CN103183875A - Marine inflaming retarding rubber sealing material with low friction factor and preparation method thereof - Google Patents
Marine inflaming retarding rubber sealing material with low friction factor and preparation method thereof Download PDFInfo
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- CN103183875A CN103183875A CN2013100652176A CN201310065217A CN103183875A CN 103183875 A CN103183875 A CN 103183875A CN 2013100652176 A CN2013100652176 A CN 2013100652176A CN 201310065217 A CN201310065217 A CN 201310065217A CN 103183875 A CN103183875 A CN 103183875A
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a marine inflaming retarding rubber sealing material with low friction factor and a preparation method thereof. The marine rubber sealing material with a low friction factor comprises a crude rubber substrate, an inflaming retarding system, carbon black, a filling agent, a vulcanizing agent and a vulcanization accelerator, wherein the crude rubber substrate is oil-extended EPDM (ethylene propylene diene monomer), and the main effective element of an inflaming retarding system is a halogen-antimony inflaming retarding agent. During the forming process, the oil-extended rubber thinly passes through two rollers of an open mixing mill or an internal mixer repeatedly, and then the oil-extended rubber and the other materials are sequentially added, are uniformly mixed in proportion and remain still in the open mixing mill or the internal mixer; the rubber mixture is added into a single screw extruder to be continuously extruded and is heated and shaped indirectly in a vulcanizing boiler, the vapor pressure and time are respectively 0.5+/-0.05 MPa and 120+/10 Min. Teflon solution and tetrafluoroethylene powder are mixed uniformly with absolute ethyl alcohol, and then the mixture is sprayed on the surface of cross-linked rubber, and after heating and solidification, the ship-used inflaming retarding rubber sealing material with the low friction factor is obtained. The inflaming retarding rubber sealing material is applied to rubber sealing products on a transport ship, and has extremely low friction factor and good inflaming retarding performance.
Description
Technical field
The present invention relates to a kind of marine rubber sealing goods, be specifically related to a kind of fire-retardant marine rubber sealing material with low-friction coefficient and preparation method thereof.
Background technology
Terpolymer EP rubber (EPDM) is formed by ethene, propylene and the 3rd monomer copolymerization, and its macromolecular main chain is saturated fully, and the 3rd monomer is present on the side chain as active cross-linking set.EPDM has excellent weathering resistance, ozone resistance, thermotolerance, excellent electric insulating and resistant to chemical media corrodibility because the high saturability of molecular chain makes it to compare with other conventional rubber; And the EPDM relative density is low, and loading level is big, and the rubber processing of various routines is had excellent adaptability.Along with the continuous development of every profession and trade technology, EPDM is also had higher requirement, as require to improve its flame retardant properties and reduce skin friction coefficient etc.
EPDM is very easy to burning, and produces a large amount of black dense smoke mainly by hydrocarbon elementary composition.In the actual production, often improve its flame retardant resistance by in EPDM, adding fire retardant.Fire retardant can be divided into halogen containing flame-retardant and inorganic hydroxide fire retardant by mechanism of action difference.Halogen containing flame-retardant is owing to its high efficiency is subjected to widespread use.But the hydrogen halide that produces during the halogen containing flame-retardant burning has corrodibility and toxicity, and its goods only are fit to be applied to open space.Patent CN1542042 discloses a kind of Halogen flame-proof elastomer, and this flame retardant rubber has been owing to adopted halogen-antimony collaboration system (decabromodiphynly oxide/antimonous oxide), thereby has the advantage that loading level is low, flame retardant effect is good, the mechanical property loss is little.Be the inorganic combustion inhibitor asepsis environment-protecting of representative with oxyhydroxide, but because its flame retarding efficiency is low, need to fill in a large number, often influence other performance of rubber item.Patent CN201210237762.4 has introduced a kind of environment-friendly rubber flame-retardant system.Its concrete main component is modified magnesium hydroxide, modified aluminium hydroxide, weisspiessglanz, hydrotalcite etc. and uses.The method that provides according to this patent can make fire-retardant good rubber item, but its mechanical property and extrusion performance are relatively poor.
Many rubber items are all dynamically working under the sliding mode, as rotation axis seal circle and windshield wiper bar etc.Thereby the rubbing factor that reduces rubber helps to reduce friction and effectively reduces the wearing and tearing of rubber.The method that reduces the rubber friction factor commonly used has companion method (as add wear-resisting lubricants such as molybdenumdisulphide and carbon fiber in sizing material), rubber plastic blend method (sneaking into polypropylene or polyethylene in rubber) and surface-modification method.Companion method and rubber plastic blend method have bigger influence to the performance of sizing, and the surface modification rule is in the frictional behaviour that keeps changing under the constant substantially prerequisite of sizing performance rubber surface.Studies show that rubber composite mainly is wearing and tearing and the degraded of surface portion material in moving process, and material inside does not change substantially, therefore modification truly has practical significance to rubber surface.Surface modification is divided into surface chemical modification and physics coats.Surface chemical modification mainly contain fluoridize, bromination, sulfonation and iodate etc.; Physics coats and mainly contains the coating of phenylene dimethyl polymer film, surface-coated lubricant film and tetrafluoroethylene coating etc.Zheng Wenbo has contrasted three kinds of different method of modifying (add internal lubricant, surperficial halogenation and surface increase cover tetrafluoroethylene) to the influence of the frictional coefficient of butyronitrile oil sealing material in " research of low friction rubber oil sea material ".The result shows, applies the best results of poly tetrafluoroethylene; In addition, add methods such as internal lubricant, increase sizing material hardness and raising state of vulcanization and all can reduce frictional coefficient to some extent.Wu Xinguo has contrasted form, particle diameter and the surface treatment of the different self-lubricating agent (carbon nanotube, molybdenumdisulphide, graphite and tetrafluoroethylene) of in paracril interpolation to the influence of frictional coefficient in " low friction nitile-butadiene rubber composite material cooperates and Study on Friction Properties "; Studies show that the particle after the surface treatment easily disperses to form homogeneous phase, three dimensional particles more is conducive to reduce skin friction coefficient, and the more little then skin friction coefficient of size of particles is more little.
Summary of the invention
The object of the present invention is to provide a kind of fire-retardant marine rubber sealing material with low-friction coefficient and preparation method thereof, its goods are available as sealing article and are applied on the roro vessel.
The object of the present invention is achieved like this:
A kind of fire-retardant marine rubber sealing material with low-friction coefficient, its prescription are formed mass fraction and are:
150 parts of rubber matrixes
Composite flame-retardant agent 70-170 part
Carbon black 50-100 part
Vulcanizing agent 2-5 part
Vulcanization accelerator 1-3 part;
Wherein, described rubber matrix is oil extended EPDM,
Described composite flame-retardant agent is to form by the mass parts of following effective constituent is composite:
Ten ether biphenyl ether 50-100 parts
Antimonous oxide 10-30 part
Micro encapsulation red phosphorus 0-20 part
Zinc borate 0-20 part;
The surface of the vulcanized article that this formula materials makes is coated with polytetrafluorethylecoatings coatings, and the spray material of described polytetrafluorethylecoatings coatings is formed by mass ratio 2:1:1 is composite with dehydrated alcohol by two-pack polytetrafluoroethylsolution solution (Xylan 2320 that U.S. Whitford company produces), polytetrafluorethylepowder powder (FR002A that Shanghai three Ai Fu companies produce).
Because shape of the present invention is special, product bad phenomenon such as easily cave in sulfidation is so the rubber matrix should be selected the oil-extended rubber trade mark of high viscosity, higher ethylene content.As preferred version, the EPDM that adopts among the present invention is the oil-extended rubber (that is, added 50 parts oil 100 parts terpolymer EP rubber the inside, the oily massfraction that accounts for oil-filled glue is 1/3 in the oil-filled glue) of oil-filled 33wt.%.
The main effective constituent of the composite flame-retardant agent that the present invention adopts is the composite antimonous oxide of halogen containing flame-retardant, and be aided with an amount of micro encapsulation red phosphorus and/or zinc borate as fire retarding synergist, help to form halogen-antimony highly effective flame-retardant system, reach good flame retardant effect.
The carbon black that the present invention adopts is Cabot Co.,Ltd's medium reinforcement of producing or one or more and usefulness among LR low reinforcing carbon black N550, SP5000 and the N774.The intensity that the adding of carbon black is conducive to improve the processing characteristics of unvulcanized rubber matrix material and promotes cross-linked rubber.
Vulcanizing agent of the present invention is Sulfur, described vulcanization accelerator be in 2-benzothiazolyl mercaptan (M), dithio-bis-benzothiazole (DM), zinc dibutyl dithiocarbamate (BZ), bis-pentamethylenethiuram tetrasulfide (DPTT), tetramethyl-thiuram disulfide (TMTD) or N-cyclohexyl-2-[4-morpholinodithio base sulphenamide (CZ) one or more and use.
A kind of vulcanization formation method with fire-retardant marine rubber sealing material of low-friction coefficient, earlier with oil extended EPDM thin-pass 5-10 time, use then and drive refining glue or Banbury mixer and rubber matrix, carbon black, composite flame-retardant agent, vulcanization accelerator and Sulfur etc. are added in proportion successively mixing to evenly, mixing total time was controlled in 30 minutes.The rubber unvulcanizate of parking after 24 hours is added in the single screw extrusion machine, the temperature of control head, fuselage, the shape of the mouth as one speaks and charging bole is at 50-80 ℃, the rotating speed of screw rod is in 20-30r/min, sizing material is extruded continuously, and in the moulding of indirect type pan vulcanization, pressure-controlling is 0.5 ± 0.05MPa, and the time was controlled at 120 ± 10 minutes.
A kind of spraying method with fire-retardant marine rubber sealing material of low-friction coefficient is characterized in that, with dehydrated alcohol wiping cross-linked rubber spraying face, and use order number guarantees that less than 600 sand papering spraying face spraying face cleaning is clean; The polytetrafluoroethylsolution solution that mixes poured in the spray gun spray, the air gun nozzle diameter is controlled to be 1.3 ± 0.1mm, spray gun air inlet pressure and atomizing pressure etc. are far and near according to goods spraying face size, distance, the coating proterties is regulated voluntarily, guarantee that sprayed coating does not play piebald, do not trickle, coating is even, coat-thickness is controlled at 15-20 μ m.Product after the spraying is moved in the baking oven, carry out surface drying under the condition of 60 ± 3 ℃ and 10 ± 5min, and then be cured under the condition at 150 ± 5 ℃ and 20 ± 5min, naturally cooling namely gets product of the present invention.
By in oil extended EPDM, cooperating multiple additives such as flame-retardant system, carbon black, vulcanization accelerator, vulcanizing agent, and at cross-linked rubber surface spraying polytetrafluorethylecoatings coatings, finally prepare a kind of physical and mechanical properties and flame retardant properties good and have a rubber composite than low-friction coefficient.
Embodiment
The present invention will be further described below by embodiment, but not as limitation of the present invention.
Embodiment 1
Elastomeric material each component and mass fraction are: EPDM (Keltan 4455), 150 parts; Carbon black N550,60 parts; Decabromodiphenyl oxide, 70 parts; Antimonous oxide, 20 parts; Zinc borate, 10 parts; Zinc oxide, 5 parts; Hard ester acid, 1 part; Accelerant CZ, 2 parts; TM monex TD, 0.5 part; Sulfur, 1 part.
Spray material is the Xylan 2320 that U.S. Whitford company produces, and FR002A and dehydrated alcohol that Shanghai three Ai Fu companies produce mix by mass ratio 2:1:1.
The preparation technology of embodiment 1 is:
Earlier will use mill itself and carbon black, composite flame-retardant agent, vulcanization accelerator and Sulfur etc. to be added successively in proportion mixing mixing total time was controlled in 30 minutes to even after the EPDM thin-pass 10 times, temperature be mixing below 50 ℃, parks 24 hours.
Rubber unvulcanizate is added in the single screw extrusion machine, the temperature of control head, fuselage, the shape of the mouth as one speaks and charging bole is respectively 70 ℃, 60 ℃, 80 ℃ and 50 ℃, the rotating speed of screw rod is in 20r/min, sizing material is extruded continuously, and in the moulding of indirect type pan vulcanization, pressure-controlling is 0.5MPa, and the time is 120 minutes.
With dehydrated alcohol wiping cross-linked rubber spraying face, and use the sand papering of 400 order numbers to spray face, guarantee that spraying face cleaning is clean; The polytetrafluoroethylsolution solution that mixes poured in the spray gun spray, the air gun nozzle diameter is controlled to be 1.3mm, regulates spray gun air inlet pressure and atomizing pressure, guarantees that sprayed coating does not play piebald, do not trickle, coating is even, and coat-thickness is controlled at 15-20 μ m.Product after the spraying is moved in the baking oven, under the condition of 60 ℃ of * 10min, carry out surface drying, and then under the condition of 150 ℃ of * 20min, be cured, shift out the baking oven naturally cooling then.
Embodiment2
Elastomeric material each component and mass fraction are: EPDM (JSR EP96), 150 parts; Carbon black SP5000,80 parts; Decabromodiphenyl oxide, 100 parts; Antimonous oxide, 25 parts; Micro encapsulation red phosphorus (commercially available), 10 parts; Zinc borate, 10 parts; Zinc oxide, 5 parts; Hard ester acid, 1 part; Accelerant CZ, 1.5 parts; TM monex TD, 0.5 part; Captax, 0.5 part; Vulkacit D, 0.5 part; Sulfur, 1.5 parts.
Spray material is the Xylan 2320 that U.S. Whitford company produces, and FR002A and dehydrated alcohol that Shanghai three Ai Fu companies produce mix by mass ratio 2:1:1.
The preparation technology of embodiment 2 is with embodiment 1.
Comparative Examples1
Repeat the optimization of C of Zheng Wenbo in " research of low friction rubber oil sea material ".It is composed as follows to fill a prescription: paracril N240S, 100 parts; Zinc oxide, 5 parts; Hard ester acid, 1.5 parts; High wear-resistant carbon black, 50 parts; Semi-reinforcing hydrocarbon black, 20 parts; Dioctyl sebacate, 10 parts; Antioxidant 4010NA, 1.5 parts; Anti-aging agent RD, 1.5 parts; TM monex TD, 1.5 parts; Altax, 2 parts; Sulfur, 0.5 part.
The preparation technology of Comparative Examples 1: earlier with paracril thin-pass 10 times in mill, add carbon black, softening agent, anti-aging agent, promotor and Sulfur etc. more in proportion successively and be added to mixing even in proportion successively; The refining glue time is controlled about 20 minutes and parked 24 hours.Under 150 ℃ of conditions, in vulcanizing press, vulcanize, pressure is selected 10MPa, and the time is 20 minutes, namely obtains the test piece of 2 mm thick.Park 24 hours rear surfaces again and paste poly tetrafluoroethylene.
Comparative Examples 2
Repeat poplar and build the optimization of C that " molybdenumdisulphide is to the influence of NBR properties of rubber " announces in.Each material is composed as follows: NBR240S, 100 parts; Zinc oxide, 5 parts; Hard ester acid, 1; Carbon black N330,50 parts; Antioxidant 4010NA, 2 parts; Altax, 1.5 parts; 1.5 parts of Sulfurs; Molybdenumdisulphide, 30 parts.
The preparation technology of Comparative Examples 2: earlier with paracril thin-pass 10 times in mill, add carbon black, softening agent, anti-aging agent, promotor and Sulfur etc. more in proportion successively and be added to mixing even in proportion successively; The refining glue time is controlled about 20 minutes and parked 24 hours.Under 150 ℃ of conditions, in vulcanizing press, vulcanize, pressure is selected 10MPa, and the time is 20 minutes, namely obtains the test piece of 2 mm thick.
The performance data of table 1 embodiment of the invention and Comparative Examples
| Performance | Unit | Embodiment 1 | Embodiment 2 | Comparative Examples 1 | Comparative Examples 2 |
| Rubber hardness | Shao A | 58 | 65 | 83 | 75 |
| Tensile strength | MPa | 13.4 | 14.2 | 24.3 | 21.2 |
| Tensile yield | % | 531 | 462 | 454 | 390 |
| Oxygen index | % | 30.1 | 32.9 | 21.1 | 20.3 |
| Frictional coefficient | － | 0.32 | 0.29 | 0.83 | 1.12 |
Claims (8)
1. fire-retardant marine rubber sealing material with low-friction coefficient, it is characterized in that: the prescription of described sealing material comprises following mass fraction material:
150 parts of rubber matrixes
Composite flame-retardant agent 70-170 part
Carbon black 50-100 part
Vulcanizing agent 2-5 part
Vulcanization accelerator 1-3 part;
Wherein, described rubber matrix is oil extended EPDM;
Described composite flame-retardant agent is to form by the mass parts of following effective constituent is composite:
Ten ether biphenyl ether 50-100 parts
Antimonous oxide 10-30 part
Micro encapsulation red phosphorus 0-20 part
Zinc borate 0-20 part;
The surface of the vulcanized article that this formula materials makes is coated with polytetrafluorethylecoatings coatings, and the spray material of described polytetrafluorethylecoatings coatings is formed by mass ratio 2:1:1 is composite by two-pack polytetrafluoroethylsolution solution, polytetrafluorethylepowder powder and dehydrated alcohol.
2. a kind of fire-retardant marine rubber sealing material with low-friction coefficient according to claim 1 is characterized in that, described carbon black be among medium reinforcement or LR low reinforcing carbon black N550, SP5000 and the N774 one or more and use.
3. a kind of fire-retardant marine rubber sealing material with low-friction coefficient according to claim 1 is characterized in that, the oil-filled mass percent of described oil extended EPDM 25% ~ 40% of the matrix body of making a living.
4. a kind of fire-retardant marine rubber sealing material with low-friction coefficient according to claim 3 is characterized in that, the oil-filled massfraction of described oil extended EPDM 1/3 of the matrix body of making a living.
5. a kind of fire-retardant marine rubber sealing material with low-friction coefficient according to claim 1 is characterized in that described polytetrafluorethylecoatings coatings thickness is 15-20 μ m.
6. a kind of fire-retardant marine rubber sealing material with low-friction coefficient according to claim 1 is characterized in that described two-pack polytetrafluoroethylsolution solution is the Xylan 2320 that U.S. Whitford company produces; Described polytetrafluorethylepowder powder is the FR002A that Shanghai three Ai Fu companies produce.
7. fire-retardant marine rubber sealing preparation methods with low-friction coefficient, it is characterized in that, be ready to material according to one of claim 1-6, make and be sulfided into work in-process, spraying, described spraying process is as follows: the spray material that the polytetrafluorethylecoatings coatings that mixes is used is poured in the spray gun and is sprayed; Product after the spraying is moved in the baking oven, carry out surface drying under the condition of 60 ± 3 ℃ and 10 ± 5min, and then be cured under the condition at 150 ± 5 ℃ and 20 ± 5min, naturally cooling namely gets product.
8. a kind of fire-retardant marine rubber sealing preparation methods with low-friction coefficient according to claim 7 is characterized in that, describedly is sulfided into half-finished preparation process and is:
Earlier with oil extended EPDM thin-pass 5-10 time, to use then and drive refining glue or Banbury mixer and individual raw material is added in proportion successively mixing to evenly, mixing total time control is in 30 minutes; The rubber unvulcanizate of parking after 24 hours is added in the single screw extrusion machine, the temperature of control head, fuselage, the shape of the mouth as one speaks and charging bole is at 50-80 ℃, the rotating speed of screw rod is in 20-30r/min, sizing material is extruded continuously, and in the moulding of indirect type pan vulcanization, pressure-controlling is 0.5 ± 0.05MPa, and the time was controlled at 120 ± 10 minutes, made the sulfuration work in-process.
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| CN201310065217.6A CN103183875B (en) | 2013-03-01 | 2013-03-01 | Marine inflaming-retarding rubber packing material with low-friction coefficient and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103724835A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Piston seal ring for automobile brake calipers |
| CN104194089A (en) * | 2014-08-21 | 2014-12-10 | 太仓荣南密封件科技有限公司 | NBR BUMPER sizing material for door lock system for vehicles and preparation process thereof |
| CN107057195A (en) * | 2016-12-23 | 2017-08-18 | 上海瑞孚管路系统有限公司 | A kind of EPDM rubber |
| CN111320823A (en) * | 2020-04-27 | 2020-06-23 | 太仓恩力成密封件有限公司 | Wear-resistant anti-aging automobile sealing strip and preparation method thereof |
| CN112341956A (en) * | 2020-11-11 | 2021-02-09 | 青岛海力威新材料科技股份有限公司 | Heat vulcanization adhesive for fluororubber oil seal and preparation method |
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| CN1542042A (en) * | 2003-11-05 | 2004-11-03 | 苏州特威塑胶有限公司 | Dynamic vulcanized flame-proof EPT rubber / polypropylene thermoplastic elastomer |
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| 丁攀攀，白骏烈: "提高油封耐磨性能的途径", 《橡胶工业》 * |
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| CN103724835A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Piston seal ring for automobile brake calipers |
| CN104194089A (en) * | 2014-08-21 | 2014-12-10 | 太仓荣南密封件科技有限公司 | NBR BUMPER sizing material for door lock system for vehicles and preparation process thereof |
| CN104194089B (en) * | 2014-08-21 | 2016-05-04 | 太仓荣南密封件科技有限公司 | One class door lock for vehicles system NBR BUMPER sizing material and preparation technology thereof |
| CN107057195A (en) * | 2016-12-23 | 2017-08-18 | 上海瑞孚管路系统有限公司 | A kind of EPDM rubber |
| CN111320823A (en) * | 2020-04-27 | 2020-06-23 | 太仓恩力成密封件有限公司 | Wear-resistant anti-aging automobile sealing strip and preparation method thereof |
| CN111320823B (en) * | 2020-04-27 | 2022-05-13 | 太仓恩力成密封件有限公司 | Wear-resistant anti-aging automobile sealing strip and preparation method thereof |
| CN112341956A (en) * | 2020-11-11 | 2021-02-09 | 青岛海力威新材料科技股份有限公司 | Heat vulcanization adhesive for fluororubber oil seal and preparation method |
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