JP5088324B2 - フッ素ゴム組成物、フッ素ゴム架橋体及びその製造方法並びにoリング用フッ素ゴム架橋体 - Google Patents
フッ素ゴム組成物、フッ素ゴム架橋体及びその製造方法並びにoリング用フッ素ゴム架橋体 Download PDFInfo
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- JP5088324B2 JP5088324B2 JP2008536341A JP2008536341A JP5088324B2 JP 5088324 B2 JP5088324 B2 JP 5088324B2 JP 2008536341 A JP2008536341 A JP 2008536341A JP 2008536341 A JP2008536341 A JP 2008536341A JP 5088324 B2 JP5088324 B2 JP 5088324B2
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- fluororubber
- fluoropolymer
- talc
- peroxide
- parts
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- 229920001973 fluoroelastomer Polymers 0.000 title claims abstract description 69
- 239000000203 mixture Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000454 talc Substances 0.000 claims abstract description 41
- 229910052623 talc Inorganic materials 0.000 claims abstract description 41
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 22
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 22
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- 150000002978 peroxides Chemical class 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 7
- 230000005660 hydrophilic surface Effects 0.000 claims abstract description 5
- 239000003086 colorant Substances 0.000 claims description 5
- 238000010060 peroxide vulcanization Methods 0.000 claims description 5
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- BLTXWCKMNMYXEA-UHFFFAOYSA-N 1,1,2-trifluoro-2-(trifluoromethoxy)ethene Chemical compound FC(F)=C(F)OC(F)(F)F BLTXWCKMNMYXEA-UHFFFAOYSA-N 0.000 abstract description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical group FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 abstract description 2
- 230000008021 deposition Effects 0.000 abstract 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 1
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- 239000000047 product Substances 0.000 description 14
- 238000004073 vulcanization Methods 0.000 description 11
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- 238000012360 testing method Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- MYONAGGJKCJOBT-UHFFFAOYSA-N benzimidazol-2-one Chemical compound C1=CC=CC2=NC(=O)N=C21 MYONAGGJKCJOBT-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
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- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 2
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- KDGNCLDCOVTOCS-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy propan-2-yl carbonate Chemical group CC(C)OC(=O)OOC(C)(C)C KDGNCLDCOVTOCS-UHFFFAOYSA-N 0.000 description 1
- RIPYNJLMMFGZSX-UHFFFAOYSA-N (5-benzoylperoxy-2,5-dimethylhexan-2-yl) benzenecarboperoxoate Chemical compound C=1C=CC=CC=1C(=O)OOC(C)(C)CCC(C)(C)OOC(=O)C1=CC=CC=C1 RIPYNJLMMFGZSX-UHFFFAOYSA-N 0.000 description 1
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- BZPCMSSQHRAJCC-UHFFFAOYSA-N 1,2,3,3,4,4,5,5,5-nonafluoro-1-(1,2,3,3,4,4,5,5,5-nonafluoropent-1-enoxy)pent-1-ene Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)=C(F)OC(F)=C(F)C(F)(F)C(F)(F)C(F)(F)F BZPCMSSQHRAJCC-UHFFFAOYSA-N 0.000 description 1
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- PAOHAQSLJSMLAT-UHFFFAOYSA-N 1-butylperoxybutane Chemical group CCCCOOCCCC PAOHAQSLJSMLAT-UHFFFAOYSA-N 0.000 description 1
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical group CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- JGBAASVQPMTVHO-UHFFFAOYSA-N 2,5-dihydroperoxy-2,5-dimethylhexane Chemical compound OOC(C)(C)CCC(C)(C)OO JGBAASVQPMTVHO-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- FWLHAQYOFMQTHQ-UHFFFAOYSA-N 2-N-[8-[[8-(4-aminoanilino)-10-phenylphenazin-10-ium-2-yl]amino]-10-phenylphenazin-10-ium-2-yl]-8-N,10-diphenylphenazin-10-ium-2,8-diamine hydroxy-oxido-dioxochromium Chemical compound O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.Nc1ccc(Nc2ccc3nc4ccc(Nc5ccc6nc7ccc(Nc8ccc9nc%10ccc(Nc%11ccccc%11)cc%10[n+](-c%10ccccc%10)c9c8)cc7[n+](-c7ccccc7)c6c5)cc4[n+](-c4ccccc4)c3c2)cc1 FWLHAQYOFMQTHQ-UHFFFAOYSA-N 0.000 description 1
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- 239000002904 solvent Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical group CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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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
- C08K3/34—Silicon-containing compounds
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
- C08L15/02—Rubber derivatives containing halogen
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- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Description
2:先端部の判定部位
本発明のフッ素ゴム組成物は、過酸化物加硫可能なフッ素ポリマーからなるフッ素ゴムと、過酸化物系架橋剤と、親水性表面を有する焼成タルクである耐熱性充填剤とを少なくとも含有する。
フッ素ゴムに用いられる過酸化物加硫可能なフッ素ポリマーとしては、含フッ素オレフィンの三元共重合体を用いることができる。
架橋剤としては、過酸化物系架橋剤が用いられ、過酸化物系架橋剤としては有機過酸化物架橋剤を好ましく用いることができる。
架橋促進剤としては、本発明においては、酸化亜鉛、トリアリル・イソシアヌレート等が用いられる。その他に、酸化亜鉛を代表とする金属酸化物、ステアリン酸を代表とする脂肪酸、シリカ系補強剤を配合した場合はトリエタノールアミンやジエチレングリコール等が挙げられる。
本発明において、耐熱性充填剤として親水性表面を有する焼成タルクが用いられる。本発明に用いる焼成タルクは市販品として入手でき、市販品としては、エンスタック24(浅田製粉製)が挙げられる。
本発明は、着色配合における生地準備の問題解決を図るものであり、カーボンブラックは実質的に配合しないことが好ましく、ここで実質的に配合しないというのは、フッ素ポリマー100重量部当たり1重量部以下が好ましく、より好ましくは0.5重量部以下である。
本発明においては、以上の成分以外に、ゴム配合剤として、例えばハイドロタルサイト(Mg6Al2(OH)16CO3)、炭酸カルシウム、炭酸マグネシウム、水酸化アルミニウム、水酸化マグネシウム、ケイ酸アルミニウム、ケイ酸マグネシウム、ケイ酸カルシウム、チタン酸カリウム、酸化マグネシウム、酸化チタン、硫酸バリウム、硼酸アルミニウム、ガラス繊維、アラミド繊維等の充填剤;ワックス、金属セッケン等の加工助剤;水酸化カルシウム、酸化亜鉛等の受酸剤;老化防止剤;熱可塑性樹脂;などのようなゴム工業で一般的に使用されている配合剤を本発明の効果を損なわない範囲で必要に応じて添加できる。
本発明に係る過酸化物加硫可能なフッ素ポリマーからなるフッ素ゴム組成物の調製法としては、例えば、所定量の上記各成分を、インターミックス、ニーダー、バンバリーミキサー等の密閉型混練機またはオープンロールなどのゴム用の一般的な混練機で混練する手法や、各成分を溶剤等で溶解して、撹拌機等で分散させる方法などがある。
<一次加硫(架橋)>
上記のようにして得られたフッ素ゴム組成物は、射出成形機、圧縮成形機、加硫プレス機、オーブンなどを用いて、通常、140℃〜230℃の温度で1〜120分程度加熱(一次加硫)することにより、架橋(加硫)成形できる。
本発明において、一次加硫後の熱処理を行うには、200℃〜300℃の温度範囲、好ましくは250℃〜260℃の温度範囲で熱処理する。
上記のようして得られたフッ素ゴム架橋体は、着色可能であり、耐熱性、耐低温性に優れており、中でもOリング等に好適に使用できる。
<配合成分と配合量>
フッ素ゴム(デュポン社製「バイトンGLT305」) 100重量部
硫酸バリウム(堺化学社製「B−54」) 30重量部
焼成タルク(浅田製粉社製「エンスタック24」) 10重量部
酸化亜鉛(正同化学工業社製) 5重量部
脂肪酸塩(花王社製「NSソープ」) 1重量部
べんがら(レミツカラー社製「ブラウン#401」) 5重量部
トリアリル・イソシアヌレート(日本化成社製「タイク」) 3重量部
2,5−ジメチル−2,5−ジ(第3ブチルペルオキシ)ヘキシン−3
(日本油脂社製「パーヘキサ 25B40」) 3重量部
1.タルク析出評価
以上の各配合成分をニーダに投入して20分混練した後、オープンロールでまとめて生地を得て、生地が十分に冷却した後、ロールにて熱入れを行った。これを3サイクル実施した。
(常態物性)
上記組成物(加硫成分を除く。)を用いて6インチミキシングロールにより厚さ2mmの未加硫ゴムシートを作製し、これに160℃×60分のプレス加硫の後、150℃×8時間のオーブン加硫を施して、常態物性評価用のシート状のゴム試験片を得た。
1)ゴム硬度Hs;JIS K 6253に準拠し、タイプAデュロメーターで測定した。
2)引張り強さTb(MPa);JIS K 6251に準拠。
3)伸びEb(%);JIS K 6251に準拠(23±3℃にて測定)。
上記未加硫組成物を用いて、JIS K 6262に準拠する大型試験片を、160℃×60分のプレス加硫と150℃×8時間のオーブン加硫を通じて作製し、JIS K 6262に準拠して200℃×70時間の加熱後の圧縮永久歪(%)を評価した。評価結果を表1に示す。
圧縮永久歪の評価と同様に250℃×70時間後の常態物性変化(率)を評価した。具体的には、ゴム硬度Hsは上記常態物性との変化値を求め、表1に示した。また引張り強さTbと伸びEbについては、上記常態物性との変化率を求め、表1に示した。
100℃の燃料油C(イソオクタン/トルエン=50/50〔Vol%〕)中に168時間浸漬した後の常態物性変化(率)を評価した。具体的には、ゴム硬度Hsは上記常態物性との変化値を求め、表1に示した。また引張り強さTbと伸びEbについては、上記常態物性との変化率を求め、表1に示した。
TR10値を求め、表1に示した。
実施例1において、配合成分中の焼成タルクを、疎水性表面を有する焼成していないタルク(浅田製粉社製「タルク JA80R」粒径:10〜14μm)に代えた以外は同様に評価した。その結果を表1に示す。
実施例1において、配合成分中の焼成タルクを、疎水性表面を有する焼成していないタルク(浅田製粉社製 タルク FFR 粒径:<3.9μm)に代えた以外は同様に評価した。その結果を表1に示す。
実施例1において、配合成分中の焼成タルクを、界面活性剤処理タルク(浅田製粉社製 タルクCT110)に代えた以外は同様に評価した。その結果を表1に示す。
Claims (5)
- 過酸化物加硫可能なフッ素ポリマーからなるフッ素ゴムと、過酸化物系架橋剤と、親水性表面を有する焼成タルクからなる耐熱性充填剤とを少なくとも含有し、カーボンブラックを実質的に配合せず着色剤を配合し、前記焼成タルクをフッ素ポリマー100重量部当り2〜20重量部配合することを特徴とするフッ素ゴム組成物。
- 過酸化物加硫可能なフッ素ポリマーが、TR10値が−40℃〜−25℃の特性を有する低温タイプのフッ化ビニリデン−パーフルオロ(メチルビニルエーテル)−テトラフルオロエチレン三元系フッ素ポリマーであることを特徴とする請求項1記載のフッ素ゴム組成物。
- 請求項1又は2記載の未加硫のフッ素ゴム組成物を生地押し出し機により押し出して生地を準備し、次いで加硫することを特徴とするフッ素ゴム架橋体の製造方法。
- 前記フッ素ゴム架橋体は、TR10値で規定される低温性が−25℃以下、250℃×70hrでの硬度変化が+5ポイント以内、伸び変化が−10%以内であることを特徴とする請求項3記載のフッ素ゴム架橋体の製造方法。
- 請求項3又は4記載のフッ素ゴム架橋体の製造方法により得られるフッ素ゴム架橋体をOリングに用いることを特徴とするOリング用フッ素ゴム架橋体。
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PCT/JP2007/068205 WO2008038555A1 (fr) | 2006-09-26 | 2007-09-19 | Composition de caoutchouc fluoré, caoutchouc fluoré réticulé, procédé pour la production de celui-ci et caoutchouc fluoré réticulé pour joints toriques |
JP2008536341A JP5088324B2 (ja) | 2006-09-26 | 2007-09-19 | フッ素ゴム組成物、フッ素ゴム架橋体及びその製造方法並びにoリング用フッ素ゴム架橋体 |
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JP5628054B2 (ja) * | 2011-01-18 | 2014-11-19 | 株式会社クレハ | ポリフッ化ビニリデン樹脂組成物、着色樹脂フィルム、及び太陽電池モジュール用バックシート |
JP5418683B2 (ja) * | 2011-04-06 | 2014-02-19 | Nok株式会社 | フッ素ゴム組成物 |
JP5728297B2 (ja) * | 2011-06-09 | 2015-06-03 | 白石カルシウム株式会社 | 架橋ポリマー組成物及びその製造方法 |
US20130281598A1 (en) * | 2012-04-18 | 2013-10-24 | E I Du Pont De Nemours And Company | Cured fluoroelastomer compositions containing magnesium silicate filler |
KR101468615B1 (ko) * | 2013-02-22 | 2014-12-03 | 주식회사 경신전선 | 불소 함유 열가소성 엘라스토머 조성물, 이를 이용하여 제조된 절연체 및 이를 포함하는 전선 및 케이블 |
CN107778734B (zh) * | 2016-08-25 | 2019-09-24 | 中昊晨光化工研究院有限公司 | 一种氟橡胶混炼胶及制备方法 |
JP6474054B1 (ja) | 2017-06-06 | 2019-02-27 | Nok株式会社 | フッ素ゴム組成物及びフッ素ゴム架橋体 |
CN107446278A (zh) * | 2017-08-14 | 2017-12-08 | 陕西奉航橡胶密封件有限责任公司 | 一种耐磨油封用彩色氟橡胶及其制备方法 |
JP7144415B2 (ja) * | 2017-11-02 | 2022-09-29 | Nok株式会社 | フッ素ゴム組成物およびフッ素ゴム成形品 |
CN108841017B (zh) * | 2018-05-21 | 2021-09-14 | 山西福诺欧新材料科技股份有限公司 | 一种提高四丙氟橡胶交联活性的热处理方法 |
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2007
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- 2007-09-19 CN CN200780035706XA patent/CN101516990B/zh active Active
- 2007-09-19 US US12/440,909 patent/US20100036039A1/en not_active Abandoned
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JPH07258337A (ja) * | 1994-03-25 | 1995-10-09 | Enomoto Kogyo Kk | パッキン素材 |
JP2000053835A (ja) * | 1998-08-07 | 2000-02-22 | Nippon Mektron Ltd | 加硫性フッ素ゴム組成物 |
JP2006188695A (ja) * | 2005-01-05 | 2006-07-20 | Freudenberg Nok General Partnership | フルオロカーボン加工助剤を用いた動的加硫 |
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CN101516990B (zh) | 2013-01-09 |
KR20090073197A (ko) | 2009-07-02 |
EP2070981A1 (en) | 2009-06-17 |
ATE547471T1 (de) | 2012-03-15 |
US20100036039A1 (en) | 2010-02-11 |
JPWO2008038555A1 (ja) | 2010-01-28 |
KR101148547B1 (ko) | 2012-05-23 |
WO2008038555A1 (fr) | 2008-04-03 |
CN101516990A (zh) | 2009-08-26 |
EP2070981B1 (en) | 2012-02-29 |
EP2070981A4 (en) | 2009-11-25 |
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