CN105968452B - Good sealing gasket of a kind of oil resistivity and wearability and preparation method thereof - Google Patents
Good sealing gasket of a kind of oil resistivity and wearability and preparation method thereof Download PDFInfo
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- CN105968452B CN105968452B CN201610354046.2A CN201610354046A CN105968452B CN 105968452 B CN105968452 B CN 105968452B CN 201610354046 A CN201610354046 A CN 201610354046A CN 105968452 B CN105968452 B CN 105968452B
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- sealing gasket
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- galapectite
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- 238000007789 sealing Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 22
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 18
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 13
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 13
- 239000011651 chromium Substances 0.000 claims abstract description 13
- 229910021392 nanocarbon Inorganic materials 0.000 claims abstract description 13
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 13
- 229920001194 natural rubber Polymers 0.000 claims abstract description 13
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 13
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 11
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000006229 carbon black Substances 0.000 claims abstract description 11
- 239000004359 castor oil Substances 0.000 claims abstract description 11
- 235000019438 castor oil Nutrition 0.000 claims abstract description 11
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 11
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 11
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 11
- 239000011787 zinc oxide Substances 0.000 claims abstract description 11
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 11
- JBSLOWBPDRZSMB-FPLPWBNLSA-N dibutyl (z)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C/C(=O)OCCCC JBSLOWBPDRZSMB-FPLPWBNLSA-N 0.000 claims abstract description 10
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 9
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- -1 deficiency Substances 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims 1
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 description 5
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- PVGBHEUCHKGFQP-UHFFFAOYSA-N sodium;n-[5-amino-2-(4-aminophenyl)sulfonylphenyl]sulfonylacetamide Chemical compound [Na+].CC(=O)NS(=O)(=O)C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 PVGBHEUCHKGFQP-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
Classifications
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- 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
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- 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
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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
- C08K3/38—Boron-containing compounds
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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- C08L93/00—Compositions of natural resins; Compositions of derivatives thereof
- C08L93/04—Rosin
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- C08K2201/011—Nanostructured additives
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Oil, Petroleum & Natural Gas (AREA)
- Sealing Material Composition (AREA)
- Gasket Seals (AREA)
- Tires In General (AREA)
Abstract
The invention discloses good sealing gasket of a kind of oil resistivity and wearability and preparation method thereof, it is related to sealing gasket technical field, is mainly made up of nitrile rubber, natural rubber, silicon rubber, galapectite, ball-shaped silicon micro powder, carbon black N660, zinc stearate, dibutyl maleate, zinc oxide, alundum (Al2O3), polyethylene glycol, sodium tripolyphosphate, Silane coupling agent KH550, nanometer chromium boride, nano carbon sol, anti-aging agent RD, rosin, castor oil.The sealing gasket of the present invention uses nitrile rubber as primary raw material, oil resistivity and wearability are good, collocation natural rubber, silicon rubber, the addition of the composition such as deficiency, chromium boride, galapectite, nano carbon sol of the nitrile rubber in terms of elasticity and cold resistance is compensate for, can not only improve the tensile resistance and mechanical property of sealing gasket, the wearability and ageing resistance of sealing gasket can also be improved, the sealing gasket overall performance produced is good, strong applicability, service life length.
Description
Technical field
The present invention relates to sealing gasket technical field, the good sealing gasket of more specifically a kind of oil resistivity and wearability and its
Preparation method.
Background technology
Sealing gasket, it is that a kind of machinery, equipment, pipeline etc. of being used for is internal, the material to seal.Sealing gasket has resistance to
The performance such as oil, acid and alkali-resistance, resistance to fever and chills, ageing-resistant, therefore it is widely used in automobile, electronics, chemical industry, antistatic, fire-retardant, food
Etc. industry.It is rubber gasket purposes and very extensive, there is one layer of rubber blanket above the drink lids that we usually drink, that
It is individual to be used for sealing, completely cut off the circulation with outside air with this.Mechanically the operation principle in face has static and dynamic
State.All be in a word for carrying out with extraneous or somewhere completely cut off, sealing gasket operation principle be also all it is very simple, can
What, to say being without too many principle, exactly isolate.However, existing sealing gasket poor flexibility, oil resistivity, wearability and strong
Degree is also undesirable, can not meet the requirement of society gradually.
The content of the invention
The invention aims to make up the deficiencies in the prior art, there is provided the good sealing gasket of a kind of oil resistivity and wearability
And preparation method thereof.
The purpose of the present invention is achieved through the following technical solutions：
The good sealing gasket of a kind of oil resistivity and wearability, is made up of following raw material：It is nitrile rubber 52-56, natural
Rubber 6-8, silicon rubber 8-10, galapectite 7-9, ball-shaped silicon micro powder 4-6, carbon black N660 22-24, zinc stearate 1-3, maleic
Adipate 2-4, zinc oxide 3-5, alundum (Al2O3) 2-4, polyethylene glycol 2-4, sodium tripolyphosphate 1-3, silane coupler
KH5501-3, nanometer chromium boride 2-4, nano carbon sol 2-4, anti-aging agent RD 1-3, rosin 2-4, castor oil 1-3.
The preparation method of the good sealing gasket of a kind of oil resistivity and wearability, comprises the following steps：
（1）Galapectite is calcined into 3-5 hours at 460-500 DEG C, takes out, cool down, smash, then adds trimerization phosphorus
Sour sodium, nanometer chromium boride, Silane coupling agent KH550 is sprayed into after mixing 35-45 minutes, is stirred under 14000-16000r/min
55-65 minutes are mixed, it is standby to obtain modified galapectite；
（2）Ball-shaped silicon micro powder, carbon black N660, zinc oxide, alundum (Al2O3), nano carbon sol and appropriate water are mixed
Close, add dibutyl maleate and polyethylene glycol, in 80-90 DEG C, 1200-1400r/min stirring 6-8 minutes, then
The rapid rosin for instilling melting simultaneously continues to stir 12-14 minutes, cooled and filtered, is ground to after 100-120 DEG C of drying completely
100-200 mesh, it is standby；
（3）Nitrile rubber, natural rubber, silicon rubber are mixed, then add zinc stearate, castor oil, 55-65 DEG C of stirring
It is 1-3 hours, standby；
（4）By step（1）, step（2）And step（3）Middle raw material is mixed and added into reactor, mixed at 105-115 DEG C
14-16 minutes are closed, other surplus stocks is then added and mixes 1-2 hours in 70-90 DEG C, finally with double screw extruder 220-
260 DEG C of extrusions, are produced after mould machine-shaping.
The advantage of the invention is that：
The sealing gasket of the present invention uses nitrile rubber as primary raw material, and oil resistivity and wearability are good, collocation natural rubber, silicon
Rubber, it compensate for the composition such as deficiency, chromium boride, galapectite, nano carbon sol of the nitrile rubber in terms of elasticity and cold resistance
Addition, the tensile resistance and mechanical property of sealing gasket can be not only improved, the wearability of sealing gasket and anti-ageing can also be improved
The property changed, the sealing gasket overall performance produced is good, strong applicability, service life length.
Embodiment
Embodiment 1, the good sealing gasket of a kind of oil resistivity and wearability, by following parts by weight（kg）Raw material is made：Butyronitrile rubber
Glue 52, natural rubber 6, silicon rubber 8, galapectite 7, ball-shaped silicon micro powder 4, carbon black N660 22, zinc stearate 1, maleic acid
Dibutyl ester 2, zinc oxide 3, alundum (Al2O3) 2, polyethylene glycol 2, sodium tripolyphosphate 1, Silane coupling agent KH550 1, nanometer chromium boride
2nd, nano carbon sol 2, anti-aging agent RD 1, rosin 2, castor oil 1.
The preparation method of the good sealing gasket of a kind of oil resistivity and wearability, comprises the following steps：
（1）Galapectite is calcined 3 hours at 460 DEG C, takes out, cool down, smash, then add sodium tripolyphosphate,
Nanometer chromium boride, sprays into Silane coupling agent KH550 after mixing 35 minutes, stirs 55 minutes, must change under 14000r/min
Property galapectite is standby；
（2）Ball-shaped silicon micro powder, carbon black N660, zinc oxide, alundum (Al2O3), nano carbon sol and appropriate water are mixed
Close, add dibutyl maleate and polyethylene glycol, stirred 6 minutes in 80 DEG C, 1200r/min, then rapid instillation is molten
The rosin that melts simultaneously continues stirring 12 minutes, cooled and filtered, 100 mesh is ground to after 100 DEG C of drying are complete, standby；
（3）Nitrile rubber, natural rubber, silicon rubber are mixed, then add zinc stearate, castor oil, 55 DEG C of stirrings 1 are small
When, it is standby；
（4）By step（1）, step（2）And step（3）Middle raw material is mixed and added into reactor, and 14 are mixed at 105 DEG C
Minute, then add other surplus stocks and mixed in 70 DEG C 1 hour, finally with 220 DEG C of extrusions of double screw extruder, mould processing
Produced after shaping.
Embodiment 2, the good sealing gasket of a kind of oil resistivity and wearability, by following parts by weight（kg）Raw material is made：Butyronitrile rubber
Glue 54, natural rubber 7, silicon rubber 9, galapectite 8, ball-shaped silicon micro powder 5, carbon black N660 23, zinc stearate 2, maleic acid
Dibutyl ester 3, zinc oxide 4, alundum (Al2O3) 3, polyethylene glycol 3, sodium tripolyphosphate 2, Silane coupling agent KH550 2, nanometer chromium boride
3rd, nano carbon sol 3, anti-aging agent RD 2, rosin 3, castor oil 2.
The preparation method of the good sealing gasket of a kind of oil resistivity and wearability, comprises the following steps：
（1）Galapectite is calcined 4 hours at 480 DEG C, takes out, cool down, smash, then add sodium tripolyphosphate,
Nanometer chromium boride, sprays into Silane coupling agent KH550 after mixing 40 minutes, stirs 60 minutes, must change under 15000r/min
Property galapectite is standby；
（2）Ball-shaped silicon micro powder, carbon black N660, zinc oxide, alundum (Al2O3), nano carbon sol and appropriate water are mixed
Close, add dibutyl maleate and polyethylene glycol, stirred 7 minutes in 85 DEG C, 1300r/min, then rapid instillation is molten
The rosin that melts simultaneously continues stirring 13 minutes, cooled and filtered, 150 mesh is ground to after 110 DEG C of drying are complete, standby；
（3）Nitrile rubber, natural rubber, silicon rubber are mixed, then add zinc stearate, castor oil, 60 DEG C of stirrings 2 are small
When, it is standby；
（4）By step（1）, step（2）And step（3）Middle raw material is mixed and added into reactor, and 15 are mixed at 110 DEG C
Minute, then add other surplus stocks and mixed in 80 DEG C 1 hour, finally with 240 DEG C of extrusions of double screw extruder, mould processing
Produced after shaping.
Embodiment 3, the good sealing gasket of a kind of oil resistivity and wearability, by following parts by weight（kg）Raw material is made：Butyronitrile rubber
Glue 56, natural rubber 8, silicon rubber 10, galapectite 9, ball-shaped silicon micro powder 6, carbon black N660 24, zinc stearate 3, maleic acid
Dibutyl ester 4, zinc oxide 5, alundum (Al2O3) 4, polyethylene glycol 4, sodium tripolyphosphate 3, Silane coupling agent KH550 3, nanometer chromium boride
4th, nano carbon sol 4, anti-aging agent RD 3, rosin 4, castor oil 3.
The preparation method of the good sealing gasket of a kind of oil resistivity and wearability, comprises the following steps：
（1）Galapectite is calcined 5 hours at 500 DEG C, takes out, cool down, smash, then add sodium tripolyphosphate,
Nanometer chromium boride, sprays into Silane coupling agent KH550 after mixing 45 minutes, stirs 65 minutes, must change under 16000r/min
Property galapectite is standby；
（2）Ball-shaped silicon micro powder, carbon black N660, zinc oxide, alundum (Al2O3), nano carbon sol and appropriate water are mixed
Close, add dibutyl maleate and polyethylene glycol, stirred 8 minutes in 90 DEG C, 1400r/min, then rapid instillation is molten
The rosin that melts simultaneously continues stirring 14 minutes, cooled and filtered, 200 mesh is ground to after 120 DEG C of drying are complete, standby；
（3）Nitrile rubber, natural rubber, silicon rubber are mixed, then add zinc stearate, castor oil, 65 DEG C of stirrings 3
Hour, it is standby；
（4）By step（1）, step（2）And step（3）Middle raw material is mixed and added into reactor, and 16 are mixed at 115 DEG C
Minute, then add other surplus stocks and mixed in 90 DEG C 2 hours, finally with 260 DEG C of extrusions of double screw extruder, mould processing
Produced after shaping.
The main performance testing result of sealing gasket made from above-described embodiment 1-3 is as shown in the table：
The main performance testing result of sealing gasket made from the embodiment 1-3 of table 1
Claims (1)
1. a kind of oil resistivity and the good sealing gasket of wearability, it is characterised in that：It is made up of following raw material：Nitrile rubber
52-56, natural rubber 6-8, silicon rubber 8-10, galapectite 7-9, ball-shaped silicon micro powder 4-6, carbon black N660 22-24, zinc stearate
1-3, dibutyl maleate 2-4, zinc oxide 3-5, alundum (Al2O3) 2-4, polyethylene glycol 2-4, sodium tripolyphosphate 1-3, silicon
Alkane coupling agent KH550 1-3, nanometer chromium boride 2-4, nano carbon sol 2-4, anti-aging agent RD 1-3, rosin 2-4, castor oil 1-3；
The preparation method of the good sealing gasket of above-mentioned a kind of oil resistivity and wearability is as follows：
(1) galapectite is calcined into 3-5 hours at 460-500 DEG C, takes out, cools down, smashes, then add tripolyphosphate
Sodium, nanometer chromium boride, Silane coupling agent KH550 is sprayed into after mixing 35-45 minutes, is stirred under 14000-16000r/min
55-65 minutes, it is standby to obtain modified galapectite；
(2) ball-shaped silicon micro powder, carbon black N660, zinc oxide, alundum (Al2O3), nano carbon sol and appropriate water are mixed, then
Dibutyl maleate and polyethylene glycol are added, in 80-90 DEG C, 1200-1400r/min stirring 6-8 minutes, is then dripped rapidly
Enter the rosin of melting and continue to stir 12-14 minutes, cooled and filtered, 100-200 is ground to after 100-120 DEG C of drying completely
Mesh, it is standby；
(3) nitrile rubber, natural rubber, silicon rubber are mixed, then adds zinc stearate, castor oil, 55-65 DEG C of stirring 1-3
Hour, it is standby；
(4) raw material in step (1), step (2) and step (3) is mixed and added into reactor, in 105-115 DEG C of mixing
14-16 minutes, then add other surplus stocks and mix 1-2 hours in 70-90 DEG C, finally with double screw extruder 220-260
DEG C extrusion, produced after mould machine-shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106432835A (en) * | 2016-09-20 | 2017-02-22 | 东营咸亨工贸有限公司 | Sealing material and full-functional shaft mouth sealing box containing sealing material |
| CN106674650A (en) * | 2016-12-19 | 2017-05-17 | 苏州金威特工具有限公司 | Low-temperature-resistant rubber |
| CN109749377A (en) * | 2017-11-03 | 2019-05-14 | 丹阳市贝尔特橡塑制品有限公司 | A kind of anti-aging rubber gasket |
| CN108893076A (en) * | 2018-06-21 | 2018-11-27 | 厦门华厦学院 | A kind of high-performance masking tape and preparation method thereof |
| CN110330700A (en) * | 2019-07-16 | 2019-10-15 | 安徽升隆电气有限公司 | A kind of sensor highly dense closure material and preparation method thereof |
| CN115926553B (en) * | 2022-12-13 | 2023-08-01 | 雅图高新材料股份有限公司 | High-permeability scratch-resistant automobile matte varnish and preparation method thereof |
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| CN103102529B (en) * | 2012-12-11 | 2015-06-10 | 芜湖恒坤汽车部件有限公司 | High-pressure self-packing leather cup rubber for packer and preparation method thereof |
| CN103102530B (en) * | 2012-12-11 | 2015-06-10 | 芜湖恒坤汽车部件有限公司 | Packing leather cup rubber for hydraulic mount and preparation method thereof |
| CN103351559A (en) * | 2013-06-24 | 2013-10-16 | 安徽春辉仪表线缆集团有限公司 | Tetrafluoroethylene-propylene rubber/silicone rubber/chloroprene rubber composite sealing pad and preparation method thereof |
| CN103351493A (en) * | 2013-06-24 | 2013-10-16 | 安徽春辉仪表线缆集团有限公司 | High-performance rubber sealing gasket and preparation method thereof |
| CN103709533A (en) * | 2013-12-16 | 2014-04-09 | 芜湖万润机械有限责任公司 | Multi-rubber compounded sealing gasket material and preparation method thereof |
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Effective date of registration: 20190522 Address after: 226400 Gaoqian Village, Shuangdian Town, Rudong County, Nantong City, Jiangsu Province Patentee after: Nantong Dingjia Rubber Technology Co., Ltd. Address before: 325000 Tongpuling South Village, Taoshan Town, Ruian City, Wenzhou City, Zhejiang Province Patentee before: Huang Jiawei |