JPS62189132A - Manufacture of cylindrical article coated with fluorine polymer by fusion - Google Patents
Manufacture of cylindrical article coated with fluorine polymer by fusionInfo
- Publication number
- JPS62189132A JPS62189132A JP61031568A JP3156886A JPS62189132A JP S62189132 A JPS62189132 A JP S62189132A JP 61031568 A JP61031568 A JP 61031568A JP 3156886 A JP3156886 A JP 3156886A JP S62189132 A JPS62189132 A JP S62189132A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical article
- intermediate layer
- fluoropolymer
- polymer
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000642 polymer Polymers 0.000 title claims abstract description 21
- 230000004927 fusion Effects 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title abstract description 9
- 229910052731 fluorine Inorganic materials 0.000 title abstract description 9
- 239000011737 fluorine Substances 0.000 title abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000007765 extrusion coating Methods 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims abstract description 8
- 230000001070 adhesive effect Effects 0.000 claims abstract description 8
- 239000004811 fluoropolymer Substances 0.000 claims description 34
- 229920002313 fluoropolymer Polymers 0.000 claims description 34
- 239000010410 layer Substances 0.000 abstract description 47
- 239000011247 coating layer Substances 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 239000004695 Polyether sulfone Substances 0.000 abstract description 4
- 229920006393 polyether sulfone Polymers 0.000 abstract description 4
- 229920001577 copolymer Polymers 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 abstract description 2
- 229920006122 polyamide resin Polymers 0.000 abstract description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 abstract 1
- 230000001815 facial effect Effects 0.000 abstract 1
- 150000002221 fluorine Chemical class 0.000 abstract 1
- 238000011282 treatment Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920005575 poly(amic acid) Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
- B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die
- B29C48/0016—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die using a plurality of extrusion dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は金属ロール等の円柱状物品に熱流動性を有する
フッ素系重合体を融着により被覆せしめる方法に関する
ものであり、かかる方法を提供することにより、もって
当該産業上の利用に供さんとするものである。Detailed Description of the Invention <Industrial Application Field> The present invention relates to a method of coating a cylindrical article such as a metal roll with a thermofluid fluoropolymer by fusion bonding, and provides such a method. By doing so, it will be made available for the relevant industrial use.
〈従来の技術〉
フッ素系重合体は耐熱性、非粘着性、耐薬品性等、多く
の優れた特質を有することはよく知られており、こうし
た特性を利用して多くの用途が開拓されている。例えば
金属ロール等の円柱状物品にフッ素系重合体の薄肉チュ
ーブ等を被覆せしめ、これら円柱状物品の性質の改善を
図っているが、これらフッ素系重合体は金属ロールへの
接着が困難であり、従来より、金属ナトリウム等による
処理で、接着性を向」ニさせるなど、各種の工夫がなさ
れているが、これでは十分とは云い難く、現在ではフッ
ソ樹脂粉体やディスパージョン塗料を塗布し、ついで焼
成するコーティング方法が一般的に利用される傾向にあ
る。しかし乍ら、これらの方法によるも、粉体塗料では
静電吹付けの際の塗着率が低いため高価となりやすく、
ディスバージボン塗装でも厚い被覆層を得るためには重
ね塗りを要する等問題点がある上に、仕上り面の表面精
度が悪く、研磨を要する場合もあるなど、用途によって
は利用に適さないことも多かった。<Prior art> It is well known that fluoropolymers have many excellent properties such as heat resistance, non-stick properties, and chemical resistance, and many uses have been developed by taking advantage of these properties. There is. For example, attempts have been made to improve the properties of cylindrical articles such as metal rolls by coating them with thin-walled fluoropolymer tubes, but these fluoropolymers are difficult to adhere to metal rolls. In the past, various efforts have been made to improve adhesion, such as treatment with metallic sodium, etc., but this has not been sufficient, and currently, fluorine resin powder or dispersion paint is applied. , followed by firing coating methods are becoming more commonly used. However, even with these methods, powder coatings tend to be expensive due to the low coverage rate during electrostatic spraying.
Even with Disvergebon painting, there are problems such as the need for multiple coats to obtain a thick coating layer, and the surface accuracy of the finished surface is poor and polishing may be required, so it may not be suitable for use depending on the application. There were many.
〈問題点を解決するための手段〉
本発明は以上のような問題点を解決すべくなされたもの
であり、その特徴とするところはフッ素系重合体の融着
被覆された円柱状物品の製造法において、熱流動性を有
するフッ素系重合体を該フッ素系重合体と円柱状物品の
双方に接着力を有する中間層を介して円柱状物品に融着
せしめた点にあり、この際好ましくは熱流動性を有する
フッ素系重合体をクロスヘッドを有する押出機を用いて
、予熱された中間層を有する円柱状物品に押出被覆によ
り融着せしめてなり、更に好ましくは円柱状物品に中間
層をコートし、しかる後前記中間層のコートされた円柱
状物品を、該中間層に主として用いる重合体の軟化点以
上の温度に加熱して、フッ素系重合体を押出被覆により
融着せしめてなるものである。<Means for Solving the Problems> The present invention has been made to solve the above problems, and is characterized by the production of cylindrical articles coated with a fluoropolymer by fusion coating. In the method, a fluoropolymer having thermofluidity is fused to a cylindrical article through an intermediate layer having adhesive strength to both the fluoropolymer and the cylindrical article, and in this case, preferably A fluoropolymer having thermofluidity is fused by extrusion coating to a cylindrical article having a preheated intermediate layer using an extruder having a crosshead, and more preferably, the intermediate layer is bonded to the cylindrical article. coated, and then heated to a temperature higher than the softening point of the polymer mainly used for the intermediate layer to fuse the fluoropolymer by extrusion coating. It is.
次に本発明における問題点を解決するための手段を更に
詳細の述べることにする。Next, the means for solving the problems in the present invention will be described in more detail.
本発明における熱流動性を有するフッ素系重合体とは、
溶融押出しの可能なフッ素系樹脂のことであり、例えば
テトラフルオロエチレン−パーフルオロアルキルビニル
エーテル共重合体（以下ｒＰＦＡＪ という）、テトラ
フルオロエチレン−へ体等をあげることができ、特に制
限はない。The fluoropolymer having thermofluidity in the present invention is
It refers to a fluororesin that can be melt extruded, and includes, for example, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (hereinafter referred to as rPFAJ), tetrafluoroethylene hexafluoride, etc., and is not particularly limited.
円柱状物品とは円柱形状をした適宜の物品であれば十分
であるが、通常は金属ロール、ゴムロール、セラミック
ロール等を例示できる。この際、金属ロールとしてはス
ランレスロール、アルミニウムもしくはその合金性のロ
ール等を例示でき、特に制限はない。The cylindrical article may be any appropriate cylindrical article, and typically includes metal rolls, rubber rolls, ceramic rolls, and the like. At this time, examples of the metal roll include a slanless roll, a roll made of aluminum or its alloy, and there are no particular limitations.
中間層とは熱流動性を有するフッ素系重合体及び円柱状
物品の双方に接着力を有するコーティング層、プライマ
ー処理層、その他適宜の接着性樹脂層や薬品処理層等を
例示でき、特に制限はない。好ましい中間層としてはポ
リエーテルサルホン樹脂、ポリフェニレンサルファイド
樹脂、ポリアミド系樹脂、その他適宜の重合体からなる
コーティング層をあげることができ、これらは押出被覆
によりコートすることが、更に好ましい例としてあげる
ことができる。勿論、ここに使用する重合体の他にも各
種のものが使用可能であるし、このような重合体に、更
に前記した熱流動性を有するフッ素系重合体を適宜量添
加し、接着力を増強させることも行なわれている。ここ
で云う接着力とは熱融着であっても、化学的接着であっ
ても物理的密着、その他の接着であっても特に制限はな
い。このように、中間層と円柱状物品の接着については
上記の如くあらゆる接着の態様が可能であり、その接着
力についてもある程度の接着性が認められるならばそれ
で十分で特に制限はない。例えば円柱状物品が直接処理
を施されて、その表面に層状の処理形成物を現出した態
様も、本発明では接着の範囲とみている。一方、中間層
とフッ素系重合体との接着については、融着されねばな
らず、こうしないと好ましい被覆が得られない。Examples of the intermediate layer include a thermofluid fluoropolymer, a coating layer that has adhesive strength to both the cylindrical article, a primer treatment layer, and other appropriate adhesive resin layers and chemical treatment layers, and there are no particular restrictions. do not have. Preferred intermediate layers include coating layers made of polyether sulfone resin, polyphenylene sulfide resin, polyamide resin, and other appropriate polymers, and a more preferred example of these is coating by extrusion coating. I can do it. Of course, various other polymers can be used in addition to the polymers used here, and an appropriate amount of the above-described fluoropolymer having thermofluidity can be added to such a polymer to increase adhesive strength. It is also being strengthened. The adhesive strength referred to herein is not particularly limited, and may be thermal fusion, chemical adhesion, physical adhesion, or other adhesion. As described above, all types of adhesion are possible for adhesion between the intermediate layer and the cylindrical article as described above, and there is no particular restriction on the adhesion force as long as a certain degree of adhesion is observed. For example, an aspect in which a cylindrical article is directly treated and a layered treated product appears on its surface is also considered to be within the scope of adhesion in the present invention. On the other hand, the adhesion between the intermediate layer and the fluoropolymer must be fused, otherwise a desirable coating cannot be obtained.
中間層として前記に例示されたプライマー処理層とは適
宜の処理剤を用いて、通常行なわれるプライマー処理の
ように、円柱状物品表面を適宜に下塗りし、処理層を形
成すればよく、特に制限はない。この他、中間層として
はアミノシラン処理、ブラスト処理等も可能であり、更
に円柱状物品が例えばアルミニウム及びその合金の場合
塩酸エツチング、電気化学エツチングなどの処理等をあ
げることもできる。このように本発明の中間層とは、中
間層として明らかな一つの層を形成するものから、円柱
状物品の表面が薬品処理されて、層状の処理形成物とな
る形態のものまで例示でき、特に制限はないことは勿論
である。The primer treatment layer exemplified above as an intermediate layer may be formed by appropriately undercoating the surface of a cylindrical article using an appropriate treatment agent, as in the usual primer treatment, and there are no particular restrictions. There isn't. In addition, aminosilane treatment, blasting treatment, etc. can be applied to the intermediate layer, and further treatments such as hydrochloric acid etching, electrochemical etching, etc. can also be mentioned when the cylindrical article is, for example, aluminum or its alloy. In this way, the intermediate layer of the present invention can be exemplified from one that forms an obvious layer as an intermediate layer to one that forms a layered treated product by treating the surface of a cylindrical article with a chemical. Of course, there are no particular restrictions.
本発明における融着とは、円柱状物品に熱流動性を有す
るフッ素系重合体を中間層を介して融かして接着せしめ
るもので、例えばフッ素系重合体と中間層が融着し、中
間層と円柱状物品が融着でなく、単に接着している場合
も、本発明では「円柱状物品とフッ素系重合体とが中間
層を介して融着する」と云っており、このように中間層
は円柱状物品と必ずしも融着していなくても、いわゆる
接着をしていれば、本発明ではフッ素系重合体と円柱状
物品とは融着されていると云うのである。Fusion in the present invention refers to melting and bonding a fluoropolymer having thermal fluidity to a cylindrical article via an intermediate layer. For example, the fluoropolymer and the intermediate layer are fused and Even when the layer and the cylindrical article are not fused but simply adhered, the present invention says that ``the cylindrical article and the fluoropolymer are fused together via the intermediate layer.'' Even if the intermediate layer is not necessarily fused to the cylindrical article, as long as there is so-called adhesion, the fluoropolymer and the cylindrical article are said to be fused together in the present invention.
更に例えば表面処理のように円柱状物品に層状の処理形
成物が作成された場合もフッ素系重合体が前記処理層に
融着している以上は本発明の範囲であることは明らかで
ある。Furthermore, it is clear that even when a layered treated product is created on a cylindrical article, such as in the case of surface treatment, as long as the fluoropolymer is fused to the treated layer, it is within the scope of the present invention.
本発明は好ましくはフッ素系重合体を、中間層を介して
円柱状物品に押出被覆することが望ましく、こうするこ
とにより工程の短縮化が図られるが、これは好ましい実
施態様であり、特に制限を受けるものでなく、この際押
出被覆についてはクロスヘッドを有する押出機を用いて
行なうのが好ましく、例えば後述するの如き方法を例示
できるが、このことも特に制限がないことは勿論である
。In the present invention, it is preferable to extrusion coat the fluoropolymer onto a cylindrical article via an intermediate layer, which shortens the process, but this is a preferred embodiment, and there are no particular limitations. In this case, the extrusion coating is preferably carried out using an extruder having a crosshead, for example, the method described below can be exemplified, but it goes without saying that there is no particular restriction on this.
フッ素系重合体を円柱状物質に融着せしめるには、中間
層を有する円柱状物質を予じめフッ素系重合体が融着可
能な程度に予熱しておけばよい。In order to fuse the fluoropolymer to the cylindrical material, the cylindrical material having the intermediate layer may be preheated to such an extent that the fluoropolymer can be fused.
こうした予熱については中間層として前記に例示したよ
うな各種の重合体、重合体の混合物等のコーティング層
を用いる場合は、主として用いる重合体の軟化点以上の
温度に加熱して、フッ素系重合体を融着せしめるとよく
、この際、これら重合体を単独で用いる場合は、該単独
で用いる重合なく、予熱しなくてもよい場合もあるが、
通常フッ素系重合体は予熱しないとなかなか融着しにく
い場合が多い。Regarding such preheating, when using a coating layer made of various polymers or mixtures of polymers as exemplified above as the intermediate layer, heating to a temperature higher than the softening point of the polymer mainly used is necessary. In this case, when these polymers are used alone, they may not be polymerized and preheating may not be necessary.
Normally, fluorine-based polymers are often difficult to fuse without preheating.
図面は本発明に用いる好ましい製造装置の１例であり、
（１）は金属ロール等の円柱状物品、（２）はクロスヘ
ッド部（３）を有する溶融押出機の要部で、（Ａ）部は
中間層の押出被覆部、（Ｂ）部はフッ素系重合体の押出
被覆部、（０は送りロール、（５）は予熱部であり、（
８）は中間層の形成された円柱状物品、（７）はフッ素
系重合体が融着された本発明に係る円柱状物品である０
本発明は、このような装置を用いることによリ一工程で
連続して製造することが可能であり、極めて便利である
。The drawing is an example of a preferred manufacturing apparatus used in the present invention,
(1) is a cylindrical article such as a metal roll, (2) is the main part of the melt extruder having a crosshead part (3), part (A) is the extrusion coating part of the intermediate layer, and part (B) is the fluorine system polymer extrusion coating part, (0 is the feed roll, (5) is the preheating part, (
8) is a cylindrical article in which an intermediate layer is formed, and (7) is a cylindrical article according to the present invention in which a fluoropolymer is fused.
The present invention is extremely convenient because it can be manufactured continuously in one step by using such an apparatus.
以上は、本発明の好ましい具体例や、各種の態様を述べ
たままであり、本発明はかかる記述内容に制限を受ける
ものでないことは勿論である。The above is just a description of preferred specific examples and various aspects of the present invention, and it goes without saying that the present invention is not limited to such descriptions.
〈実施例１）
図例の如き装置を用い、先ず（Ａ）部におけるクロスヘ
ッド（２）を有する押出機を用いて、ポリエーテルサル
ホン樹脂を押し出しながら一方向からアルミ製の金属ロ
ール（１）を送り、ロール表面に押出被覆によりポリエ
ーテルサルホン樹脂の薄いコーティング層からなる中間
層を形成せしめ、中間層を有するロール（６）を得た。<Example 1> Using an apparatus as shown in the figure, first, an aluminum metal roll (1 ), and an intermediate layer consisting of a thin coating layer of polyethersulfone resin was formed on the roll surface by extrusion coating, to obtain a roll (6) having an intermediate layer.
次いで（Ｂ）部におけるクロスヘッド押出機を用いクロ
スヘッド部（２）で、フッ素系重合体ｒＰＦＡＪを押出
し、中間層を有するロール（６）に押出被覆せしめた。Next, the fluoropolymer rPFAJ was extruded in the crosshead section (2) using the crosshead extruder in section (B), and extrusion coated on the roll (6) having the intermediate layer.
この際、中間層を有するロール（６）は予熱部（５）に
おいてロール表面が２８０℃になるように加熱されてお
り、これによりｒＰＦＡＪがアルミ性ロール（１）に中
間層を介して強固に融着されたものであった。At this time, the roll (6) having the intermediate layer is heated in the preheating section (5) so that the roll surface reaches 280°C, and as a result, rPFAJ is firmly attached to the aluminum roll (1) through the intermediate layer. It was fused.
このようにして得られたロール（７）の表面は平滑で研
磨の必要のない優れた精度を有するものであり、かかる
ロールにおいては、ロールと中間層とが融着され、更に
中間層とフッ素系重合体被覆面も融着されているもので
あった。ちなみに、中間層に用いるポリエーテルサルホ
ン樹脂の軟化点は２２５℃ＰＦＡの融点は３１０℃であ
る。The surface of the roll (7) obtained in this way is smooth and has excellent precision without the need for polishing, and in such a roll, the roll and the intermediate layer are fused together, and the intermediate layer and the fluorine The surface covered with the polymer was also fused. Incidentally, the softening point of the polyethersulfone resin used for the intermediate layer is 225°C, and the melting point of PFA is 310°C.
〈実施例２〉
アルミ製ロールの表面をサンドブラスト処理し、ついで
テトラフルオロエチレンーパープルオロアルキルビニル
エーテルコボリマーコロイド粒子とポリアミド酸とを含
む水性分散液をスプレー塗布して３７０℃で焼成し、プ
ライマー処理層とすることにより、中間層を形成した。<Example 2> The surface of an aluminum roll was sandblasted, and then an aqueous dispersion containing copolymer copolymer particles of tetrafluoroethylene-purpleoloalkyl vinyl ether and polyamic acid was spray-coated, baked at 370°C, and primed. By forming a layer, an intermediate layer was formed.
こうして中間層はロール表面と強固に接着していた。In this way, the intermediate layer was firmly adhered to the roll surface.
こうして中間層の形成されたロール（６）を、図例の（
Ａ）部を除いた装置を用いて２８０℃で予熱した後、ク
ロスヘッド部（２）を有する押山機により、実施例（１
）と同様のフッ素系重合体を押出被覆せしめて、中間層
に融着せしめ、ロールに中間層を介してフッ素系重合体
が融着されたロールを得た。The roll (6) on which the intermediate layer has been formed in this way is then rolled (
After preheating at 280°C using the equipment except for part A), Example (1)
) was extrusion coated with the same fluoropolymer and fused to the intermediate layer to obtain a roll in which the fluoropolymer was fused to the roll via the intermediate layer.
〈発明の効果〉
本発明は以上の通りであり、本発明によるとロール等の
円柱状物品にフッ素系重合体を融着被覆されており、従
来のような不完全な被覆であったり、重ね塗りを要する
必要もない等その効果は格別のものがある。しかも、融
着により被覆されているのでその接着力は優れたもので
ある上に、例えば図例の如き方法によれば一工程のもと
に融着被覆が可能である。<Effects of the Invention> The present invention is as described above.According to the present invention, a cylindrical article such as a roll is coated with a fluoropolymer by fusion coating, and the coating is incomplete as in the past, or overlapped. Its effects are exceptional, as it does not require painting. Moreover, since the coating is performed by fusion bonding, the adhesive force is excellent, and, for example, by the method shown in the figure, fusion coating can be performed in one step.
第１図は本発明に係る好ましい製造法の １例を説明す
るための側面図である。FIG. 1 is a side view for explaining one example of a preferred manufacturing method according to the present invention.
Claims (1)
重合体と円柱状物品の双方に接着力を有する中間層を介
して円柱状物品に融着せしめたことを特徴とするフッ素
系重合体の融着被覆された円柱状物品の製造法。 ２）、熱流動性を有するフッ素系重合体を、クロスヘッ
ドを有する押出機を用いて予熱された中間層を有する円
柱状物品に押出被覆により融着せしめてなる特許請求の
範囲第１項記載のフッ素系重合体の融着被覆された円柱
状物品の製造法。 ３）、円柱状物品に中間層をコートし、しかる後前記中
間層のコートされた円柱状物品を、該中間層に主として
用いる重合体の軟化点以上の温度に予熱し、次いでフッ
素系重合体を押出被覆により融着せしめてなる特許請求
の範囲第２項記載のフッ素系重合体の融着被覆された円
柱状物品の製造法。[Scope of Claims] 1) A fluoropolymer having thermal fluidity is fused to a cylindrical article via an intermediate layer that has adhesive strength to both the fluoropolymer and the cylindrical article. A method for producing a cylindrical article coated with a fluoropolymer by fusion coating, characterized by: 2) A fluoropolymer having thermal fluidity is fused by extrusion coating to a cylindrical article having an intermediate layer that is preheated using an extruder having a crosshead. A method for producing a cylindrical article fusion-coated with a fluoropolymer. 3) Coat a cylindrical article with an intermediate layer, then preheat the cylindrical article coated with the intermediate layer to a temperature equal to or higher than the softening point of the polymer mainly used for the intermediate layer, and then apply a fluoropolymer. A method for producing a cylindrical article coated with a fluoropolymer according to claim 2, which comprises fusion-bonding the fluoropolymer by extrusion coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61031568A JPS62189132A (en) | 1986-02-15 | 1986-02-15 | Manufacture of cylindrical article coated with fluorine polymer by fusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61031568A JPS62189132A (en) | 1986-02-15 | 1986-02-15 | Manufacture of cylindrical article coated with fluorine polymer by fusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62189132A true JPS62189132A (en) | 1987-08-18 |
Family
ID=12334780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61031568A Pending JPS62189132A (en) | 1986-02-15 | 1986-02-15 | Manufacture of cylindrical article coated with fluorine polymer by fusion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62189132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02299830A (en) * | 1989-05-15 | 1990-12-12 | Nissei Denki Kk | Method of manufacturing heat roller |
| JP2004506548A (en) * | 2000-08-23 | 2004-03-04 | スリーエム イノベイティブ プロパティズ カンパニー | Method for producing multilayer product having fluororesin layer and elastomer layer |
-
1986
- 1986-02-15 JP JP61031568A patent/JPS62189132A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02299830A (en) * | 1989-05-15 | 1990-12-12 | Nissei Denki Kk | Method of manufacturing heat roller |
| JP2004506548A (en) * | 2000-08-23 | 2004-03-04 | スリーエム イノベイティブ プロパティズ カンパニー | Method for producing multilayer product having fluororesin layer and elastomer layer |
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