CN109206757A - A kind of EPT rubber packing circle - Google Patents
A kind of EPT rubber packing circle Download PDFInfo
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- CN109206757A CN109206757A CN201811266515.0A CN201811266515A CN109206757A CN 109206757 A CN109206757 A CN 109206757A CN 201811266515 A CN201811266515 A CN 201811266515A CN 109206757 A CN109206757 A CN 109206757A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- 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
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
- C08K2003/3081—Aluminum sulfate
-
- 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
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of EPT rubber packing circles, including ethylene propylene diene rubber 110-120 parts by weight, polystyrene resin 1-5 parts by weight, ceramic powders 12-18 parts by weight, nanometer silicon carbide 7-11 parts by weight, aluminum sulfate 6-8 parts by weight, compatilizer 7-11 parts by weight, plasticizer 6-10 parts by weight, nanmeter antimong trioxide 3-5 parts by weight, white glue with vinyl 4-8 parts by weight, flake asbestos 1-3 parts by weight, white carbon black 1-6 parts by weight, anti-aging agent 2-6 parts by weight, nano magnesia 1-5 parts by weight.Each component configuration of the present invention is reasonable, make full use of the performances such as the corrosion-resistant, ageing-resistant, water-fast of ethylene propylene diene rubber, high resiliency, resistance to superheated water as the major ingredient of production sealing ring, a certain amount of auxiliary material is added simultaneously to increase shock resistance, the abrasion resistance properties of ethylene propylene diene rubber, in particular with the addition of compatilizer, plasticizer, ceramic powders, increase the rigidity of sealing ring, impact and abrasion resistance properties can be resisted, a wide range of promote is suitable for.
Description
Technical field
The present invention relates to sealing ring technical field, in particular to a kind of EPT rubber packing circle.
Background technique
The circular cowling that rubber seal is made of one or several parts is fixed on the lasso or washer of bearing
And with another lasso or washer contacts or form narrow labyrinth clearance, prevent lubricating oil from leaking out and foreign object intrusion.
Rubber seal is gentle in defined temperature, pressure and different liquid for being mounted on various mechanical equipments
In body, seal under static or motion state.
Ethylene propylene diene rubber is the copolymer of ethylene, propylene and a small amount of non-conjugated diene hydrocarbon, is one kind of EP rubbers,
With EPDM(Ethylene Propylene Diene Monomer) it indicates, because its main chain is by chemically stable saturated hydrocarbons group
At only containing unsaturated double-bond in the side chain, therefore the ageing-resistant performances such as its resistance to ozone, heat-resisting, weather-proof are excellent, can be widely used for vapour
The fields such as vehicle component, building water-proof material, electric wire and cable jacket, heat-resistant rubber hose, adhesive tape, automotive sealant.
It is an object of the present invention to provide a kind of EPT rubber packing circles, can not only be distinctive using ethylene propylene diene rubber
Advantageous properties, and increase ethylene propylene diene rubber deficiency existing for production sealing ring and improve.
Summary of the invention
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a kind of EPT rubber packing circles.
In order to solve the above technical problems, the present invention provides a kind of EPT rubber packing circle comprising following parts by weight
Composition:
Ethylene propylene diene rubber 110-120 parts by weight, polystyrene resin 1-5 parts by weight, ceramic powders 12-18 parts by weight, nanometer
Silicon carbide 7-11 parts by weight, aluminum sulfate 6-8 parts by weight, compatilizer 7-11 parts by weight, plasticizer 6-10 parts by weight, nanometer three aoxidize
Two antimony 3-5 parts by weight, white glue with vinyl 4-8 parts by weight, flake asbestos 1-3 parts by weight, white carbon black 1-6 parts by weight, anti-aging agent 2-6 weight
Part, nano magnesia 1-5 parts by weight；
The compatilizer the preparation method comprises the following steps: by sodium dihydrogen phosphate 15-25 parts by weight, acrylamide 15-25 parts by weight, rosemary
Sour methyl esters 35-45 parts by weight, silicon mosanom 8-12 parts by weight are sufficiently stirred in 65-75 DEG C and are completely dispersed, and add pentadecane
Base sulfonic acid chloride 42-52 parts by weight, are warming up to 75-85 DEG C of stirring 30-40min, be added trishydroxymethylaminomethane 6-10 parts by weight,
Dibenzothiazyl disulfide 4-6 parts by weight, maleic anhydride 5-7 parts by weight, Sodium Dimercapto Sulfonate 4-6 parts by weight, are cooled to
40-50 DEG C is stirred to react 1-2h, and spray drying obtains the compatilizer；
The plasticizer the preparation method comprises the following steps: by 1,8- diamino -3,6- dioxaoctane 150-250 parts by weight, pyrrolidines
Keto carboxylic acid sodium 1-5 parts by weight are added to isopropanol 70-80 parts by weight and deionized water 40-50 parts by weight, stir evenly at 0-5 DEG C
Sulfonic chloride 1-3 parts by weight are added dropwise afterwards, time for adding 25-35min is warming up to normal-temperature reaction 2-4h, then, by subtracting
Isopropanol is got rid of in pressure distillation, is extracted product from aqueous solution with ethyl acetate, and magnesium sulfate is added and dries, filters
Magnesium sulfate removes ethyl acetate by vacuum distillation, and drying obtains plasticizer.
Further, the present invention it include the composition of following parts by weight:
110 parts by weight of ethylene propylene diene rubber, 1 parts by weight of polystyrene resin, 12 parts by weight of ceramic powders, 7 weight of nanometer silicon carbide
Measure part, 6 parts by weight of aluminum sulfate, 7 parts by weight of compatilizer, 6 parts by weight of plasticizer, 3 parts by weight of nanmeter antimong trioxide, white glue with vinyl 4
Parts by weight, 1 parts by weight of flake asbestos, 1 parts by weight of white carbon black, 2 parts by weight of anti-aging agent, 1 parts by weight of nano magnesia.
Further, the present invention it include the composition of following parts by weight:
115 parts by weight of ethylene propylene diene rubber, 3 parts by weight of polystyrene resin, 15 parts by weight of ceramic powders, 9 weight of nanometer silicon carbide
Measure part, 7 parts by weight of aluminum sulfate, 9 parts by weight of compatilizer, 8 parts by weight of plasticizer, 4 parts by weight of nanmeter antimong trioxide, white glue with vinyl 6
Parts by weight, 2 parts by weight of flake asbestos, 4 parts by weight of white carbon black, 4 parts by weight of anti-aging agent, 3 parts by weight of nano magnesia.
Further, the present invention it include the composition of following parts by weight:
120 parts by weight of ethylene propylene diene rubber, 5 parts by weight of polystyrene resin, 18 parts by weight of ceramic powders, 11 weight of nanometer silicon carbide
Measure part, 8 parts by weight of aluminum sulfate, 11 parts by weight of compatilizer, 10 parts by weight of plasticizer, 5 parts by weight of nanmeter antimong trioxide, white glue with vinyl
8 parts by weight, 3 parts by weight of flake asbestos, 6 parts by weight of white carbon black, 6 parts by weight of anti-aging agent, 5 parts by weight of nano magnesia.
Further, compatilizer of the present invention the preparation method comprises the following steps: by 20 parts by weight of sodium dihydrogen phosphate, acrylamide 20
Parts by weight, 40 parts by weight of methyl rosmarinate, 10 parts by weight of silicon mosanom are sufficiently stirred in 70 DEG C and are completely dispersed, and add ten
Five alkyl sulfonyl chlorides, 47 parts by weight are warming up to 80 DEG C of stirring 35min, and 8 parts by weight of trishydroxymethylaminomethane, curing two are added
5 parts by weight of benzothiazole, 6 parts by weight of maleic anhydride, 5 parts by weight of Sodium Dimercapto Sulfonate, are cooled to 45 DEG C and are stirred to react
1.5h, spray drying, obtains the compatilizer；
Further, plasticizer of the present invention the preparation method comprises the following steps: by 1,200 weight of 8- diamino -3,6- dioxaoctane
Amount part, 3 parts by weight of pyrrolidone sodium carboxylate are added to 45 parts by weight of 75 parts by weight of isopropanol and deionized water, stir at 0-5 DEG C
2 parts by weight of sulfonic chloride are added dropwise after uniformly, time for adding 30min is warming up to normal-temperature reaction 3h, then, passes through decompression
Isopropanol is got rid of in distillation, is extracted product from aqueous solution with ethyl acetate, and magnesium sulfate is added and dries, filters sulphur
Sour magnesium removes ethyl acetate by vacuum distillation, and drying obtains plasticizer.
Beneficial effects of the present invention: each component configuration of the present invention rationally, makes full use of the corrosion-resistant, resistance to of ethylene propylene diene rubber
Major ingredient of the performances such as aging, water-fast, high resiliency, resistance to superheated water as production sealing ring, while a certain amount of auxiliary material is added to increase
Shock resistance, the abrasion resistance properties for adding ethylene propylene diene rubber increase in particular with the addition of compatilizer, plasticizer, ceramic powders
The rigidity of sealing ring, can resist impact and abrasion resistance properties, be suitable for a wide range of promote.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below with reference to embodiment, whereby to the present invention how application technology hand
Section solves technical problem, and the realization process for reaching technical effect can fully understand and implement.
It should be noted that writing length to save specification, unnecessary repetition and waste are avoided, in the feelings not conflicted
Under condition, the features in the embodiments and the embodiments of the present application be can be combined with each other.
The preparation method of compatilizer in a kind of EPT rubber packing circle of embodiment 1
The preparation method of compatilizer, includes the following steps 20 weight of sodium dihydrogen phosphate in a kind of EPT rubber packing circle
Part, 20 parts by weight of acrylamide, 40 parts by weight of methyl rosmarinate, 10 parts by weight of silicon mosanom are sufficiently stirred complete in 70 DEG C
Dispersion, adds 47 parts by weight of sulfonic chloride, is warming up to 80 DEG C of stirring 35min, and 8 weight of trishydroxymethylaminomethane is added
Part, 5 parts by weight of dibenzothiazyl disulfide, 6 parts by weight of maleic anhydride, 5 parts by weight of Sodium Dimercapto Sulfonate are measured, is cooled to 45
DEG C it is stirred to react 1.5h, is spray-dried, obtains compatilizer in a kind of EPT rubber packing circle.
The preparation method of plasticizer in a kind of EPT rubber packing circle of embodiment 2
The preparation method of plasticizer in a kind of EPT rubber packing circle, comprising the following steps:
1,8- diamino -3,6- dioxaoctane, 200 parts by weight, 3 parts by weight of pyrrolidone sodium carboxylate are added to isopropanol
2 parts by weight of sulfonic chloride are added dropwise at 0-5 DEG C, when dropwise addition in 45 parts by weight of 75 parts by weight and deionized water after mixing evenly
Between 30min, be warming up to normal-temperature reaction 3h, then, got rid of isopropanol by being evaporated under reduced pressure, with ethyl acetate by product from water
It is extracted in solution, and magnesium sulfate is added and dries, filters magnesium sulfate, ethyl acetate is removed by vacuum distillation, drying obtains
Plasticizer.
A kind of EPT rubber packing circle of embodiment 3
A kind of EPT rubber packing circle comprising the composition of following parts by weight:
110 parts by weight of ethylene propylene diene rubber, 1 parts by weight of polystyrene resin, 12 parts by weight of ceramic powders, 7 weight of nanometer silicon carbide
Measure part, 6 parts by weight of aluminum sulfate, 7 parts by weight of compatilizer, 6 parts by weight of plasticizer, 3 parts by weight of nanmeter antimong trioxide, white glue with vinyl 4
Parts by weight, 1 parts by weight of flake asbestos, 1 parts by weight of white carbon black, 2 parts by weight of anti-aging agent, 1 parts by weight of nano magnesia.
Compatilizer, plasticizer made from embodiment 1, embodiment 2 is respectively adopted in compatilizer, plasticizer in the present embodiment 3.
A kind of EPT rubber packing circle of embodiment 4
A kind of EPT rubber packing circle comprising the composition of following parts by weight:
115 parts by weight of ethylene propylene diene rubber, 3 parts by weight of polystyrene resin, 15 parts by weight of ceramic powders, 9 weight of nanometer silicon carbide
Measure part, 7 parts by weight of aluminum sulfate, 9 parts by weight of compatilizer, 8 parts by weight of plasticizer, 4 parts by weight of nanmeter antimong trioxide, white glue with vinyl 6
Parts by weight, 2 parts by weight of flake asbestos, 4 parts by weight of white carbon black, 4 parts by weight of anti-aging agent, 3 parts by weight of nano magnesia.
Compatilizer, plasticizer made from embodiment 1, embodiment 2 is respectively adopted in compatilizer, plasticizer in the present embodiment 4.
A kind of EPT rubber packing circle of embodiment 5
A kind of EPT rubber packing circle comprising the composition of following parts by weight:
120 parts by weight of ethylene propylene diene rubber, 5 parts by weight of polystyrene resin, 18 parts by weight of ceramic powders, 11 weight of nanometer silicon carbide
Measure part, 8 parts by weight of aluminum sulfate, 11 parts by weight of compatilizer, 10 parts by weight of plasticizer, 5 parts by weight of nanmeter antimong trioxide, white glue with vinyl
8 parts by weight, 3 parts by weight of flake asbestos, 6 parts by weight of white carbon black, 6 parts by weight of anti-aging agent, 5 parts by weight of nano magnesia.
Compatilizer, plasticizer made from embodiment 1, embodiment 2 is respectively adopted in compatilizer, plasticizer in the present embodiment 5.
All above-mentioned this intellectual properties of primarily implementation, there is no this new products of implementation of setting limitation other forms
And/or new method.Those skilled in the art will utilize this important information, above content modification, to realize similar execution feelings
Condition.But all modifications or transformation belong to the right of reservation based on new product of the present invention.
Claims (6)
1. a kind of EPT rubber packing circle, it is characterised in that: it includes the composition of following parts by weight:
Ethylene propylene diene rubber 110-120 parts by weight, polystyrene resin 1-5 parts by weight, ceramic powders 12-18 parts by weight, nanometer
Silicon carbide 7-11 parts by weight, aluminum sulfate 6-8 parts by weight, compatilizer 7-11 parts by weight, plasticizer 6-10 parts by weight, nanometer three aoxidize
Two antimony 3-5 parts by weight, white glue with vinyl 4-8 parts by weight, flake asbestos 1-3 parts by weight, white carbon black 1-6 parts by weight, anti-aging agent 2-6 weight
Part, nano magnesia 1-5 parts by weight；
The compatilizer the preparation method comprises the following steps: by sodium dihydrogen phosphate 15-25 parts by weight, acrylamide 15-25 parts by weight, rosemary
Sour methyl esters 35-45 parts by weight, silicon mosanom 8-12 parts by weight are sufficiently stirred in 65-75 DEG C and are completely dispersed, and add pentadecane
Base sulfonic acid chloride 42-52 parts by weight, are warming up to 75-85 DEG C of stirring 30-40min, be added trishydroxymethylaminomethane 6-10 parts by weight,
Dibenzothiazyl disulfide 4-6 parts by weight, maleic anhydride 5-7 parts by weight, Sodium Dimercapto Sulfonate 4-6 parts by weight, are cooled to
40-50 DEG C is stirred to react 1-2h, and spray drying obtains the compatilizer；
The plasticizer the preparation method comprises the following steps: by 1,8- diamino -3,6- dioxaoctane 150-250 parts by weight, pyrrolidines
Keto carboxylic acid sodium 1-5 parts by weight are added to isopropanol 70-80 parts by weight and deionized water 40-50 parts by weight, stir evenly at 0-5 DEG C
Sulfonic chloride 1-3 parts by weight are added dropwise afterwards, time for adding 25-35min is warming up to normal-temperature reaction 2-4h, then, by subtracting
Isopropanol is got rid of in pressure distillation, is extracted product from aqueous solution with ethyl acetate, and magnesium sulfate is added and dries, filters
Magnesium sulfate removes ethyl acetate by vacuum distillation, and drying obtains plasticizer.
2. a kind of EPT rubber packing circle according to claim 1, it is characterised in that: it includes following parts by weight
Composition:
110 parts by weight of ethylene propylene diene rubber, 1 parts by weight of polystyrene resin, 12 parts by weight of ceramic powders, 7 weight of nanometer silicon carbide
Measure part, 6 parts by weight of aluminum sulfate, 7 parts by weight of compatilizer, 6 parts by weight of plasticizer, 3 parts by weight of nanmeter antimong trioxide, white glue with vinyl 4
Parts by weight, 1 parts by weight of flake asbestos, 1 parts by weight of white carbon black, 2 parts by weight of anti-aging agent, 1 parts by weight of nano magnesia.
3. a kind of EPT rubber packing circle according to claim 1, it is characterised in that: it includes following parts by weight
Composition:
115 parts by weight of ethylene propylene diene rubber, 3 parts by weight of polystyrene resin, 15 parts by weight of ceramic powders, 9 weight of nanometer silicon carbide
Measure part, 7 parts by weight of aluminum sulfate, 9 parts by weight of compatilizer, 8 parts by weight of plasticizer, 4 parts by weight of nanmeter antimong trioxide, white glue with vinyl 6
Parts by weight, 2 parts by weight of flake asbestos, 4 parts by weight of white carbon black, 4 parts by weight of anti-aging agent, 3 parts by weight of nano magnesia.
4. a kind of EPT rubber packing circle according to claim 1, it is characterised in that: it includes following parts by weight
Composition:
120 parts by weight of ethylene propylene diene rubber, 5 parts by weight of polystyrene resin, 18 parts by weight of ceramic powders, 11 weight of nanometer silicon carbide
Measure part, 8 parts by weight of aluminum sulfate, 11 parts by weight of compatilizer, 10 parts by weight of plasticizer, 5 parts by weight of nanmeter antimong trioxide, white glue with vinyl
8 parts by weight, 3 parts by weight of flake asbestos, 6 parts by weight of white carbon black, 6 parts by weight of anti-aging agent, 5 parts by weight of nano magnesia.
5. a kind of EPT rubber packing circle according to claim 1, it is characterised in that: the preparation side of the compatilizer
Method are as follows: by 20 parts by weight of sodium dihydrogen phosphate, 20 parts by weight of acrylamide, 40 parts by weight of methyl rosmarinate, 10 weight of silicon mosanom
Amount part is sufficiently stirred in 70 DEG C to be completely dispersed, and is added 47 parts by weight of sulfonic chloride, is warming up to 80 DEG C of stirrings
8 parts by weight of trishydroxymethylaminomethane, 5 parts by weight of dibenzothiazyl disulfide, 6 parts by weight of maleic anhydride, two are added in 35min
5 parts by weight of mercaptopropanesulfonic acid sodium are cooled to 45 DEG C and are stirred to react 1.5h, and spray drying obtains the compatilizer；
6. a kind of EPT rubber packing circle according to claim 1, it is characterised in that: the preparation side of the plasticizer
Method are as follows: 1,8- diamino -3,6- dioxaoctane, 200 parts by weight, 3 parts by weight of pyrrolidone sodium carboxylate are added to isopropanol
2 parts by weight of sulfonic chloride are added dropwise at 0-5 DEG C, when dropwise addition in 45 parts by weight of 75 parts by weight and deionized water after mixing evenly
Between 30min, be warming up to normal-temperature reaction 3h, then, got rid of isopropanol by being evaporated under reduced pressure, with ethyl acetate by product from water
It is extracted in solution, and magnesium sulfate is added and dries, filters magnesium sulfate, ethyl acetate is removed by vacuum distillation, drying obtains
Plasticizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266515.0A CN109206757A (en) | 2018-10-31 | 2018-10-31 | A kind of EPT rubber packing circle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811266515.0A CN109206757A (en) | 2018-10-31 | 2018-10-31 | A kind of EPT rubber packing circle |
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| CN109206757A true CN109206757A (en) | 2019-01-15 |
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| CN201811266515.0A Pending CN109206757A (en) | 2018-10-31 | 2018-10-31 | A kind of EPT rubber packing circle |
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| CN103524891A (en) * | 2013-09-18 | 2014-01-22 | 铜陵新创流体科技有限公司 | Oil inlet seal ring for automotive brake master cylinder |
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| CN106187253A (en) * | 2016-07-07 | 2016-12-07 | 安徽省德邦瓷业有限公司 | There is the preparation method of impact resistance ceramic product raw material |
| CN106519459A (en) * | 2016-10-09 | 2017-03-22 | 岳承华 | High-temperature-resistant anti-aging rubber material used for hot-water valve seal ring and preparation method thereof |
| CN107513227A (en) * | 2017-09-30 | 2017-12-26 | 咸阳橡胶工业制品研究所有限公司 | A kind of rubber packing material of resistance to blue oil and preparation method |
| CN107903513A (en) * | 2017-12-08 | 2018-04-13 | 徐州德高电动车科技有限公司 | A kind of bearing sealed ring |
| CN108530763A (en) * | 2018-01-17 | 2018-09-14 | 宁国市顺鑫金属制品有限公司 | A kind of forging press sealing ring and its production technology |
| CN108586950A (en) * | 2018-04-28 | 2018-09-28 | 李侠 | A kind of heat-resisting ternary ethlene propyene rubbercompound material of high abrasion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524891A (en) * | 2013-09-18 | 2014-01-22 | 铜陵新创流体科技有限公司 | Oil inlet seal ring for automotive brake master cylinder |
| CN103804802A (en) * | 2014-02-28 | 2014-05-21 | 长城汽车股份有限公司 | Automobile sealing strip and manufacturing method thereof |
| CN104893124A (en) * | 2015-06-24 | 2015-09-09 | 周彩球 | O-shaped sealing ring |
| CN106145987A (en) * | 2016-07-07 | 2016-11-23 | 安徽省德邦瓷业有限公司 | A kind of high strength ceramic material |
| CN106187260A (en) * | 2016-07-07 | 2016-12-07 | 安徽省德邦瓷业有限公司 | A kind of antivibration wear resistant ceramic material |
| CN106187253A (en) * | 2016-07-07 | 2016-12-07 | 安徽省德邦瓷业有限公司 | There is the preparation method of impact resistance ceramic product raw material |
| CN106519459A (en) * | 2016-10-09 | 2017-03-22 | 岳承华 | High-temperature-resistant anti-aging rubber material used for hot-water valve seal ring and preparation method thereof |
| CN107513227A (en) * | 2017-09-30 | 2017-12-26 | 咸阳橡胶工业制品研究所有限公司 | A kind of rubber packing material of resistance to blue oil and preparation method |
| CN107903513A (en) * | 2017-12-08 | 2018-04-13 | 徐州德高电动车科技有限公司 | A kind of bearing sealed ring |
| CN108530763A (en) * | 2018-01-17 | 2018-09-14 | 宁国市顺鑫金属制品有限公司 | A kind of forging press sealing ring and its production technology |
| CN108586950A (en) * | 2018-04-28 | 2018-09-28 | 李侠 | A kind of heat-resisting ternary ethlene propyene rubbercompound material of high abrasion |
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