CN115260620A - Hydrogenated nitrile rubber gas sealing element with good weather resistance - Google Patents
Hydrogenated nitrile rubber gas sealing element with good weather resistance Download PDFInfo
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- CN115260620A CN115260620A CN202210981435.3A CN202210981435A CN115260620A CN 115260620 A CN115260620 A CN 115260620A CN 202210981435 A CN202210981435 A CN 202210981435A CN 115260620 A CN115260620 A CN 115260620A
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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
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
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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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- 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 relates to the technical field of sealing elements, in particular to a hydrogenated nitrile rubber gas sealing element with good weather resistance, which comprises the following components in parts by weight: 80-120 parts of hydrogenated nitrile rubber, 20-30 parts of PVC resin, 5-8 parts of polytetrafluoroethylene, 7-10 parts of polylactic acid fiber, 4-6 parts of magnesium oxide, 0.3-0.7 part of stearic acid, 3-6 parts of a vulcanizing agent, 1-3 parts of a vulcanization retarder, 0.3-0.4 part of a vulcanization accelerator, 0.2-1 part of an anti-aging agent, 1-3 parts of a rubber plasticizer and 0.5-2 parts of a rubber defoamer; the sealing element provided by the invention has better weather resistance, has the characteristics of low temperature resistance, aging resistance, high temperature resistance and the like, can be used in a low-temperature environment, is suitable for a high-temperature environment, can be used in a plurality of temperature environments, is suitable for the standard of European gas meters and is beneficial to export, has the characteristic of aging resistance, has longer service life, effectively reduces the failure rate of the gas meters, and solves the problems that the existing sealing elements of the gas meters have poor weather resistance and are difficult to adapt to the high-temperature environment or the low-temperature environment.
Description
Technical Field
The invention relates to the technical field of sealing elements, in particular to a hydrogenated nitrile rubber fuel gas sealing element with good weather resistance.
Background
The common household membrane gas meter has the advantages that the common household membrane gas meter is difficult to charge, the labor cost of meter reading personnel is high, and gas theft cannot be really monitored, so that the operating cost is continuously increased for a gas company, a lot of troubles are brought to operation management, and various intelligent gas meters are gradually sold, so that the problem of headache in the operation of the gas company is solved. The IC card meter, the CPU card intelligent gas meter, the wired remote gas meter, the wireless remote gas meter, the network type infrared data transmission gas meter and the like appear in succession. With the popularization and use of natural gas, intelligent gas meters become the development trend of the gas meter industry, the yield of the intelligent gas meters increases rapidly at a speed of about 25% in the last five years, about 2000 tens of thousands of intelligent gas meters are produced every year at present, and the number of newly added users of the intelligent gas meters accounts for about 60% of the number of the newly added users of the gas meters. The whole market space of the intelligent gas meter can reach 600 billion yuan in the future.
Contain the sealing member among the intelligent gas table, mostly be the rubber material, it plays sealed effect, ensure that the natural gas that passes through from the gas table can not take place to leak, however current rubber seal is ageing easily, and life is short, cause intelligent gas table to break down easily, and rubber seal's low temperature resistance is not good enough, the rubber seal under the low temperature environment is frozen out easily, simultaneously rubber seal's service temperature is comparatively narrow and narrow, high temperature resistance is not good enough, be not suitable for and use under a plurality of temperature environment, therefore some internal sealing members are not suitable for the standard of European gas table, be difficult to export.
Disclosure of Invention
The invention aims to provide a hydrogenated nitrile rubber gas sealing element with good weather resistance, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a hydrogenated nitrile rubber gas sealing element with good weather resistance comprises the following components in parts by weight: 80-120 parts of hydrogenated nitrile rubber, 20-30 parts of PVC resin, 5-8 parts of polytetrafluoroethylene, 7-10 parts of polylactic acid fiber, 4-6 parts of magnesium oxide, 0.3-0.7 part of stearic acid, 3-6 parts of a vulcanizing agent, 1-3 parts of a vulcanization retarder, 0.3-0.4 part of a vulcanization accelerator, 0.2-1 part of an anti-aging agent, 1-3 parts of a rubber plasticizer and 0.5-2 parts of a rubber defoamer.
Preferably, the vulcanizing agent is zinc oxide, and the vulcanization accelerator is any one of ethylene thiourea, diethyl thiourea or zinc dimethyldithiocarbamate.
Preferably, the vulcanization retarder is polyboronate, and the anti-aging agent is an anti-aging agent DNP.
Preferably, the rubber plasticizer is dioctyl azelate, and the rubber defoamer is calcium oxide.
A hydrogenated nitrile rubber gas sealing element with good weather resistance is prepared by the following steps:
s1, weighing 80-120 parts of hydrogenated nitrile rubber, 20-30 parts of PVC resin, 5-8 parts of polytetrafluoroethylene, 7-10 parts of polylactic acid fiber, 4-6 parts of magnesium oxide, 0.3-0.7 part of stearic acid, 0.2-1 part of anti-aging agent and 1-3 parts of vulcanization retarder, crushing the raw materials, adding the crushed raw materials into stirring equipment, stirring for 10-25min, pressurizing, filling protective gas into the stirring equipment, and sintering at high temperature;
s2, adding the product obtained in the step S1 into a first stage of a double-stage double-screw extruder from a feed opening, accurately injecting 1-3 parts of rubber plasticizer and 0.5-2 parts of rubber defoamer into the extruder, premixing raw materials, controlling the rotating speed of the first stage of the double-stage double-screw extruder at 500-700r/min, and setting the temperature at 180-240 ℃;
s3, adding 0.3-0.4 part of vulcanization accelerator and 3-6 parts of vulcanizing agent to a feed opening of the second stage of the extruder, vulcanizing in the extruder at the temperature of 205-260 ℃, producing thermoplastic hydrogenated nitrile rubber after extrusion, and controlling the rotating speed of the second stage of the double-stage double-screw extruder at 600-800r/min;
and S4, extruding the product obtained in the step S3 into a mold for molding, cooling and taking out to obtain the hydrogenated nitrile-butadiene rubber gas sealing element with good weather resistance.
Preferably, in the step S1, the charged protective gas is helium or argon, and the charging rate of the protective gas is 50 to 100mL/min.
Preferably, in the step S1, the temperature of the high-temperature sintering is controlled to be 600-650 ℃, and the duration of the high-temperature sintering is 0.9-3h.
Preferably, in the step S2, 1 to 3 parts of a rubber plasticizer solution and 0.5 to 2 parts of a rubber defoamer solution are injected by using a constant flow pump.
Preferably, in the step S4, a release agent is added to the mold in advance, and the release agent is emulsified methyl silicone oil.
Preferably, in step S4, the finished sealing member is polished by using a polishing device.
Compared with the prior art, the invention has the following beneficial effects:
the sealing element provided by the invention has better weather resistance, has the characteristics of low temperature resistance, aging resistance, high temperature resistance and the like, can be used in a low-temperature environment, is suitable for a high-temperature environment, can be used in a plurality of temperature environments, is suitable for the standard of European gas meters and is beneficial to export, has the characteristic of aging resistance, has longer service life, effectively reduces the failure rate of the gas meters, and solves the problems that the existing sealing elements of the gas meters have poor weather resistance and are difficult to adapt to the high-temperature environment or the low-temperature environment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A hydrogenated nitrile rubber gas sealing element with good weather resistance comprises the following materials in parts by weight: 80-120 parts of hydrogenated nitrile rubber, 20-30 parts of PVC resin, 5-8 parts of polytetrafluoroethylene, 7-10 parts of polylactic acid fiber, 4-6 parts of magnesium oxide, 0.3-0.7 part of stearic acid, 3-6 parts of vulcanizing agent, 1-3 parts of vulcanization retarder, 0.3-0.4 part of vulcanization accelerator, 0.2-1 part of anti-aging agent, 1-3 parts of rubber plasticizer and 0.5-2 parts of rubber defoamer, wherein stearic acid can obviously reduce the viscosity of rubber material in the processing process, improve the technological properties and obviously improve the plasticity of the rubber material, the polylactic acid fiber has good heat resistance so as to improve the overall heat resistance of the sealing element, the polytetrafluoroethylene is white and has the characteristics of excellent heat resistance and cold resistance, and the like, and can be used for a long time at the temperature of-180-260 ℃ to improve the overall weather resistance of the sealing element, the sealing element is characterized in that a vulcanizing agent is zinc oxide, a vulcanization accelerator is any one of ethylene thiourea, diethyl thiourea or zinc dimethyldithiocarbamate, the vulcanizing agent is zinc oxide, the vulcanization accelerator is any one of ethylene thiourea, diethyl thiourea or zinc dimethyldithiocarbamate, a vulcanization retarder is polyboronate, an anti-aging agent is an anti-aging agent DNP, the anti-aging agent DNP is a chain fracture inhibitor and a metal complexing agent, has the characteristics of excellent thermal aging resistance, natural aging resistance and the like, the service life of the sealing element is effectively prolonged, a rubber plasticizer is dioctyl azelate, and the rubber plasticizer enables a powdery compounding agent to be better soaked with raw rubber and uniformly dispersed by reducing intermolecular force, so that the mixing process is improved; the rubber defoaming agent is calcium oxide, and absorbs the moisture brought by the filling agent, vulcanizing agent, accelerator, foaming agent and the like used in the production process of the product, so that the product has no air holes inside, uniform and compact section and smooth and attractive surface.
The first embodiment is as follows:
a hydrogenated nitrile-butadiene rubber gas sealing element with good weather resistance is prepared by the following steps:
s1, weighing 100 parts of hydrogenated nitrile rubber, 20 parts of PVC resin, 5 parts of polytetrafluoroethylene, 7 parts of polylactic acid fiber, 4 parts of magnesium oxide, 0.3 part of stearic acid, 0.5 part of anti-aging agent and 1 part of vulcanization retarder, crushing the raw materials, adding the crushed raw materials into stirring equipment, stirring for 15min, pressurizing, filling helium into the stirring equipment as protective gas at a filling rate of 50mL/min, and sintering at a high temperature;
s2, adding the product obtained in the step S1 into a first stage of a double-stage double-screw extruder from a feed opening, accurately injecting 1 part of rubber plasticizer and 0.5 part of rubber defoamer into the extruder by using a constant flow pump to obtain dioctyl azelate solution and calcium oxide solution, and premixing the raw materials, wherein the rotating speed of the first stage of the double-stage double-screw extruder is controlled at 500r/min, and the temperature is set at 180 ℃;
s3, adding 0.3 part of vulcanization accelerator and 3 parts of vulcanizing agent into a feed opening of the second stage of the extruder, vulcanizing in the extruder at the temperature of 205 ℃, producing thermoplastic hydrogenated nitrile rubber after extruding, and controlling the rotating speed of the second stage of the double-stage double-screw extruder at 600r/min;
and S4, adding an emulsified methyl silicone oil release agent into the mold in advance, extruding the product obtained in the step S3 into the mold for molding, and taking out the molded product after cooling to obtain the hydrogenated nitrile butadiene rubber gas sealing element with good weather resistance.
Example two:
a hydrogenated nitrile rubber gas sealing element with good weather resistance is prepared by the following steps:
s1, weighing 110 parts of hydrogenated nitrile rubber, 25 parts of PVC resin, 6 parts of polytetrafluoroethylene, 8 parts of polylactic acid fiber, 5 parts of magnesium oxide, 0.5 part of stearic acid, 0.7 part of anti-aging agent and 2 parts of vulcanization retarder, crushing the raw materials, adding the crushed raw materials into stirring equipment, stirring for 20min, pressurizing, filling argon into the stirring equipment as protective gas at the filling rate of 70mL/min, and sintering at the high temperature of 600 ℃ for 1.5h;
s2, adding the product obtained in the step S1 into a first stage of a double-stage double-screw extruder from a feed opening, accurately injecting 2 parts of rubber plasticizer and 1.5 parts of rubber defoamer into the extruder by using a constant flow pump, namely, obtaining dioctyl azelate solution and calcium oxide solution, premixing the raw materials, controlling the rotating speed of the first stage of the double-stage double-screw extruder at 600r/min, and setting the temperature at 200 ℃;
s3, adding 0.35 part of vulcanization accelerator and 5 parts of vulcanizing agent into a feed opening of the second stage of the extruder, vulcanizing in the extruder at 235 ℃, producing thermoplastic hydrogenated nitrile rubber after extruding, and controlling the rotating speed of the second stage of the double-stage double-screw extruder at 700r/min;
and S4, adding an emulsified methyl silicone oil release agent into the mold in advance, extruding the product obtained in the step S3 into the mold for molding, and taking out the molded product after cooling to obtain the hydrogenated nitrile butadiene rubber gas sealing element with good weather resistance.
Example three:
a hydrogenated nitrile-butadiene rubber gas sealing element with good weather resistance is prepared by the following steps:
s1, weighing 120 parts of hydrogenated nitrile butadiene rubber, 30 parts of PVC resin, 8 parts of polytetrafluoroethylene, 10 parts of polylactic acid fiber, 6 parts of magnesium oxide, 0.7 part of stearic acid, 1 part of an anti-aging agent and 3 parts of a vulcanization retarder, crushing the raw materials, adding the crushed raw materials into stirring equipment, stirring for 25min, pressurizing, filling argon into the stirring equipment as protective gas at a filling rate of 100mL/min, and sintering at a high temperature of 650 ℃ for 3h;
s2, adding the product obtained in the step S1 into a first stage of a double-stage double-screw extruder from a feed opening, accurately injecting 3 parts of rubber plasticizer and 2 parts of rubber defoamer into the extruder by using a constant flow pump, namely, dioctyl azelate solution and calcium oxide solution, premixing the raw materials, controlling the rotating speed of the first stage of the double-stage double-screw extruder at 700r/min, and setting the temperature at 240 ℃;
s3, adding 0.4 part of vulcanization accelerator and 65 parts of vulcanizing agent to a feed opening of the second stage of the extruder, vulcanizing in the extruder at the temperature of 260 ℃, producing thermoplastic hydrogenated nitrile-butadiene rubber after extrusion, and controlling the rotating speed of the second stage of the double-stage double-screw extruder at 800r/min;
and S4, adding an emulsified methyl silicone oil release agent into the mold in advance, extruding the product obtained in the step S3 into the mold for molding, and taking out the molded product after cooling to obtain the hydrogenated nitrile butadiene rubber gas sealing element with good weather resistance.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a hydrogenated nitrile butadiene rubber gas sealing member that weatherability is good which characterized in that: the composition comprises the following substances in parts by weight: 80-120 parts of hydrogenated nitrile rubber, 20-30 parts of PVC resin, 5-8 parts of polytetrafluoroethylene, 7-10 parts of polylactic acid fiber, 4-6 parts of magnesium oxide, 0.3-0.7 part of stearic acid, 3-6 parts of a vulcanizing agent, 1-3 parts of a vulcanization retarder, 0.3-0.4 part of a vulcanization accelerator, 0.2-1 part of an anti-aging agent, 1-3 parts of a rubber plasticizer and 0.5-2 parts of a rubber defoaming agent.
2. The good weather resistant hydrogenated nitrile rubber gas seal according to claim 1, wherein: the vulcanizing agent is zinc oxide, and the vulcanization accelerator is any one of ethylene thiourea, diethyl thiourea or zinc dimethyldithiocarbamate.
3. The good weather resistant hydrogenated nitrile rubber gas seal according to claim 1, wherein: the vulcanization retarder is polyboronate, and the anti-aging agent is an anti-aging agent DNP.
4. The good weather resistant hydrogenated nitrile rubber gas seal according to claim 1, wherein: the rubber plasticizer is dioctyl azelate, and the rubber defoamer is calcium oxide.
5. The good weather resistant hydrogenated nitrile rubber gas seal according to claim 1, wherein: the preparation method comprises the following steps:
s1, weighing 80-120 parts of hydrogenated nitrile rubber, 20-30 parts of PVC resin, 5-8 parts of polytetrafluoroethylene, 7-10 parts of polylactic acid fiber, 4-6 parts of magnesium oxide, 0.3-0.7 part of stearic acid, 0.2-1 part of an anti-aging agent and 1-3 parts of a vulcanization retarder, crushing the raw materials, adding the crushed raw materials into stirring equipment, stirring for 10-25min, pressurizing, filling protective gas into the stirring equipment, and sintering at high temperature;
s2, adding the product obtained in the step S1 into a first stage of a double-stage double-screw extruder from a feed opening, accurately injecting 1-3 parts of rubber plasticizer and 0.5-2 parts of rubber defoaming agent into the extruder, premixing raw materials, controlling the rotating speed of the first stage of the double-stage double-screw extruder at 500-700r/min, and setting the temperature at 180-240 ℃;
s3, adding 0.3-0.4 part of vulcanization accelerator and 3-6 parts of vulcanizing agent into a feed opening of the second stage of the extruder, vulcanizing in the extruder at the temperature of 205-260 ℃, producing thermoplastic hydrogenated nitrile rubber after extruding, and controlling the rotating speed of the second stage of the double-stage double-screw extruder at 600-800r/min;
and S4, extruding the product obtained in the step S3 into a mold for molding, and taking out after cooling to obtain the hydrogenated nitrile-butadiene rubber gas sealing element with good weather resistance.
6. The good weather resistant hydrogenated nitrile rubber gas seal according to claim 5, wherein: in the step S1, the charged protective gas is helium or argon, and the charging rate of the protective gas is 50-100mL/min.
7. The good weather resistant hydrogenated nitrile rubber gas seal according to claim 5, wherein: in the step S1, the temperature of high-temperature sintering is controlled to be 600-650 ℃, and the duration of the high-temperature sintering is 0.9-3h.
8. The good weather resistant hydrogenated nitrile rubber gas seal according to claim 5, wherein: and in the step S2, 1-3 parts of rubber plasticizer solution and 0.5-2 parts of rubber defoaming agent solution are injected by using a constant flow pump.
9. The good weather resistant hydrogenated nitrile rubber gas seal according to claim 5, wherein: in the step S4, a release agent is added to the mold in advance, and the release agent is emulsified methyl silicone oil.
10. The good weather resistant hydrogenated nitrile rubber gas seal according to claim 5, wherein: and in the step S4, polishing the finished sealing element by using polishing equipment.
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| CN202210981435.3A CN115260620A (en) | 2022-08-15 | 2022-08-15 | Hydrogenated nitrile rubber gas sealing element with good weather resistance |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040756A (en) * | 2009-10-21 | 2011-05-04 | 中国石油化工股份有限公司 | Rubber seal membrane for petrochemical gas storage holder and preparation method thereof |
| CN105017593A (en) * | 2015-06-30 | 2015-11-04 | 临海市四通制管有限公司 | Hydrogenated butadiene-acrylonitrile rubber material used for compressed natural gas transportation, and preparation method thereof |
| CN107337825A (en) * | 2017-07-31 | 2017-11-10 | 常州杰轩纺织科技有限公司 | A kind of preparation method of yielding rubber |
| CN108276628A (en) * | 2018-01-09 | 2018-07-13 | 安徽美祥实业有限公司 | Gas holder rubber sealing film sizing composition and preparation method thereof |
| CN108359152A (en) * | 2018-02-11 | 2018-08-03 | 南京金三力高分子科技有限公司 | A kind of cooling system high temperature resistant hydrogenated nitrile-butadiene rubber material and preparation method thereof |
| CN108912429A (en) * | 2018-08-16 | 2018-11-30 | 南通通江橡胶制品有限公司 | A kind of ozone proof and corrosion resistant type rubber material and its preparation process |
| CN114015133A (en) * | 2021-11-15 | 2022-02-08 | 启东市亿方密封科技有限公司 | Ultrahigh-performance environment-friendly hydrogenated nitrile-butadiene rubber and preparation method thereof |
-
2022
- 2022-08-15 CN CN202210981435.3A patent/CN115260620A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040756A (en) * | 2009-10-21 | 2011-05-04 | 中国石油化工股份有限公司 | Rubber seal membrane for petrochemical gas storage holder and preparation method thereof |
| CN105017593A (en) * | 2015-06-30 | 2015-11-04 | 临海市四通制管有限公司 | Hydrogenated butadiene-acrylonitrile rubber material used for compressed natural gas transportation, and preparation method thereof |
| CN107337825A (en) * | 2017-07-31 | 2017-11-10 | 常州杰轩纺织科技有限公司 | A kind of preparation method of yielding rubber |
| CN108276628A (en) * | 2018-01-09 | 2018-07-13 | 安徽美祥实业有限公司 | Gas holder rubber sealing film sizing composition and preparation method thereof |
| CN108359152A (en) * | 2018-02-11 | 2018-08-03 | 南京金三力高分子科技有限公司 | A kind of cooling system high temperature resistant hydrogenated nitrile-butadiene rubber material and preparation method thereof |
| CN108912429A (en) * | 2018-08-16 | 2018-11-30 | 南通通江橡胶制品有限公司 | A kind of ozone proof and corrosion resistant type rubber material and its preparation process |
| CN114015133A (en) * | 2021-11-15 | 2022-02-08 | 启东市亿方密封科技有限公司 | Ultrahigh-performance environment-friendly hydrogenated nitrile-butadiene rubber and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 章菊华等: "氢化丁腈橡胶的结构与性能研究", 《材料工程》 * |
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