WO2014196312A1 - 樹脂ゴム複合体 - Google Patents
樹脂ゴム複合体 Download PDFInfo
- Publication number
- WO2014196312A1 WO2014196312A1 PCT/JP2014/062492 JP2014062492W WO2014196312A1 WO 2014196312 A1 WO2014196312 A1 WO 2014196312A1 JP 2014062492 W JP2014062492 W JP 2014062492W WO 2014196312 A1 WO2014196312 A1 WO 2014196312A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rubber
- resin
- plasma treatment
- pressure plasma
- composite
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/12—Layered products comprising a layer of natural or synthetic rubber comprising natural rubber
Definitions
- the present invention relates to a resin-rubber composite. More specifically, the present invention relates to a resin-rubber composite in which a resin molded product and a vulcanized rubber are directly bonded without an adhesive.
- a method of using an adhesive is generally used.
- the bonding method using an adhesive is not only complicated in process and complicated in process control, it is not only expensive but also it is necessary to use a large amount of environmental load substance such as organic solvent and also at the time of composite production It has the disadvantage that the adhesive is washed away by the molten resin.
- Patent Documents 1 and 2 disclose a method in which the surface of a vulcanized rubber is modified by plasma treatment to adhere a resin.
- the vulcanized rubber and the resin adhere immediately after the plasma treatment, it is difficult to maintain the adhesion state with time. This is considered to be due to the fact that the anti-aging agent, paraffin wax, plasticizer, sulfur etc. bloom over time on the vulcanized rubber surface, thereby significantly reducing the adhesiveness.
- An object of the present invention is a resin-rubber composite in which a resin molded product and a vulcanized rubber are directly bonded without an adhesive, and the adhesiveness significantly decreases with time even after formation of the composite. There is nothing to offer.
- the resin-rubber composite according to the present invention is a resin-rubber composite in which a resin-molded product and a vulcanized rubber are directly bonded without an adhesive and the resin and the rubber are bonded. There is an excellent effect that adhesion does not decrease significantly with time even after formation.
- vulcanized rubber vulcanized natural rubber, EPDM, nitrile rubber, hydrogenated nitrile rubber, acrylic rubber, fluororubber and the like can be used without particular limitation.
- Bloom removal treatment is carried out by cleaning treatment by a known method such as alkaline degreasing, organic solvent degreasing, hydrocarbon degreasing, low pressure plasma treatment under oxygen or air atmosphere, etc.
- Preferably low pressure plasma under oxygen or air atmosphere It is done by processing.
- Low-pressure plasma treatment introduces a vulcanized rubber molded product into a glass vacuum vessel equipped with two parallel flat plate electrodes, and uses a high frequency power supply such as 40 kHz or 13.56 MHz or a 2.45 GHz frequency under oxygen or air atmosphere.
- the pressure is about 10 to 1000 Pa
- the power is about 10 to 30000 W
- the time is about 0.1 to 60 minutes.
- the bloom component on the surface of the vulcanized rubber is removed.
- This process is an essential process on the surface of the vulcanized rubber where only bloom is observed, but it is an optional process on the surface of the vulcanized rubber where no bloom is observed.
- the vulcanized rubber surface (which has been subjected to the bloom removal treatment) is first subjected to low pressure plasma treatment using an inert gas as a first step.
- an inert gas inert gas
- He gas, Ne gas, Ar gas, Kr gas, Xe gas, N 2 gas, etc. preferably He gas
- Ar gas, N 2 gas alone or as a mixture, more preferably He gas alone using a high frequency power supply such as 40 kHz or 13.56 MHz or a microwave power supply with a frequency of 2.45 GHz It is performed under the conditions of 10 to 1000 Pa, power of about 10 to 30000 W, and time of about 0.1 to 60 minutes.
- the low pressure plasma treatment using hydrocarbon gas in the second step is performed under the same conditions and procedures as the low pressure plasma treatment in the first step.
- the hydrocarbon gas any hydrocarbon type monomer can be used, and specific examples thereof include aliphatic saturated hydrocarbons such as methane, ethane, propane and butane, ethylene, propylene and n- At least one kind of aliphatic unsaturated hydrocarbons such as butene, isobutene and acetylene, alicyclic hydrocarbons such as cyclohexene and cyclohexane, aromatic hydrocarbons such as styrene and benzene, etc. is used, preferably ethylene gas is used. .
- the formation of the hydrocarbon plasma polymerized film by such treatment makes it possible to effectively prevent the blooming of the vulcanized rubber component.
- the low pressure plasma treatment using the hydrocarbon gas in the second step is performed again.
- Such low pressure plasma treatment is performed under the same conditions and procedures as the low pressure plasma treatment of the first step.
- a functional group can be imparted to the hydrocarbon plasma polymerized film to firmly adhere the resin.
- any thermoplastic resin can be used without particular limitation, and for example, polyamide resin, polyphenylene sulfide resin, polyimide resin, polyether ether ketone resin, polyethylene terephthalate resin, poly A butylene terephthalate resin, a polyethylene naphthalate resin, a polycarbonate resin etc. are mentioned, Preferably a polyamide-type resin is used.
- polyamide-based resin examples include the following types of typical polyamide (PA) and monomers: PA613, 3T, 6T, 6I, 9T, PA810, PA812, PA1010, PA1012, and others PA1212, PAPACM12, etc. and alloys or blend resins thereof are also used.
- PA polyamide
- PA613, 3T, 6T, 6I, 9T PA810, PA812, PA1010, PA1012, and others PA1212, PAPACM12, etc. and alloys or blend resins thereof are also used.
- thermoplastic resin one to which a filler such as glass fiber is appropriately added to secure desired physical properties can be used, and a plurality of thermoplastic resins can be blended and used.
- the plasma-treated vulcanized rubber is attached to the mold of an injection molding machine and then heated to a temperature above the melting point of the resin.
- the resin thus melted is brought into contact with the surface of the vulcanized rubber by an injection molding method and pressurized, and the resin-rubber composite is produced by the above steps. Therefore, the shape of the vulcanized rubber to be compounded may be any shape as long as it can be applied to the mold, and the shape of the resin to be compounded to the vulcanized rubber may also be arbitrary.
- Example 1 Natural rubber 100 parts by weight HAF carbon black 55 ⁇ Stearic acid (Miyoshi oil product) 1 ⁇ Zinc flower (Sakai Chemical Industry Products) 5 Wax (Ouchi emerging chemical industry product San knock) 3 3 Anti-aging agent (Kawaguchi Chemical Industries Antage RD) 0.6 ⁇ Anti-aging agent (Kawaguchi Chemical Industry Product Antage 3C) 3 ⁇ Vulcanization accelerator (Ouchi emerging chemical industry product Noxseller MSA-G) 1 ⁇ Sulfur 6
- Each of the above components was compounded and kneaded, and compression molding was performed under the conditions of vulcanization at 180 ° C. for 4 minutes so that the thickness is 2 mm. The resulting rubber molded product was cut into a size of 20 ⁇ 40 ⁇ 2 mm to obtain a vulcanized rubber test piece.
- Bloom removal treatment is performed by introducing a vulcanized rubber test piece into a microwave plasma processing apparatus and performing low-pressure plasma processing by microwave method under an oxygen atmosphere with a pressure of about 30 Pa, a frequency of 2.45 GHz and an output of 600 W for 5 minutes. It was
- Step 1 The rubber test pieces subjected to the bloom removal treatment were subjected to a low pressure plasma treatment by a microwave system under a condition of a frequency of 2.45 GHz and an output of 600 W for 1 minute in an atmosphere of He gas at a pressure of about 30 Pa.
- Step 2 Following step 1, low-pressure plasma-treated rubber test pieces using He gas were subjected to microwave low-pressure plasma treatment under an ethylene gas atmosphere with a pressure of about 30 Pa, a frequency of 2.45 GHz, and a power of 600 W for 1 minute.
- Step 3 Following step 2, the ethylene gas low-pressure plasma-treated rubber test piece was subjected to low-pressure plasma treatment under microwave conditions under a He gas atmosphere with a pressure of about 30 Pa, a frequency of 2.45 GHz and an output of 600 W for 1 minute.
- the rubber test piece that has been subjected to the above processing is attached to a mold of an injection molding machine (HM7 manufactured by Nissei Plastic Industry Co., Ltd .; clamping pressure 7 tons [686 MPa]) and then melted at a temperature of 285 ° C. G30)
- HM7 manufactured by Nissei Plastic Industry Co., Ltd .
- clamping pressure 7 tons [686 MPa] 7 tons [686 MPa]
- a resin-rubber composite having a 20 ⁇ 40 ⁇ 4 mm resin layer was produced by bringing a resin into contact with a vulcanized rubber surface by an injection molding method and pressing it at about 6 MPa.
- the rubber layer portion of the resin-rubber composite was forcibly peeled off with pliers, and only the residual rubber area ratio was measured.
- the residual rubber area ratio after leaving for 10 minutes after formation of the composite was 100%, The rubber remaining area ratio after standing for 24 hours was also 100%.
- measurement of adhesive strength and percentage area of remaining rubber by 90 ° peel test according to JIS K 6256 corresponding to ISO 813, 814 is performed on the obtained resin-rubber composite, but hydrocarbon
- the rubber remaining area ratio was measured by the above-mentioned method because the plasma polymerization film becomes extremely slippery when it is rubberized.
- Example 2 In Example 1, when acetylene gas is used instead of ethylene gas in step 2, the rubber remaining area ratio of the obtained resin-rubber composite is 90% after standing for 10 minutes for composite formation, and 24 hours It was 80% after leaving.
- Example 3 In Example 1, when propylene gas was used instead of ethylene gas in step 2, the rubber remaining area ratio of the obtained resin-rubber composite was 90% after being allowed to stand for 10 minutes for composite formation, and 24 hours It was 80% after leaving.
- Example 4 In Example 1, when methane gas was used instead of ethylene gas in step 2, the rubber remaining area ratio of the obtained resin-rubber composite was 90% after being allowed to stand for 10 minutes for complex formation, and was left for 24 hours It was 80% after.
- Example 5 In Example 1, using an EPDM composition of the following composition as a rubber composition, compression molding was carried out under the conditions of vulcanization at 180 ° C. for 6 minutes to prepare a vulcanized rubber test piece, to obtain a resin-rubber composite .
- EPDM JSR product EP 33
- HAF carbon black 55 ⁇
- Stearic acid Miyoshi oil product
- Zinc flower Tin (Sakai Chemical Industry Products)
- Dyna process oil Idemitsu Kosan product PW-380
- Organic peroxides NOF product perm mill D
- Example 6 In Example 1, a nitrile rubber composition of the following composition is used as a rubber composition, and compression molding is performed under vulcanization conditions of 180 ° C. for 4 minutes to prepare a vulcanized rubber test piece, to obtain a resin-rubber composite.
- Nitrile rubber 100 parts by weight HAF carbon black 50 ⁇ 1 stearic acid Zinc flower (Sakai Chemical Industry Products) 5 Plasticizer (ADEKA product RS-107; adipic acid ether ester) 5 Anti-aging agent (Anthese RD) 1.5 ⁇ Anti-aging agent (Antage 3C) 2 ⁇ Vulcanization accelerator (Ouchi emerging chemical industry product Noccellar TT) 0.6 ⁇ Vulcanization accelerator (Ouchi emerging chemical industry product Noxcella CZ) 1.5 ⁇ Sulfur 0.5
- the rubber remaining area ratio of the obtained resin-rubber composite was 100% after being allowed to stand for 10 minutes for complex formation, and 90% after being allowed to stand for 24 hours.
- Example 7 In Example 1, a hydrogenated nitrile rubber composition having the following composition is used as a rubber composition, and compression molding is performed under a vulcanization condition of 180 ° C. for 6 minutes to prepare a vulcanized rubber test piece, and a resin-rubber composite I got Hydrogenated nitrile rubber (Nippon Zeon product Zetpol 2020) 100 parts by weight HAF carbon black 50 ⁇ 1 stearic acid Zinc flower (Sakai Chemical Industry Products) 5 Plasticizer (RS-107) 5 ⁇ Anti-aging agent (Anthese RD) 0.5 ⁇ Anti-aging agent (Ouchi emerging chemical industry product Noc Crack MBZ) 0.6 ⁇ Vulcanizing agent (Hercules product VulCup40KE) 8 ⁇ The rubber remaining area ratio of the obtained resin-rubber composite was 100% after being allowed to stand for 10 minutes for complex formation, and 90% after being allowed to stand for 24 hours.
- Example 8 In Example 1, an acrylic rubber composition of the following composition is used as a rubber composition, and compression molding is performed under vulcanization conditions at 180 ° C. for 8 minutes to prepare a vulcanized rubber test piece, to obtain a resin-rubber composite.
- the Acrylic rubber (Unimatec product PA-522HF) 100 parts by weight HAF carbon black 55 ⁇ 1 stearic acid Anti-aging agent (Shiroishi calcium product now guard 445) 2 ⁇ Processing aids (Schil & Seilacher (GmbH & Co) products 2 ⁇ Scractor WB 212) Processing aid (Toho Chemical Industry product Fasfanol RL210) 0.5 ⁇ Vulcanization accelerator (Unimatec product Cheminox AC-6) 0.6 ⁇ Vulcanization accelerator (Ouchi emerging chemical industry product Noccellar DT) 2 The rubber remaining area ratio of the obtained resin-rubber composite was 100% after being allowed to stand for 10 minutes for complex formation, and was 100% even after being allowed to stand for 24 hours.
- Example 9 In Example 1, a fluororubber composition of the following composition is used as a rubber composition, and compression molding is carried out under the conditions of vulcanization at 180 ° C. for 6 minutes to prepare a vulcanized rubber test piece to obtain a resin-rubber composite.
- the Fluorine rubber 100 parts by weight calcium metasilicate 40 ⁇ MT carbon black 20 pieces Magnesium oxide (Kyowa Chemical Products Magnesia # 150) 6 Calcium hydroxide 3 Vulcanizing agent (DuPont's product curative # 30) 2 Vulcanization accelerator (DuPont's product curative # 20) 1 ⁇
- the rubber remaining area ratio of the obtained resin-rubber composite was 100% after being allowed to stand for 10 minutes for complex formation, and was 80% after being allowed to stand for 24 hours.
- Example 1 Comparative Example 1 In Example 1, a resin-rubber composite was obtained without performing the bloom removal process and all the low pressure plasma processes of Steps 1 to 3. The rubber remaining area ratio of the obtained resin-rubber composite was 0% after being allowed to stand for 10 minutes for composite formation.
- Comparative example 2 In Example 1, a resin-rubber composite was obtained without performing the plasma treatment of Steps 2 to 3. The remaining rubber area ratio of the obtained resin-rubber composite was 100% after being allowed to stand for 10 minutes for complex formation, but was 10% after being allowed to stand for 24 hours.
- Comparative example 3 In Example 1, a resin-rubber composite was obtained without performing the plasma treatment of Step 3. The rubber remaining area ratio of the obtained resin-rubber composite was 0% after being allowed to stand for 10 minutes for composite formation.
- Comparative example 4 In Example 1, a mixed resin of He gas and ethylene gas of 1: 1 was used for the plasma treatment of Step 1, and a resin-rubber composite was obtained without performing the plasma treatment of Steps 2-3. The rubber remaining area ratio of the obtained resin-rubber composite was 0% after being allowed to stand for 10 minutes for composite formation.
- Comparative example 5 In Example 1, a resin-rubber composite was obtained without performing the bloom removal treatment. The rubber remaining area ratio of the obtained resin-rubber composite was 0% after being allowed to stand for 10 minutes for composite formation.
- Comparative example 6 In Example 1, a resin-rubber composite was obtained without performing the plasma treatment of Step 1. The rubber remaining area ratio of the obtained resin-rubber composite was 30% after being allowed to stand for 10 minutes for composite formation.
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Abstract
Description
種類 原料モノマー
46 テトラメチレンジアミン-アジピン酸塩
6 ε-カプロラクタム、ε-アミノカプロン酸
66 ヘキサメチレンジアミン-アジピン酸塩
610 ヘキサメチレンジアミン-セバシン酸塩
612 ヘキサメチレンジアミン-ドデカン二酸塩
11 ω-アミノウンデカン酸
12 ω-ラウロラクタム、ω-アミノドデカン酸
天然ゴム 100重量部
HAFカーボンブラック 55 〃
ステアリン酸(ミヨシ油脂製品) 1 〃
亜鉛華(堺化学工業製品) 5 〃
ワックス(大内新興化学工業製品サンノック) 3 〃
老化防止剤(川口化学工業製品アンテージRD) 0.6 〃
老化防止剤(川口化学工業製品アンテージ3C) 3 〃
加硫促進剤(大内新興化学工業製品ノクセラーMSA-G) 1 〃
イオウ 6 〃
以上の各成分を配合、混練し、厚みが2mmとなるように180℃、4分間の加硫条件下で圧縮成形を行った。得られたゴム成形物を20×40×2mmの大きさにカットし加硫ゴム試験片を得た。
〔ステップ1〕
ブルーム除去処理されたゴム試験片を、圧力約30PaのHeガス雰囲気下、周波数2.45GHz、出力600W、1分間の条件でマイクロ波方式による低圧プラズマ処理を行った。
〔ステップ2〕
ステップ1に続き、Heガスを用いた低圧プラズマ処理ゴム試験片を、圧力約30Paのエチレンガス雰囲気下、周波数2.45GHz、出力600W、1分間の条件でマイクロ波方式による低圧プラズマ処理を行った。
〔ステップ3〕
ステップ2に続き、エチレンガス低圧プラズマ処理ゴム試験片を、圧力約30PaのHeガス雰囲気下、周波数2.45GHz、出力600W、1分間の条件でマイクロ波方式による低圧プラズマ処理を行った。
実施例1において、ステップ2のエチレンガスの代わりにアセチレンガスが用いられたところ、得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では90%であり、24時間放置後では80%であった。
実施例1において、ステップ2のエチレンガスの代わりにプロピレンガスが用いられたところ、得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では90%であり、24時間放置後では80%であった。
実施例1において、ステップ2のエチレンガスの代わりにメタンガスが用いられたところ、得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では90%であり、24時間放置後では80%であった。
実施例1において、ゴム組成物として下記配合のEPDM組成物を用い、180℃、6分間の加硫条件下で圧縮成形を行って加硫ゴム試験片を作成し、樹脂ゴム複合体を得た。
EPDM(JSR社製品EP33) 100重量部
HAFカーボンブラック 55 〃
ステアリン酸(ミヨシ油脂製品) 1 〃
亜鉛華(堺化学工業製品) 5 〃
ダイナプロセスオイル(出光興産製品PW-380) 5 〃
有機過酸化物(日本油脂製品パークミルD) 1.5 〃
得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では100%であり、24時間放置後では90%であった。
実施例1において、ゴム組成物として下記配合のニトリルゴム組成物を用い、180℃、4分間の加硫条件下で圧縮成形を行って加硫ゴム試験片を作成し、樹脂ゴム複合体を得た。
ニトリルゴム(日本ゼオン製品DN200) 100重量部
HAFカーボンブラック 50 〃
ステアリン酸 1 〃
亜鉛華(堺化学工業製品) 5 〃
可塑剤(ADEKA社製品RS-107;アジピン酸エーテルエステル) 5 〃
老化防止剤(アンテージRD) 1.5 〃
老化防止剤(アンテージ3C) 2 〃
加硫促進剤(大内新興化学工業製品ノクセラーTT) 0.6 〃
加硫促進剤(大内新興化学工業製品ノクセラーCZ) 1.5 〃
イオウ 0.5 〃
得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では100%であり、24時間放置後では90%であった。
実施例1において、ゴム組成物として下記配合の水素化ニトリルゴム組成物を用い、180℃、6分間の加硫条件下で圧縮成形を行って加硫ゴム試験片を作成し、樹脂ゴム複合体を得た。
水素化ニトリルゴム(日本ゼオン製品Zetpol 2020) 100重量部
HAFカーボンブラック 50 〃
ステアリン酸 1 〃
亜鉛華(堺化学工業製品) 5 〃
可塑剤(RS-107) 5 〃
老化防止剤(アンテージRD) 0.5 〃
老化防止剤(大内新興化学工業製品ノクラックMBZ) 0.6 〃
加硫剤(ハーキュレス社製品VulCup40KE) 8 〃
得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では100%であり、24時間放置後では90%であった。
実施例1において、ゴム組成物として下記配合のアクリルゴム組成物を用い、180℃、8分間の加硫条件下で圧縮成形を行って加硫ゴム試験片を作成し、樹脂ゴム複合体を得た。
アクリルゴム(ユニマテック製品PA-522HF) 100重量部
HAFカーボンブラック 55 〃
ステアリン酸 1 〃
老化防止剤(白石カルシウム製品ナウガード445) 2 〃
加工助剤(Schil & Seilacher(GmbH&Co)社製品 2 〃
スクラクトールWB212)
加工助剤(東邦化学工業製品ファスファノールRL210) 0.5 〃
加硫促進剤(ユニマテック製品ケミノックスAC-6) 0.6 〃
加硫促進剤(大内新興化学工業製品ノクセラーDT) 2 〃
得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では100%であり、24時間放置後においても100%であった。
実施例1において、ゴム組成物として下記配合のフッ素ゴム組成物を用い、180℃、6分間の加硫条件下で圧縮成形を行って加硫ゴム試験片を作成し、樹脂ゴム複合体を得た。
フッ素ゴム(デュポン社製品バイトンE45) 100重量部
メタけい酸カルシウム 40 〃
MTカーボンブラック 20 〃
酸化マグネシウム(協和化学製品マグネシア♯150) 6 〃
水酸化カルシウム 3 〃
加硫剤(デュポン社製品キュラティブ♯30) 2 〃
加硫促進剤(デュポン社製品キュラティブ♯20) 1 〃
得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では100%であり、24時間放置後では80%であった。
実施例1において、ブルーム除去処理およびステップ1~3のすべての低圧プラズマ処理を行うことなく、樹脂ゴム複合体を得た。得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では0%であった。
実施例1において、ステップ2~3のプラズマ処理を行うことなく、樹脂ゴム複合体を得た。得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では100%であったが、24時間放置後では10%であった。
実施例1において、ステップ3のプラズマ処理を行うことなく、樹脂ゴム複合体を得た。得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では0%であった。
実施例1において、ステップ1のプラズマ処理にHeガスとエチレンガスが1:1の混合ガスを用い、ステップ2~3のプラズマ処理を行うことなく樹脂ゴム複合体を得た。得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では0%であった。
実施例1において、ブルーム除去処理を行うことなく、樹脂ゴム複合体を得た。得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では0%であった。
実施例1において、ステップ1のプラズマ処理を行うことなく、樹脂ゴム複合体を得た。得られた樹脂ゴム複合体のゴム残り面積率は、複合体形成10分間放置後では30%であった。
(1) 各実施例では樹脂ゴム複合体を形成させた後24時間経った後においても強固な接着力を示している。
(2) ブルーム除去処理および低圧プラズマ処理を全く行わなかった場合(比較例1)、ステップ3のプラズマ処理を行わず炭化水素プラズマ重合膜に樹脂と反応する官能基が存在しない場合(比較例3)、炭化水素単独のプラズマ重合膜の形成が行われない場合(比較例4)、加硫ゴム表面にブルームが確認されているにもかかわらずブルームの除去が行われない場合(比較例5)、ステップ1のHeガスを用いたプラズマ処理が行われず、ゴムへの炭化水素プラズマ重合膜の密着性が悪い場合(比較例6)には、ゴムと樹脂との接着性が不十分となる。
(3) 特許文献2などで開示されているように低圧プラズマ処理が酸素ガス雰囲気下に続きHeガス雰囲気下で行われるのみでは、樹脂ゴム複合体形成後10分間の接着性には優れているものの、24時間経過後ではゴム残り面積率が10%となってしまう(比較例2)。
Claims (7)
- 加硫ゴム表面に、不活性ガスを用いた低圧プラズマ処理、炭化水素ガスを用いた低圧プラズマ処理および不活性ガスを用いた低圧プラズマ処理が順次施された加硫ゴムに、接着剤を介することなく樹脂を直接接着せしめた樹脂ゴム複合体。
- 加硫ゴム表面のブルームが予め除去処理されたうえで各プラズマ処理が行われた請求項1記載の樹脂ゴム複合体。
- ブルームの除去が、洗浄処理または酸素あるいは空気雰囲気下での低圧プラズマ処理により行われた請求項2記載の樹脂ゴム複合体。
- 加硫ゴムが天然ゴム、EPDM、ニトリルゴム、水素化ニトリルゴム、アクリルゴムまたはフッ素ゴムの加硫ゴムである請求項1または2記載の樹脂ゴム複合体。
- 不活性ガス低圧プラズマ処理がいずれもHeガス低圧プラズマ処理として行われた請求項1記載の樹脂ゴム複合体。
- 炭化水素ガス低圧プラズマ処理がエチレンガス低圧プラズマ処理として行われた請求項1記載の樹脂ゴム複合体。
- 加硫ゴム表面に、射出成形法により樹脂を直接接着せしめた請求項1記載の樹脂ゴム複合体。
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JPS5614534A (en) * | 1979-07-16 | 1981-02-12 | Shin Etsu Chem Co Ltd | Surface treatment of plastic molded product |
JPS6141541A (ja) * | 1984-08-04 | 1986-02-27 | 株式会社ブリヂストン | ゴム製品用標識 |
JPS6241233A (ja) * | 1985-08-16 | 1987-02-23 | Bridgestone Corp | 加硫ゴムと他材料との接着方法 |
JPS6241232A (ja) * | 1985-08-16 | 1987-02-23 | Bridgestone Corp | 加硫ゴムと他材料との接着方法 |
JPS62132940A (ja) * | 1985-12-04 | 1987-06-16 | Sumitomo Electric Ind Ltd | 高分子基材へのプラズマ重合薄膜形成方法 |
JPH02103206A (ja) * | 1988-10-13 | 1990-04-16 | Kanebo Ltd | プラズマ処理−重合装置 |
JPH03262636A (ja) * | 1990-03-14 | 1991-11-22 | Bridgestone Corp | ゴム系複合材料の製造方法 |
JPH05202208A (ja) | 1991-08-20 | 1993-08-10 | Bridgestone Corp | 加硫ゴムの表面処理方法 |
JPH09216960A (ja) | 1996-02-08 | 1997-08-19 | Bridgestone Corp | 加硫ゴムの表面処理方法及びゴム系複合材料の製造方法 |
JP2001162723A (ja) * | 1999-12-08 | 2001-06-19 | Tokai Rubber Ind Ltd | ゴム・ポリアミド複合体及びその製造方法 |
-
2014
- 2014-05-09 EP EP14807987.4A patent/EP3006490A1/en not_active Withdrawn
- 2014-05-09 WO PCT/JP2014/062492 patent/WO2014196312A1/ja active Application Filing
- 2014-05-09 JP JP2015521352A patent/JPWO2014196312A1/ja active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5614534A (en) * | 1979-07-16 | 1981-02-12 | Shin Etsu Chem Co Ltd | Surface treatment of plastic molded product |
JPS6141541A (ja) * | 1984-08-04 | 1986-02-27 | 株式会社ブリヂストン | ゴム製品用標識 |
JPS6241233A (ja) * | 1985-08-16 | 1987-02-23 | Bridgestone Corp | 加硫ゴムと他材料との接着方法 |
JPS6241232A (ja) * | 1985-08-16 | 1987-02-23 | Bridgestone Corp | 加硫ゴムと他材料との接着方法 |
JPS62132940A (ja) * | 1985-12-04 | 1987-06-16 | Sumitomo Electric Ind Ltd | 高分子基材へのプラズマ重合薄膜形成方法 |
JPH02103206A (ja) * | 1988-10-13 | 1990-04-16 | Kanebo Ltd | プラズマ処理−重合装置 |
JPH03262636A (ja) * | 1990-03-14 | 1991-11-22 | Bridgestone Corp | ゴム系複合材料の製造方法 |
JPH05202208A (ja) | 1991-08-20 | 1993-08-10 | Bridgestone Corp | 加硫ゴムの表面処理方法 |
JPH09216960A (ja) | 1996-02-08 | 1997-08-19 | Bridgestone Corp | 加硫ゴムの表面処理方法及びゴム系複合材料の製造方法 |
JP2001162723A (ja) * | 1999-12-08 | 2001-06-19 | Tokai Rubber Ind Ltd | ゴム・ポリアミド複合体及びその製造方法 |
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JPWO2014196312A1 (ja) | 2017-02-23 |
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