The fluororesin laminate thus formed is applied to the outer peripheral surface of the fluororesin product.
The heat-fusible fluororesin powder layer of the laminate was provided
After heating so that the surfaces are in contact with each other,
Product and fluororesin laminate, and then
Characterized by bonding a synthetic resin material for reinforcement to the surface of
And In the present invention, the fluororesin product
However, it is preferable to use a fluoroplastic bottle or square tank.
No. Further, the first method of using the fluororesin laminate according to the present invention comprises, after including a fluororesin dispersion on the surface of the base fiber, providing a hot-melt fluororesin powder layer on the surface of the base fiber, Heating and firing at a temperature equal to or higher than the higher melting temperature of the melting temperature of the fluororesin or the heat-fusible fluororesin, a fluororesin laminate obtained by fusing the powders of the heat-fusible fluororesin powder layer to each other. Then, the laminate is heated so that the surface on which the heat-fusible fluororesin powder layer of the laminate is in contact with the outer periphery of the fluororesin tube is heated, and then the fluororesin tube and the fluororesin laminate are integrated. And then inserting the resulting integrated product into a tube. Further, in the second method of using the fluororesin laminate according to the present invention, after a fluororesin dispersion is contained on the surface of the base fiber, a heat-meltable fluororesin powder layer is provided on the surface of the base fiber. Then, a fluorinated resin obtained by heating and baking to a temperature equal to or higher than the higher melting temperature of the fusible resin or the fusible fluororesin to fuse the powders of the fusible fluororesin powder layer to each other. The laminate, on one surface of the fluororesin sheet, is heated so that the surface on which the heat-meltable fluororesin powder layer of the laminate is in contact is heated and heated, and the fluororesin sheet and the fluororesin laminate are Then, the obtained integrated product is bonded to an adherend such that the substrate fiber surface of the fluororesin laminate of the integrated product is in contact with the adherend. Further, in a third method of using the fluororesin laminate according to the present invention, after the fluororesin dispersion is contained on the surface of the base fiber, a heat-meltable fluororesin powder layer is formed on the surface of the base fiber. Provided, and then heated and baked to a temperature equal to or higher than the higher melting temperature of the melting temperature of the fluororesin or the heat-meltable fluororesin, so that the fluorine of the heat-meltable fluororesin powder layer is fused to each other. The resin laminate, on the outer peripheral surface of the fluororesin product, is heated so that the surface on which the heat-fusible fluororesin powder layer of the laminate is in contact is heated, and then the fluororesin product and the fluororesin laminate are heated. And then a reinforcing synthetic resin material is adhered to the surface of the integrated product. In the fluororesin laminate according to the present invention, after a fluororesin dispersion is contained on the surface of the base fiber, a heat-meltable fluororesin powder layer is provided on the surface of the base fiber, and then the fluororesin or the thermosetting resin is applied. Heated and baked to a temperature equal to or higher than the higher melting temperature of the melting temperature of the fusible fluororesin, and the powder of the thermofusible fluorinated resin powder layer is fused to each other. No warpage occurs, and therefore, when this fluororesin laminate is bonded to a metal or fluororesin sheet, excellent adhesive strength is obtained. DETAILED DESCRIPTION OF THE INVENTION The fluororesin laminate according to the present invention will be specifically described below. As shown in FIG. 1, a fluororesin laminate 1 according to the present invention has a fluororesin dispersion on the surface of a base fiber 2 such as an inorganic fiber such as glass fiber, carbon fiber, or metal fiber or a heat-resistant organic fiber. 3, the hot-melt fluororesin powder layer 4 is provided on the surface of the base fiber 2, and then the melting temperature of the higher of the melting temperatures of the fluororesin or the hot-melt fluororesin in the dispersion is determined. The powder of the heat-fusible fluororesin powder layer is fused to each other by heating and baking to the temperature described above. [0013] Such a fluororesin laminate is described in the aforementioned
Metal pipes as described in the section
Is used to protect synthetic resin molded articles and the like. As the base fiber 2, the above-mentioned fibers are used.
Of these, glass fibers are particularly preferred. The base fiber 2 may be a woven fabric or a nonwoven fabric, and specifically, a glass roving cloth, a glass chopped mat, or the like is used. The surface of the base fiber 2 contains the fluororesin dispersion 3. As the fluororesin dispersion 3, an aqueous dispersion is preferably used. Further, as the fluororesin in the dispersion, polytetrafluoroethylene (PTFE),
PFA which is a copolymer of tetrafluoroethylene and perfluoroalkyl vinyl ether, FEP which is a copolymer of tetrafluoroethylene and hexafluoropropylene, and a copolymer of tetrafluoroethylene, hexafluoropropylene and perfluoroalkyl vinyl ether A conventionally known fluororesin such as EPE can be used. Of these, PTFE is particularly preferred. The above-mentioned fluororesin dispersion may contain an organic resin other than the fluororesin, if necessary. Examples of such organic resins include a combination of a polyarylene sulfide resin and a polyamide imide resin, a combination of a polyarylene sulfide resin and a polyimide resin, a combination of a polyarylene sulfide resin, a polyamide imide resin, and a polyimide resin, Arylene sulfide resin alone, polyether sulfone resin, epoxy resin and the like are used. In addition, in the fluororesin dispersion, in addition to the above-mentioned fluororesin and the organic resin, if necessary, a fluorine-based interfacial lubricant, a viscosity modifier, a binder,
It may contain a base material filler, a mica-like oxide, a coupling agent, a wetting agent and the like. Further, if necessary, chromium ions and hydrogen ions can be contained in the above fluororesin dispersion. In order to include the fluororesin dispersion 3 on the surface of the base fiber 2 as described above, the dispersion 3 is usually applied to the surface of the base fiber 2. In some cases, the base fiber may be immersed in the dispersion. The amount of the dispersion contained on the surface of the base fiber 2 is preferably about 15 to 300 g per 1 m 2 of the base fiber. On the surface of the base fiber 2 containing the fluororesin dispersion 3 as described above,
The heat-fusible fluororesin powder layer 4 is provided by uniformly spraying and adhering the heat-fusible fluororesin powder. The adhesion amount of the hot-melt fluororesin powder is as follows:
5 to 500 g per 1 m 2 of the base fiber surface, preferably 10 to 500 g
It is desirable that the weight is about 200 g. The particle size of the hot-melt fluororesin powder used at this time is 0.1 to 1000 μm.
m, preferably about 50 to 800 μm. Examples of the heat-fusible fluororesin include PFA, which is a copolymer of tetrafluoroethylene and perfluoroalkylvinyl ether, FEP, which is a copolymer of tetrafluoroethylene and hexafluoropropylene, or tetrafluoroethylene and hexafluoropropylene. A hot-melt fluororesin such as EPE, which is a copolymer of fluoropropylene and perfluoroalkyl vinyl ether, can be widely used. After the heat-fusible fluororesin powder layer is provided on the surface of the base fiber 2 in this manner, the higher of the melting temperature of the fluororesin in the dispersion or the melting temperature of the heat-fusible fluororesin is used. Heat and bake to a temperature above the temperature. For example, when an aqueous dispersion of PTFE is used and PFA powder is used, it is preferable to heat and bake at a temperature of 327 ° C. or more, which is the melting temperature of PTFE. At the time of this heating and firing, it is preferable to gradually heat the heat-meltable fluororesin layer so as not to generate air bubbles. When heated and fired in this manner, the fluororesin in the fluororesin dispersion 3 contained in the base fiber 2 is fused together, and the powder in the heat-meltable fluororesin powder layer is fused together. Thus, a film-shaped fluororesin layer 4 is formed. And fluororesin dispersion 3
Plays a role of firmly integrating the base fiber 2 and the fluororesin film 4. The above-mentioned fluororesin layer 4 is made of the base fiber 2
Is preferably provided over the entire circumference of the surface, but need not necessarily be provided over the entire circumference, and may be provided only partially. Next, the method of using the above-mentioned fluororesin laminate, the corrosion-resistant lining tube obtained by the method,
Reinforced fluororesin square tank or bottle and reinforced fluorocarbon
The fat product will be described. First, when the inner peripheral surface of a pipe, particularly preferably a metal pipe, is lined with a fluororesin tube using the fluororesin laminate 1 as described above, and the corrosion-resistant lining pipe obtained by the method is described below. will be described. The fluororesin laminate 1 as described above is
As shown in the figure, the core of the nucleus laminate is brought into close contact with the outer periphery of the fluororesin tube 5 so that the surface on which the heat-fusible fluororesin layer 4 is provided is brought into contact with the fluororesin tube. Integrate with the laminate. Next, the obtained integrated product 6 is inserted into a tube, preferably a metal tube. At this time, it is preferable to apply an adhesive such as an epoxy-based adhesive to the base fiber 2 of the fluororesin laminate because the tube and the integrated body can be firmly bonded. In this manner, the inner peripheral surface of the tube can be lined with the fluororesin tube. The fluororesin constituting the fluororesin tube is PTF.
E, FEP, PFA, etc. are used, of which PT
FE is particularly preferred. Next, using the fluororesin laminate 1 as described above, the peripheral surface of an adherend having a shape such as a square tank or a bottle is
When lining with a fluororesin sheet , and
The reinforced fluororesin square tank or bottle obtained by the method will be described. The fluororesin laminate 1 as described above is
As shown in the drawing, the laminate is heated so that the surface of the laminated body on which the heat-fusible fluororesin layer 4 is provided is in contact with one surface of the fluororesin sheet 7 and then heated, so that the fluororesin sheet and the fluororesin are heated. Integrate with the laminate. Next, the obtained integrated product is bonded to an adherend (not shown) such as a synthetic resin product, for example, a bottle, a square tank, or the like so that the substrate fiber surface of the fluororesin laminate of the integrated product is in contact with the product. At this time, if an adhesive such as an epoxy resin is applied to the integrated body of the fluororesin laminate, the adherend and the integrated body can be firmly bonded. In this case, the surface of the adherend can be lined with the fluororesin sheet. As the adherend, a fluororesin such as PTFE, polyethylene,
A general-purpose synthetic resin such as polypropylene may be used. Next, when a reinforcing synthetic resin material is provided on the outer peripheral surface of a fluororesin product using the fluororesin laminate 1 as described above, and the reinforced fluororesin obtained by the method is used.
The product will be described. Fluororesin laminate 1 as described above
As shown in FIG. 4, the heat-fusible fluororesin layer 4 of the laminate is brought into close contact with the fluororesin product, for example, the outer peripheral surface 8 of the bottle, and then heated to heat the fluororesin product and the fluororesin. Integrate with the laminate. Next, a reinforcing synthetic resin material 9 such as FRP is adhered to the surface of the integrated product.
At this time, it is preferable to apply an adhesive 10 such as an epoxy resin to the base fiber 2 of the fluororesin laminate because the synthetic resin material 9 for reinforcement and the integrated material can be firmly bonded. In this way, a reinforcing synthetic resin material such as FRP can be firmly adhered to the outer periphery of a fluororesin product such as a bottle, and therefore, even if the fluororesin product is used under negative pressure conditions, it can be deformed. Will not be done. The fluororesin laminate according to the present invention is characterized in that the surface of the base fiber contains the fluororesin dispersion,
Provide a hot-melt fluororesin powder layer on the surface of this base fiber,
Then, the resin is heated and fired at a temperature equal to or higher than the higher melting temperature of the melting temperature of the fluororesin or the heat-meltable fluororesin, and the powder of the heat-meltable fluororesin powder layer is fused to each other. The metal and the fluororesin sheet can be firmly joined to each other through the laminate so that the base fiber is in contact with the metal. Further, the FRP is applied to the outer peripheral surface of the fluororesin product via the laminate 1.
And other reinforcing plastics can be firmly joined.

【図面の簡単な説明】 【図1】 第1図は、本発明に係るフッ素樹脂積層体の
断面図である。 【図2】 第2図はこのフッ素樹脂積層体の利用方法を
示す説明図である。 【図3】 第3図はこのフッ素樹脂積層体の利用方法を
示す説明図である。 【図4】 第4図はこのフッ素樹脂積層体の利用方法を
示す説明図である。 【符号の説明】 1…フッ素樹脂積層体 2…基材繊維 3…フッ素樹脂ディスパージョン 4…溶融性フッ素樹脂層
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a fluororesin laminate according to the present invention. FIG. 2 is an explanatory view showing a method of using the fluororesin laminate. FIG. 3 is an explanatory view showing a method of using the fluororesin laminate. FIG. 4 is an explanatory view showing a method of using the fluororesin laminate. [Description of Signs] 1 ... Fluorine resin laminate 2 ... Base fiber 3 ... Fluorine resin dispersion 4 ... Fusible fluororesin layer

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI B29L 23:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI B29L 23:00

Claims (1)

(57)【特許請求の範囲】 1.基材繊維表面にフッ素樹脂ディスパージョンを含ま
せた後、この基材繊維表面に熱溶融性フッ素樹脂粉末層
を設け、次いで前記フッ素樹脂または熱溶融性フッ素樹
脂の溶融温度のうちの高い方の溶融温度以上の温度に加
熱焼成して、前記熱溶融性フッ素樹脂粉末層の粉末を互
いに融着してなることを特徴とするフッ素樹脂積層体。2. 基材繊維表面にフッ素樹脂ディスパージョンを含ま
せた後、この基材繊維表面に熱溶融性フッ素樹脂粉末層
を設け、次いで前記フッ素樹脂または熱溶融性フッ素樹
脂の溶融温度のうちの高い方の溶融温度以上の温度に加
熱焼成して、前記熱溶融性フッ素樹脂粉末層の粉末を互
いに融着してなることを特徴とする金属管体保護用フッ
素樹脂積層体。3. 基材繊維表面にフッ素樹脂ディスパージョンを含ま
せた後、この基材繊維表面に熱溶融性フッ素樹脂粉末層
を設け、次いで前記フッ素樹脂または熱溶融性フッ素樹
脂の溶融温度のうちの高い方の溶融温度以上の温度に加
熱焼成して、前記熱溶融性フッ素樹脂粉末層の粉末を互
いに融着してなることを特徴とする合成樹脂成形品保護
用フッ素樹脂積層体。4. 基材繊維表面にフッ素樹脂ディスパージョンを含ま
せた後、この基材繊維表面に熱溶融性フッ素樹脂粉末層
を設け、次いで前記フッ素樹脂または熱溶融性フッ素樹
脂の溶融温度のうちの高い方の溶融温度以上の温度に加
熱焼成して、前記熱溶融性フッ素樹脂粉末層の粉末を互
いに融着してなるフッ素樹脂積層体を、 フッ素樹脂製チューブの外周に、該積層体の熱溶融性フ
ッ素樹脂粉末層が設けられた面が接するように密着させ
た後加熱して、フッ素樹脂製チューブとフッ素樹脂積層
体とを一体化させ、次いで得られた一体化物を管体中に
挿入してなることを特徴とする耐食性ライニング管体。5. 基材繊維表面にフッ素樹脂ディスパージョンを含ま
せた後、この基材繊維表面に熱溶融性フッ素樹脂粉末層
を設け、次いで前記フッ素樹脂または熱溶融性フッ素樹
脂の溶融温度のうちの高い方の溶融温度以上の温度に加
熱焼成して、前記熱溶融性フッ素樹脂粉末層の粉末を互
いに融着してなるフッ素樹脂積層体を、 フッ素樹脂製シートの一面に、該積層体の熱溶融性フッ
素樹脂粉末層が設けられた面が接するように密着させた
後加熱して、フッ素樹脂製シートとフッ素樹脂積層体と
を一体化させ、次いで得られた一体化物を被着体として
の角槽あるいはボトルに、一体化物のフッ素樹脂積層体
の基材繊維面が接するようにして接合してなることを特
徴とする強化フッ素樹脂角槽あるいはボトル。6. 基材繊維表面にフッ素樹脂ディスパージョンを含ま
せた後、この基材繊維表面に熱溶融性フッ素樹脂粉末層
を設け、次いで前記フッ素樹脂または熱溶融性フッ素樹
脂の溶融温度のうちの高い方の溶融温度以上の温度に加
熱焼成して、前記熱溶融性フッ素樹脂粉末層の粉末を互
いに融着してなるフッ素樹脂積層体を、フッ素樹脂製品
の外周面に、該積層体の熱溶融性フッ素樹脂粉末層が設
けられた面が接するように密着させた後加熱して、フッ
素樹脂製品とフッ素樹脂積層体とを一体化させ、次いで
一体化物の表面に補強用合成樹脂材を接着させてなるこ
とを特徴とする補強されたフッ素樹脂製品。7. 上記フッ素樹脂製品が、フッ素樹脂製ボトルまたは
角槽である請求項6に記載の補強されたフッ素樹脂製
品。
(57) [Claims] After including the fluororesin dispersion on the substrate fiber surface, a heat-fusible fluororesin powder layer is provided on the substrate fiber surface, and then the higher of the melting temperatures of the fluororesin or the heat-fusible fluororesin. A fluororesin laminate obtained by heating and firing at a temperature equal to or higher than a melting temperature to fuse the powders of the heat-meltable fluororesin powder layers to each other. 2. After including the fluororesin dispersion on the substrate fiber surface, a heat-fusible fluororesin powder layer is provided on the substrate fiber surface, and then the higher of the melting temperatures of the fluororesin or the heat-fusible fluororesin. A fluororesin laminate for protecting a metal tube, wherein the laminate is heated and fired at a temperature equal to or higher than a melting temperature to fuse the powders of the heat-meltable fluororesin powder layers to each other. 3. After including the fluororesin dispersion on the substrate fiber surface, a heat-fusible fluororesin powder layer is provided on the substrate fiber surface, and then the higher of the melting temperatures of the fluororesin or the heat-fusible fluororesin. A fluororesin laminate for protecting a synthetic resin molded product, characterized in that it is heated and fired at a temperature equal to or higher than a melting temperature to fuse the powders of the heat-meltable fluororesin powder layers to each other. 4. After including the fluororesin dispersion on the substrate fiber surface, a heat-fusible fluororesin powder layer is provided on the substrate fiber surface, and then the higher of the melting temperatures of the fluororesin or the heat-fusible fluororesin. A fluorinated resin laminate obtained by heating and sintering to a temperature equal to or higher than the melting temperature and fusing the powder of the fusible fluororesin powder layer to each other is provided on the outer periphery of a fluorinated resin tube, with the fusible fluorine of the laminated body. After the resin powder layer is brought into close contact with the surface provided with the resin powder layer, heating is performed to integrate the fluororesin tube and the fluororesin laminate, and then the obtained integrated product is inserted into a tube. A corrosion-resistant lining tube characterized by the following. 5. After including the fluororesin dispersion on the substrate fiber surface, a heat-fusible fluororesin powder layer is provided on the substrate fiber surface, and then the higher of the melting temperatures of the fluororesin or the heat-fusible fluororesin. A fluorinated resin laminate obtained by heating and sintering to a temperature equal to or higher than the melting temperature and fusing the powder of the fusible fluororesin powder layer to each other is coated on one surface of the fluororesin sheet with the fusible fluorine of the laminate. After the resin powder layer is brought into close contact with the surface provided with the resin powder layer, heating is performed to integrate the fluororesin sheet and the fluororesin laminate, and then the obtained integrated product is used as a square tank as an adherend or A reinforced fluororesin square tank or bottle, which is joined to a bottle such that a substrate fiber surface of an integrated fluororesin laminate is in contact with the bottle. 6. After including the fluororesin dispersion on the substrate fiber surface, a heat-fusible fluororesin powder layer is provided on the substrate fiber surface, and then the higher of the melting temperatures of the fluororesin or the heat-fusible fluororesin. A fluorinated resin laminate obtained by heating and sintering to a temperature equal to or higher than the melting temperature and fusing the powder of the fusible fluororesin powder layer to each other is provided on the outer peripheral surface of the fluorinated resin product. After the resin powder layer is brought into close contact with the surface provided with the resin powder layer, heating is performed to integrate the fluororesin product and the fluororesin laminate, and then a reinforcing synthetic resin material is adhered to the surface of the integrated product. A reinforced fluororesin product characterized by the following: 7. 7. The reinforced fluororesin product according to claim 6, wherein the fluororesin product is a fluororesin bottle or a square tank.
JP8184766A 1996-07-15 1996-07-15 Fluororesin laminate Expired - Lifetime JP2746568B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8184766A JP2746568B2 (en) 1996-07-15 1996-07-15 Fluororesin laminate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8184766A JP2746568B2 (en) 1996-07-15 1996-07-15 Fluororesin laminate

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP62177398A Division JP2577389B2 (en) 1987-07-16 1987-07-16 How to use fluororesin laminate

Publications (2)

Publication Number Publication Date
JPH08323281A JPH08323281A (en) 1996-12-10
JP2746568B2 true JP2746568B2 (en) 1998-05-06

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Family Applications (1)

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JP8184766A Expired - Lifetime JP2746568B2 (en) 1996-07-15 1996-07-15 Fluororesin laminate

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Country Link
JP (1) JP2746568B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4465841B2 (en) * 2000-09-21 2010-05-26 富士電機ホールディングス株式会社 Hazardous gas treatment sheet and manufacturing method thereof
JP4723821B2 (en) * 2003-06-13 2011-07-13 株式会社フジコー Non-stick felt material and its manufacturing method
JP4521364B2 (en) * 2006-02-17 2010-08-11 ダイキン工業株式会社 Incombustible lighting cover

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5677142A (en) * 1979-11-28 1981-06-25 Nihon Valqua Kogyo Kk Method of coating metallic surface with fluorine resin
JPS6287329A (en) * 1985-10-15 1987-04-21 Matsushita Electric Works Ltd Manufacture of electrical laminated sheet
JPS62140843A (en) * 1985-12-14 1987-06-24 タキロン株式会社 Manufacture of vinylidene fluoride resin composite board

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