CN109929163A - A kind of Novel X-shaped section seal - Google Patents
A kind of Novel X-shaped section seal Download PDFInfo
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- CN109929163A CN109929163A CN201711348148.4A CN201711348148A CN109929163A CN 109929163 A CN109929163 A CN 109929163A CN 201711348148 A CN201711348148 A CN 201711348148A CN 109929163 A CN109929163 A CN 109929163A
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- Prior art keywords
- novel
- shaped section
- carbon black
- section seal
- agent
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- 239000006229 carbon black Substances 0.000 claims abstract description 35
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000004902 Softening Agent Substances 0.000 claims abstract description 15
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 14
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 14
- 238000004132 cross linking Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 3
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid group Chemical group C(CCCCC(=O)O)(=O)O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 14
- -1 Propyl isocyanuric acid ester Chemical class 0.000 claims description 13
- 235000011037 adipic acid Nutrition 0.000 claims description 7
- 239000001361 adipic acid Substances 0.000 claims description 7
- 125000004494 ethyl ester group Chemical group 0.000 claims description 7
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 2
- OKIRBHVFJGXOIS-UHFFFAOYSA-N 1,2-di(propan-2-yl)benzene Chemical compound CC(C)C1=CC=CC=C1C(C)C OKIRBHVFJGXOIS-UHFFFAOYSA-N 0.000 claims 2
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 150000002978 peroxides Chemical group 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 9
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 7
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical group C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- MOVRNJGDXREIBM-UHFFFAOYSA-N aid-1 Chemical compound O=C1NC(=O)C(C)=CN1C1OC(COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C(NC(=O)C(C)=C2)=O)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C(NC(=O)C(C)=C2)=O)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C(NC(=O)C(C)=C2)=O)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)CO)C(O)C1 MOVRNJGDXREIBM-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Abstract
A kind of Novel X-shaped section seal, percentage component by weight are as follows: hydrogenated nitrile-butadiene rubber 42-43%, softening agent 2-3%, carbon black 50-51%, bridging agent 1-2%, cross-linking aid 0.5-1%, anti-aging agent 0.5-1% flows antiflatulent 0.05-0.1%, processing aid 1-1.5%；Completely cut off sulfide in the raw material mixed process of Novel X-shaped section quartering hammer sealing element.Reduce the maintenance cost in equipment manufacturing costs and quality guarantee period.The number for reducing replacement sealing element for the terminal client for using quartering hammer, there is better ageing resistance, while reducing maintenance cost and improving production efficiency.So that the low temperature resistant temperature of sealing ring is dropped to -40 DEG C, improves equipment in the use ability of extremely frigid zones.
Description
Technical field
The present invention relates to mechanical fitting field more particularly to a kind of quartering hammer sealing elements.
Background technique
Mechanical sealing member belongs to one of accurate, more complicated Mechanical Fundamentals element of structure, is various pump classes, reaction synthesis
The critical component of the equipment such as kettle, turbocompressor, submersible motor.
The physical characteristic of natural rubber.Natural rubber elasticity with higher at normal temperature, slightly band plasticity, it is very good to have
Mechanical strength, hysteresis loss is small, and in multiple deformation, heat is low, therefore its flexible resistance is also fine, and because is non-pole
Property rubber, so electrical insulation capability is good.
The power resources of hydraulic breaking hammer are the pressure oil of the pumping plant offer of excavator or loading machine, it can build excavating
The soil in the stone and rock crevice of floating is more effectively cleared up in the effect on object basis.Selecting the principle of hydraulic breaking hammer is
Most suitable hydraulic breaking hammer is selected according to the environment of excavator model, operation.
Existing quartering hammer sealing element is all the fluorubber manufacture production used, and finished product is at high price, and fluorubber
Product low temperature tolerance ability is poor, and minimum preferable use temperature is -20 DEG C, and ageing resistance is poor, is not suitable for quartering hammer and dislikes
Bad use environment.It eventually leads to equipment manufacturer and increases manufacturing cost, also increase maintenance of equipment cost.
Summary of the invention
To solve the above-mentioned problems, the present invention adopts the following technical scheme:
A kind of Novel X-shaped section seal, the percentage group of the Novel X-shaped section quartering hammer sealing element by weight
Part are as follows: hydrogenated nitrile-butadiene rubber 42-43%, softening agent 2-3%, carbon black 50-51%, bridging agent 1-2%, cross-linking aid 0.5-1%,
Anti-aging agent 0.5-1% flows antiflatulent 0.05-0.1%, processing aid 1-1.5%；Novel X-shaped section quartering hammer sealing element
Completely cut off sulfide in raw material mixed process.
Preferably, softening agent is adipic acid two [2- (2- Butoxyethoxy) ethyl ester].
Preferably, bridging agent is cumyl peroxide.
Preferably, cross-linking aid is Triallyl isocyanurate.
Preferably, bis- (the α α-dimethylbenzyl) diphenylamines of anti-aging agent 4.4 '-.
Preferably, flowing antiflatulent is the mixture of hydrocarbon and surfactant.
Preferably, processing aid is stearic acid or wax.
Preferably, carbon black is made of N990 carbon black and N550 carbon black, and N990 carbon black and N550 carbon black mass account for component respectively
The 29-30% and 21-22% of gross mass.
The beneficial effects of the present invention are:
Improve sealing element low temperature tolerance ability, ageing resistance and durability.It reduces and sets when it is applied to quartering hammer
Maintenance cost in standby manufacturing cost and quality guarantee period reduces time of replacement sealing element for the terminal client for using quartering hammer
Number reduces maintenance cost and improves work efficiency, so that the low temperature resistant temperature of sealing ring is dropped to -40 DEG C, improve equipment and exist
The use ability of extremely frigid zones.
Specific embodiment
The present invention is further detailed below:
A kind of Novel X-shaped section seal, the percentage component of composition formula by weight are as follows: hydrogenated nitrile-butadiene rubber
42-43%, softening agent 2-3%, carbon black 50-51%, bridging agent 1-2%, cross-linking aid 0.5-1%, anti-aging agent 0.5-1%, stream
Dynamic antiflatulent 0.05-0.1%, processing aid 1-1.5%.
It needs to completely cut off sulfidic material completely in a kind of raw material mixed process of above-mentioned Novel X-shaped section seal.
It is agglomerating by being mixed in all material used device；With mill gluing equipment by the thin pass-out piece of pockets of material at needs
Thickness, then by cutting apparatus, the weight of needs is cut into, then sealing system is produced with particular manufacturing craft and vulcanization of rubber equipment
Product.
The softening agent for consolidating cryogenic property is added in hydrogenated nitrile-butadiene rubber, hydrogenated nitrile-butadiene rubber low temperature tolerance ability is enable to reach
To -40 DEG C.
Embodiment 1
Hydrogenated nitrile-butadiene rubber 42.34%, adipic acid two [2- (2- Butoxyethoxy) ethyl ester] 2.95%, carbon black N990
29.64%, carbon black N550 21.17%, cumyl peroxide 1.06%, Triallyl isocyanurate 0.64%, 4.4 '-
Bis- (α α-dimethylbenzyl) diphenylamines 0.85% flow antiflatulent PW 0.08%, polyethylene wax 1.27%.
Embodiment 2
Hydrogenated nitrile-butadiene rubber 42%, adipic acid two [2- (2- Butoxyethoxy) ethyl ester] 2%, carbon black N990 30%, charcoal
Black N550 21%, cumyl peroxide 1.4%, Triallyl isocyanurate 1%, 4.4 '-bis- (α α-dimethylbenzyls)
Diphenylamines 1% flows antiflatulent PW 0.1%, polyethylene wax 1.5%.
Embodiment 3
Hydrogenated nitrile-butadiene rubber 43%, adipic acid two [2- (2- Butoxyethoxy) ethyl ester] 2%, carbon black N990 29%, charcoal
Black N550 22%, cumyl peroxide 1.95%, Triallyl isocyanurate 0.5%, 4.4 '-bis- (α alpha-alpha-dimethyl benzyls
Base) diphenylamines 0.5%, flows antiflatulent PW 0.05%, polyethylene wax 1%.
Embodiment 4
Hydrogenated nitrile-butadiene rubber 42%, adipic acid two [2- (2- Butoxyethoxy) ethyl ester] 3%, carbon black N990 29%, charcoal
Black N550 21%, cumyl peroxide 2%, Triallyl isocyanurate 1%, 4.4 '-bis- (α α-dimethylbenzyls) two
Aniline 0.5% flows antiflatulent PW 0.1%, polyethylene wax 1.4%.
Embodiment 5
Hydrogenated nitrile-butadiene rubber 43%, adipic acid two [2- (2- Butoxyethoxy) ethyl ester] 3%, carbon black N990 29%, charcoal
Black N550 21%, cumyl peroxide 1%, Triallyl isocyanurate 1%, 4.4 '-bis- (α α-dimethylbenzyls) two
Aniline 0.5% flows antiflatulent PW 0.1%, polyethylene wax 1.4%.
Burn-in test is carried out to embodiment 1-5, every group of embodiment set 3 finished products, respectively high temperature, low temperature and at room temperature into
Row test:
The hardness (shore) of finished product is first tested before ageing, and finished product is then placed in a timing in the ageing oven set
Between, the hardness (shore) of finished product is tested after taking-up；By hardness number comparison before and after aging, change rate is calculated, hardness change is got over
Small then its ageing resistance is stronger.
Test condition is as shown in the table:
1 embodiment test condition of table
Test result is as follows shown in table:
2 embodiment ageing test result of table
Above-mentioned test result shows that ageing resistance in the case where high/low temperature of finished product made of formula of the invention compares
It is relatively strong, more adverse circumstances are adapted to applied to quartering hammer sealing element.
In order to preferably show the features of the present invention, several groups of comparative experimentss are carried out, here is several groups of comparative experimentss
Test result:
Sample 1: hydrogenated nitrile-butadiene rubber 42.34%, softening agent 2.95%, carbon black N990 29.64%, carbon black N550
21.17%, bridging agent 1.06%, cross-linking aid 0.64%, anti-aging agent 0.85%, flowing antiflatulent 0.08%, processing aid
1.27%.
Sample 2: fluorubber 42.34%, softening agent 2.95%, carbon black N990 29.64%, carbon black N550 21.17%, frame
Bridge agent 1.06%, cross-linking aid 0.64%, anti-aging agent 0.85% flow antiflatulent 0.08%, processing aid 1.27%.
Sample 3: hydrogenated nitrile-butadiene rubber 35%, softening agent 5%, carbon black N990 31%, carbon black N550 22%, bridging agent
2%, cross-linking aid 1%, anti-aging agent 1% flows antiflatulent 1%, processing aid 2%.
Sample 4: hydrogenated nitrile-butadiene rubber 50%, softening agent 2.5%, carbon black N990 26%, carbon black N550 19%, bridging agent
1%, cross-linking aid 0.5%, anti-aging agent 0.5% flows antiflatulent 0.00%, processing aid 0.5%.
Sample 5: fluorubber 50%, softening agent 2.5%, carbon black N990 26%, carbon black N550 19%, bridging agent 1% are handed over
Join auxiliary agent 0.5%, anti-aging agent 0.5% flows antiflatulent 0.00%, processing aid 0.5%.
Sample 6: hydrogenated nitrile-butadiene rubber 42.34%, softening agent 0.5%, carbon black N990 30.64%, carbon black N550
22.62%, bridging agent 1.06%, cross-linking aid 0.64%, anti-aging agent 0.85%, flowing antiflatulent 0.08%, processing aid
1.27%.
Sample 7: hydrogenated nitrile-butadiene rubber 42.34%, softening agent 5%, carbon black N990 28.64%, carbon black N550
20.02%, bridging agent 1.06%, cross-linking aid 0.64%, anti-aging agent 0.85%, flowing antiflatulent 0.08%, processing aid
1.27%.
The model that the component of above-mentioned sample 1-7 is chosen are as follows: softening agent model TP95, carbon black are two kinds of types of N990 and N550
Number mixture, bridging agent model DCP, cross-linking aid model TAIC, anti-aging agent model 445, flow antiflatulent model
For PW, processing aid model AC617.
Performance detection is carried out to quartering hammer sealing ring made of sample 1-7 component formula, testing result is as shown in the table:
3 each group properties of sample parameter list of table
In the present invention, by selecting suitable raw material, the proportion of each raw material is adjusted, keeps a kind of above-mentioned Novel X-shaped section close
Sealing has that good resistance to low temperature, compression set is small, fuel oil resistance performance is good, sealed reliable, uses the long spy that waits so long
Property.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of Novel X-shaped section seal, it is characterised in that: its percentage component by weight are as follows:
Hydrogenated nitrile-butadiene rubber 42-43%,
Softening agent 2-3%,
Carbon black 50-52%,
Bridging agent 1-2%,
Cross-linking aid 0.5-1%,
Anti-aging agent 0.5-1%,
Antiflatulent 0.05-0.1% is flowed,
Processing aid 1-1.5%；
Completely cut off sulfide in the raw material mixed process of the Novel X-shaped section quartering hammer sealing element.
2. a kind of Novel X-shaped section seal according to claim 1, it is characterised in that: the softening agent is adipic acid
Two [2-(2- Butoxyethoxy) ethyl ester].
3. a kind of Novel X-shaped section seal according to claim 1, it is characterised in that: the bridging agent is peroxide
Change diisopropylbenzene (DIPB).
4. a kind of Novel X-shaped section seal according to claim 1, it is characterised in that: the cross-linking aid is triolefin
Propyl isocyanuric acid ester.
5. a kind of Novel X-shaped section seal according to claim 1, it is characterised in that: the anti-aging agent is 4.4 '-bis-
(α α-dimethylbenzyl) diphenylamines.
6. a kind of Novel X-shaped section seal according to claim 1, it is characterised in that: the flowing antiflatulent is carbon
The mixture of hydrogen compound and surfactant.
7. a kind of Novel X-shaped section seal according to claim 1, it is characterised in that: the processing aid is tristearin
Acid or wax.
8. a kind of Novel X-shaped section seal according to claim 1, it is characterised in that: the carbon black is by N990 carbon black
It is formed with N550 carbon black, the quality of the N990 carbon black and N550 carbon black accounts for the 29-30% and 21-22% of component gross mass respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348148.4A CN109929163A (en) | 2017-12-15 | 2017-12-15 | A kind of Novel X-shaped section seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711348148.4A CN109929163A (en) | 2017-12-15 | 2017-12-15 | A kind of Novel X-shaped section seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109929163A true CN109929163A (en) | 2019-06-25 |
Family
ID=66979691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711348148.4A Pending CN109929163A (en) | 2017-12-15 | 2017-12-15 | A kind of Novel X-shaped section seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109929163A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980067A (en) * | 2021-03-01 | 2021-06-18 | 深圳市鑫华煦橡胶制品有限公司 | Temperature-resistant hydrogenated nitrile rubber |
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| CN102002176A (en) * | 2010-12-02 | 2011-04-06 | 天津鹏翎胶管股份有限公司 | Hydrogenated nitrile-butadiene rubber composition |
| CN106084367A (en) * | 2016-06-13 | 2016-11-09 | 安徽越天特种车桥有限公司 | A kind of automobile hub bearing sealing ring and preparation method thereof |
| CN106188692A (en) * | 2016-07-30 | 2016-12-07 | 北京化工大学 | A kind of wind-power electricity generation special (purpose) rubber sealing strip sizing material and preparation technology thereof |
| CN106543505A (en) * | 2016-12-09 | 2017-03-29 | 南阳天密封股份有限公司 | A kind of high-performance acrylonitrile butadiene packing material and preparation method thereof |
| CN107002881A (en) * | 2014-11-28 | 2017-08-01 | 爱尔铃克铃尔股份公司 | Seal and the method for manufacturing seal |
-
2017
- 2017-12-15 CN CN201711348148.4A patent/CN109929163A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002176A (en) * | 2010-12-02 | 2011-04-06 | 天津鹏翎胶管股份有限公司 | Hydrogenated nitrile-butadiene rubber composition |
| CN107002881A (en) * | 2014-11-28 | 2017-08-01 | 爱尔铃克铃尔股份公司 | Seal and the method for manufacturing seal |
| CN106084367A (en) * | 2016-06-13 | 2016-11-09 | 安徽越天特种车桥有限公司 | A kind of automobile hub bearing sealing ring and preparation method thereof |
| CN106188692A (en) * | 2016-07-30 | 2016-12-07 | 北京化工大学 | A kind of wind-power electricity generation special (purpose) rubber sealing strip sizing material and preparation technology thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980067A (en) * | 2021-03-01 | 2021-06-18 | 深圳市鑫华煦橡胶制品有限公司 | Temperature-resistant hydrogenated nitrile rubber |
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Application publication date: 20190625 |