CN108410106A - A kind of ageing-resistant seal gasket and preparation method thereof - Google Patents
A kind of ageing-resistant seal gasket and preparation method thereof Download PDFInfo
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- CN108410106A CN108410106A CN201810102500.4A CN201810102500A CN108410106A CN 108410106 A CN108410106 A CN 108410106A CN 201810102500 A CN201810102500 A CN 201810102500A CN 108410106 A CN108410106 A CN 108410106A
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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
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
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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
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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)
- Sealing Material Composition (AREA)
Abstract
The present invention provides a kind of ageing-resistant seal gaskets, including acrylic rubber, nitrile rubber, carbon black N550, carbon black N110, calcium silicates, butyl oleate, high activity, ZnO, HAV 2, preventing aging system, DCP/TCY vulcanizing systems.The preparation method of the ageing-resistant seal gasket：（1）Nitrile rubber modeling is practiced；（2）Nitrile rubber after modeling is practiced is put into open mill with remaining component to be kneaded；（3）Sizing material after mixing puts into open mill back mixing；（4）Back mixing glue after cooling is extruded into adhesive tape, then enters mold forming, rubber cushion after molding is vulcanized on vulcanizing press, obtains seal gasket.The ageing-resistant seal gasket has the advantages that at low cost, service life is long, tolerable temperature is high, wherein ranging from 250 ~ 350 DEG C of the long-term tolerable temperature of seal gasket；The ageing-resistant seal gasket is in preparation process, and the raw rubber that uses is at low cost, preparation process is simple, component formula is reasonable.
Description
Technical field
The present invention relates to seal gasket technical field, specially a kind of ageing-resistant seal gasket and preparation method thereof.
Background technology
Seal gasket is sealing element important in mechanical equipment, is directly related to the quality of mechanical equipment, is set in machinery
During standby use, the friction of each apparatus element makes the temperature between element increase, the friction in engine nacelle makes cabin
Interior temperature increases, and the change of these temperature will have a direct impact on the sealing effect of seal gasket, or even the condition high in temperature
Down or under conditions of being long placed in, aging can occur for seal gasket, and the sealing between apparatus element is caused to relax, or even can be serious
The normal operation of mechanical equipment is influenced, therefore it provides a kind of seal gasket ageing-resistant at high temperature is particularly important.
Invention content
In consideration of it, the present invention provides a kind of ageing-resistant seal gasket and preparation method thereof, the ageing-resistant seal gasket tool
Have the advantages that at low cost, service life is long, tolerable temperature is high, wherein the long-term tolerable temperature ranging from 250 of seal gasket~
350℃；The ageing-resistant seal gasket is in preparation process, and the raw rubber that uses is at low cost, preparation process is simple, component formula closes
Reason.
On the basis of existing technology, the present invention provides a kind of ageing-resistant seal gasket, including following portions by weight
Component：60~80 parts of acrylic rubber, 20~40 parts of nitrile rubber, 12~15 parts of carbon black N550, carbon black N110 20~30
Part, 5~10 parts of calcium silicates, 8~12 parts of butyl oleate, 1~3 part of high activity MgO, 6~8 parts of ZnO, HAV-2 2.5~3.5
Part, 2.5~3.5 parts of preventing aging system, 3~7 parts of DCP/TCY vulcanizing systems..
Preferably, above-mentioned ageing-resistant seal gasket includes the component of following portions by weight：Acrylic rubber 70, butyronitrile rubber
Glue 30,13 parts of carbon black N550,25 parts of carbon black N110,8 parts of calcium silicates, 10 parts of butyl oleate, 2 parts of high activity MgO, ZnO 7
Part, 3 parts of HAV-2,3 parts of preventing aging system, 5 parts of DCP/TCY vulcanizing systems.
Include 0.3~0.7 part of antioxidant NBC, anti-aging agent RD per portion preventing aging system in above-mentioned ageing-resistant seal gasket
1.0~2.0 parts, 1.0~2.0 parts of anti-aging agent Bisphenol F.
Preferably, include 0.5 part of antioxidant NBC, 1.5 parts of anti-aging agent RD, anti-aging agent Bisphenol F per a preventing aging system
1.5 part..
The preparation method of above-mentioned ageing-resistant seal gasket, steps are as follows：
(1) by nitrile rubber stripping and slicing, input mixer modeling is practiced, and moulds that practice temperature be 130~150 DEG C, after modeling is practiced, park 24~
32h, it is cooling, it is spare；Preferably, the storage period that glue is practiced in nitrile rubber modeling is 28h；
(2) in the nitrile rubber input open mill after practicing acrylic rubber and step (1) modeling, the roller through 4~5min
After pressing, turning refining, packet roller glue-line is obtained；Carbon black N550, carbon black N110, calcium silicates, butyl oleate, high activity are sequentially added thereto
MgO, ZnO, HAV-2, antioxidant NBC, anti-aging agent RD and anti-aging agent Bisphenol F, continue to be kneaded, and obtain rubber compound, rubber compound
After turning over the cooling of glue bottom sheet on a mill, 24~32h is parked, it is spare；Preferably, rubber compound turns over the storage period after glue bottom sheet and is
28h；
(3) rubber compound after cooling is put into open mill, DCP/TCY vulcanizing systems is added thereto, rubber compound is returned
Refining obtains back mixing glue, then turns over the cooling of glue bottom sheet, spare after parking 12~24 hours；Preferably, after back mixing glue turns over glue bottom sheet
Storage period be 18h；
(4) back mixing glue after cooling is put into extruder and is extruded into adhesive tape, the adhesive tape of extrusion is then entered into mold forming, it will be at
Rubber cushion after type vulcanizes on vulcanizing press, obtains seal gasket.
DCP/TCY vulcanizing systems are：1.5 parts of DCP, 1 part of TCY, 0.5 part of sulphur, 0.5 part of altax.
Compared with prior art, beneficial effects of the present invention：
1, using acrylic rubber and nitrile rubber the ageing-resistant seal gasket prepared as raw material have save at
This advantages of and the preparation method provided through the invention have the advantages that the seal gasket tolerable temperature obtained is high wherein, close
Ranging from 250~350 DEG C of the tolerable temperature of potting pad.
2, acrylic rubber and fourth can be effectively improved as filler using carbon black N550, carbon black N110 and calcium silicates
The processing performance and hardness of nitrile rubber keep mixing process controllable and can be smoothed out.
3, it using butyl oleate, high activity MgO, ZnO and HAV-2 as accelerating agent, can effectively improve in preparation process
Aging agent, vulcanizing agent and filler it is fully dispersed, keep the sizing material greater homogeneity of preparation, ageing-resistant intensity high.
4, the use of antioxidant NBC, anti-aging agent RD and anti-aging agent Bisphenol F can effectively prevent gasket in placement process
In be hardened, become fragile, and can make seal gasket that there is larger elongation at break and heat aging property；In addition, anti-aging agent is matched
It closes and uses, the toxicity in seal gasket preparation process can be reduced, keep preparation process safer.
Specific implementation mode
The present invention is described in detail With reference to embodiment, and the advantages and features of the present invention will be with retouching
It states and apparent.But examples are merely exemplary, and it is not intended to limit the scope of the present invention in any way.People in the art
Member is it should be understood that without departing from the spirit and scope of the invention, can repair technical scheme of the present invention details
Change or replace, but these modifications and replacement each fall within protection scope of the present invention.
Embodiment 1：
A kind of ageing-resistant seal gasket includes the component of following portions by weight：Acrylic rubber 70, nitrile rubber 30, charcoal
13 parts of black N550,25 parts of carbon black N110,8 parts of calcium silicates, 10 parts of butyl oleate, 2 parts of high activity MgO, 7 parts of ZnO, HAV-2
3 parts, 3 parts of preventing aging system, 5 parts of DCP/TCY vulcanizing systems.
Wherein, include 0.5 part of antioxidant NBC, 1.5 parts of anti-aging agent RD, anti-aging agent Bisphenol F 1.5 per a preventing aging system
Part.
The preparation method of above-mentioned ageing-resistant seal gasket, steps are as follows：
(1) by nitrile rubber stripping and slicing, input mixer modeling is practiced, and it is 140 DEG C to mould white silk temperature, after modeling is practiced, parks 28h, cooling,
It is spare；
(2) in the nitrile rubber input open mill after practicing acrylic rubber and step (1) modeling, the roller through 4~5min
After pressing, turning refining, packet roller glue-line is obtained；Carbon black N550, carbon black N110, calcium silicates, butyl oleate, high activity are sequentially added thereto
MgO, ZnO, HAV-2, antioxidant NBC, anti-aging agent RD and anti-aging agent Bisphenol F, continue to be kneaded, and obtain rubber compound, rubber compound
After turning over the cooling of glue bottom sheet on a mill, 28h is parked, it is spare；
(3) rubber compound after cooling is put into open mill, DCP/TCY vulcanizing systems is added thereto, rubber compound is returned
Refining obtains back mixing glue, then turns over the cooling of glue bottom sheet, spare after parking 18 hours；
(4) back mixing glue after cooling is put into extruder and is extruded into adhesive tape, the adhesive tape of extrusion is then entered into mold forming, it will be at
Rubber cushion after type vulcanizes on vulcanizing press, obtains seal gasket.Comparative example 1：
A kind of seal gasket includes the component of following portions by weight：Acrylic rubber 70, nitrile rubber 30, carbon black N550
13 parts, it is 25 parts of carbon black N110,8 parts of calcium silicates, 10 parts of butyl oleate, 2 parts of high activity MgO, 7 parts of ZnO, 3 parts of HAV-2, anti-
1.5 parts of old agent RD, 5 parts of sulphur.
The preparation method is the same as that of Example 1 for above-mentioned seal gasket.
Embodiment 2：
A kind of ageing-resistant seal gasket, includes the component of following portions by weight：Acrylic rubber 60, nitrile rubber 40
Part, 12 parts of carbon black N550,20 parts of carbon black N110,5 parts of calcium silicates, 8 parts of butyl oleate, 1 part of high activity MgO, 6 parts of ZnO,
2.5 parts of HAV-2,2.5 parts of preventing aging system, 3 parts of DCP/TCY vulcanizing systems.
Wherein, include 0.3 part of antioxidant NBC, 1.0 parts of anti-aging agent RD, anti-aging agent Bisphenol F 1.0 per a preventing aging system
Part.
The preparation method of above-mentioned ageing-resistant seal gasket, steps are as follows：
(1) by nitrile rubber stripping and slicing, input mixer modeling is practiced, and it is 130 DEG C to mould white silk temperature, after modeling is practiced, is parked for 24 hours, cooling,
It is spare；
(2) in the nitrile rubber input open mill after practicing acrylic rubber and step (1) modeling, the roller through 4~5min
After pressing, turning refining, packet roller glue-line is obtained；Carbon black N550, carbon black N110, calcium silicates, butyl oleate, high activity are sequentially added thereto
MgO, ZnO, HAV-2, antioxidant NBC, anti-aging agent RD and anti-aging agent Bisphenol F, continue to be kneaded, and obtain rubber compound, rubber compound
After turning over the cooling of glue bottom sheet on a mill, 24 are parked, it is spare；
(3) rubber compound after cooling is put into open mill, DCP/TCY vulcanizing systems is added thereto, rubber compound is returned
Refining obtains back mixing glue, then turns over the cooling of glue bottom sheet, spare after parking 12 hours；
(4) back mixing glue after cooling is put into extruder and is extruded into adhesive tape, the adhesive tape of extrusion is then entered into mold forming, it will be at
Rubber cushion after type vulcanizes on vulcanizing press, obtains seal gasket.
Embodiment 3：
A kind of ageing-resistant seal gasket, includes the component of following portions by weight：80 parts of acrylic rubber, nitrile rubber 20
Part, 15 parts of carbon black N550,30 parts of carbon black N110,10 parts of calcium silicates, 12 parts of butyl oleate, 3 parts of high activity MgO, 8 parts of ZnO,
3.5 parts of HAV-2,3.5 parts of preventing aging system, 7 parts of DCP/TCY vulcanizing systems.
In ageing-resistant seal gasket, per portion preventing aging system include 0.7 part of antioxidant NBC, 2.0 parts of anti-aging agent RD,
2.0 parts of anti-aging agent Bisphenol F.
The preparation method of above-mentioned ageing-resistant seal gasket, steps are as follows：
(1) by nitrile rubber stripping and slicing, input mixer modeling is practiced, and it is 150 DEG C to mould white silk temperature, after modeling is practiced, parks 32h, cooling,
It is spare；
(2) in the nitrile rubber input open mill after practicing acrylic rubber and step (1) modeling, the roller through 4~5min
After pressing, turning refining, packet roller glue-line is obtained；Carbon black N550, carbon black N110, calcium silicates, butyl oleate, high activity are sequentially added thereto
MgO, ZnO, HAV-2, antioxidant NBC, anti-aging agent RD and anti-aging agent Bisphenol F, continue to be kneaded, and obtain rubber compound, rubber compound
After turning over the cooling of glue bottom sheet on a mill, 32h is parked, it is spare；
(3) rubber compound after cooling is put into open mill, DCP/TCY vulcanizing systems is added thereto, rubber compound is returned
Refining obtains back mixing glue, then turns over the cooling of glue bottom sheet, spare after parking 24 hours；
(4) back mixing glue after cooling is put into extruder and is extruded into adhesive tape, the adhesive tape of extrusion is then entered into mold forming, it will be at
Rubber cushion after type vulcanizes on vulcanizing press, obtains seal gasket.
The seal gasket that above-described embodiment 1~3 and comparative example 1 obtain is subjected to the Shore A hardness after unaged and aging
It measures and stretching strength determination, wherein aging condition is：Under the conditions of 300 DEG C, aging 96h,
Measurement result is as follows：
In 1~embodiment of embodiment 3, the hardness of seal gasket, tensile strength and heat aging property are good, this table
Bright, the use of DCP/TCY vulcanizing systems can effectively improve resistance to ag(e)ing, the tensile strength of seal gasket, the number of comparative example 1
The tensile strength of seal gasket is deteriorated and firmness change is big according to, it is apparent that sulphur is used only as vulcanizing agent, causing, and says
After bright aging, the poor performance of seal gasket, and performance change of the seal gasket that the present invention obtains before ageing and after aging is few,
Therefore, seal gasket provided by the invention has good ageing-resistant performance.
Claims (8)
1. a kind of ageing-resistant seal gasket, which is characterized in that the component including following portions by weight：Acrylic rubber 60 ~ 80
Part, 20 ~ 40 parts of nitrile rubber, 12 ~ 15 parts of carbon black N550,20 ~ 30 parts of carbon black N110,5 ~ 10 parts of calcium silicates, butyl oleate 8 ~
12 parts, 1 ~ 3 part of high activity MgO, 6 ~ 8 parts of ZnO, 2.5 ~ 3.5 parts of HAV-2,2.5 ~ 3.5 parts of preventing aging system, DCP/TCY vulcanization
3 ~ 7 parts of system.
2. ageing-resistant seal gasket as described in claim 1, which is characterized in that the component including following portions by weight：Propylene
Acid esters rubber 70, nitrile rubber 30,13 parts of carbon black N550,25 parts of carbon black N110,8 parts of calcium silicates, 10 parts of butyl oleate, height are living
2 parts of MgO of property, 7 parts of ZnO, 3 parts of HAV-2,3 parts of preventing aging system, 5 parts of DCP/TCY vulcanizing systems.
3. ageing-resistant seal gasket as claimed in claim 1 or 2, which is characterized in that every portion preventing aging system includes anti-aging agent
0.3 ~ 0.7 part of NBC, 1.0 ~ 2.0 parts of anti-aging agent RD, 1.0 ~ 2.0 parts of anti-aging agent Bisphenol F.
4. ageing-resistant seal gasket as claimed in claim 3, which is characterized in that every portion preventing aging system includes antioxidant NBC
0.5 part, 1.5 parts of anti-aging agent RD, 1.5 parts of anti-aging agent Bisphenol F.
5. the preparation method of the ageing-resistant seal gasket as described in claims 1 or 2 or 4, which is characterized in that steps are as follows：
（1）By nitrile rubber stripping and slicing, input mixer modeling is practiced, and it is 130 ~ 150 DEG C to mould white silk temperature, after modeling is practiced, parks 24 ~ 32h, cold
But, spare；
（2）By acrylic rubber and step（1）Modeling practice after nitrile rubber input open mill in, roll-in through 4 ~ 5min is turned over
After refining, packet roller glue-line is obtained；Sequentially add thereto carbon black N550, carbon black N110, calcium silicates, butyl oleate, high activity MgO,
ZnO, HAV-2, antioxidant NBC, anti-aging agent RD and anti-aging agent Bisphenol F, continue to be kneaded, and obtain rubber compound, and rubber compound is being opened
After mill turns over the cooling of glue bottom sheet, 24 ~ 32h is parked, it is spare；
（3）Rubber compound after cooling is put into open mill, DCP/TCY vulcanizing systems is added thereto, rubber compound back mixing is obtained
Back mixing glue is obtained, the cooling of glue bottom sheet is then turned over, it is spare after parking 12 ~ 24 hours；
（4）Back mixing glue after cooling is put into extruder and is extruded into adhesive tape, the adhesive tape of extrusion is then entered into mold forming, after molding
Rubber cushion vulcanize on vulcanizing press, obtain seal gasket.
6. the preparation method of ageing-resistant seal gasket as claimed in claim 5, which is characterized in that in step（1）In, butyronitrile rubber
The storage period that glue is practiced in glue modeling is 28h.
7. the preparation method of ageing-resistant seal gasket as claimed in claim 5, which is characterized in that in step（2）In, rubber compound
It is 28h to turn over the storage period after glue bottom sheet.
8. the preparation method of ageing-resistant seal gasket as claimed in claim 5, which is characterized in that in step（3）In, back mixing glue
It is 18h to turn over the storage period after glue bottom sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102500.4A CN108410106A (en) | 2018-02-01 | 2018-02-01 | A kind of ageing-resistant seal gasket and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102500.4A CN108410106A (en) | 2018-02-01 | 2018-02-01 | A kind of ageing-resistant seal gasket and preparation method thereof |
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| CN108410106A true CN108410106A (en) | 2018-08-17 |
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| CN201810102500.4A Pending CN108410106A (en) | 2018-02-01 | 2018-02-01 | A kind of ageing-resistant seal gasket and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041585A (en) * | 2019-04-26 | 2019-07-23 | 无锡二橡胶股份有限公司 | A kind of factory formula for the high speed chemical fibre godet spinning polyester filament |
| CN110105696A (en) * | 2019-04-30 | 2019-08-09 | 秦家千 | A kind of preparation method of water lubriucated bearing composite rubber material |
-
2018
- 2018-02-01 CN CN201810102500.4A patent/CN108410106A/en active Pending
Non-Patent Citations (2)
| Title |
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| 杨绪迎: "硫化剂对丙烯酸酯/丁腈并用胶物理性能、形态及其动态力学性能的影响", 《世界橡胶工业》 * |
| 郭建华等: "复合硫化体系对 ACM /NBR 共混胶性能的影响", 《特种橡胶制品》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041585A (en) * | 2019-04-26 | 2019-07-23 | 无锡二橡胶股份有限公司 | A kind of factory formula for the high speed chemical fibre godet spinning polyester filament |
| CN110041585B (en) * | 2019-04-26 | 2021-09-10 | 无锡二橡胶股份有限公司 | Production formula of high-speed chemical fiber godet roller for spinning polyester filament yarns |
| CN110105696A (en) * | 2019-04-30 | 2019-08-09 | 秦家千 | A kind of preparation method of water lubriucated bearing composite rubber material |
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