JP6735571B2 - ポリテトラフルオロエチレン樹脂組成物 - Google Patents
ポリテトラフルオロエチレン樹脂組成物 Download PDFInfo
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- JP6735571B2 JP6735571B2 JP2016041340A JP2016041340A JP6735571B2 JP 6735571 B2 JP6735571 B2 JP 6735571B2 JP 2016041340 A JP2016041340 A JP 2016041340A JP 2016041340 A JP2016041340 A JP 2016041340A JP 6735571 B2 JP6735571 B2 JP 6735571B2
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- polytetrafluoroethylene resin
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- coke
- resin composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K11/00—Use of ingredients of unknown constitution, e.g. undefined reaction products
- C08K11/005—Waste materials, e.g. treated or untreated sewage sludge
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/18—Monomers containing fluorine
- C08F14/26—Tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/016—Additives defined by their aspect ratio
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
- C08K3/105—Compounds containing metals of Groups 1 to 3 or Groups 11 to 13 of the Periodic system
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/54—Inorganic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
Description
67〜75体積%、好ましくは69〜72体積%の割合で用いられる。ポリテトラフルオロエチレン樹脂がこれよりも少ない割合で用いられると、ポリテトラフルオロエチレン樹脂本来の性質の発現が困難となる。
ポリテトラフルオロエチレン樹脂(三井・デュポンフロロケミカル製品テフロン<登録商標>7-J)70体積%および平均粒径が48μmのコークス(オリエンタル産業製品AT-No.5C)30体積%をヘンシェルミキサで混合し、得られた混合物を圧縮成形器を用い69MPaの成形圧に2分間保持した後、4×4×8mmの直方体状に予備成形し、次いで375℃で3時間焼成し、テストピースを作製した。
実施例1において、ポリテトラフルオロエチレン樹脂量が75体積%に、またコークス量が25体積%にそれぞれ変更されて用いられたところ、固着応力は0.18MPa(判定:○)であった。
実施例1において、ポリテトラフルオロエチレン樹脂量が80体積%に、またコークス量が20体積%にそれぞれ変更されて用いられたところ、固着応力は0.29MPa(判定:×)であった。
実施例1において、ポリテトラフルオロエチレン樹脂量が85体積%に、またコークス量が15体積%にそれぞれ変更されて用いられたところ、固着応力は0.47MPa(判定:×)であった。
実施例1において、ポリテトラフルオロエチレン樹脂量が90体積%に、またコークス量が10体積%にそれぞれ変更されて用いられたところ、固着応力は0.52MPa(判定:×)であった。
実施例1において、コークスの代わりに炭素繊維(繊維径10μm、繊維長70μm)が同量(30体積%)用いられたところ、固着応力は0.45MPa(判定:×)であった。
実施例1において、コークスの代わりにガラス繊維(繊維径10μm、繊維長30μm)が同量(30体積%)用いられたところ、固着応力は0.40MPa(判定:×)であった。
比較例5において、ポリテトラフルオロエチレン樹脂量が90体積%に、またガラス繊維量が10体積%に変更されて用いられたところ、固着応力は0.72MPa(判定:×)であった。
実施例1において、コークスとして平均粒径が35μmのものが同量(30体積%)用いられたところ、固着応力は0.28MPa(判定:×)であった。
比較例7において、ポリテトラフルオロエチレン樹脂量が90体積%に、またコークス量が10体積%に変更されて用いられたところ、固着応力は0.74MPa(判定:×)であった。
実施例1において、コークスのかわりに平均粒径30μmの球状ブロンズが同量(30体積%)用いられたところ、固着応力は0.33MPa(判定:×)であった。
実施例1において、コークスのかわりに平均粒径96μmの球状ブロンズが同量(30体積%)用いられたところ、固着応力は0.27MPa(判定:×)であった。
実施例1において、コークスのかわりに平均粒径75μmの不定形ブロンズが同量(30体積%)用いられたところ、固着応力は0.17MPa(判定:○)であった。
実施例1において、コークスのかわりに平均粒径43μmの不定形ブロンズが同量(30体積%)用いられたところ、固着応力は0.37MPa(判定:×)であった。
実施例1において、コークスのかわりに平均粒径50μmの多孔質ブロンズが同量(30体積%)用いられたところ、固着応力は0.14MPa(判定:○)であった。
実施例1において、コークスのかわりに平均粒径35μmの多孔質ブロンズが同量(30体積%)用いられたところ、固着応力は0.34MPa(判定:×)であった。
Claims (3)
- ポリテトラフルオロエチレン樹脂67〜75体積%および平均粒径45〜80μm、アスペクト比1〜2のコークス粉またはブロンズ粉である充填剤33〜25体積%よりなるポリテトラフルオロエチレン樹脂組成物。
- 請求項1記載のポリテトラフルオロエチレン樹脂組成物から作製されたオイルシールリング。
- 自動車の無段階変速機または動力舵取り装置に適用されるシール材として用いられる請求項2記載のオイルシールリング。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016041340A JP6735571B2 (ja) | 2016-03-03 | 2016-03-03 | ポリテトラフルオロエチレン樹脂組成物 |
US15/440,784 US10125238B2 (en) | 2016-03-03 | 2017-02-23 | Polytetrafluoroethylene resin composition |
DE102017203411.4A DE102017203411A1 (de) | 2016-03-03 | 2017-03-02 | Polytetrafluorethylenharzzusammensetzung |
CN201710123901.3A CN107151408B (zh) | 2016-03-03 | 2017-03-03 | 聚四氟乙烯树脂组合物 |
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JP2016041340A JP6735571B2 (ja) | 2016-03-03 | 2016-03-03 | ポリテトラフルオロエチレン樹脂組成物 |
Publications (3)
Publication Number | Publication Date |
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JP2017155165A JP2017155165A (ja) | 2017-09-07 |
JP2017155165A5 JP2017155165A5 (ja) | 2019-04-04 |
JP6735571B2 true JP6735571B2 (ja) | 2020-08-05 |
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JP2016041340A Active JP6735571B2 (ja) | 2016-03-03 | 2016-03-03 | ポリテトラフルオロエチレン樹脂組成物 |
Country Status (4)
Country | Link |
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US (1) | US10125238B2 (ja) |
JP (1) | JP6735571B2 (ja) |
CN (1) | CN107151408B (ja) |
DE (1) | DE102017203411A1 (ja) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5922453A (en) * | 1997-02-06 | 1999-07-13 | Rogers Corporation | Ceramic-filled fluoropolymer composite containing polymeric powder for high frequency circuit substrates |
JP3674314B2 (ja) | 1998-06-17 | 2005-07-20 | Nok株式会社 | Ptfe樹脂組成物 |
GB9817249D0 (en) * | 1998-08-07 | 1998-10-07 | Glacier Vandervell Ltd | Bearing material |
JP5034150B2 (ja) * | 2000-12-05 | 2012-09-26 | 旭硝子株式会社 | ポリテトラフルオロエチレン造粒物及びその成形品 |
US20150176121A1 (en) * | 2012-07-25 | 2015-06-25 | Nok Corporation | Fluororesin seal ring |
JP6163338B2 (ja) * | 2013-03-29 | 2017-07-12 | 日本バルカー工業株式会社 | 配管シール用フッ素樹脂製ガスケット |
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2016
- 2016-03-03 JP JP2016041340A patent/JP6735571B2/ja active Active
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2017
- 2017-02-23 US US15/440,784 patent/US10125238B2/en active Active
- 2017-03-02 DE DE102017203411.4A patent/DE102017203411A1/de active Pending
- 2017-03-03 CN CN201710123901.3A patent/CN107151408B/zh active Active
Also Published As
Publication number | Publication date |
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DE102017203411A1 (de) | 2017-09-07 |
JP2017155165A (ja) | 2017-09-07 |
CN107151408A (zh) | 2017-09-12 |
US10125238B2 (en) | 2018-11-13 |
US20170253715A1 (en) | 2017-09-07 |
CN107151408B (zh) | 2019-12-31 |
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