CN105860179A - Rubber sealing product and preparation method and application thereof - Google Patents
Rubber sealing product and preparation method and application thereof Download PDFInfo
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- CN105860179A CN105860179A CN201610430148.8A CN201610430148A CN105860179A CN 105860179 A CN105860179 A CN 105860179A CN 201610430148 A CN201610430148 A CN 201610430148A CN 105860179 A CN105860179 A CN 105860179A
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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
- C08L15/00—Compositions of rubber derivatives
- C08L15/005—Hydrogenated nitrile rubber
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a rubber sealing product and a preparation method and application thereof. The rubber sealing product is prepared from, by weight, 75-98 parts of sealing rubber polymer, 2-25 parts of aramid pulp, 30-90 parts of rubber filler, 2-15 parts of a vulcanizing agent and 0-35 parts of rubber auxiliaries. The rubber sealing product can be used for high-pressure valve sealing pieces, has excellent rapid gas decompression resistance and is good in sealing effect at a high temperature and a high pressure and long in service life.
Description
Technical field
The present invention relates to rubber seal products and its preparation method and application, particularly to a kind of valve valve base sealing
Rubber seal products and its preparation method and application.
Background technology
In the nonmetal field of sealing technology of valve, nonmetallic materials refer generally to plastics, rubber and soft graphite etc., and rubber
Material is elastic excellent due to it, and tolerance balancing effect is obvious, to features such as metalwork requirement on machining accuracy are low, in valve seal side
The a large amount of design and use in face.But existing elastomeric material is at high temperature under high pressure, and sealing effectiveness is undesirable, mainly due to wearability
Poor, hardness is low, and intensity is low, and anti-extrusion deformation is big, easily by high shear, simultaneously under high temperature high pressure liquid or gaseous environment,
Rubber seal easily produces gas Quick Depressurization and lost efficacy.Anti-gas Quick Depressurization (Rapid Gas Decompression,
RGD), the most anti-implosion (Explosive Decompression, ED), is that rubber or plastic seal are at high temperature and high pressure condition
A kind of form of seal failure in system, it appears in rubber bodies through quick pressure oscillation in gas, admixture of gas
Or liquid mixture, all of rubber bodies the most more or less has by wellability, when rubber bodies under high pressure contacts one section with gas
After time, gas can penetrate into inside it, forms certain short space, and gas continues to penetrate into until external and internal pressure reaches flat
Weighing apparatus, pressure is the highest, and the gas of infiltration is the most.Pressure around rubber seal is cancelled suddenly, the compression in rubber bodies
Gas can not be sufficiently fast release, and result in rubber bodies cracking and bubbling, make sealing member lose sealability.As oil is natural
In the high temperature and high pressure environments such as gas exploitation and pipeline conveying, air compressor, gas Quick Depressurization failure phenomenon is relatively common.
Chinese patent (publication number: CN1948377A) discloses a kind of fiber reinforced graphite rubber plate and preparation method thereof,
Its component with the addition of a small amount of aramid fiber short fibre and aramid fiber slurry pool is used as to strengthen, but its invention mainly high filling flexible graphite,
Reducing the rubber content as binding agent, improve the use temperature of graphite rubber plate, this rubber clad plate uses at pipe flange
On, it is impossible to variously-shaped high elastic rubber sealing member is processed in sulfuration.Chinese patent (publication number: CN1570012A) discloses
A kind of airtight and watertight padding used for oil-field oil pumper and using method thereof, its airtight and watertight padding includes ptfe plastic, fluorubber, graphite
It is airtight and watertight padding used in industrial equipment involved by powder, aramid fiber, molybdenum bisuphide and No. 3 vulcanizing agents, equally this invention, nothing
Method sulfidization molding is variously-shaped rubber seal.
Therefore, the anti-extrusion deformation of a kind of high rigidity, the anti-shearing and high-performance rubber material of anti-gas Quick Depressurization are researched and developed
Expect the most necessary, in particular for valve valve base sealing high durometer rubber material, more than hardness requirement 85ShoreA, triangle circle
Hardness even reaches 98Shore A requirement.
Summary of the invention
Present invention solves the technical problem that and be: a kind of valve valve seat side of anti-gas Quick Depressurization rubber is provided
Method.
In order to realize the purpose of the present invention, one aspect of the present invention provides a kind of rubber seal products, and it includes:
75-98 weight portion caulking gum polymer；
2-25 weight portion aramid fiber slurry pool；
30-90 parts by weight of rubber filler；
2-15 weight portion vulcanizing agent；With
0-35 parts by weight of rubber auxiliary agent.
Another aspect of the present invention provides the preparation method of above-mentioned rubber seal products, and it comprises the steps:
A) by mixing uniformly to caulking gum polymer, aramid fiber slurry pool, gum filler, vulcanizing agent and rubber chemicals；With
B) molding and sulfuration.
Another aspect of the present invention provides the application in valve seal of above-mentioned rubber seal products.
The rubber seal products of the present invention has the anti-shearing of excellence and anti-extrusion deformation performance, the excellent fast rapid release of anti-gas
Pressure performance, at high temperature under high pressure good sealing effect, service life is long.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the valve of the rubber seal products using the one or more embodiment of the present invention.
Fig. 2 is the schematic perspective view of the triangular form rubber seal of one embodiment of the present invention.
Fig. 3 is the schematic perspective view of the O type rubber seal of one embodiment of the present invention.
Detailed description of the invention
In one preferred embodiment, the rubber seal products of the present invention includes:
78-96 weight portion caulking gum polymer；
4-22 weight portion aramid fiber slurry pool；
35-85 parts by weight of rubber filler；
3-10 weight portion vulcanizing agent；With
1-30 parts by weight of rubber auxiliary agent.
A particularly preferred embodiment, when caulking gum polymer used can be to prepare caulking gum goods
Conventional known rubber polymer, preferably prepares known rubber polymer conventional during valve seal rubber, more preferably
It is to prepare the valve seal rubber system used in the high temperature and high pressure environment such as oil and gas exploitation and pipeline conveying, air compressor
Known rubber polymer conventional during product.The general Mooney viscosity of this rubber polymer is 10～200 [ML1+4@100 DEG C],
The rubber polymer Mooney viscosity of some special trade mark can be higher than this scope.
The object lesson of this rubber polymer e.g. nitrile rubber, fluorine-containing rubber or combinations thereof thing.Butyronitrile rubber
The representational example of glue includes, but are not limited to: hydrogenated butyronitrile.Preferably in hydrogenated butyronitrile acrylonitrile (ACN) content 21%～
43% (HNBR, as).Fluorine-containing rubber can be two yuan of fluorubber, ternary fluororubber, peroxide sulfur
Change polynary fluorubber, and 4 third fluorubber.The representational example of fluorine-containing rubber includes, but are not limited to: 4 third fluorubber
(FEPM, as), or fluorubber (FKM, as) etc..
A particularly preferred embodiment, Fanglun slurry cake used e.g. carries out surface fibrillation to aramid fiber
The product obtained after process.The representational example of aramid fiber includes, but are not limited to para-aramid, meta aromatics polyamides
Amine and their mixture.The logarithmic viscosity number scope of aramid fiber is 1.5～9.5dl/g, preferably 3.0～
6.0dl/g.Aramid fiber slurry pool length range is generally 1.5-2.5mm.
The para-aramid being preferred for the present invention has no particular limits, and can be conventional para-aramid,
Its representational example includes, but are not limited to: poly terephthalic acid p-phenylenediamine, such as WithAnd the like；The copolymer of poly terephthalic acid p-phenylenediamine, such as WithAnd the like；Poly(p-benzamide)；The copolymerization of poly(p-benzamide)
Thing；Polysulfonamides, polysulfonamides copolymer and their mixture.
Particularly preferred aramid fiber refers to PPTA (PPTA), and it is a kind of high-performance polymer tree
Fat, has high-fire resistance, and vitrification point is more than 300 DEG C, and heat decomposition temperature is up to 560 DEG C.Preferably aramid fiber is entitled
Fanglun l414, because its molecular structure amide group is in phenyl ring para-position (Isosorbide-5-Nitrae) position, due to molecule chain rigidity, it has high anti-
Tensile strength and initial elastic modulus.The intensity of this aramid fiber is 5 times of steel, compression and bending strength when composite
It is only below inorfil.Thermal contraction and croop property are stable, in addition with high-insulativity and chemical resistance.
Fanglun slurry cake has the surface texture of uniqueness, thus drastically increases and rubber mix com-patibilising effect.
In a particularly preferred embodiment, the total amount of caulking gum polymer and Fanglun slurry cake is 100 weight portions.
In one more particularly preferred embodiment, fluorubber and the 2-15 weight portion aramid fiber of 85-98 weight portion is preferably used
Pulp, is preferably used fluorubber and the 4-10 weight portion Fanglun slurry cake of 90-96 weight portion.
In one preferred embodiment, gum filler used refers to prepare rubber conventional during caulking gum goods
Filler, gum filler conventional when preferably preparing valve seal rubber, more preferably prepare oil and gas exploitation and
Gum filler conventional during the valve seal rubber used in the high temperature and high pressure environments such as pipeline conveying, air compressor.On
The mean particle size range stating gum filler is 8nm～500nm, preferably 300nm～500nm.
White carbon black conventional when the most frequently used gum filler is to prepare caulking gum goods.Its representative example includes, but
It is not limited to white carbon black 220, white carbon black N330, white carbon black N550, white carbon black N774, white carbon black N990 or their mixture.
A more particularly preferred embodiment, above-mentioned white carbon black can be produced during caulking gum goods conventional
Other conventional fillers partly or entirely substitutes.Concrete replacement amount is advisable with the performance not damaging caulking gum goods.Other is normal
The replacement amount of rule filler is usually no more than the 50% of white carbon black gross weight, and preferably more than 30%, more preferably no more than 15%.
The representative example of other filler above-mentioned includes but not limited to barium sulfate, white carbon or their mixture, preferably
Replacement filler be barium sulfate.
A more particularly preferred embodiment, above-mentioned vulcanizing agent (also referred to as cross-linking agent) can be to prepare sealing rubber
Vulcanizing agent conventional during glue goods, preferably prepares vulcanizing agent conventional during valve seal rubber, more preferably prepares stone
Commonly use during the valve seal rubber used in the oil high temperature and high pressure environment such as natural gas extraction and pipeline conveying, air compressor
Vulcanizing agent.
The representative example of above-mentioned vulcanizing agent includes but not limited to peroxide vulcanizing agent, such as cumyl peroxide, and 2,
5-dimethyl-2,5-bis(t-butylperoxy) hexane or their mixture.Common trade name vulcanizing agent PX14-40,
Vulcanizing agent DCP, vulcanizing agent TAIC-S70, vulcanizing agent 101XL-45, vulcanizing agent bisphenol AF-50 or their mixture.Cross
Oxidation diisopropylbenzene (DIPB) (40% effective ingredient), 2,5-dimethyl-2,5-bis(t-butylperoxy) hexane (45% effective ingredient)
In one preferred embodiment, to may also include some commonly used in the art for the caulking gum goods of the present invention
Rubber chemicals.The representative example of these rubber chemicals include but not limited to vulcanization accelerator (i.e. crosslinking accelerator), acid-acceptor,
Plasticizer, age resistor, releasing agent, bridging agent or their mixture.The consumption of these rubber chemicals is typically to reach required effect
The performance really but not damaging caulking gum goods is advisable.
In a particularly preferred embodiment, vulcanization accelerator representative example used in the present invention include but not
It is limited to crosslinking accelerator Pertac/GR, crosslinking accelerator Triallyl isocyanurate (TAIC), bisphenol AF, benzyltriphenyl phosphonium
Phosphate BPP or their mixture.Particularly preferred vulcanization accelerator is vulcanization accelerator BP33.The use of vulcanization accelerator
Amount generally 0-5 weight portion, preferably 1-3 weight portion.
In a particularly preferred embodiment, the representative example of acid-acceptor used in the present invention includes but does not limits
In high-active zinc oxide, high activity calcium hydroxide, extra light calcined magnesia or their mixture.Its consumption is generally 0-10
Weight portion, preferably 1-8 weight portion.
In a particularly preferred embodiment, the representative example of plasticizer used in the present invention includes but does not limits
In trioctyl trimellitate (TOTM) (TOTM), SA dibutyl ester (DOS) or their mixture.Its consumption is generally 0-10 weight
Amount part, preferably 1-6 weight portion.
In a particularly preferred embodiment, the representative example of age resistor (i.e. antiager) used in the present invention
Include but not limited to 4.4 a pair ofs (2.2-dimethyl benzyl) diphenylamines (445), 2-mercapto benzimidazole zinc salt or theirs is mixed
Compound.Its consumption is generally 0-3 weight portion, preferably 0.1-2 weight portion.
In a particularly preferred embodiment, the representative example of remover used in the present invention includes but does not limits
In stearic acid, stearic acid wax, Brazil wax, WS280, HT290, Strucktol FL, StrucktolWB222 or they
Mixture.Its consumption is generally 0-3 weight portion, preferably 0.1-2 weight portion.
In a particularly preferred embodiment, the representative example of bridging agent used in the present invention includes but does not limits
In bridging agent GR.Its consumption is generally 0-10 weight portion, preferably 1-8 weight portion.
In one preferred embodiment, caulking gum can be polymerized by the caulking gum goods of the present invention on a mill until
Thing, aramid fiber slurry pool, gum filler, vulcanizing agent and rubber chemicals are mixing uniformly, but molding and sulfuration are made.Above-mentioned sulfuration can
Point multistep is carried out, such as, two steps can be divided to carry out.
In an embodiment more preferably, the caulking gum goods of the present invention such as can be made into three shown in Fig. 2
O RunddichtringO shown in angle-style sealing ring or Fig. 3.Fig. 1 represents the close of use triangular seal ring 1 and O RunddichtringO 2 of the present invention
Envelope valve.This valve includes valve body 3, valve seat 4 and spheroid 5.
Fanglun slurry cake is added by the present invention caulking gum polymer, simultaneously reasonably optimizing filler and vulcanizing system, greatly
Improve greatly the hardness of valve valve base sealing rubber, hot strength, anti-extrusion deformation and anti-shear performance, should simultaneously
Rubber also has the anti-gas Quick Depressurization performance of excellence；And formula is reasonable, manufacturing process is simple, substantially increases height
The sealing of temperature high pressure lower valve valve seat and pressure-bearing effect.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but the embodiment of invention is not limited to this.
In below embodiment, the performance of product following method of testing and standard are tested:
Hardness: GB/T 531.1-2008 vulcanite or thermoplastic elastomer penetration hardness test method Part I: shore
Durometer method；
Hot strength, elongation at break, modulus: GB/T 528-2009 vulcanite or thermoplastic elastomer tensile stress should
The mensuration of degeneration energy；
Right-angle tearing, pants type tear: GB/T 529-2008 vulcanite or the mensuration of thermoplastic elastomer tearing strength；
Anti-gas Quick Depressurization: NORSOK M710 rubber packing material anti-gas Quick Depressurization method of testing and requirement；
API anti-extrusion method of testing: the standard compression permanent deformation test block that thickness is 12.7mm is placed in anti-extrusion test
In instrument, test block and pressure column gap are 0.34mm, at a certain temperature (fluorine-containing rubber test temperature 200 DEG C, hydrogenated nitrile-butadiene rubber
Test temperature 150 DEG C), pressure column is pressurizeed so that it is rubber is carried out pressure deformation, after pressure to setting test request, calculate
Block rubber height change, now the height retention rate of block rubber is used as the sign that anti-extrusion performance is excellent.
Embodiment 1-6
Formula (weight portion) consumption of embodiment 1-6 as shown in table 1 weighs gets the raw materials ready, first will at a temperature of about 80 DEG C
1/2 rubber polymer is plasticated uniformly and bag roller in two-roll mill (emerging 12 cun of Taiwan prestige good fortune), then PPTA pulp (or pulp
Rubber master batch) add mill so that it is mixing uniformly, then by remaining 1/2 rubber polymer, to add the machine of beginning to pratise mixing uniformly.Connect
Vulcanizing agent, carbon black filler and other rubber chemicals mix homogeneously, and be slowly added into mill so that it is be equal with compounding rubber
Even, then slice, obtain rubber mixed.After the elastomeric compound prepared is displayed about 16 hours, then back mixing slice is stand-by.About
At a temperature of 180 DEG C by gained obtain rubber mixed carry out 10 minutes one step cures under the conditions of, molded vulcanization becomes standard rubber
Glue test piece, then post vulcanization 4 hours again at a temperature of about 180 DEG C.
Table 1
By above-mentioned method of testing or standard, test piece by standard testing batten sample preparation and is tested properties.The survey of gained
Test result such as table 2 below.
Table 2
Data from table 2 are it can be seen that at identical hydrogenated butyronitrileUnder C3446 base rubber, add aramid fiber slurry
The embodiment 2 of pool, embodiment 3 improve than embodiment 1 hardness, and modulus the most substantially increases, and especially 50% modulus increases respectively
Nearly 34% and 141%, right-angle tearing and pants type tearing strength also improve, and anti-extrusion performance is obviously improved.Contain at low acrylonitrile
The low form hydrogenated butyronitrile of amountIn LT 2157 base rubber, also there are identical effect and trend.At high acrylonitrile
The hydrogenated butyronitrile of contentIn C 4369 matrix, properties is the most excellent.
Embodiment 7-9
Formula (weight portion) consumption of embodiment 7-9 as shown in table 3 weighs gets the raw materials ready, by 4 third fluorubber
100H, white carbon black, aramid fiber slurry pool, cross-linking agent TAIC-S70 and P-14 (40%) and releasing agent add mill (with embodiment 1 phase
With) in, under about 80 DEG C mixing uniformly, obtain 4 third fluororubber compounded rubbers.Get the raw materials ready, by this embodiment elastomeric compound, at 180 DEG C
At a temperature of, under the conditions of 10 minutes one step cures, molded vulcanization becomes standard rubbers test piece, and at a temperature of 200 DEG C, post vulcanization 4 is little again
Time.
Table 3
The test piece prepared in embodiment 7-9 by above-mentioned standard testing batten sample preparation and is tested, specific performance data such as table
Described in 4.
Table 4
Data from table 4 are it can be seen that in 4 third fluorubber, add the embodiment 8 of aramid fiber slurry pool, embodiment 9 ratio in fact
Executing example 7 (contrast) hardness to improve, modulus the most substantially increases, and especially 50% modulus increases nearly 118% and 166% respectively, directly
Angle tearing strength is respectively increased nearly 49% and 84%, and pants type tearing strength has been respectively increased nearly 62% and 99%, anti-extrusion performance
Being obviously improved, anti-gas Quick Depressurization is functional.
Embodiment 10-15
Weigh by formula (weight portion) consumption of embodiment 10-15 shown in table 5 and get the raw materials ready, then by peroxidating fluorine rubber
The raw materials such as glue, white carbon black, aramid fiber slurry pool, vulcanizing agent and processing aid add in mill (same as in Example 1), mixed at 80 DEG C
Refining the most also slice, obtains fluororubber compounded rubber.By this embodiment elastomeric compound, at a temperature of 180 DEG C, 10 minutes one step cure bars
Under part, molded vulcanization becomes standard rubbers test piece, post vulcanization 12 hours again at a temperature of 200 DEG C.
Table 5
The test piece prepared in embodiment 10-15 by standard testing batten sample preparation and is tested, embodiment performance data such as table
Described in 6.
Table 6
Data from table 6 it can be seen thatIn the fluorubber of peroxidating vulcanizing system, add a certain amount of aramid fiber slurry
The embodiment 11 of pool, embodiment 14 all ratio embodiment 10 (contrast) and embodiments 13 (contrast), hardness improves, and modulus is the most obvious
Increasing, tearing strength is improved the most particularly evident, and anti-extrusion performance is obviously improved, and anti-gas Quick Depressurization is functional.
Embodiment 16-18
Weigh by the formula (weight portion) of embodiment 16-18 shown in table 7 and get the raw materials ready, then by bis-phenol vulcanization type fluorine rubber
Glue, white carbon black, aramid fiber slurry pool, calcium hydroxide, magnesium oxide, vulcanizing agent, vulcanization accelerator, white carbon black and remover addition mill (with
Embodiment 1 is identical) in, at 80 DEG C, mixing the most also slice, obtains fluororubber compounded rubber.By this embodiment elastomeric compound, at 180 DEG C
At a temperature of, under the conditions of 10 minutes one step cures, molded vulcanization becomes standard rubbers test piece, post vulcanization 16 again at a temperature of 200 DEG C
Hour.
Table 7
The test piece prepared in embodiment 16-18 by standard testing batten sample preparation and is tested, embodiment performance data such as table 8
Described in.
Table 8, fluorubber embodiment 16-18 performance test table
Data from table 8 it can be seen thatIn the fluorubber of bis-phenol vulcanizing system, add a certain amount of aramid fiber slurry pool
Embodiment 17 improve than embodiment 16 hardness, 50% modulus the most substantially increases, tearing strength improve the most particularly evident, anti-extrusion
Performance is obviously improved, and anti-gas Quick Depressurization is functional.But aramid fiber slurry pool addition is more than 10 parts (weight portions), as implemented
Example 18 formula elastomeric material hardness is the highest, and material becomes fragile, and is not suitable for sealed elastic requirement.
Although for the purpose being aware and understand, the present invention being described in detail, but reading this Shen
Please it will be apparent to those skilled in the art that on the premise of without departing from spirit and substance of the present invention after description, can be right
The present invention carries out various modifications and changes, and these modifications and changes each fall within included by appended claims and equivalents thereto thereof
Within the scope of.
Claims (10)
1. a rubber seal products, it includes:
75-98 weight portion caulking gum polymer；
2-25 weight portion aramid fiber slurry pool；
30-90 parts by weight of rubber filler；
2-15 weight portion vulcanizing agent；With
0-35 parts by weight of rubber auxiliary agent.
2. rubber seal products as claimed in claim 1, it is characterised in that it includes:
78-96 weight portion caulking gum polymer；
4-22 weight portion aramid fiber slurry pool；
35-85 parts by weight of rubber filler；
3-10 weight portion vulcanizing agent；With
1-30 parts by weight of rubber auxiliary agent.
3. rubber seal products as claimed in claim 1 or 2, it is characterised in that described caulking gum polymer includes fourth
Nitrile rubber, fluorine-containing rubber or their mixture, described aramid fiber slurry pool is PPTA (PPTA) aramid fiber
Slurry pool.
4. rubber seal products as claimed in claim 1 or 2, it is characterised in that described filler includes white carbon black.
5. rubber seal products as claimed in claim 4, it is characterised in that described white carbon black is partly by barium sulfate, Linesless charcoal
Black or their mixture is substituted.
6. rubber seal products as claimed in claim 1 or 2, it is characterised in that described rubber chemicals include that sulfuration promotes
Agent, acid-acceptor, plasticizer, age resistor, releasing agent or their mixture.
7. rubber seal products as claimed in claim 1 or 2, it is characterised in that it includes valve seal bar or valve seal
Circle.
8. the preparation method of the rubber seal products as according to any one of claim 1-7, it comprises the steps:
A) by mixing uniformly to caulking gum polymer, aramid fiber slurry pool, gum filler, vulcanizing agent and rubber chemicals；With
B) molding and sulfuration.
9. the application in valve seal of the rubber seal products as according to any one of claim 1-7.
Apply the most as claimed in claim 9, it is characterised in that described valve is high pressure valve.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106751237A (en) * | 2016-12-22 | 2017-05-31 | 浙江中科应化科技有限公司 | A kind of ship pipeline system seal washer and preparation method thereof |
| CN106916352A (en) * | 2017-04-11 | 2017-07-04 | 苏州松之叶精密机械配件有限公司 | It is a kind of to possess ultra-strong elasticity, oil resistant, ageing-resistant high-performance sealed circle |
| CN107814992A (en) * | 2017-12-14 | 2018-03-20 | 山东科技大学 | A kind of the rubber sizing material and preparation method of the heat-resisting system of hydrogenated nitrile-butadiene rubber |
| CN108641152A (en) * | 2018-05-16 | 2018-10-12 | 安徽三环水泵有限责任公司 | A kind of creep resisting pump valve seal pad of anti-corrosion |
| CN113214524A (en) * | 2021-06-11 | 2021-08-06 | 四川大学 | Friction-resistant high-shear-resistant composite rubber sealing material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751237A (en) * | 2016-12-22 | 2017-05-31 | 浙江中科应化科技有限公司 | A kind of ship pipeline system seal washer and preparation method thereof |
| CN106751237B (en) * | 2016-12-22 | 2019-05-31 | 浙江中科应化科技有限公司 | A kind of ship pipeline system seal washer and preparation method thereof |
| CN106916352A (en) * | 2017-04-11 | 2017-07-04 | 苏州松之叶精密机械配件有限公司 | It is a kind of to possess ultra-strong elasticity, oil resistant, ageing-resistant high-performance sealed circle |
| CN107814992A (en) * | 2017-12-14 | 2018-03-20 | 山东科技大学 | A kind of the rubber sizing material and preparation method of the heat-resisting system of hydrogenated nitrile-butadiene rubber |
| CN108641152A (en) * | 2018-05-16 | 2018-10-12 | 安徽三环水泵有限责任公司 | A kind of creep resisting pump valve seal pad of anti-corrosion |
| CN113214524A (en) * | 2021-06-11 | 2021-08-06 | 四川大学 | Friction-resistant high-shear-resistant composite rubber sealing material |
| CN113214524B (en) * | 2021-06-11 | 2022-06-07 | 四川大学 | Friction-resistant high-shear-resistant composite rubber sealing material |
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| CN105860179B (en) | 2017-12-12 |
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