WO2006001385A1 - ゴム補強用コードおよびその製造方法ならびにそれを用いたゴム製品 - Google Patents
ゴム補強用コードおよびその製造方法ならびにそれを用いたゴム製品 Download PDFInfo
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- WO2006001385A1 WO2006001385A1 PCT/JP2005/011643 JP2005011643W WO2006001385A1 WO 2006001385 A1 WO2006001385 A1 WO 2006001385A1 JP 2005011643 W JP2005011643 W JP 2005011643W WO 2006001385 A1 WO2006001385 A1 WO 2006001385A1
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- rubber
- reinforcing cord
- coating
- fiber
- cord
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
- D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
- D07B1/04—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics with a core of fibres or filaments arranged parallel to the centre line
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
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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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G1/00—Driving-belts
- F16G1/28—Driving-belts with a contact surface of special shape, e.g. toothed
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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
- C08J2321/00—Characterised by the use of unspecified rubbers
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2024—Strands twisted
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2041—Strands characterised by the materials used
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2042—Strands characterised by a coating
- D07B2201/2044—Strands characterised by a coating comprising polymers
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2042—Strands characterised by a coating
- D07B2201/2045—Strands characterised by a coating comprising multiple layers
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/2046—Polyamides, e.g. nylons
- D07B2205/205—Aramides
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/2075—Rubbers, i.e. elastomers
- D07B2205/2082—Rubbers, i.e. elastomers being of synthetic nature, e.g. chloroprene
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3003—Glass
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3007—Carbon
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/202—Environmental resistance
- D07B2401/2025—Environmental resistance avoiding corrosion
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/202—Environmental resistance
- D07B2401/2035—High temperature resistance
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2076—Power transmissions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
Definitions
- Rubber reinforcing cord manufacturing method thereof, and rubber product using the same
- the present invention relates to a rubber reinforcing cord, a method for producing the same, and a rubber product using the same.
- a toothed belt used for driving a camshaft of an internal combustion engine of an automobile is required to have a high degree of dimensional stability in order to maintain appropriate timing.
- rubber belts used for driving injection pumps and power transmission for industrial machinery are required to have strength and elasticity to withstand high loads and high bending.
- reinforcing cords containing reinforcing fibers were sometimes embedded in the matrix rubber of these rubber products.
- a mixed solution (RFL solution) of resorcin-formalin condensate and latex is generally used to protect the surface of the reinforcing fiber.
- RFL solution is applied to the untwisted or untwisted fibers.
- a plurality of lower twisted fibers are bundled and subjected to an upper twist.
- another coating is formed to improve adhesion. In this way, the reinforcing cord is manufactured.
- the present invention provides a rubber reinforcing cord capable of suppressing a decrease in strength of a rubber product even under conditions of high temperature and high bending resistance to water and oil, a manufacturing method thereof, and a rubber product using the same
- One of the purposes is to provide
- the rubber reinforcing cord of the present invention is a rubber reinforcing cord for reinforcing a rubber product, comprising a plurality of strands, and the strands are a plurality of bundled fibers. And a coating formed so as to cover the bundled plurality of fibers, the plurality of strands being in close contact with each other via the coating, and the coating being made of a material that is cross-linked by heat treatment Including.
- the rubber product of the present invention includes a rubber portion and a rubber reinforcing cord embedded in the rubber portion, and the rubber reinforcing cord is the rubber reinforcing cord of the present invention.
- the method of the present invention for producing a rubber reinforcing cord includes: (i) a strand including a plurality of bundled fibers and a coating formed so as to cover the plurality of bundled fibers And (ii) a step of bringing the plurality of strands into close contact with each other via the coating by twisting the plurality of strands, wherein the coating is made of a material that is cross-linked by heat treatment. Including.
- the fibers in the strands and the strands are bonded to each other, so that no gap is generated between the fibers even when bent. Therefore, it is possible to obtain a rubber-reinforcing cord that hardly deteriorates in strength even under conditions of high temperature and high bending resistance to water and oil. Further, in the rubber product using the rubber reinforcing cord of the present invention, it is possible to suppress the peeling between the matrix rubber and the cord of the rubber product and the peeling inside the cord. Therefore, according to the present invention, a rubber product having excellent bending fatigue resistance, particularly bending fatigue resistance in the presence of water or oil. Is obtained.
- FIG. 1 is a partially exploded perspective view schematically showing an example of a rubber product of the present invention.
- FIG. 2 is a cross-sectional view schematically showing an example of a strand included in the rubber reinforcing cord of the present invention.
- FIG. 3 is a cross-sectional view schematically showing an example of a rubber reinforcing cord according to the present invention.
- the rubber reinforcing cord of the present invention is a cord for reinforcing a rubber product.
- This code comprises a plurality of strands.
- the strand includes a plurality of bundled fibers and a coating formed so as to cover the plurality of bundled fibers.
- the plurality of strands are in close contact with each other through the coating.
- membrane contains the material for adhere
- the coating includes a material that is crosslinked by heat treatment.
- the bundled fibers may be twisted.
- a material to be crosslinked by heat treatment a material containing rubber and a crosslinking agent can be used.
- a coating agent can be formed on the fiber surface by applying a treatment agent containing rubber and a crosslinking agent to the fiber surface and drying.
- the coating includes a crosslinkable material and a crosslinking agent
- the coating includes rubber and a crosslinking agent
- the rubber is crosslinked by heat treatment.
- adjacent strands are bonded to each other via a film existing on the surface of the strand.
- chemical bonds also occur at the interface between the coatings.
- Heat treatment for cross-linking may be performed after the strands are brought into close contact with each other before the reinforcing cord is embedded in the rubber product, or after the reinforcing cord is embedded in the rubber product. You may heat-process. That is, the reinforcing cord of the present invention is subjected to heat treatment. The strands may be bonded to each other.
- Examples of the rubber contained in the coating include butadiene styrene copolymer, dicarboxyxenorei butadiene styrene copolymer, vinylol pyridine butadiene styrene terpolymer, black-prene, butadiene rubber, chlorosulfonated polyethylene, and alitrononitrile butadiene.
- Examples include copolymers and H-NBR rubber.
- black-mouthed sulfonated polyethylene and hydrogenated-tolyl rubber (H-NBR rubber) have the advantage of high oil resistance and high water resistance that resist bending fatigue at high temperatures.
- the film is at least selected from chlorosulfone polyethylene and hydrogenated-tolyl rubber force.
- cross-linking agent vulcanizing agent
- a quinone dioxime-based cross-linking agent such as p-quinone dioxime
- meta acrylate-type crosslinking agents such as a lauryl meta acrylate and a methyl methacrylate.
- aryl crosslinking agents such as DAF (diaryl fumarate), DAP (diaryl phthalate), TAC (triaryl cyanurate) and TAIC (triaryl isocyanurate) may be used.
- maleimide crosslinkers such as bismaleimide, phenylmaleimide or N, N, 1m-phenylene-dialemaleimide
- a diisocyanate compound organic diisocyanate
- an aromatic-troso compound may be used.
- Sulfur and other crosslinking agents may also be used.
- maleimide crosslinking agents it is preferable to use maleimide crosslinking agents.
- a commercially available adhesive containing rubber and a crosslinking agent may be used as a material for forming the film.
- An example of such an adhesive is Chemlock 402 (manufactured by Road Corporation).
- the total content of the rubber and the crosslinking agent in the coating is 50% by mass or more.
- the coating can be formed by a processing agent (adhesive) mainly composed of rubber and a crosslinking agent.
- main “Component” means that the proportion of the component in the composition component (excluding the solvent) is 50% by mass or more.
- the fiber in the reinforcing cord of the present invention, may also have a plurality of bundled filament forces.
- the treatment agent penetrates between the filaments when the treatment agent is applied.
- the composition (including rubber) constituting the coating penetrates between the filaments, and some or all of the filaments are bonded together.
- the coating formed on the strand surface may contain a filler.
- the filler may be an organic filler or an inorganic filler.
- the filler include carbon black and silica.
- carbon black is preferably used because it increases the cohesive strength of the treatment agent (adhesive).
- the coating may also contain plasticizers, anti-aging agents, metal oxides and cross-linking aids, and other additives to increase adhesion and improve stability.
- the thickness of the coating or the ratio of the coating to the entire cord is determined according to the characteristics required for the reinforcing cord and the type of reinforcing fiber.
- the ratio of the coating to the entire cord is in the range of 1.0% by mass to 30.0% by mass.
- the reinforcing cord of the present invention may include an underlayer formed between the reinforcing fiber and the coating.
- the underlayer may be formed of a pretreatment agent (hereinafter sometimes referred to as “RFL liquid”) containing a resorcin formaldehyde condensate (resorcin formalin condensate) and rubber latex.
- RFL liquid a pretreatment agent
- resorcin formaldehyde condensate resorcin formalin condensate
- resorcin-type RFL liquid obtained by reacting resorcin and formaldehyde in the presence of an alkaline catalyst such as alkali hydroxide hydroxide may be used.
- an alkaline catalyst such as alkali hydroxide hydroxide
- a commercially available novolak type RFL solution may be used.
- butadiene styrene copolymer latex, dicarboxylated butadiene styrene copolymer latex, bullpyridine butadiene styrene terpolymer latex, black-prene latex, butadiene rubber latex, chlorosulfonated polyethylene latex Tas, acrylonitrile monobutadiene copolymer latex, H-NBR latex and the like can be used.
- H-NBR latex and chlorosulfonated polyethylene latex are preferably used.
- the base layer may be formed of other materials.
- the type and shape of the reinforcing fiber used in the reinforcing cord of the present invention are not particularly limited as long as it is a fiber that can enhance the shape stability and strength of the rubber product.
- glass fiber, polybulal alcohol fiber typified by vinylon fiber, polyester fiber, polyamide fiber such as nylon-charamide fiber (aromatic polyamide), carbon fiber, or polyparaphenylene-benzobisoxazole (PBO) A fiber etc. can be used.
- fibers having excellent dimensional stability, tensile strength and modulus for example, glass fiber, aramid fiber, polyparaphenylene benzobisoxazole fiber, and carbon fiber should be used.
- fibers having excellent dimensional stability, tensile strength and modulus for example, glass fiber, aramid fiber, polyparaphenylene benzobisoxazole fiber, and carbon fiber should be used.
- a typical example of the reinforcing cord of the present invention is a coating in which the reinforcing fiber is glass fiber and the coating includes hydrogenated-tolyl rubber and a maleimide-based crosslinking agent.
- the coating includes hydrogenated-tolyl rubber and a maleimide-based crosslinking agent.
- an underlayer formed of an RFL liquid may be disposed between the glass fiber and the coating.
- the strand may be twisted.
- a plurality of strands may be twisted.
- the number of strands is not particularly limited, for example, it may be in the range of 10 to 1200 or less.
- the number of twists of the lower twist and the upper twist is not particularly limited, and is usually in the range of 0.1 to 8.0 times Z25mm, and preferably 1.5 to 3.0 times Z25mm.
- the twisting force can be increased by a general method using a flyer single twisting machine or a ring twisting machine.
- the directions of the lower twist and the upper twist may be the same or different. Bending fatigue resistance can be improved by making the direction of the lower twist and the upper twist the same direction.
- the reinforcing cord of the present invention may have a film formed on its surface for improving adhesion to a rubber product.
- a film formed on its surface for improving adhesion to a rubber product.
- the component of the second coating film only needs to improve the adhesion with the matrix rubber.
- halogen-containing polymer adhesives for example, Chemlock manufactured by Road Corporation
- An adhesive containing H—NBR rubber and a crosslinking agent for example, a maleimide crosslinking agent
- the reinforcing cord manufactured by the manufacturing method of the present invention constitutes an example of the reinforcing cord of the present invention.
- the method of the present invention includes the step (i) of forming a strand including a plurality of bundled fibers and a coating formed to cover the plurality of bundled fibers.
- the coating includes a material for bonding the strands, specifically, a material that is crosslinked by heat treatment.
- This step (i) may include a step of forming a film by applying a treatment agent containing a material that is cross-linked by heat treatment to a plurality of bundled fibers and then drying.
- the step (i) may include a step of forming a film by applying a treatment agent containing rubber (usually rubber latex) and a crosslinking agent to a plurality of bundled fibers and then drying.
- a processing agent contains the component for forming a film, and a solvent.
- a coating film is formed by applying the treatment agent and then removing the solvent.
- the components contained in the treatment agent for example, rubber latex rubber, cross-linking agent and filler, the above-mentioned substances can be used.
- the amount of rubber or crosslinking agent contained in the treatment agent is adjusted so that the above-described film is formed.
- This treating agent usually does not contain a resorcinol-formaldehyde condensate.
- Water or an organic solvent can be used as the solvent.
- a treatment agent obtained by dissolving or dispersing the rubber latex and the crosslinking agent in water may be used.
- a plasticizer, an anti-aging agent, a metal oxide, a crosslinking aid, a filler and the like may be added in order to increase the adhesion of the film or improve the stability.
- the coating is formed by applying a treatment agent to the reinforcing fibers and drying.
- the strand can be formed, for example, by a method of applying and drying a treatment agent to a plurality of bundled and twisted fibers, or a method of bundling a plurality of fibers and applying a treatment agent and drying and then twisting the fibers. .
- the number of twists of the lower twist is as described above.
- treatment agent After the reinforcing fibers are soaked in the bathtub containing, they are dried in a drying oven to remove the solvent and form a film.
- the drying conditions for removing the solvent are not limited, but it is necessary to avoid drying under conditions that allow the reaction of the crosslinking agent in the coating to proceed completely. Therefore, when drying is performed at a relatively high temperature (for example, 80 ° C or higher), it is preferable to set the drying time to a short time (for example, 5 minutes or less). For example, when the atmosphere is 150 ° C or lower, the drying time may be 5 minutes or shorter. In one example, drying may be performed for 0.1 to 2 minutes in an atmosphere of 80 ° C to 280 ° C.
- the plurality of strands are brought into close contact with each other through the film by twisting the plurality of strands (step (ii)).
- the coatings are flexible and the coatings adhere to each other.
- the number of twists of the strand of the strand is as described above.
- the rubber composition (coating) by filling the space between the fibers with the rubber composition (coating), it is possible to prevent a gap from occurring in and between the strands.
- the film formed in the step (i) is present on the surface of the strand. For this reason, the bonding between the strands proceeds during the heat treatment during twisting and during the heat treatment after Z or twisting. This heat treatment may be performed before the reinforcing cord is embedded in the rubber product, or may be performed after the reinforcing cord is embedded in the rubber product.
- Preferable conditions for the heat treatment are different depending on the material of the coating.
- the heat treatment is performed at a temperature and a time at which crosslinking proceeds. In a typical example, heat treatment is performed at 150 ° C. for 20 minutes to proceed with crosslinking.
- the production method of the present invention may include a step of applying a pretreatment agent containing resorcin-formaldehyde condensate and rubber latex to the surface of the fiber (reinforcing fiber) before step (i).
- a pretreatment agent containing resorcin-formaldehyde condensate and rubber latex
- the pretreatment agent the above-described RFL solution can be used. Usually, after applying the pretreatment agent, drying and Z or heat treatment is performed. This pretreatment forms an underlayer.
- the pretreatment agent is not limited to the RFL solution, and other pretreatment agents may be used.
- the RFL solution is applied to the surface of the bundle of reinforcing fibers and then dried or heat-treated. An underlayer is formed, and then a film containing rubber and a crosslinking agent is formed on the underlayer.
- the production method of the present invention may include a step of forming the above-described second film on the surface of a plurality of bundled strands.
- the multiple strands are preferably twisted.
- the second film can be formed by applying and drying an adhesive that is a material for the second film.
- the rubber product of the present invention includes a rubber part and a rubber reinforcing cord embedded in the rubber part.
- the rubber reinforcing cord is the rubber reinforcing cord of the present invention.
- Means for embedding the rubber reinforcing cord in the matrix rubber of the rubber product is not particularly limited, and known means can be applied. If the rubber reinforcing cord of the present invention is also vulcanized (crosslinked) at the same time as vulcanizing (crosslinking) the rubber product, the integrity of the reinforcing cord and the rubber product can be further enhanced. The process at the time of manufacturing the cord can be simplified.
- the rubber product thus obtained has both high heat resistance derived from the characteristics of the matrix rubber, high strength by embedding a rubber reinforcing cord, and high bending fatigue resistance. Therefore, this rubber product can be applied to various uses and is particularly suitable for uses such as timing belts for vehicle engines.
- the present invention relates to a method for producing a rubber product.
- the cord for rubber reinforcement is manufactured by the manufacturing method of the present invention.
- heat treatment is not performed so that crosslinking of the crosslinking agent in the coating proceeds sufficiently.
- the rubber reinforcing cord is embedded in a rubber part (rubber product) containing rubber and a crosslinking agent.
- heat treatment is performed under the condition that the reaction of the crosslinking agent (vulcanizing agent) proceeds sufficiently, and the rubber of the rubber reinforcing cord film and the rubber of the rubber part of the rubber product are simultaneously crosslinked.
- FIG. 1 shows an exploded perspective view of the toothed belt 10.
- the toothed belt 10 includes a rubber part 11 and a plurality of cords 12 embedded in the rubber part 11.
- the rubber part 11 is made of rubber or rubber and other materials.
- the cord 12 is a reinforcing cord according to the present invention, and is arranged in parallel to the moving direction of the toothed belt 10.
- known members can be applied.
- the rubber product of the present invention is a rubber product reinforced with a rubber reinforcing cord, and may be, for example, a timing belt!
- glass fibers were prepared by focusing 200 glass filaments (E glass composition, average diameter 9 ⁇ m). Three glass fibers were drawn and coated with the water-based adhesive shown in [Table 1] below, followed by drying for 1 minute in a drying oven set at 150 ° C. In this way, a strand was formed.
- Glass fiber 21 consists of a number of filaments.
- a film 22 is formed so as to cover the surface of the bundle of three glass fibers 21.
- the three glass fibers 21 are bonded by a coating 22.
- the strand thus obtained was burned down twice at a rate of Z25mm. Then, 11 strands were twisted, and twisted twice at a rate of Z25mm. The ratio of the film in the cord thus obtained was 20% by mass.
- a second coating for improving the adhesion to the matrix rubber was formed on the cord. Specifically, a halogen-containing polymer adhesive (Chemlock 402: manufactured by Road Corporation) was applied to the cord and then dried in a drying oven at 150 ° C. for 1 minute. In this way, a rubber reinforcing cord was obtained.
- a cross-sectional view of the formed cord 30 is schematically shown in FIG. The plurality of strands 20 are bonded to each other by a coating 22. A second film 31 is formed on the surface of the cord 30.
- the reinforcing cord was sandwiched between two test pieces so that the reinforcing cord was parallel to the longitudinal direction of the rubber piece, and heated at 150 ° C for 20 minutes to be bonded.
- the test piece thus obtained was pulled in the longitudinal direction with a tensile tester, and the peel strength between the matrix rubber and the reinforcing fiber was measured. In addition, by visually observing the fracture surface of the test piece, it is a “rubber fracture” in which fracture occurs with the reinforcing fiber and the matrix rubber adhered, or peeling occurs at the interface between the matrix rubber and the reinforcing fiber. It was confirmed whether it was the “interfacial debonding” that occurred.
- the reinforcing cord was subjected to 10,000 bending tests using a bending tester, and the tensile strength before and after the test was measured. Furthermore, a bending test was performed in the same manner even when the reinforcing cord was immersed in oil. Then, the ratio of the tensile strength after the bending test to the tensile strength before the bending test, that is, the retention ratio of the tensile strength was calculated. These evaluation results are listed in [Table 5] below.
- Example 2 a reinforcing cord was produced in the same manner as in Example 1 except that the fiber surface was pretreated before the coating was formed.
- the RFL solution water-based adhesive
- Example 3 the RFL solution (water-based adhesive) shown in [Table 3] below is applied to three aligned glass fibers (the same glass fibers as in Example 1) and then 2 at 240 ° C. Performed by heat treatment for 5 minutes. [0058] [Table 3]
- Example 2 The reinforcing cords produced in Example 2 were also evaluated for adhesion and bending resistance in the same manner as in Example 1. The evaluation results are shown in [Table 5] below.
- a reinforcing cord was produced in the same manner as in Example 2 except that the treatment agent was changed and the second film was not formed.
- a halogen-containing polymer-based adhesive (Chemlock 402 (manufactured by Road Corporation)) was used as a treating agent.
- Example 3 The reinforcing cord produced in Example 3 was evaluated for adhesion and bending resistance in the same manner as in Example 1. The evaluation results are shown in [Table 5] below.
- a reinforcing cord was produced in the same manner as in Example 1 except that the treatment agent for forming the coating and the drying conditions of the treatment agent were changed.
- a coating agent RTL solution having the components shown in [Table 4] was applied to glass fiber, and then heat-treated at 230 ° C. to form a film (underlayer).
- the cords of Examples 1 to 3 in which the strands were bonded to each other exhibited high bending resistance.
- the cords of Examples 1 to 3 exhibited high bending resistance even when immersed in oil.
- the cords of Examples 2 and 3 that had been pretreated before the coating was formed were particularly strong in ordinary bending resistance.
- the present invention can be applied to various rubber products and rubber reinforcing cords used therefor.
- the present invention is particularly preferably used for a timing belt of a vehicle engine that requires high bending resistance and reliability.
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- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Reinforced Plastic Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020067027587A KR101181128B1 (ko) | 2004-06-28 | 2005-06-24 | 고무 보강용 코드 및 그 제조 방법 및 그것을 이용한 고무제품 |
BRPI0512817A BRPI0512817B1 (pt) | 2004-06-28 | 2005-06-24 | fibra para reforçar borracha, método para fabricar a fibra, e produto de borracha utilizando tal fibra |
CA2589578A CA2589578C (en) | 2004-06-28 | 2005-06-24 | Cord for reinforcing rubber, method of manufacturing the cord, and rubber product using the cord |
CN2005800196779A CN1969083B (zh) | 2004-06-28 | 2005-06-24 | 橡胶加强用软线及其制造方法以及使用该软线的橡胶产品 |
JP2006528635A JP4460581B2 (ja) | 2004-06-28 | 2005-06-24 | ゴム補強用コードおよびその製造方法ならびにそれを用いたゴム製品 |
US11/629,397 US9593445B2 (en) | 2004-06-28 | 2005-06-24 | Cord for reinforcing rubber, method of manufacturing the cord, and rubber product using the cord |
EP05765123.4A EP1762654B1 (en) | 2004-06-28 | 2005-06-24 | Cord for reinforcing rubber, method of manufacturing the cord, and rubber product using the cord |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-190346 | 2004-06-28 | ||
JP2004190346 | 2004-06-28 |
Publications (1)
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WO2006001385A1 true WO2006001385A1 (ja) | 2006-01-05 |
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PCT/JP2005/011643 WO2006001385A1 (ja) | 2004-06-28 | 2005-06-24 | ゴム補強用コードおよびその製造方法ならびにそれを用いたゴム製品 |
Country Status (8)
Country | Link |
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US (1) | US9593445B2 (ja) |
EP (1) | EP1762654B1 (ja) |
JP (1) | JP4460581B2 (ja) |
KR (1) | KR101181128B1 (ja) |
CN (1) | CN1969083B (ja) |
BR (1) | BRPI0512817B1 (ja) |
CA (1) | CA2589578C (ja) |
WO (1) | WO2006001385A1 (ja) |
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WO2008123066A1 (ja) * | 2007-03-23 | 2008-10-16 | Toho Tenax Co., Ltd. | ゴム補強用炭素繊維コードおよびその製造方法 |
JP2009526924A (ja) * | 2006-02-16 | 2009-07-23 | エヌ・ジー・エフ ヨーロッパ リミテッド | 押出又は成形によってゴム物品を形成するための方法、コーティングラテックス及び補強用コード |
JP2010138535A (ja) * | 2008-11-13 | 2010-06-24 | Central Glass Co Ltd | ガラス繊維被覆用塗布液およびそれを用いたゴム補強用ガラス繊維 |
JP2010222734A (ja) * | 2009-03-24 | 2010-10-07 | Central Glass Co Ltd | ゴム補強用ガラス繊維およびそれを用いた伝動ベルト |
WO2012098910A1 (ja) * | 2011-01-21 | 2012-07-26 | 日本ゼオン株式会社 | ゴム補強用コード及びそれを用いたゴム製品 |
JP2013002002A (ja) * | 2011-06-10 | 2013-01-07 | Nippon Sheet Glass Co Ltd | ゴム製品を補強するための補強用コードおよびそれを用いたゴム製品 |
JP2014070296A (ja) * | 2012-09-28 | 2014-04-21 | Toyo Tire Cord Kk | ゴム補強用炭素繊維コードおよびその製造方法 |
WO2014119280A1 (ja) | 2013-01-30 | 2014-08-07 | 日本板硝子株式会社 | ゴム製品を補強するための炭素繊維コードおよびそれを用いたゴム製品 |
WO2015098105A1 (ja) * | 2013-12-25 | 2015-07-02 | 日本板硝子株式会社 | ゴム補強用コードを形成するための水性処理剤、これを用いて形成されたゴム補強用コードおよびその製造方法、および、このゴム補強用コードを用いたゴム製品 |
JP2018119227A (ja) * | 2017-01-24 | 2018-08-02 | 帝人株式会社 | ゴム補強用炭素繊維コード |
WO2018198778A1 (ja) | 2017-04-27 | 2018-11-01 | 日本板硝子株式会社 | ゴム補強用コード及びそれを用いたゴム製品 |
WO2020079917A1 (ja) * | 2018-10-17 | 2020-04-23 | バンドー化学株式会社 | 歯付ベルト |
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JP6603008B1 (ja) * | 2018-03-19 | 2019-11-06 | 日本板硝子株式会社 | ゴム補強用コード及びその製造方法、並びにゴム製品 |
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JP2012149375A (ja) * | 2006-02-16 | 2012-08-09 | Ngf Europe Ltd | コーティングラテックス、補強用コード及びゴム物品 |
JP2009526924A (ja) * | 2006-02-16 | 2009-07-23 | エヌ・ジー・エフ ヨーロッパ リミテッド | 押出又は成形によってゴム物品を形成するための方法、コーティングラテックス及び補強用コード |
WO2008123066A1 (ja) * | 2007-03-23 | 2008-10-16 | Toho Tenax Co., Ltd. | ゴム補強用炭素繊維コードおよびその製造方法 |
JP2010138535A (ja) * | 2008-11-13 | 2010-06-24 | Central Glass Co Ltd | ガラス繊維被覆用塗布液およびそれを用いたゴム補強用ガラス繊維 |
JP2010222734A (ja) * | 2009-03-24 | 2010-10-07 | Central Glass Co Ltd | ゴム補強用ガラス繊維およびそれを用いた伝動ベルト |
US10000868B2 (en) | 2011-01-21 | 2018-06-19 | Zeon Corporation | Reinforcing cord for rubber and rubber product using the same |
JP2012149363A (ja) * | 2011-01-21 | 2012-08-09 | Nippon Zeon Co Ltd | ゴム補強用コード及びそれを用いたゴム製品 |
CN103380246A (zh) * | 2011-01-21 | 2013-10-30 | 日本瑞翁株式会社 | 橡胶增强绳和使用其的橡胶产品 |
WO2012098910A1 (ja) * | 2011-01-21 | 2012-07-26 | 日本ゼオン株式会社 | ゴム補強用コード及びそれを用いたゴム製品 |
JP2013002002A (ja) * | 2011-06-10 | 2013-01-07 | Nippon Sheet Glass Co Ltd | ゴム製品を補強するための補強用コードおよびそれを用いたゴム製品 |
JP2014070296A (ja) * | 2012-09-28 | 2014-04-21 | Toyo Tire Cord Kk | ゴム補強用炭素繊維コードおよびその製造方法 |
US9752649B2 (en) | 2013-01-30 | 2017-09-05 | Nippon Sheet Glass Company, Limited | Carbon fiber cord for reinforcing rubber product and rubber product using the same |
JPWO2014119280A1 (ja) * | 2013-01-30 | 2017-01-26 | 日本板硝子株式会社 | ゴム製品を補強するための炭素繊維コードおよびそれを用いたゴム製品 |
WO2014119280A1 (ja) | 2013-01-30 | 2014-08-07 | 日本板硝子株式会社 | ゴム製品を補強するための炭素繊維コードおよびそれを用いたゴム製品 |
JPWO2015098105A1 (ja) * | 2013-12-25 | 2017-03-23 | 日本板硝子株式会社 | ゴム補強用コードを形成するための水性処理剤、これを用いて形成されたゴム補強用コードおよびその製造方法、および、このゴム補強用コードを用いたゴム製品 |
WO2015098105A1 (ja) * | 2013-12-25 | 2015-07-02 | 日本板硝子株式会社 | ゴム補強用コードを形成するための水性処理剤、これを用いて形成されたゴム補強用コードおよびその製造方法、および、このゴム補強用コードを用いたゴム製品 |
US11168760B2 (en) | 2013-12-25 | 2021-11-09 | Nippon Sheet Glass Company, Limited | Water-based treatment agent for forming rubber-reinforcing cord, rubber-reinforcing cord formed using same and production method therefor, and rubber product employing rubber-reinforcing cord |
JP2018119227A (ja) * | 2017-01-24 | 2018-08-02 | 帝人株式会社 | ゴム補強用炭素繊維コード |
WO2018198778A1 (ja) | 2017-04-27 | 2018-11-01 | 日本板硝子株式会社 | ゴム補強用コード及びそれを用いたゴム製品 |
US11932738B2 (en) | 2017-04-27 | 2024-03-19 | Nippon Sheet Glass Company, Limited | Rubber-reinforcing cord and rubber product using same |
WO2020079917A1 (ja) * | 2018-10-17 | 2020-04-23 | バンドー化学株式会社 | 歯付ベルト |
US11085505B2 (en) | 2018-10-17 | 2021-08-10 | Bando Chemical Industries, Ltd. | Toothed belt |
Also Published As
Publication number | Publication date |
---|---|
US20080032130A1 (en) | 2008-02-07 |
BRPI0512817B1 (pt) | 2016-02-10 |
KR101181128B1 (ko) | 2012-09-14 |
EP1762654A4 (en) | 2012-09-12 |
BRPI0512817A (pt) | 2008-04-08 |
JP4460581B2 (ja) | 2010-05-12 |
CN1969083A (zh) | 2007-05-23 |
EP1762654A1 (en) | 2007-03-14 |
CN1969083B (zh) | 2010-06-16 |
CA2589578A1 (en) | 2006-01-05 |
JPWO2006001385A1 (ja) | 2008-04-17 |
CA2589578C (en) | 2013-02-26 |
KR20070030238A (ko) | 2007-03-15 |
EP1762654B1 (en) | 2014-04-23 |
US9593445B2 (en) | 2017-03-14 |
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