WO2014088365A1 - 탄소나노튜브를 포함하는 고열전도성 블래더용 고무복합체 조성물 및 그 제조방법 - Google Patents
탄소나노튜브를 포함하는 고열전도성 블래더용 고무복합체 조성물 및 그 제조방법 Download PDFInfo
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- WO2014088365A1 WO2014088365A1 PCT/KR2013/011285 KR2013011285W WO2014088365A1 WO 2014088365 A1 WO2014088365 A1 WO 2014088365A1 KR 2013011285 W KR2013011285 W KR 2013011285W WO 2014088365 A1 WO2014088365 A1 WO 2014088365A1
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- rubber
- rubber composite
- bundle
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C43/3642—Bags, bleeder sheets or cauls for isostatic pressing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Definitions
- Rubber composite composition for high thermal conductivity bladder including carbon nanotubes and method for manufacturing same
- the present invention relates to a rubber composite composition comprising carbon nanotubes and a method for manufacturing the same. Specifically, the present invention relates to a high-efficiency rubber composite having improved thermal conductivity, tensile strength, and durability, including an array of aligned carbon nanotube bundles. It relates to a manufacturing method thereof.
- Carbon nanotubes have an electron arrangement of sp 2 , ie at one carbon atom
- Carbon nanoleubes It's called carbon nanoleubes. Its electrical conductivity is similar to that of copper, its thermal conductivity is the best diamond in nature, and its strength is 100 times better than steel. Carbon fiber breaks with only 1% deformation
- Carbon nano-rubber can withstand 15% strain.
- Carbon nanotubes such as semiconductors, flat panel displays, batteries, super strong fibers, biosensors, and television tubes are being developed.
- Patent Document 1 Korean Patent Application No. 2005-0056685 (Patent Document 1)
- Containing syndiotactic polybutadiene in the cis-polybutadiene matrix reduces the amount of carbon blocks used to reduce heat generation and enables hydrocarbon bonds in addition to sulfide bonds in rubber crosslinking to improve low fuel efficiency and wear characteristics.
- Korean Patent Application No. 2005-0092532 in a tire rubber composition containing nanoclay as a reinforcing agent, has a semi-ungsung group which reacts with the hydroxyl group of the clay, and simultaneously with rubber and It describes a rubber composition for tires with improved tensile strength, comprising an oligomeric binder having a functional group of a saturated or unsaturated chain capable of reacting.
- Patent Document 3 Korean Patent Application No. 2005-0050487 (Patent Document 3) is characterized in that the use of l-3phr of sulphate dioctyl sulfosuccinate to improve the dispersibility of the carbon nano-leube
- the tire tread rubber composition has improved wear characteristics.
- Patent Document 1 Korean Patent Application No. 2005-0056685
- Patent Document 2 Korean Patent Application No. 2005-0092532
- Patent Document 3 Korean Patent Application No. 2005-0050487
- Non-Patent Document 1 S. Chakarabarti, T. Nagasaka, Y. Yoshikawa, L. Pan, Y. Nakayama, 2006, Growth of super long aligned brush-like carbon nanotubes, Japanese Journal of Applied Physics, 45 (28) L720-L722
- An object of the present invention to solve the above problems is to provide a rubber composite and a method for producing the same, which have excellent dispersibility of carbon nanotubes and improved thermal conductivity, tensile strength and durability.
- the present invention provides a rubber composite composition comprising a bundle of aligned carbon nanotubes (aligned carbon nanotubes).
- the diameter of the alignment structure carbon nano-leave bundle may be 0.5 to 100, the length may be 1 to 1000.
- the aligned carbon nanotube bundles may be carbon nanotube bundles formed by aligning carbon nanotube strands having a diameter of 1 to 100 nm in length in one direction.
- the rubber composite composition has an alignment structure
- Carbon nanotube bundles, raw material rubbers and fillers Carbon nanotube bundles, raw material rubbers and fillers.
- the alignment structure of the carbon nanotube bundle may be 0.5-10% by weight, raw material rubber 45-55% by weight, and filler 35'-50% by weight ⁇ 3 ⁇ 4.
- the raw rubber may be natural rubber, synthetic rubber, or a combination thereof.
- the layer agent may be carbon black, silica, or a combination thereof.
- a rubber for bladder comprising the rubber composite composition according to the present invention.
- the present invention comprises the steps of mixing a rubber composite composition comprising 0.5 ⁇ 10% by weight of the bundle structure carbon nanotube bundle, 45 ⁇ 55% by weight of the raw material rubber and 35-50% by weight of the filler; And dispersing the mixed composition; It can provide a method for producing a rubber composite comprising a.
- the alignment structure carbon nanotube bundle is a step of synthesizing the catalytic metal particles prepared by reducing the transition metal precursor by chemical vapor deposition using a hydrocarbon gas and hydrogen gas; It may include a method of manufacturing a rubber composite that is prepared to include.
- the carbon nano-leave is in a bundle form aligned in one direction.
- the carbon nano-leube in the present invention it is an 'alignment structure
- the present invention provides a rubber composite using conventional carbon nanotubes.
- the present invention provides a rubber composite composition comprising a bundle of aligned carbon nanotubes.
- the diameter of the alignment structure carbon nanotube bundle according to an embodiment of the present invention is 0.5 to 100 / / m, preferably 1 to 50 / m, the length is preferably 1 to 1000.
- the individual carbon nanotube strands constituting the aligned carbon nanotubes bundle according to an embodiment of the present invention have a diameter of 1 to 100 nm, preferably 1 to 30 nm, and a length of 0.5 to 2500. / ⁇ , preferably 1 to 500. More preferably, the diameter of the carbon nanotube bundles when the carbon nanotube strands are aligned in one direction to form a bundle is 1 to 20, and the length is 10 to 300, which is better in terms of thermal conductivity, tensile strength, and durability. .
- the alignment structure according to the present invention if the length of the carbon nanotube bundle is less than l m
- the present invention is a rubber composite comprising a aligning carbon nano-leave bundle
- composition may specifically include an alignment structure carbon nano lubricous bundle, raw rubber and filler.
- the aligned carbon nanotube bundle according to the present invention is used to prepare the entire rubber composite composition.
- the thermal conductivity is excellent when the carbon nanostructure bundle is included, and the mechanical properties such as tensile strength and modulus are excellent. Specifically, when the carbon nanostructure bundle is less than 0.5% by weight, The thermal conductivity characteristics of the invention can be insignificant, and when excessively added in excess of 2 weight ⁇ 3 ⁇ 4, the modulus and hardness are very high, the tensile properties are poor, and the rubber properties are deteriorated.
- the above raw material rubber is based on the entire rubber composite composition.
- It can contain from 45 to 55% by weight, more preferably from 50 to 55% by weight, and the rubber compound kinetics is good and the hardness is not high when the raw material rubber is contained within the above range.
- the filler may include 35 to 50% by weight, more preferably 40 to 45 % by weight based on the total rubber composite composition.
- the rubber composite composition comprises less than 35% by weight ⁇ 3 ⁇ 4
- the reinforcing effect by the layering agent may be insignificant, and when the layering agent is included in an amount exceeding 50% by weight, the crack resistance may be deteriorated and the hardness becomes high, resulting in poor workability.
- the raw material rubber may be natural rubber, synthetic rubber, or a combination thereof, and the natural rubber may be general natural rubber or modified natural rubber.
- the above general natural rubber may be any known as natural rubber.
- Cis-1,4-polyisoprene is included as a subject, but depending on the required characteristics
- the natural rubber may comprise natural rubber comprising cis-1,4-polyisoprene as a subject or
- It may also include natural rubber containing 'trans' 1,4-isoprene as 'subject', such as Balatadong, a kind of rubber from Sapotagua, South America.
- the modified natural rubber refers to modified or refined general natural rubber.
- the modified natural rubber includes epoxy natural rubber (ENR), deproteinized natural rubber (DPNR) and hydrogenated natural rubber. Can be lifted.
- the synthetic rubber is styrene butadiene rubber (SBR), modified styrene butadiene rubber, butadiene rubber (BR), modified butadiene rubber, chlorosulfonated polyethylene rubber, epichlorohydrin rubber, fluorine rubber, silicone rubber, nitrile rubber , Hydrogenated nitrile rubber, nitrile butadiene rubber (NBR), modified nitrile butadiene rubber, chlorinated polyethylene rubber, styrene ethylene butylene styrene (SEBS) rubber, ethylene propylene rubber, ethylene propylene diene (EPDM) rubber, hypalon rubber, Chloroprene rubber, ethylene vinyl acetate rubber, acrylic rubber, hydrin rubber, vinyl benzyl chloride styrene butadiene rubber, bromomethyl styrene butadiene rubber, maleic acid styrene butadiene rubber, carboxylic acid styren
- the synthetic rubber may be preferably butadiene rubber.
- the butadiene rubber is used as the synthetic rubber, there is an advantageous effect in terms of improving resilience and wear resistance.
- the layering agent may be carbon black, silica, or a combination thereof.
- the carbon black may have a DBP (n-dibutyl phthalate) oil absorption of 60 to 180cc / 100g, a tint value of 50 to 120%, and an iodine adsorption amount of 30 to 100mg / g.
- the carbon black may have a DBP (n-dibutylphthalate) oil absorption of 80 to lOOcc / lOOg, a Tint value of 50 to 100%, and an iodine adsorption amount of 30 to 50 mg / g.
- Carbon black preferably used in the present invention has an iodine adsorption amount of 80 mg / g or less, preferably 15 to 40 mg / g, an average particle diameter of 250 nm or less, preferably 40 to 100 nm, and DBP. (n-dibutyl phthalate) absorption amount is 10-300 cmVl00g, Preferably it is 40-150cn / 100g.
- commercially available carbon black such as FEF grade, GPF grade, and SRF grade, can be used.
- the amount of iodine adsorption and the amount of DBP adsorption are indicative of the properties of carbon black.
- the iodine adsorption amount is indicative of the total surface area including the pores of carbon black. Also, DBP uptake is correlated with structure. The amount of iodine adsorption and the amount of DBP adsorption have a great influence on the reinforcement, extrusion properties, dispersibility, coloring power, viscosity, or conductivity when blended into the high-priced rubber composition having these characteristics.
- the particle diameter represents the average diameter of the small spherical component constituting the carbon black agglomerating zone, measured and measured by an electron microscope image, and closely related to the reinforcement and blackness of the rubber composition. have.
- the silica may be one having a nitrogen adsorption specific surface area (N2SA) of 100 to 180 m7g and a CTAB (cetyl trimethyl ammonium bromide) adsorption specific surface area of 110 to 170 m7g.
- N2SA nitrogen adsorption specific surface area
- CTAB cetyl trimethyl ammonium bromide
- the present invention provides a rubber composite for bladder comprising the rubber composite composition to provide.
- the rubber composite composition including the alignment structure carbon nanotube bundle, the raw material rubber, and the layering agent according to an embodiment of the present invention; And dispersing the mixed composition; It may include a method for producing a rubber composite comprising a.
- the rubber composite may be manufactured by a conventional method, and one of the present invention
- the mixed mixture may be prepared by dispersing the mixture into a 2-roll mill.
- the alignment structure carbon nanotube bundle may further include a catalyst metal particle prepared by reducing a transition metal precursor using hydrocarbon gas and hydrogen gas.
- Synthesizing by chemical vapor deposition may include a method of manufacturing a rubber composite to be prepared.
- the hydrocarbon gas may preferably be an ethylene gas.
- the aligned carbon nanotube bundle according to the invention has a high thermal conductivity when manufactured in a longitudinally aligned form. Specific manufacturing method for this can be prepared with reference to Non-Patent Document 1, but is not necessarily limited thereto.
- vulcanizing agents vulcanizing agents, vulcanizing aids, vulcanization accelerators, softeners or anti-aging agents.
- the vulcanizing agent that can be used in the present invention may be sulfur, sulfur compounds or organic peroxides, sulfur may be used powdered sulfur, sulfur compounds are sulfur chloride, sulfur chloride, high molecular weight polysulfide and mor Porin Disulfide, Alkylphenol Disulfide, Tetramethylchiuram Disulfide and Dipentamethylenechiram
- sulfur compounds that can be vulcanized by releasing active sulfur at vulcanization temperatures such as tetrasulfide.
- sulfur which is a vulcanizing agent, may be used in an amount of 0.1 to 3.0 parts by weight based on 100 parts by weight of a rubber composite, but is not limited thereto.
- the vulcanizing aid may be selected from at least one of stearic acid and zinc oxide, and zinc oxide may be used in an amount of 1.5-10 parts by weight based on 00 parts by weight of rubber composite. It is not.
- a vulcanization accelerator may be used.
- Thiazole compounds such as N-cyclonuxyl-2-benzothiazol sulfenamide, N-oxy diethylene-2-benzothiazol sulfenamide, and dibenzothiazil disulfide, diphenylguanidine, triphenylguanidine, and di Guanidine compounds, such as phenylguanidine phthalate, aldehydes, such as acetaldehyde-aniline condensate and acetaldehyde ammonia There are amine compounds, aldehyde ammonia compounds, imidazolyl compounds such as 2-mercaptoimidazoline, and compounds such as phenolic resin, and any vulcanization accelerator used in the art is not particularly limited.
- Softener ingredients may also be used, including process oils, silicone oils, fatty acid amides, lubricating oils, paraffins, liquid paraffins, petroleum asphalt, petrolatum, coal tar, castor oils, linseed oils, facts, beeswax, palmitic acid, stearic acid, Barium stearate, calcium stearate, zinc laurate, atactic polypropylene and
- One or more of the coumarone-indene resins may be selected. Of these, process oils are most preferred.
- anti-aging agents may be added to improve the anti-aging and stability of the bladder.
- Anti aging agents may also include. Anti aging agents
- N- (l, 3-dimethylbutyl) -N-phenyl-P-phenylenediamine N- (l, 3-dimethylbutyl) -N-phenyl-phen ylenediamine
- the rubber for bladder comprising the rubber composite composition according to the present invention
- the rubber composite composition prepared according to the present invention is conventional
- the composite Compared with the conventional rubber composite containing carbon nanotubes, the composite has high thermal conductivity and uniform thermal distribution in the rubber matrix, resulting in higher thermal conductivity and mechanical properties such as tensile strength and durability. Excellent physical properties and equivalent effects can be obtained ⁇
- FIG. 1 is a photograph of an enlarged cross-sectional view of a rubber composite specimen using a conventional carbon nano-leave bundle instead of the aligned carbon nano-leave bundle.
- FIG. 2 is an enlarged photograph of a cross section of a rubber composite specimen using an alignment structure carbon nanofluid according to an exemplary embodiment of the present invention.
- the prepared solution is transferred to a stainless steel container and placed in a baking furnace heated at 550 ° C. to obtain 20 g of a black brown catalyst powder through pyrolysis for 20 minutes.
- the quartz reaction tube of the thermochemical vapor deposition apparatus It is mounted inside the quartz reaction tube of the thermochemical vapor deposition apparatus. In a nitrogen atmosphere, the temperature of the reaction tube is raised to 750 ° C. over an hour, and 2 liters of hydrogen per minute are carried out for 20 minutes.
- Example 1 Manufactured in Example 1 the diameter of the foot 4, the bundle of aligned structure carbon nanotube bundles of average length of 35 113g, butyl rubber (Butyl 268, Exxon) 358.8g, carbon black (N220, Orion) 289.01g , 44.85 g of process oil and 3.59 g of stearic acid were mixed for 18 minutes at 30 rpm at 100 ° C through Kneader equipment, and then aged for 12 hours after 7 dispersion using 2-RoIl Mill equipment.
- butyl rubber butyl 268, Exxon
- carbon black N220, Orion
- 30.11g was mixed at 70 ° C. for 7 minutes and 30 seconds at Kneader, and then dispersed at 793 using 2-Roll Mill equipment for 12 minutes at 193 0 C and 100 kgf / cm 2 after 12 hours.
- Example 2 The same procedure as in Example 2 was carried out except that a multi-walled carbon nanotube (Hanhwa Chemical, product name CM-95) having an average diameter of 12.5 nm and an average length of 15.0 was used instead of the bundle of aligned carbon nanotubes. It was.
- CM-95 multi-walled carbon nanotube
- Example 2 The same procedure as in Example 2 was performed except that 408.8 g of butyl rubber (Butyl 268, Exxon) and 239.01 g of carbon black (N220, Orion) were used.
- butyl rubber butyl 268, Exxon
- carbon black N220, Orion
- Example 2 The rubber composites of Example 2 and Comparative Examples 1 to 3 were measured in accordance with ASTM related properties, and the physical properties such as tensile strength, elongation, 300% modulus, shore hardness and thermal conductivity are shown in Table 1 below. .
- Example 2 of the present invention in which the aligned carbon nanorubber bundle having a diameter of 4 // m and an average length of the bundle, is 35 mm, has a aligned carbon nanostructure.
- the rubber composite of Comparative Example 1 which uses ordinary carbon nano-rubbers, and not carbon nanotubes, which are not lubricated bundles, and the rubber composites of Comparative Example 2, which do not use carbon nanotubes at all, they are uniformly dispersed in butyl rubber and have excellent thermal conductivity. It could be confirmed that it has.
- the rubber composite of Comparative Example 3 which uses the same alignment structure carbon nanotubes and has a relatively large amount of raw rubber, has a relatively high elongation, which is a rubber property, but has a low thermal conductivity, making it difficult to use for a bladder.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/650,142 US20150322232A1 (en) | 2012-12-07 | 2013-12-06 | Rubber composite composition for highly thermally conductive bladder comprising carbon nanotubes and production method for same |
EP13859633.3A EP2930204A1 (en) | 2012-12-07 | 2013-12-06 | Rubber composite composition for highly thermally conductive bladder comprising carbon nanotubes and production method for same |
JP2015546392A JP2016501305A (ja) | 2012-12-07 | 2013-12-06 | カーボンナノチューブを含む高熱伝導性ブラダー用ゴム複合体組成物及びその製造方法 |
CN201380069721.1A CN104903391A (zh) | 2012-12-07 | 2013-12-06 | 包含碳纳米管的用于高导热性胶囊的橡胶复合物组合物及其制造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020120141835A KR101462426B1 (ko) | 2012-12-07 | 2012-12-07 | 탄소나노튜브를 포함하는 고열전도성 블래더용 고무복합체 조성물 및 그 제조방법 |
KR10-2012-0141835 | 2012-12-07 |
Publications (1)
Publication Number | Publication Date |
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WO2014088365A1 true WO2014088365A1 (ko) | 2014-06-12 |
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PCT/KR2013/011285 WO2014088365A1 (ko) | 2012-12-07 | 2013-12-06 | 탄소나노튜브를 포함하는 고열전도성 블래더용 고무복합체 조성물 및 그 제조방법 |
Country Status (6)
Country | Link |
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US (1) | US20150322232A1 (ko) |
EP (1) | EP2930204A1 (ko) |
JP (1) | JP2016501305A (ko) |
KR (1) | KR101462426B1 (ko) |
CN (1) | CN104903391A (ko) |
WO (1) | WO2014088365A1 (ko) |
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CN104130478A (zh) * | 2014-07-15 | 2014-11-05 | 北京化工大学 | 一种低滞后抗静电节油轮胎用胎面胶材料及其制备方法 |
CN104762066A (zh) * | 2015-03-06 | 2015-07-08 | 深圳大学 | 复合型相变储能微胶囊及其制备方法 |
US10141574B2 (en) * | 2015-09-09 | 2018-11-27 | Lg Chem, Ltd. | Carbon nanotube dispersion liquid and manufacturing method thereof |
CN110157048A (zh) * | 2018-02-07 | 2019-08-23 | 陕西永安减震科技有限公司 | 一种高导热工程橡胶材料及其制备方法 |
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JP6791414B2 (ja) | 2019-02-06 | 2020-11-25 | ダイキン工業株式会社 | 冷媒を含有する組成物、並びに、その組成物を用いた冷凍方法、冷凍装置の運転方法及び冷凍装置 |
CN109957160A (zh) * | 2019-03-12 | 2019-07-02 | 河南大林橡胶通信器材有限公司 | 气胎式离合器橡胶气囊 |
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CN110157048A (zh) * | 2018-02-07 | 2019-08-23 | 陕西永安减震科技有限公司 | 一种高导热工程橡胶材料及其制备方法 |
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JP2016501305A (ja) | 2016-01-18 |
US20150322232A1 (en) | 2015-11-12 |
CN104903391A (zh) | 2015-09-09 |
KR101462426B1 (ko) | 2014-11-17 |
EP2930204A1 (en) | 2015-10-14 |
KR20140074435A (ko) | 2014-06-18 |
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