JPS6220272Y2 - - Google Patents
Info
- Publication number
- JPS6220272Y2 JPS6220272Y2 JP6144482U JP6144482U JPS6220272Y2 JP S6220272 Y2 JPS6220272 Y2 JP S6220272Y2 JP 6144482 U JP6144482 U JP 6144482U JP 6144482 U JP6144482 U JP 6144482U JP S6220272 Y2 JPS6220272 Y2 JP S6220272Y2
- Authority
- JP
- Japan
- Prior art keywords
- tetrafluoroethylene
- sheet
- surface smoothness
- weight
- copolymer
- 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
Links
- 229920001577 copolymer Polymers 0.000 claims description 15
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 13
- 239000002985 plastic film Substances 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229920005672 polyolefin resin Polymers 0.000 claims description 8
- 239000012778 molding material Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 description 11
- -1 polypropylene Polymers 0.000 description 11
- 239000004698 Polyethylene Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- PYVHTIWHNXTVPF-UHFFFAOYSA-N F.F.F.F.C=C Chemical compound F.F.F.F.C=C PYVHTIWHNXTVPF-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
本考案はカツト磁気録音テープ、VTRテー
プ、磁気デスク、フロツピーデスク等ケースに内
蔵され、回転するテープあるいはデスクとケース
間に介在させるクツシヨン性、導電性を有する滑
りシートに有用である他、摺動部のスリツプシー
トなどに使うと効果的である表面滑性及びクツシ
ヨン性を有するシートに関する。[Detailed description of the invention] This invention is a rotating tape that is built into the case of cut magnetic recording tape, VTR tape, magnetic desk, floppy desk, etc., or a sliding sheet with cushioning properties and conductivity that is interposed between the desk and the case. The present invention relates to a sheet having surface smoothness and cushioning properties that is useful for use in slip sheets for sliding parts, etc.
表面滑性及び導電性に加えて、クツシヨン、及
び弾力性が要求される用途用の材料としては４ふ
つ化エチレン樹脂にカーボンをブレンドしたもの
をシート状に成形し発泡させたものがあるが、表
面滑性はあるが、表面が発泡しているため導電
性、耐摩耗性が悪い上、４ふつ化エチレン樹脂を
用いているため非常に高価である。 Materials for cushioning and applications that require elasticity in addition to surface smoothness and conductivity include sheets made of tetrafluoroethylene resin blended with carbon and then foamed. Although it has surface smoothness, it has poor conductivity and wear resistance due to the foamed surface, and is very expensive because it uses tetrafluoroethylene resin.
更に上記用途用の材料としてポリプロピレン、
ポリエチレン、ポリウレタン、ポリスチロールな
どの樹脂にカーボンをブレンドしたものをシート
状に成形し発泡させたものもあるがそれらのシー
トは安価でクツシヨン性に富むが、表面滑性、耐
摩耗性及び導電性（空間が多いので通電を阻害す
る）が乏しい。 Furthermore, polypropylene is used as a material for the above applications.
Some sheets are made by blending carbon with resins such as polyethylene, polyurethane, and polystyrene, and then forming them into sheets and foaming them.These sheets are inexpensive and have good cushioning properties, but they have poor surface smoothness, abrasion resistance, and electrical conductivity. (There is a lot of space, which obstructs the conduction of electricity).
本考案者は叙上の欠点を解消した表面滑性及び
クツシヨン性を有するシートを開発すべく研究の
結果、発泡プラスチツクシートの片面もしくは両
面にポリオレフイン系樹脂にカーボンブラツク２
〜30重量％、４フツ化エチレン重合物もしくは４
フツ化エチレン−６フツ化プロピレン共重合物も
しくは４フツ化エチレン重合物と４フツ化エチレ
ン−６フツ化プロピレン共重合物の混合物２〜50
重量％を混合した成形材料を成形してなる表面滑
性を有する表層フイルムを積層することにより、
表面滑性、耐摩耗性、及び導電性に加えて、クツ
シヨン性を備えた材料を得ることができ、この材
料は摺動部のスリツプシートなどとして用いると
回転体の振動、ゆれが吸収され、摺動が更に円滑
化することを見い出し、かかる知見にもとづいて
本考案を完成したものである。 As a result of research to develop a sheet with surface smoothness and cushioning properties that eliminates the above-mentioned drawbacks, the inventor of the present invention found that carbon black 2 was added to polyolefin resin on one or both sides of a foamed plastic sheet.
~30% by weight, tetrafluoroethylene polymer or 4
Ethylene fluoride-propylene hexafluoride copolymer or mixture of ethylene tetrafluoride and propylene tetrafluoride-hexafluoride copolymer 2-50
By laminating a surface film with surface smoothness formed by molding a molding material mixed with % by weight,
In addition to surface smoothness, abrasion resistance, and conductivity, it is possible to obtain a material that has cushioning properties. When used as a slip sheet for sliding parts, this material absorbs the vibrations and wobbling of rotating bodies. It was discovered that the sliding motion was made even smoother, and the present invention was completed based on this knowledge.
即ち、本考案の要旨は発泡プラスチツクシート
の片面もしくは両面にポリオレフイン系樹脂にカ
ーボンブラツク２〜30重量％、４フツ化エチレン
重合物もしくは４フツ化エチレン−６フツ化プロ
ピレン共重合物もしくは４フツ化エチレン重合物
と４フツ化エチレン−６フツ化プロピレン共重合
物の混合物２〜50重量％を混合した成形材料を成
形してなる表面滑性を有する表層フイルムが積層
されていることを特徴とする表面滑性及びクツシ
ヨン性を有するシートである。 That is, the gist of the present invention is to coat a polyolefin resin with 2 to 30% by weight of carbon black, a tetrafluoroethylene polymer, a tetrafluoroethylene-hexafluoropropylene copolymer, or a tetrafluoroethylene copolymer on one or both sides of a foamed plastic sheet. It is characterized by laminated with a surface film having surface smoothness formed by molding a molding material containing 2 to 50% by weight of a mixture of ethylene polymer and tetrafluoroethylene-hexafluoropropylene copolymer. This sheet has surface smoothness and cushioning properties.
以下、本考案につき図面を参照しながら詳細に
説明する。 Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図は本考案の第１実施態様３を示す。 FIG. 1 shows a first embodiment 3 of the present invention.
発泡プラスチツクシート１の片面にポリオレフ
イン系樹脂にカーボンブラツク２〜30重量％、４
フツ化エチレン重合物もしくは４フツ化エチレン
−６フツ化プロピレン共重合物もしくは４フツ化
エチレン重合物と４フツ化エチレン−６フツ化プ
ロピレン共重合物の混合物２〜50重量％を混合し
た成形材料を成形してなる表面滑性を有する表層
フイルム２が貼合されて本考案のシート３が構成
されている。 2-30% by weight of carbon black on polyolefin resin on one side of foamed plastic sheet 1, 4
Molding material mixed with 2 to 50% by weight of a fluorinated ethylene polymer, a tetrafluorinated ethylene-hexafluorinated propylene copolymer, or a mixture of a tetrafluorinated ethylene polymer and a tetrafluorinated ethylene-hexafluorinated propylene copolymer The sheet 3 of the present invention is constructed by laminating a surface layer film 2 having surface smoothness formed by molding.
而して本考案において、表層フイルム２の成形
材料であるポリオレフイン系樹脂として、押出成
形用のポリエチレンで、メルトインデツクスが、
0.01〜20.0ｇ／10分程度で好ましくは0.03〜10.0
ｇ／10分、密度が、0.940以上の高密度ポリエチ
レンが良く、この材料は、適度な剛度、耐衝撃性
を有し、かつ、従来の超高分子量ポリエチレンや
４フツ化エチレン重合物に比べ、加工適性にすぐ
れ、汎用のポリエチレンフイルムを成膜する時に
使用するＴダイ押出機やインフレーシヨン押出機
を利用して成膜できる。またポリエチレンの代り
にポリオレフイン系樹脂としてエチレン−酢酸ビ
ニル共重合体、エチレン−エチルアクリレート共
重合体、ポリプロピレン、ポリエチレンに種々の
添加剤、たとえば酸化防止剤、滑剤、ブロツキン
グ防止剤、帯電防止剤、充填剤等を含む樹脂、ア
イオノマー樹脂等の押出し成型可能な樹脂を利用
することもできる。 Therefore, in the present invention, the polyolefin resin that is the molding material for the surface film 2 is polyethylene for extrusion molding, and the melt index is
About 0.01-20.0g/10 minutes, preferably 0.03-10.0
g/10 min, high-density polyethylene with a density of 0.940 or more is good.This material has appropriate stiffness and impact resistance, and has a higher It has excellent processability and can be formed using a T-die extruder or inflation extruder that is used to form general-purpose polyethylene films. In addition, as a polyolefin resin instead of polyethylene, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, polypropylene, polyethylene and various additives, such as antioxidants, lubricants, antiblocking agents, antistatic agents, fillers, etc. It is also possible to use extrusion moldable resins such as resins containing agents and ionomer resins.
次にポリオレフイン系樹脂に混合するカーボン
ブラツクとしては、導電性カーボンブラツクの粉
末、すなわち粒子径が10〜60nm、吸油量が100〜
400c.c.／100ｇで、アセチレンの熱分解法又は、重
油の不完全燃焼法により生産され、ケツチエンブ
ラツク、アセチレンブラツク、フアーネスブラツ
ク等の名称で市販されているもの、また、４フツ
化エチレン重合物もしくは４フツ化エチレン−６
フツ化プロピレン共重合物としては、添加剤用の
粉末を用い、好ましくは粒径が10μ以下のものを
用いる。 Next, the carbon black to be mixed with the polyolefin resin is conductive carbon black powder with a particle size of 10 to 60 nm and an oil absorption of 100 to 60 nm.
400c.c./100g, produced by the thermal decomposition method of acetylene or the incomplete combustion method of heavy oil, and commercially available under the names of ketchen black, acetylene black, furnace black, etc. Ethylene polymer or tetrafluoroethylene-6
As the fluorinated propylene copolymer, a powder for additives is used, preferably one having a particle size of 10 μm or less.
次にカーボンブラツクと４フツ化エチレン重合
物もしくは４フツ化エチレン−６フツ化プロピレ
ン共重合物の組成率は、カーボンブラツクが２〜
30重量％で、シートに成形した場合に表面抵抗値
が102〜1012Ωの範囲に入ることが好ましく、２
％以下だと1012Ω以上となり、帯電防止性能が劣
り30％以上だとポリエチレンの高温時の流動性が
低下し、成膜加工が困難となる。 Next, the composition ratio of carbon black and tetrafluoroethylene polymer or tetrafluoroethylene-hexafluoropropylene copolymer is
It is preferable that the surface resistance value be in the range of 10 2 to 10 12 Ω when formed into a sheet at 30% by weight;
If it is less than 30%, the resistance will be 10 12 Ω or more, and the antistatic performance will be poor, and if it is more than 30%, the fluidity of polyethylene at high temperatures will decrease, making film formation difficult.
また、４フツ化エチレン重合物及び／又は４フ
ツ化エチレン−６フツ化プロピレン共重合物の添
加量は２〜50重量％で、シートに成形した場合に
摩擦係数が0.2以下になることが好ましい。 Further, the amount of the tetrafluoroethylene polymer and/or the tetrafluoroethylene-hexafluoropropylene copolymer added is 2 to 50% by weight, and when formed into a sheet, it is preferable that the coefficient of friction is 0.2 or less. .
表層フイルムを成膜するには、例としてあらか
じめ所定組成のポリエチレン・カーボンブラツ
ク・４フツ化エチレン重合物及び／又は４フツ化
エチレン−６フツ化プロピレン共重合物を混合
し、パンパリ−ミキサーや三本ロールミキサー等
で溶融混練し、ペレタイザーでペレツト状にした
後、Ｔダイ押出機やインフレーシヨン押出機にて
成膜する方法がある。 To form the surface film, for example, polyethylene, carbon black, tetrafluoroethylene polymer and/or tetrafluoroethylene-hexafluoropropylene copolymer of a predetermined composition are mixed in advance, and There is a method in which the mixture is melt-kneaded using a roll mixer or the like, made into pellets using a pelletizer, and then formed into a film using a T-die extruder or an inflation extruder.
次に表層フイルム２を貼合せる発泡プラスチツ
クシート１はクツシヨン効果と支持体の２つの役
目を果すもので、この材質として発泡ポリプロピ
レン、発泡ポリエチレン、発泡ポリウレタン、発
泡ポリスチレンなどが適当であり、発泡状態、発
泡倍率等に特に指定はなく、クツシヨン性、弾力
性、腰等最終製品に要求されるタイプによつて決
めればよい。 Next, the foamed plastic sheet 1 to which the surface film 2 is laminated has the dual roles of a cushioning effect and a support. Suitable materials for this include foamed polypropylene, foamed polyethylene, foamed polyurethane, and foamed polystyrene. There is no particular specification for the foaming ratio, etc., and it may be determined depending on the type required for the final product, such as cushioning properties, elasticity, elasticity, etc.
厚さも特に指定はなく、用途によつて決めるこ
とになるが、一般的に0.02〜10ｍ／ｍが適当であ
る。 The thickness is not particularly specified and is determined depending on the application, but generally 0.02 to 10 m/m is appropriate.
又発泡プラスチツクシートとしてカーボンを練
込んだ材料からなる発泡プラスチツクシートを使
用しても良い。 Further, a foamed plastic sheet made of a material into which carbon is kneaded may be used as the foamed plastic sheet.
第２図は本考案の第２実施態様４を示す。この
実施態様４は表層フイルム２ａ，２ｂが発泡プラ
スチツクシート１の両面に設けられている点が第
１実施態様と異なる。 FIG. 2 shows a second embodiment 4 of the present invention. This embodiment 4 differs from the first embodiment in that surface films 2a and 2b are provided on both sides of the foamed plastic sheet 1.
以上詳記した通り本考案の表面滑性及びクツシ
ヨン性を有するシートは発泡プラスチツクシート
の片面もしくは両面にポリオレフイン系樹脂にカ
ーボンブラツク２〜30重量％、４フツ化エチレン
重合物もしくは４フツ化エチレン−６フツ化プロ
ピレン共重合物もしくは４フツ化エチレン重合物
と４フツ化エチレン−６フツ化プロピレン共重合
物の混合物２〜50重量％を混合した成形材料を成
形してなる表面滑性を有する表層フイルムを積層
してなるものであるので摩擦係数が小さく、表面
滑性に優れ、且つ導電性を有していてこすられて
も帯電しにくく、ごみを吸引、吸着せず、且つク
ツシヨン性、弾力性を有し、摺動部のスリツプシ
ートなどとして用いると回転体の振動、ゆれを吸
収し、摺動を更に円滑化する機能を果すものであ
る。 As detailed above, the sheet having surface smoothness and cushioning properties of the present invention is a foamed plastic sheet with 2 to 30% by weight of carbon black added to polyolefin resin on one or both sides, and tetrafluoroethylene polymer or tetrafluoroethylene polymer. A surface layer having surface smoothness formed by molding a molding material containing 2 to 50% by weight of a mixture of a hexafluoropropylene copolymer or a tetrafluoroethylene polymer and a tetrafluoroethylene-hexafluoropropylene copolymer. Since it is made of laminated films, it has a low coefficient of friction, excellent surface smoothness, and is conductive, so it is not easily charged even when rubbed, does not attract or attract dust, and has cushioning properties and elasticity. When used as a slip sheet for sliding parts, it absorbs the vibrations and wobbles of rotating bodies and further smoothes sliding motion.
第１図及び第２図は本考案の表面滑性及びクツ
シヨン性を有するシートの第１及び第２実施態様
を示す断面図である。
１……発泡プラスチツクシート、２，２ａ，２
ｂ……表層フイルム。
1 and 2 are cross-sectional views showing first and second embodiments of the sheet having surface smoothness and cushioning properties of the present invention. 1... Foamed plastic sheet, 2, 2a, 2
b...Surface film.
Claims (1)
ポリオレフイン系樹脂にカーボンブラツク２〜30
重量％、４フツ化エチレン重合物もしくは４フツ
化エチレン−６フツ化プロピレン共重合物もしく
は４フツ化エチレン重合物と４フツ化エチレン−
６フツ化プロピレン共重合物の混合物２〜50重量
％を混合した成形材料を成形してなる表面滑性を
有する表面フイルムが積層されていることを特徴
とする表面滑性及びクツシヨン性を有するシー
ト。 Carbon black 2 to 30% polyolefin resin on one or both sides of the foamed plastic sheet.
Weight %, tetrafluoroethylene polymer or tetrafluoroethylene-hexafluoropropylene copolymer or tetrafluoroethylene polymer and tetrafluoroethylene
A sheet having surface smoothness and cushioning properties, characterized in that it is laminated with a surface film having surface smoothness formed by molding a molding material containing 2 to 50% by weight of a mixture of hexafluorinated propylene copolymer. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6144482U JPS58164740U (en) | 1982-04-27 | 1982-04-27 | Sheet with surface smoothness and cushioning properties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6144482U JPS58164740U (en) | 1982-04-27 | 1982-04-27 | Sheet with surface smoothness and cushioning properties |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58164740U JPS58164740U (en) | 1983-11-02 |
| JPS6220272Y2 true JPS6220272Y2 (en) | 1987-05-23 |
Family
ID=30071643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6144482U Granted JPS58164740U (en) | 1982-04-27 | 1982-04-27 | Sheet with surface smoothness and cushioning properties |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58164740U (en) |
-
1982
- 1982-04-27 JP JP6144482U patent/JPS58164740U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58164740U (en) | 1983-11-02 |
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