WO2015146602A1 - 樹脂ゴム複合体 - Google Patents
樹脂ゴム複合体 Download PDFInfo
- Publication number
- WO2015146602A1 WO2015146602A1 PCT/JP2015/057259 JP2015057259W WO2015146602A1 WO 2015146602 A1 WO2015146602 A1 WO 2015146602A1 JP 2015057259 W JP2015057259 W JP 2015057259W WO 2015146602 A1 WO2015146602 A1 WO 2015146602A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rubber
- resin
- gas
- resin molded
- plasma treatment
- 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.)
- Ceased
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- 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
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/528—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by CVD or by PVD, i.e. by chemical vapour deposition or by physical vapour deposition
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/001—Joining in special atmospheres
- B29C66/0012—Joining in special atmospheres characterised by the type of environment
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
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- B29K2681/00—Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, for preformed parts, e.g. for inserts
- B29K2681/04—Polysulfides, e.g. PPS, i.e. polyphenylene sulfide, or derivatives thereof
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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Definitions
- the present invention relates to a resin rubber composite. More specifically, the present invention relates to a resin rubber composite in which a molded product of polyamide-based resin or polyphenylene sulfide-based resin and rubber are directly bonded without using an adhesive.
- an adhesive a method in which the rubber composition is blended so as to react with the base material is used.
- an adhesive is not used, but the base material that can be bonded is limited, and the physical properties of the rubber itself may be deteriorated by blending necessary for bonding.
- Patent Document 1 discloses a polyamide resin and an alkoxysilane compound subjected to plasma treatment, corona discharge treatment or ultraviolet irradiation treatment.
- R 1 , R 2 Arbitrary functional groups
- R 3 , R 4 A resin rubber laminate in which a rubber composition to which a hydrocarbon group has been added is laminated without using an adhesive is described.
- examples of natural rubber, ethylene propylene diene rubber and the like as rubber to which an alkoxysilane compound is added are seen, only the sulfur vulcanization type is shown in the examples.
- Patent Document 2 describes a method of integrally molding the other part.
- vulcanized polymer compounds such as EPDM and natural rubber compounds are exemplified as other molding materials, but they are molded members such as injection molded members, extrudates, compression members, or single layer sheets, multilayers. There is no description that it is a sheet, a fiber structure, etc., and this is an unvulcanized rubber compound.
- Patent Document 3 is a fuel hose having an inner resin layer and an outer rubber layer laminated on the outer periphery thereof, and after forming an inner resin layer such as a polyamide-based resin or a fluororesin by extrusion molding, Prior to extrusion molding of the outer rubber layer, it is described that the outer peripheral surface of the inner resin layer is subjected to microwave plasma treatment under reduced pressure, but EPDM and natural rubber are exemplified as the extrusion rubber forming the outer rubber layer. It has only been done.
- Patent Document 4 a polymer film having an unsaturated bond is formed on a substrate surface by applying a low-pressure plasma using a hydrocarbon monomer, and then a rubber composition is heated and pressure-bonded on the polymer film.
- a method of manufacturing a rubber-based composite material that bonds and integrates material and rubber has been proposed.
- a plasma polymerized film is formed by performing high-frequency plasma treatment on PET sheet, nylon sheet, nylon cloth, stainless steel plate, etc.
- rubber-based composite materials obtained by thermocompression bonding of these base materials and sulfur vulcanizable natural rubber and polyisoprene blend rubber compositions have been disclosed, but all require further improvement in adhesive strength. Yes.
- An object of the present invention is to provide a resin rubber composite in which a resin molded product and rubber are effectively directly bonded without using an adhesive.
- the object of the present invention is to activate the surface of the polyamide-based resin molded article using an inert gas or the surface of the polyphenylene sulfide-based resin molded article by performing a microwave low-pressure plasma treatment using an active gas. Then, a peroxide-crosslinked nonpolar rubber composition that forms a rubber layer is bonded to a resin molded product in which a polymer film having radicals is formed by performing a microwave low-pressure plasma treatment using a hydrocarbon-based monomer. This is achieved by a resin rubber composite that is directly vulcanized and bonded without using an agent.
- the resin rubber composite according to the present invention has the following features. (1) Formation of a polymer film by plasma treatment on the surface of a resin molded product is performed by a low-pressure plasma treatment method using microwaves. When the same low-pressure plasma treatment is carried out using high frequency, a desired resin is formed. -The adhesion between rubber cannot be ensured. (2) As shown in Comparative Example 1 below, when a polyimide resin is used in place of the polyamide resin molded article or the polyphenylene sulfide resin, the adhesion between the resin and the EPDM can hardly be obtained.
- Peroxide-crosslinkable nonpolar rubber is used as the rubber to be vulcanized and bonded to the surface of the polyamide-based resin molded product or polyphenylene sulfide-based resin, and sulfur is added as a nonpolar rubber having other crosslinkable groups.
- sulfur nonpolar rubber is used, as shown in Comparative Examples 10 and 11 to be described later, the adhesion strength is 0 N / mm in the adhesion test, and therefore the rubber residual ratio is 0%.
- a polyamide-based resin or a polyphenylene sulfide-based resin is used, and a resin to which a filler such as glass fiber is appropriately added can be used to ensure its physical properties.
- Typical polyamide (PA) types and monomers include the following.
- Type CH 2 / NHCO base monomer 46 Tetramethylenediamine-adipate 6 5 ⁇ -caprolactam, ⁇ -aminocaproic acid 66 5 Hexamethylenediamine-adipate 610 7 Hexamethylenediamine-sebacate 612 8 Hexamethylenediamine-dodecanedioate 11 10 ⁇ -Aminoundecanoic acid 12 11 ⁇ -laurolactam, ⁇ -aminododecanoic acid
- PA613, 3T, PA810, PA812, PA1010, PA1012, PA1212, PAPACM12, etc. are also used.
- These polyamide-based resins can be used alone or in combination, and can also be used by blending with other resins such as polypropylene as long as the purpose is not impaired.
- Polyphenylene sulfide-based resins include cross-linked, partially cross-linked, and linear types.
- the cross-linked type is the lowest molecular weight polymer
- the linear type is the highest molecular weight polymer. is there. Since a certain melt viscosity is required as the molding material, the crosslinked type and the partially crosslinked type are subjected to oxygen crosslinking by heat treatment so as to reach the necessary melt viscosity.
- the linear mold is a polymer having a melt viscosity that can be sufficiently molded from the beginning without particularly performing such a heat treatment.
- the weight average molecular weight Mw is preferably about 30000 to 100000, preferably Is approximately 50000-70000.
- Such moldable grade linear polyphenylene sulfide-based resins are supplied to the market by Tosoh, Kureha Chemical, Toprene, etc., and such commercial products are used as they are in the present invention.
- these resin molded products are formed by vulcanizing and bonding a nonpolar rubber to form a laminate and composite, for example, a plate, rod, hollow body having a flat surface, a curved surface, an uneven surface, etc.
- a nonpolar rubber for example, a plate, rod, hollow body having a flat surface, a curved surface, an uneven surface, etc.
- Specific applications include hoses, anti-vibration rubbers, air springs, and further elements such as a fuel guide system, a cooling fluid guide system, and an oil guide system.
- the outer surface of these resin molded products must be prepared before the polymerization of the hydrocarbon monomer, such as He gas, Ne gas, Ar gas, Kr gas, Xe gas, N 2 gas, etc.
- This is activated by plasma treatment using an inert gas or an active gas such as O 2 gas or H 2 gas alone or a mixture thereof.
- the polyamide resin surface is preferably subjected to plasma treatment using He gas, Ar gas, or N 2 gas alone or mixed
- the polyphenylene sulfide resin surface is preferably subjected to plasma treatment using O 2 gas.
- a microwave low-pressure plasma treatment is used under the same treatment conditions as those of the plasma treatment using a hydrocarbon monomer described later.
- a polymer film is formed on the surface of the resin activated by an inert gas or an active gas by applying a microwave low-pressure plasma treatment method using a hydrocarbon monomer.
- Microwave low-pressure plasma treatment uses a hydrocarbon monomer gas atmosphere in a vacuum vessel, and microwaves with a frequency of 433 MHz to 2.45 GHz oscillated from a magnetron located in the upper part of the vacuum chamber are subjected to a dielectric surface in a vacuum. This is performed by exciting the gas on the dielectric surface and generating plasma.
- the pressure is about 10 to 1000 Pa, and it is desirable to appropriately adjust the discharge frequency, discharge output, and treatment time depending on the shape and size of the treatment apparatus. Generally, the output is about 10 to 30000 W, the time is about The treatment is performed for 0.1 to 60 minutes.
- hydrocarbon monomer any compound can be used as long as radicals remain in the polymerized film after plasma polymerization.
- aliphatic hydrocarbons such as methane, ethylene, Aliphatic unsaturated hydrocarbons such as propylene and acetylene, cyclic hydrocarbons such as cyclohexene and cyclohexane, and aromatic hydrocarbons such as styrene and benzene can be used, and acetylene, ethylene, methane, and the like are preferably used.
- hydrocarbon monomer gases can be used alone as they are, but from the viewpoints of discharge sustainability, stability, economy, or physical properties of the formed polymer film, the hydrocarbon monomer gas is a polyamide-based one.
- At least one kind of inert gas such as He gas, Ar gas, Ne gas, N 2 gas, or in the case of polyphenylene sulfide resin molded products, the activity of O 2 gas, H 2 gas, etc. It is also effective to use it as a mixed gas with at least one kind of gas.
- Peroxide-crosslinkable nonpolar rubber is used as the rubber to be bonded to the resin molded product on which the polymer film is formed.
- Examples of the non-polar rubber crosslinked by peroxide include peroxide-crosslinked EPDM, natural rubber, ethylene / propylene rubber, butadiene rubber, styrene-butadiene rubber, etc., preferably peroxide-crosslinked EPDM and natural rubber. Used.
- Peroxide-crosslinkable EPDM is ethylene- ⁇ -olefin, which is a copolymer of ethylene and ⁇ -olefin with a small amount of any diene compound such as 5-ethylidene-2-norbornene, dicyclopentadiene, 1,4-hexadiene, etc. Diene copolymer rubber is used, and in practice, commercially available products such as JSR product EP22, Mitsui Chemicals product EPT3045, Sumitomo Chemical product ESPRENE EPDM501A, Lanxess product Buna EPG2440 are used as they are.
- peroxide compound used as a crosslinking agent for these rubbers examples include, for example, tertiary butyl peroxide, dicumyl peroxide, tertiary butyl cumyl peroxide, 1,1-di (tertiary butyl peroxy) -3.
- crosslinking agents are used in a proportion of about 0.5 to 10 parts by weight, preferably about 0.5 to 6 parts by weight, per 100 parts by weight of rubber. If the blending ratio is less than this, a sufficient crosslinking density cannot be obtained, and the heat resistance and compression set resistance properties become inferior. On the other hand, if the blending ratio is used more than this, a vulcanized molded product can be obtained by foaming. Disappear. In addition, when the vulcanization system is a sulfur system, it is not possible to obtain adhesiveness with a desired resin molded product.
- a co-crosslinking agent composed of a polyfunctional unsaturated compound together with the organic peroxide.
- the polyfunctional unsaturated compound include ethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, triallyl (iso) cyanurate, trimethylolpropane tri (meth) acrylate, triallyl trimellitate and the like.
- These co-crosslinking agents are used in an amount of about 10 parts by weight or less, preferably about 0.5 to 5 parts by weight, per 100 parts by weight of the copolymer rubber.
- carbon black, reinforcing agent or filler represented by silica, anti-aging agent, plasticizer, processing aid, if necessary, Vulcanizing aids and the like are added and used, and these components are kneaded using a closed kneader and an open roll.
- Vulcanization adhesion of a peroxide crosslinkable nonpolar rubber composition to a resin molded product is obtained by directly bonding an unvulcanized nonpolar rubber composition kneaded product to a resin molded product, and depending on the type of rubber used, It is carried out by molding by a vulcanization molding method such as injection molding, compression molding or transfer molding under conditions of about 150 to 200 ° C. and about 0.5 to 60 minutes.
- a vulcanization molding method such as injection molding, compression molding or transfer molding under conditions of about 150 to 200 ° C. and about 0.5 to 60 minutes.
- Patent Document 4 proposes a method of forming a polymer film having an unsaturated bond by low-pressure plasma polymerization of a monomer on the surface of a base material as described above, and bonding it by heat-pressing the rubber composition.
- the type of rubber and substrate and the plasma treatment method are not limited, and the unsaturated bond formed on the substrate and the molecules in the rubber are cross-linked. Therefore, it is essential to select peroxide-crosslinkable non-polar rubber as the rubber to be used, and microwave low-pressure plasma treatment as the plasma treatment. Therefore, the present invention is greatly different from the invention described in Patent Document 4.
- Example 1 PA66 resin (Toray product Amilan CM3001-G30) was used as a polyamide-based resin, and this was molded into a 25 ⁇ 60 ⁇ 2 mm flat plate using an injection molding machine.
- the obtained PA66 resin flat plate was subjected to microwave low-pressure plasma treatment using a microwave plasma apparatus in a helium gas atmosphere at a pressure of about 30 Pa under a frequency of 2.45 GHz, an output of 500 W, and a time of 30 seconds.
- a microwave low-pressure plasma treatment was performed in an acetylene gas atmosphere at a pressure of about 20 Pa under the conditions of a frequency of 2.45 GHz, an output of 300 W, and a time of 1 minute.
- EPDM Composition I EPDM (JSR product EP22) 100 parts by weight HAF carbon black (Cabot Japan product) 50 ⁇ Stearic acid (Miyoshi oil and fat products) 1 ⁇ Dyna Process Oil (Idemitsu Kosan product PW-380) 10 ⁇ Zinc oxide ( ⁇ chemical industry products) 5 ⁇ Organic peroxide (Nippon Yushi Products Park Mill D) 3 ⁇
- the obtained polyamide resin-EPDM composite was measured for adhesion strength and remaining rubber area ratio by 90 ° peel test in accordance with JIS K6256 (2006) corresponding to ISO 813. / mm, rubber remaining area ratio was 100%.
- Example 2 In Example 1, as a hydrocarbon-based monomer, ethylene gas is used instead of acetylene gas, and the plasma processing time using the hydrocarbon-based monomer gas is changed from 1 minute to 2 minutes to perform microwave low-pressure plasma processing. went.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 3.9 N / mm and a rubber remaining area ratio of 100%.
- Example 3 In Example 1, methane gas was used instead of acetylene gas as the hydrocarbon monomer, the output of the plasma treatment using the hydrocarbon monomer gas was changed from 300 W to 500 W, and the treatment time was changed from 1 minute to 6 minutes. Microwave low-pressure plasma treatment was performed.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 3.9 N / mm and a rubber remaining area ratio of 100%.
- Example 4 In Example 1, polyphenylene sulfide-based resin (Tosoh product STSIL PPS GS-30) was used instead of PA66 resin, which is a polyamide-based resin, and oxygen gas was used instead of helium gas.
- the obtained polyphenylene sulfide resin-EPDM composite had an adhesive strength of 3.8 N / mm and a rubber remaining area ratio of 100%.
- Example 5 In Example 1, PA6T (Mitsui Chemicals Aalen A335) was used in place of the PA66 resin as the polyamide resin.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 4.3 N / mm and a rubber remaining area ratio of 100%.
- Example 1 Polyimide resin (Mitsui Chemicals product ARLEN JGN3030) was used instead of PA66 resin, which is a polyamide-based resin.
- the obtained polyimide resin-EPDM composite had an adhesive strength of 1.1 N / mm and a rubber remaining area ratio of 10%.
- Example 2 Comparative Example 2 In Example 1, a SUS304 steel plate was used instead of the PA66 resin, which is a polyamide-based resin.
- the obtained SUS304 steel plate-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 3 Comparative Example 3 In Example 1, an aluminum plate was used instead of the PA66 resin, which is a polyamide-based resin.
- the obtained aluminum plate-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 4 Comparative Example 4 In Example 1, a brass plate was used instead of PA66 resin, which is a polyamide-based resin.
- the resulting brass plate-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 1 PA66 resin, which is a polyamide-based resin, was not subjected to low-pressure plasma treatment in a helium gas atmosphere or an acetylene gas atmosphere, and PA66 resin that was not subjected to surface modification was used.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 6 Comparative Example 6 In Example 1, the low-pressure plasma treatment in a helium gas atmosphere was not performed.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 7 low-pressure plasma treatment was performed by placing a PA66 resin plate in a parallel vacuum plate in a glass vacuum vessel having two parallel plates made of Al, and a frequency of 40 kHz under a helium gas atmosphere at a pressure of about 30 Pa. After performing low pressure plasma treatment under conditions of 500 W for 1 minute, low pressure plasma treatment was performed by a high frequency method under conditions of acetylene gas atmosphere at a pressure of about 30 Pa, frequency of 40 kHz, output of 300 W, and time of 5 minutes.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 8 polyphenylene sulfide-based resin was used instead of PA66 resin, which is a polyamide-based resin.
- the obtained inert gas-treated polyphenylene sulfide resin-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 6 In Example 1, a natural rubber composition having the following composition was used in place of the EPDM composition.
- Natural rubber composition I 100 parts by weight of natural rubber HAF carbon black (Cabot Japan product) 50 ⁇ Stearic acid (Miyoshi oil and fat product) 2.5 ⁇ Dyna Process Oil (PW-380) 10 ⁇ Zinc oxide (Sakai Chemical Industry Products) 3.5 ⁇ Organic peroxide (Park Mill D) 3 ⁇
- the obtained polyamide-based resin-natural rubber composite had an adhesive strength of 1.5 N / mm and a rubber remaining area ratio of 100%.
- Example 7 polyphenylene sulfide resin was used instead of PA66 resin, which is a polyamide resin, and oxygen gas was used instead of helium gas.
- PA66 resin which is a polyamide resin
- oxygen gas was used instead of helium gas.
- the obtained polyphenylene sulfide resin-natural rubber composite had an adhesive strength of 1.4 N / mm and a rubber remaining area ratio of 100%.
- Example 6 Comparative Example 9 In Example 6, a SUS304 steel plate was used instead of the PA66 resin, which is a polyamide-based resin.
- the obtained SUS304 steel plate-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 10 a sulfur vulcanizable EPDM composition having the following composition was used in place of the peroxide crosslinkable EPDM composition.
- EPDM composition II EPDM (JSR product EP33) 100 parts by weight HAF carbon black (Cabot Japan product) 60 ⁇ Stearic acid (Miyoshi oil and fat products) 1 ⁇ Dyna process oil (Idemitsu Kosan product PW-380) 2 ⁇ Zinc oxide ( ⁇ chemical industry products) 5 ⁇ Vulcanization accelerator (Ouchi Emerging Chemical Industry Noxeller TT) 1 1 Vulcanization accelerator (Ouchi Emerging Chemical Industry Noxeller M) 0.5 ⁇ Sulfur 1.5 ⁇
- JSR product EP33 100 parts by weight HAF carbon black (Cabot Japan product) 60 ⁇ Stearic acid (Miyoshi oil and fat products) 1 ⁇ Dyna process oil (Idemitsu Kosan product PW-380) 2 ⁇ Zinc oxide ( ⁇ chemical industry products) 5 ⁇ Vulcanization accelerator (Ouchi Emerging Chemical Industry No
- the obtained polyamide resin-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 11 a sulfur vulcanizable natural rubber composition having the following composition was used in place of the peroxide crosslinkable EPDM composition.
- Natural rubber composition II 100 parts by weight of natural rubber HAF carbon black (Cabot Japan product) 50 ⁇ Stearic acid (Miyoshi oil and fat product) 2.5 ⁇ Dyna process oil (Idemitsu Kosan product PW-380) 2 ⁇ Zinc oxide (Sakai Chemical Industry Products) 8 ⁇ Vulcanization accelerator (Ouchi Emerging Chemical Industry Noxeller MSA-G) 1) Sulfur 6 ⁇
- the obtained polyamide-based resin-natural rubber composite had an adhesive strength of 0 N / mm and a remaining rubber area ratio of 0%.
- Example 12 a peroxide crosslinkable polar fluororubber composition having the following composition was used in place of the peroxide crosslinkable nonpolar EPDM composition.
- Fluoro rubber (Daikin product Daiel G901) 100 parts by weight MT carbon black 20 ⁇ Magnesium oxide (Kyowa Chemical Product Magnesia # 150) 6 ⁇ Calcium hydroxide 3 ⁇ Triallyl isocyanurate (Nippon Kasei product) 1.8 ⁇ Organic peroxide (NIPPON OIL & PRODUCTS PERHEXA 25B) 0.8 ⁇
- the adhesive strength of the obtained polyamide-based resin-fluororubber composite was 2.3 N / mm, but the area ratio of remaining rubber was 0%.
- Example 13 a peroxide crosslinkable polar hydrogenated nitrile rubber composition having the following composition was used in place of the peroxide crosslinkable nonpolar EPDM composition.
- Hydrogenated nitrile rubber (Nippon Zeon product ZETPOL 1020) 100 parts by weight HAF carbon black (Cabot Japan product) 50 ⁇ Stearic acid (Miyoshi oil and fat product) 0.5 ⁇ Zinc oxide ( ⁇ chemical industry products) 5 ⁇ Vulcanization accelerator (Ouchi Emerging Chemical Industry Noxeller MBZ) 1 ⁇ Organic peroxide (Park Mill D) 3 ⁇
- the obtained polyamide-based resin-hydrogenated nitrile rubber composite had an adhesive strength of 0.3 N / mm and a rubber remaining area ratio of 0%.
- Example 14 Comparative Example 14 In Example 1, the low-pressure plasma treatment in the acetylene gas atmosphere was not performed.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 2.3 N / mm and a rubber remaining area ratio of 0%.
- Example 15 Comparative Example 15 In Example 1, oxygen gas was used instead of helium gas, and low-pressure plasma treatment was not performed in an acetylene gas atmosphere.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 1.5 N / mm and a rubber remaining area ratio of 0%.
- Example 16 polyphenylene sulfide resin (Sustyl PPS GS-30) was used instead of PA66 resin, which is a polyamide resin, and low-pressure plasma treatment was not performed in an acetylene gas atmosphere.
- the obtained polyphenylene sulfide resin-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 4 Comparative Example 17 In Example 4, the low-pressure plasma treatment in the acetylene gas atmosphere was not performed.
- the obtained polyphenylene sulfide resin-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 6 Comparative Example 18 In Example 6, the low-pressure plasma treatment in the acetylene gas atmosphere was not performed.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 0.4 N / mm and a rubber remaining area ratio of 0%.
- Example 6 oxygen gas was used instead of helium gas, and low-pressure plasma treatment was not performed in an acetylene gas atmosphere.
- the obtained polyamide resin-EPDM composite had an adhesive strength of 0.2 N / mm and a rubber remaining area ratio of 0%.
- Example 6 a polyphenylene sulfide-based resin (Sasteel PPS GS-30) was used instead of the PA66 resin, which is a polyamide-based resin, and low-pressure plasma treatment was not performed in an acetylene gas atmosphere.
- the obtained polyphenylene sulfide resin-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- Example 7 Comparative Example 21 In Example 7, the low-pressure plasma treatment in the acetylene gas atmosphere was not performed.
- the obtained polyphenylene sulfide resin-EPDM composite had an adhesive strength of 0 N / mm and a rubber remaining area ratio of 0%.
- the resin-rubber composite according to the present invention is effectively used as automobile parts such as drum seals and side cover seals for transmissions, anti-vibration rubbers, resin rubber laminated hoses and the like.
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Abstract
Description
R1,R2:任意の官能性基
R3,R4:炭化水素基
を添加したゴム組成物とを、接着剤を介することなく積層し、貼り合わせた樹脂ゴム積層体が記載されている。しかしながら、アルコキシシラン化合物が添加されるゴムとしての天然ゴム、エチレンプロピレンジエンゴムなどの例示はみられるものの、その実施例ではイオウ加硫系のもののみしか示されていない。
(1) 樹脂成形品表面のプラズマ処理による重合膜形成は、マイクロ波を用いた低圧プラズマ処理法によって行われ、同じ低圧プラズマ処理であっても高周波を用いて行った場合には、所望の樹脂-ゴム間接着性を確保することができない。
(2) 後記比較例1に示される通り、ポリアミド系樹脂成形品またはポリフェニレンサルファイド系樹脂の代りに、ポリイミド樹脂を用いた場合には、樹脂-EPDM間の接着性を殆ど得ることができない。
(3) ポリアミド系樹脂成形品またはポリフェニレンサルファイド系樹脂の表面に加硫接着されるゴムとしては、パーオキサイド架橋性非極性ゴムが用いられ、他の架橋性基を有する非極性ゴムであるイオウ加硫性非極性ゴムを用いた場合には、後記比較例10および11に示される如く、接着性試験において接着強度は0 N/mmであり、したがってゴム残率は0%となってしまう。
(4) ポリアミド系樹脂成形品またはポリフェニレンサルファイド系樹脂の表面に加硫接着されるゴムとして、極性ゴムであるフッ素ゴムまたは水素化ニトリルゴムを用いた場合には、パーオキサイド架橋性ゴムであっても後記比較例12および13に示される如く、接着性試験において接着強度は0.3~2.3 N/mmであり、ゴム残率は0%となってしまう。
種類 CH 2 /NHCO基数 原料モノマー
46 4 テトラメチレンジアミン-アジピン酸塩
6 5 ε-カプロラクタム、ε-アミノカプロン酸
66 5 ヘキサメチレンジアミン-アジピン酸塩
610 7 ヘキサメチレンジアミン-セバシン酸塩
612 8 ヘキサメチレンジアミン-ドデカン二酸塩
11 10 ω-アミノウンデカン酸
12 11 ω-ラウロラクタム、ω-アミノドデカン酸
ポリアミド系樹脂としてPA66樹脂(東レ製品アミランCM3001-G30)を用い、これを射出成形機を用いて25×60×2mmの平板状に成形した。得られたPA66樹脂平板に、マイクロ波プラズマ装置を用いて、圧力約30Paのヘリウムガス雰囲気下、周波数2.45GHz、出力500W、時間30秒間の条件でマイクロ波方式の低圧プラズマ処理を行った後、圧力約20Paのアセチレンガス雰囲気下、周波数2.45GHz、出力300W、時間1分間の条件でマイクロ波方式の低圧プラズマ処理を行った。
〔EPDM組成物I〕
EPDM(JSR製品EP22) 100重量部
HAFカーボンブラック(キャボットジャパン製品) 50 〃
ステアリン酸(ミヨシ油脂製品) 1 〃
ダイナプロセスオイル(出光興産製品PW-380) 10 〃
酸化亜鉛(堺化学工業製品) 5 〃
有機過酸化物(日本油脂製品パークミルD) 3 〃
実施例1において、炭化水素系モノマーとして、アセチレンガスの代わりにエチレンガスを用い、炭化水素系モノマーガスを用いたプラズマ処理時間を1分間から2分間に変更してマイクロ波方式の低圧プラズマ処理を行った。得られたポリアミド系樹脂-EPDM複合体の接着強度は3.9N/mm、ゴム残り面積率は100%であった。
実施例1において、炭化水素系モノマーとして、アセチレンガスの代わりにメタンガスを用い、炭化水素系モノマーガスを用いたプラズマ処理の出力を300Wから500Wに、また処理時間を1分間から6分間に変更してマイクロ波方式の低圧プラズマ処理を行った。得られたポリアミド系樹脂-EPDM複合体の接着強度は3.9N/mm、ゴム残り面積率は100%であった。
実施例1において、ポリアミド系樹脂であるPA66樹脂の代わりにポリフェニレンサルファイド系樹脂(東ソー製品サスティールPPS GS-30)が、またヘリウムガスの代わりに酸素ガスが用いられた。得られたポリフェニレンサルファイド系樹脂-EPDM複合体の接着強度は3.8N/mm、ゴム残り面積率は100%であった。
実施例1において、ポリアミド系樹脂としてPA66樹脂の代わりにPA6T(三井化学製品アーレンA335)が用いられた。得られたポリアミド系樹脂-EPDM複合体の接着強度は4.3N/mm、ゴム残り面積率は100%であった。
実施例1において、ポリアミド系樹脂であるPA66樹脂の代わりにポリイミド樹脂(三井化学製品アーレンJGN3030)が用いられた。得られたポリイミド系樹脂-EPDM複合体の接着強度は1.1N/mm、ゴム残り面積率は10%であった。
実施例1において、ポリアミド系樹脂であるPA66樹脂の代わりにSUS304鋼板が用いられた。得られたSUS304鋼板-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例1において、ポリアミド系樹脂であるPA66樹脂の代わりにアルミニウム板が用いられた。得られたアルミニウム板-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例1において、ポリアミド系樹脂であるPA66樹脂の代わりに真鍮板が用いられた。得られた真鍮板-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例1において、ポリアミド系樹脂であるPA66樹脂に対して、ヘリウムガス雰囲気下およびアセチレンガス雰囲気下における低圧プラズマ処理がいずれも行われず、表面改質が施されていないPA66樹脂が用いられた。得られたポリアミド系樹脂-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例1において、ヘリウムガス雰囲気下における低圧プラズマ処理が行われなかった。得られたポリアミド系樹脂-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例1において、低圧プラズマ処理が、2枚のAl製平行平板を備えたガラス製真空容器内にPA66樹脂平板を平行平板中に配置し、圧力約30Paのヘリウムガス雰囲気下、周波数40kHz、出力500W、時間1分間の条件で低圧プラズマ処理を行った後、圧力約30Paのアセチレンガス雰囲気下、周波数40kHz、出力300W、時間5分間の条件で高周波方式により低圧プラズマ処理が行われた。得られたポリアミド系樹脂-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例1において、ポリアミド系樹脂であるPA66樹脂の代わりにポリフェニレンサルファイド系樹脂が用いられた。得られた不活性ガス処理ポリフェニレンサルファイド系樹脂-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例1において、EPDM組成物の代わりに下記配合の天然ゴム組成物が用いられた。
〔天然ゴム組成物I〕
天然ゴム 100重量部
HAFカーボンブラック(キャボットジャパン製品) 50 〃
ステアリン酸(ミヨシ油脂製品) 2.5 〃
ダイナプロセスオイル(PW-380) 10 〃
酸化亜鉛(堺化学工業製品) 3.5 〃
有機過酸化物(パークミルD) 3 〃
実施例6において、ポリアミド系樹脂であるPA66樹脂の代わりにポリフェニレンサルファイド系樹脂が、またヘリウムガスの代わりに酸素ガスが用いられた。得られたポリフェニレンサルファイド系樹脂-天然ゴム複合体の接着強度は1.4N/mm、ゴム残り面積率は100%であった。
実施例6において、ポリアミド系樹脂であるPA66樹脂の代わりにSUS304鋼板が用いられた。得られたSUS304鋼板-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例1において、パーオキサイド架橋性EPDM組成物の代わりに、下記配合のイオウ加硫性EPDM組成物が用いられた。
〔EPDM組成物II〕
EPDM(JSR製品EP33) 100重量部
HAFカーボンブラック(キャボットジャパン製品) 60 〃
ステアリン酸(ミヨシ油脂製品) 1 〃
ダイナプロセスオイル(出光興産製品PW-380) 2 〃
酸化亜鉛(堺化学工業製品) 5 〃
加硫促進剤(大内新興化学工業製品ノクセラーTT) 1 〃
加硫促進剤(大内新興化学工業製品ノクセラーM) 0.5 〃
イオウ 1.5 〃
実施例1において、パーオキサイド架橋性EPDM組成物の代わりに、下記配合のイオウ加硫性天然ゴム組成物が用いられた。
〔天然ゴム組成物II〕
天然ゴム 100重量部
HAFカーボンブラック(キャボットジャパン製品) 50 〃
ステアリン酸(ミヨシ油脂製品) 2.5 〃
ダイナプロセスオイル(出光興産製品PW-380) 2 〃
酸化亜鉛(堺化学工業製品) 8 〃
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 〃
実施例1において、パーオキサイド架橋性非極性EPDM組成物の代わりに、下記配合のパーオキサイド架橋性極性フッ素ゴム組成物が用いられた。
〔フッ素ゴム組成物〕
フッ素ゴム(ダイキン製品ダイエルG901) 100重量部
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 〃
トリアリルイソシアヌレート(日本化成製品) 1.8 〃
有機過酸化物(日本油脂製品パーヘキサ25B) 0.8 〃
実施例1において、パーオキサイド架橋性非極性EPDM組成物の代わりに、下記配合のパーオキサイド架橋性極性水素化ニトリルゴム組成物が用いられた。
〔水素化ニトリルゴム組成物〕
水素化ニトリルゴム(日本ゼオン製品ZETPOL 1020) 100重量部
HAFカーボンブラック(キャボットジャパン製品) 50 〃
ステアリン酸(ミヨシ油脂製品) 0.5 〃
酸化亜鉛(堺化学工業製品) 5 〃
加硫促進剤(大内新興化学工業製品ノクセラーMBZ) 1 〃
有機過酸化物(パークミルD) 3 〃
実施例1において、アセチレンガス雰囲気下における低圧プラズマ処理が行われなかった。得られたポリアミド系樹脂-EPDM複合体の接着強度は2.3 N/mm、ゴム残り面積率は0%であった。
実施例1において、ヘリウムガスの代わりに酸素ガスが用いられ、アセチレンガス雰囲気下における低圧プラズマ処理が行われなかった。得られたポリアミド系樹脂-EPDM複合体の接着強度は1.5 N/mm、ゴム残り面積率は0%であった。
実施例1において、ポリアミド系樹脂であるPA66樹脂の代わりにポリフェニレンサルファイド系樹脂(サスティールPPS GS-30)が用いられ、アセチレンガス雰囲気下における低圧プラズマ処理が行われなかった。得られたポリフェニレンサルファイド系樹脂-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例4において、アセチレンガス雰囲気下における低圧プラズマ処理が行われなかった。得られたポリフェニレンサルファイド系樹脂-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例6において、アセチレンガス雰囲気下における低圧プラズマ処理が行われなかった。得られたポリアミド系樹脂-EPDM複合体の接着強度は0.4 N/mm、ゴム残り面積率は0%であった。
実施例6において、ヘリウムガスの代わりに酸素ガスが用いられ、アセチレンガス雰囲気下における低圧プラズマ処理が行われなかった。得られたポリアミド系樹脂-EPDM複合体の接着強度は0.2 N/mm、ゴム残り面積率は0%であった。
実施例6において、ポリアミド系樹脂であるPA66樹脂の代わりにポリフェニレンサルファイド系樹脂(サスティールPPS GS-30)が用いられ、アセチレンガス雰囲気下における低圧プラズマ処理が行われなかった。得られたポリフェニレンサルファイド系樹脂-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
実施例7において、アセチレンガス雰囲気下における低圧プラズマ処理が行われなかった。得られたポリフェニレンサルファイド系樹脂-EPDM複合体の接着強度は0 N/mm、ゴム残り面積率は0%であった。
Claims (5)
- ポリアミド系樹脂成形品の表面を不活性ガスを用いて、またはポリフェニレンサルファイド系樹脂成形品の表面を活性ガスを用いてマイクロ波方式の低圧プラズマ処理を行って活性化した後、炭化水素系モノマーを用いたマイクロ波方式の低圧プラズマ処理を行い、ラジカルを有する重合膜を形成せしめた樹脂成形品に、ゴム層を形成するパーオキサイド架橋性非極性ゴム組成物を、接着剤を介さずに直接加硫接着させた樹脂ゴム複合体。
- ポリアミド系樹脂成形品表面の活性化に用いられる不活性ガスがヘリウムガス、アルゴンガスまたは窒素ガスである請求項1記載の樹脂ゴム複合体。
- ポリフェニレンサルファイド系樹脂成形品表面の活性化に用いられる活性ガスが酸素ガスまたは水素ガスである請求項1記載の樹脂ゴム複合体。
- ラジカルを有する重合膜の形成に用いられる炭化水素系モノマーが、アセチレン、エチレンまたはメタンである請求項1記載の樹脂ゴム複合体。
- パーオキサイド架橋性非極性ゴムが、パーオキサイド架橋性のEPDM、天然ゴム、エチレン・プロピレンゴム、ブタジエンゴムまたはスチレンブタジエンゴムである請求項1記載の樹脂ゴム複合体。
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| DE112015001524.8T DE112015001524T5 (de) | 2014-03-28 | 2015-03-12 | Harz-Kautschuk-Verbundmaterial |
| US15/128,562 US20170106630A1 (en) | 2014-03-28 | 2015-03-12 | Resin-rubber composite |
| JP2015536338A JP5874865B1 (ja) | 2014-03-28 | 2015-03-12 | 樹脂ゴム複合体の製造法 |
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| JP2014-068719 | 2014-03-28 | ||
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| PCT/JP2015/057259 Ceased WO2015146602A1 (ja) | 2014-03-28 | 2015-03-12 | 樹脂ゴム複合体 |
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| Country | Link |
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| US (1) | US20170106630A1 (ja) |
| JP (1) | JP5874865B1 (ja) |
| DE (1) | DE112015001524T5 (ja) |
| WO (1) | WO2015146602A1 (ja) |
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| EP3793525A4 (en) | 2018-05-16 | 2022-02-16 | Emory University | Palladium hyaluronic acid particles and methods of managing cancer or angiogenic conditions |
| CN109263220B (zh) * | 2018-11-02 | 2024-05-07 | 浙江锂盾储能材料技术有限公司 | 非极性物理锚固法聚合物软包电池铝塑膜及其制造方法 |
Citations (3)
| 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 |
| JPS60197740A (ja) * | 1984-03-21 | 1985-10-07 | Idemitsu Petrochem Co Ltd | 積層体の製造方法 |
| JPH03262636A (ja) * | 1990-03-14 | 1991-11-22 | Bridgestone Corp | ゴム系複合材料の製造方法 |
-
2015
- 2015-03-12 JP JP2015536338A patent/JP5874865B1/ja active Active
- 2015-03-12 DE DE112015001524.8T patent/DE112015001524T5/de not_active Withdrawn
- 2015-03-12 WO PCT/JP2015/057259 patent/WO2015146602A1/ja not_active Ceased
- 2015-03-12 US US15/128,562 patent/US20170106630A1/en not_active Abandoned
Patent Citations (3)
| 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 |
| JPS60197740A (ja) * | 1984-03-21 | 1985-10-07 | Idemitsu Petrochem Co Ltd | 積層体の製造方法 |
| JPH03262636A (ja) * | 1990-03-14 | 1991-11-22 | Bridgestone Corp | ゴム系複合材料の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170106630A1 (en) | 2017-04-20 |
| JP5874865B1 (ja) | 2016-03-02 |
| JPWO2015146602A1 (ja) | 2017-04-13 |
| DE112015001524T5 (de) | 2016-12-22 |
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