CN104829939A - FAM-B-methanol-gasoline-resistant low-temperature-resistant low-compressive-deformation ethylene-acrylate rubber material and preparation method thereof - Google Patents
FAM-B-methanol-gasoline-resistant low-temperature-resistant low-compressive-deformation ethylene-acrylate rubber material and preparation method thereof Download PDFInfo
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/17—Amines; Quaternary ammonium compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3462—Six-membered rings
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
Abstract
The invention discloses an FAM-B-methanol-gasoline-resistant low-temperature-resistant low-compressive-deformation ethylene-acrylate rubber material and a preparation method thereof, belonging to the technical field of rubber preparation. The preparation method comprises the following steps: sending 90-110 parts of ethylene-acrylate rubber, 1-4 parts of 4,4'-di(phenylisopropyl)diphenylamine, 0.2-1.4 parts of processing assistant 18D, 0.5-1.8 parts of stearic acid, 0.5-1.3 parts of processing assistant VAM, 0-130 parts of thermo-cracking carbon black N990, 0-70 parts of quick-extrusion carbon black N550 and 2-17 parts of softening and plasticizing agent TP-759 into a Banbury mixer, and banburying to obtain a master batch; and sending the master batch, 1.2-1.9 parts of crosslinking assistant HMDC-1 and 1-3 parts of vulcanizing agent into the Banbury mixer, carrying out secondary compounding, discharging the rubber when the temperature reaches 100 DEG C, and finally, carrying out molding, primary vulcanization and secondary vulcanization. The rubber material has the advantages of excellent FAM B methanol gasoline resistance, low temperature resistance and low compressive permanent deformation.
Description
Technical field
The present invention relates to technical field of rubber preparation, more particularly, relate to a kind of methanol gasoline resistant low temperature resistant again, and there is the thermostat of automobile engine environmental protection ethylene-acrylate rubber material of low compression set performance.
Background technology
Along with improving constantly of automobile emissions standards, the deficiency of petroleum resources, replacement of fuel and low emission are the development trends of automobile industry.At present; methanol gasoline (FAM experimental liquid that is alternative or a new generation used in combination has been started in some countries such as America and Europes; meet DIN51 604-B), this kind of fuel can not only alleviate petroleum resources crisis, and has the advantage of low price, less energy-consumption, low emission.
But the use of above-mentioned fuel is also to automotive sealant, and especially the material of rubber seal proposes higher resistant to chemical media and environmental requirement.FAM B methanol gasoline to the erosion of elastomeric material far away higher than simple gasoline or diesel oil.Ethylene-acrylate rubber has good high temperature resistant oil resistance, but fuel oil resistance performance is not good.Because motor car engine internal space is limited, if its sealing effectiveness can not reach requirement, the micro-fuel oil gas cognition part produced when high temperature is diffused in other system, causes motor car engine to damage.In order to improve the safety in utilization of motor car engine, need the fuel resistance energy improving non-fuel oil ethylene-acrylate rubber sealing material.
Usually adopt in prior art and other elastomeric materials and mode improve its fuel oil resistance performance, but the manufacturing cost of this kind of mode rubber seal is higher, adds production cost.As Chinese Patent Application No. 201310589942.3, the applying date is on November 20th, 2013, invention and created name is: the ethylene acrylic rubber composition for rubber improving fuel resistance, this application case comprises 80 ~ 90 parts of ethylene-acrylate rubbers, 10 ~ 20 parts of acrylic elastomers, 55 ~ 65 parts of carbon black N550,3 ~ 6 parts of softening agent TP-759,2.5 parts of stearic acid, 1 part of scorch retarder 18D, 1 part of anti-aging agent, 445,2 parts of processing aid WB222,1.2 ~ 1.4 parts of vulcanizing agent DIAK No.1,1 part of cocuring agent ACT-55; Namely this application case is a kind of with acrylic elastomer and by the scheme improving fuel oil resistance performance, and elastomeric material production cost is higher, still needs further improvement.
Summary of the invention
1. invent the technical problem that will solve
The object of the invention is to overcome existing motor car engine rubber packing material fuel oil resistance performance, especially the deficiency that the performance of the B of resistance to FAM methanol gasoline is not good, provides a kind of B of resistance to FAM methanol gasoline, low temperature resistant low pressure becomes ethylene-acrylate rubber material and preparation method thereof; Technical scheme provided by the invention, without the need to meeting the requirement of the B of resistance to FAM methanol gasoline with other rubber blendings, improves the safety in utilization of motor car engine, and has advantage that is low temperature resistant, low compression set.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
A kind of B of resistance to FAM methanol gasoline of the present invention, low temperature resistant low pressure become ethylene-acrylate rubber material, comprise following component:
Further, described elastomeric material comprises following component:
Further, the component proportion of described pyrolysis method carbon black N990 is 120 parts.
Preferably, the median size of described pyrolysis method carbon black N990 is 280nm, and nitrogen surface area is 7-11m
3/ g, inhaling sulphur value is 10g/kg, and surface-area is 9m
3/ g, heating Jian Liang≤1.0%, Hui Fen≤0.5%, 45 order Shai Yu Wu≤0.001%, 325 order Shai Yu Wu≤0.1%, 100 order Shai Yu Wu≤0.02%.
A kind of B of resistance to FAM methanol gasoline of the present invention, low temperature resistant low pressure become the preparation method of ethylene-acrylate rubber material, the steps include:
Step one, masterbatch mix: by 90 ~ 110 parts of ethylene-acrylate rubbers, 1 ~ 4 part 4,4'-bis-(propyloxy phenyl base) pentanoic, 0.2 ~ 1.4 part of processing aid 18D, 0.5 ~ 1.8 part of stearic acid, 0.5 ~ 1.3 part of processing aid VAM, 0 ~ 130 part of pyrolysis method carbon black N990,0 ~ 70 part extrudes carbon black N550 and 2 ~ 17 part of softening softening agent TP-759 soon and is sent to banburying in Banbury mixer, obtains master batch;
Step 2, master batch two sections add sulphur: master batch step one obtained, 1.2 ~ 1.9 parts of crosslinking coagent HMDC-1 and 1 ~ 3 part of vulcanizing agents are sent in Banbury mixeies and carried out two-stage mixing, binder removal when temperature reaches 100 DEG C;
Step 3, rubber unvulcanizate sulfuration: after rubber unvulcanizate step 2 obtained is shaping, insert mould, on vulcanizer, sulfuration 180 ~ 190 DEG C × 6min obtains cross-linked rubber finished product, the vulcanization parameters of 180 ~ 190 DEG C × 6min, the vulcanizing agent in rubber unvulcanizate and each component can be made fast crosslinking reaction to occur, and the sulfuration smooth phase is longer;
Step 4, post vulcanization: cross-linked rubber step 3 obtained carries out the post cure of 170 DEG C × 4h, obtain finished product after deburring, inspection.
Further, after step one carries out masterbatch mix, the master batch obtained is parked and carry out subsequent handling again in 8 hours.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following unusual effect:
(1) a kind of B of resistance to FAM methanol gasoline of the present invention, low temperature resistant low pressure become ethylene-acrylate rubber material, break through from Formula Development and production technique, without the need to fuel oil resistance performance can be met with other rubber blendings, especially there is the performance of the excellent B of resistance to FAM methanol gasoline, improve ethylene-acrylate rubber material containing the security used in fuel gas environment, and there is the advantage of low temperature resistant, low compression set, environmental protection;
(2) preparation method of a kind of B of resistance to FAM methanol gasoline of the present invention, low temperature resistant low pressure change ethylene-acrylate rubber material, preparation technology is concise, flow process is simple, production efficiency is high, the rubber unvulcanizate obtained has excellent processability, lays a good foundation for obtaining high-quality ethylene-acrylate rubber material;
(3) preparation method of a kind of B of resistance to FAM methanol gasoline of the present invention, low temperature resistant low pressure change ethylene-acrylate rubber material, it uses median size to be 280nm, and nitrogen surface area is 7-11m
3/ g, inhaling sulphur value is 10g/kg, and surface-area is 9m
3/ g, heating Jian Liang≤1.0% Hui Fen≤0.5%, 45 order Shai Yu Wu≤0.001%, 325 order Shai Yu Wu≤0.1%, the pyrolysis method carbon black N990 of 100 order Shai Yu Wu≤0.02%, when the consumption of this carbon black N990 is 120 parts, can reaches hardness and be 70 degree and swelling minimum in FAM B methanol gasoline and compression set is lower.
Embodiment
For understanding content of the present invention further, below in conjunction with embodiment, the invention will be further described.
Embodiment 1
A kind of B of resistance to FAM methanol gasoline of the present embodiment, low temperature resistant low pressure become ethylene-acrylate rubber material, comprise following component:
In the present embodiment, acrylate rubber is the ethylene-acrylate rubber that du pont company produces, and the fast carbon black that extrudes is that the N550 that Cabot Co., Ltd produces extrudes carbon black soon; Pyrolysis method carbon black is the maple leaf board N990 carbon black that Canada produces; Stearic acid is that Malaysian southern grease company produces; 4,4' bis-(propyloxy phenyl base) pentanoic is the anti-aging agent 445 (No. CAS: 10081-67-1) that Jiangsu Huada Chemical Group Co., Ltd. produces; The supplier of processing aid VAM (No. CAS: 63231-60-7), processing aid 18D (No. CAS: 124-30-1), softening softening agent TP-795 (No. CAS: 141-17-3), crosslinking coagent HMDC-1 (No. CAS: 143-06-6) and vulcanizing agent 1,8-diazabicyclo [5.4.0] 11 carbon-7-alkene (No. CAS: 6674-22-2) is all upper seascape favour Chemical Co., Ltd.s.
The median size of the pyrolysis method carbon black N990 that the present embodiment uses is 280nm, and nitrogen surface area is 7-11m
3/ g, suction sulphur value is 10g/kg, CTAB method surface-area is 9m
3/ g, heating Jian Liang≤1.0%, Hui Fen≤0.5%, 45 order Shai Yu Wu≤0.001%, 325 order Shai Yu Wu≤0.1%, 100 order Shai Yu Wu≤0.02%.This carbon black is low structure level carbon black, and surfactivity is lower, and the consumption in formula constituent can be very large, and reach higher intensity to reduce gum content, lower compression set, lower immersion oil is swelling.And ethylene-acrylate rubber is in FAM B methanol gasoline, very easily occurs larger swelling, when the consumption of pyrolysis method carbon black N990 is at 120 parts, the hardness number that hardness is 70 degree can be met, the gum content of material can be reduced again.When gum content is lower, that can offset that a part of ethylene-acrylate rubber occurs in FAM B methanol gasoline is swelling.
The process that the present embodiment prepares the B of resistance to FAM methanol gasoline, low temperature resistant low pressure becomes ethylene-acrylate rubber material into:
Step one, masterbatch mix: by 100 parts of ethylene-acrylate rubbers, 2 part 4,4'-bis-(propyloxy phenyl base) pentanoic, 0.5 part of processing aid 18D, 1.2 parts of stearic acid, 1 part of processing aid VAM, 120 parts of pyrolysis method carbon black N990 and 10 part of softening softening agent TP-759 are sent to banburying in Banbury mixer, obtain master batch, and this master batch is parked 8 hours, in these 8 hours of parking, each component of master batch can obtain disperseing the most fully, and the high-quality contributing to follow-up master batch is shaping.
Step 2, master batch two sections add sulphur: master batch step one obtained, 1.8 parts of crosslinking coagent HMDC-1 and 2 part vulcanizing agents 1,8-diazabicyclo [5.4.0] 11 carbon-7-alkene is sent in Banbury mixer and is carried out two-stage mixing, binder removal when temperature reaches 100 DEG C, binder removal at this temperature, can ensure that vulcanizing agent has good dispersiveness in master batch, also can ensure that vulcanizing agent crosslinking reaction does not occur when banburying, there is not incipient scorch in sizing material.
Step 3, rubber unvulcanizate sulfuration: after rubber unvulcanizate step 2 obtained is shaping, insert mould, on vulcanizer, sulfuration 185 DEG C × 6min obtains cross-linked rubber finished product, the present embodiment sulfuration under 185 DEG C of temperature condition, the vulcanizing agent in rubber unvulcanizate and each component can be made fast crosslinking reaction to occur, and the sulfuration smooth phase is longer.
Step 4, post vulcanization: cross-linked rubber step 3 obtained carries out the post cure of 170 DEG C × 4h, to deepen the cross-linking density of cross-linked rubber further, obtain finished product after deburring, inspection.
The present embodiment is broken through from Formula Development and production technique, preparation technology is concise, flow process is simple, production efficiency is high, the rubber unvulcanizate prepared has excellent processability, lay a good foundation for obtaining high-quality ethylene-acrylate rubber material, without the need to fuel oil resistance performance can be met with other rubber blendings, especially there is the performance of the excellent B of resistance to FAM methanol gasoline, improve ethylene-acrylate rubber material containing the security used in fuel gas environment, and there is the advantage of low temperature resistant, low compression set, environmental protection.
The B of the resistance to FAM methanol gasoline that the present embodiment obtains, low temperature resistant low pressure become the performance of ethylene-acrylate rubber material as shown in table 1-1:
Table 1-1 embodiment 1 B of resistance to FAM methanol gasoline, low temperature resistant low pressure become ethylene-acrylate rubber testing of materials performance
Embodiment 2
A kind of B of resistance to FAM methanol gasoline of the present embodiment, low temperature resistant low pressure become ethylene-acrylate rubber material, comprise following component:
The each component raw material of the present embodiment to derive from embodiment 1 identical.
The process that the present embodiment prepares the B of resistance to FAM methanol gasoline, low temperature resistant low pressure becomes ethylene-acrylate rubber material into:
Step one, masterbatch mix: according to said components proportioning, the raw material outside crosslinking coagent HMDC-1, vulcanizing agent 1,8-diazabicyclo [5.4.0] 11 carbon-7-alkene is sent to banburying in Banbury mixer, obtains master batch;
Step 2, master batch, crosslinking coagent HMDC-1, vulcanizing agent 1,8-diazabicyclo [5.4.0] the 11 carbon-7-alkene parked 8 hours are put into Banbury mixer together and carried out two-stage mixing, binder removal when temperature reaches 100 DEG C.
Step 3, sulfuration: two sections are added the rubber unvulcanizate after sulphur shaping after insert mould, on vulcanizer, sulfuration 180 DEG C × 6min obtains cross-linked rubber finished product.
Step 4, post vulcanization: the post cure cross-linked rubber obtained being carried out 170 DEG C × 4h, to deepen the cross-linking density of cross-linked rubber further.
The B of the resistance to FAM methanol gasoline that the present embodiment obtains, low temperature resistant low pressure become the performance of ethylene-acrylate rubber material as shown in table 2-1:
Table 2-1 embodiment 2 B of resistance to FAM methanol gasoline, low temperature resistant low pressure become ethylene-acrylate rubber testing of materials performance
The compression set performance of the ethylene-acrylate rubber material that the present embodiment obtains, the performance of the B of resistance to FAM methanol gasoline are slightly weaker than embodiment 1, but the performance such as low temperature resistant, low compression set is all better than conventional rubber material.
Embodiment 3
A kind of B of resistance to FAM methanol gasoline of the present embodiment, low temperature resistant low pressure become ethylene-acrylate rubber material, comprise following component:
The source of each component raw material of the present embodiment is identical with embodiment 1.
The process that the present embodiment prepares the B of resistance to FAM methanol gasoline, low temperature resistant low pressure becomes ethylene-acrylate rubber material into:
Step one, masterbatch mix: according to said components proportioning, the raw material outside crosslinking coagent HMDC-1, vulcanizing agent 1,8-diazabicyclo [5.4.0] 11 carbon-7-alkene is sent to banburying in Banbury mixer, obtains master batch.
Step 2, master batch, crosslinking coagent HMDC-1, vulcanizing agent 1,8-diazabicyclo [5.4.0] the 11 carbon-7-alkene parked 8 hours are put into Banbury mixer together and carried out two-stage mixing, binder removal when temperature reaches 100 DEG C.
Step 3, sulfuration: two sections are added the rubber unvulcanizate after sulphur shaping after insert mould, on vulcanizer, sulfuration 190 DEG C × 6min obtains cross-linked rubber finished product.
Step 4, post vulcanization: the post cure cross-linked rubber obtained being carried out 170 DEG C × 4h, to deepen the cross-linking density of cross-linked rubber further.
The table 2-1 that the B of the resistance to FAM methanol gasoline that the present embodiment obtains, low temperature resistant low pressure become in the performance of ethylene-acrylate rubber material and embodiment 2 is close.
Embodiment 4
A kind of B of resistance to FAM methanol gasoline of the present embodiment, low temperature resistant low pressure become ethylene-acrylate rubber material, comprise following component:
The source of each component raw material of the present embodiment is identical with embodiment 1.
The process that the present embodiment prepares the B of resistance to FAM methanol gasoline, low temperature resistant low pressure becomes ethylene-acrylate rubber material into:
Step one, masterbatch mix: according to said components proportioning, the raw material outside crosslinking coagent HMDC-1, vulcanizing agent 1,8-diazabicyclo [5.4.0] 11 carbon-7-alkene is sent to banburying in Banbury mixer, obtains master batch.
Step 2, master batch, crosslinking coagent HMDC-1, vulcanizing agent 1,8-diazabicyclo [5.4.0] the 11 carbon-7-alkene parked 8 hours are put into Banbury mixer together and carried out two-stage mixing, binder removal when temperature reaches 100 DEG C.
Step 3, sulfuration: two sections are added the rubber unvulcanizate after sulphur shaping after insert mould, on vulcanizer, sulfuration 188 DEG C × 6min obtains cross-linked rubber finished product.
Step 4, post vulcanization: the post cure cross-linked rubber obtained being carried out 170 DEG C × 4h, to deepen the cross-linking density of cross-linked rubber further.
The table 1-1 that the B of the resistance to FAM methanol gasoline that the present embodiment obtains, low temperature resistant low pressure become in the performance of ethylene-acrylate rubber material and embodiment 1 is close, and the B of resistance to FAM methanol gasoline and compression set performance are slightly weaker than embodiment 1.
Embodiment 1 ~ 4 is by after the carbon black of different sorts and proportioning and softening softening agent, crosslinking coagent, the coordinating of vulcanizing agent, the rubber unvulcanizate obtained can reach following requirement: (1) is at FAM B methanol gasoline (conformance with standard DIN 51604-B, component: 84.5% volume content meets FAM A liquid, the methyl alcohol of 15% volume content, the water of 0.5% volume content of DIN 51604-A (FAM A) standard), under 23 DEG C of conditions, after soaking 46h, tensile strength at yield >=5Mpa, elongation >=100%, changes in weight≤70%; (2) temperature limit of brittleness is not higher than-35 DEG C; (3) PV3307 that germany volkswagen requires tests, 23 DEG C × 94h after strain amount≤40%, 120 DEG C × 94h after strain amount≤60%.
In embodiment 1 ~ 4, the over-all properties of embodiment 1 is optimum, and far above the requirement of technical indicator, reliability is the most outstanding, easy to utilize.
Claims (6)
1. the B of resistance to FAM methanol gasoline, low temperature resistant low pressure become an ethylene-acrylate rubber material, it is characterized in that: comprise following component:
2. a kind of B of resistance to FAM methanol gasoline according to claim 1, low temperature resistant low pressure become ethylene-acrylate rubber material, it is characterized in that: comprise following component:
3. a kind of B of resistance to FAM methanol gasoline according to claim 1 and 2, low temperature resistant low pressure become ethylene-acrylate rubber material, it is characterized in that: the component proportion of described pyrolysis method carbon black N990 is 120 parts.
4. a kind of B of resistance to FAM methanol gasoline according to claim 3, low temperature resistant low pressure become ethylene-acrylate rubber material, it is characterized in that: the median size of described pyrolysis method carbon black N990 is 280nm, and nitrogen surface area is 7-11m
3/ g, inhaling sulphur value is 10g/kg, and surface-area is 9m
3/ g, heating Jian Liang≤1.0%, Hui Fen≤0.5%, 45 order Shai Yu Wu≤0.001%, 325 order Shai Yu Wu≤0.1%, 100 order Shai Yu Wu≤0.02%.
5. a preparation method for the B of resistance to FAM methanol gasoline, low temperature resistant low pressure change ethylene-acrylate rubber material, the steps include:
Step one, masterbatch mix: by 90 ~ 110 parts of ethylene-acrylate rubbers, 1 ~ 4 part 4,4'-bis-(propyloxy phenyl base) pentanoic, 0.2 ~ 1.4 part of processing aid 18D, 0.5 ~ 1.8 part of stearic acid, 0.5 ~ 1.3 part of processing aid VAM, 0 ~ 130 part of pyrolysis method carbon black N990,0 ~ 70 part extrudes carbon black N550 and 2 ~ 17 part of softening softening agent TP-759 soon and is sent to banburying in Banbury mixer, obtains master batch;
Step 2, master batch two sections add sulphur: master batch step one obtained, 1.2 ~ 1.9 parts of crosslinking coagent HMDC-1 and 1 ~ 3 part of vulcanizing agents are sent in Banbury mixeies and carried out two-stage mixing, binder removal when temperature reaches 100 DEG C;
Step 3, rubber unvulcanizate sulfuration: after rubber unvulcanizate step 2 obtained is shaping, insert mould, on vulcanizer, sulfuration 180 ~ 190 DEG C × 6min obtains cross-linked rubber finished product;
Step 4, post vulcanization: cross-linked rubber step 3 obtained carries out the post cure of 170 DEG C × 4h, obtain finished product after deburring, inspection.
6. the preparation method of a kind of B of resistance to FAM methanol gasoline according to claim 5, low temperature resistant low pressure change ethylene-acrylate rubber material, is characterized in that: parked by the master batch obtained after step one carries out masterbatch mix and carry out subsequent handling again in 8 hours.
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| CN105237929A (en) * | 2015-11-18 | 2016-01-13 | 南京七四二五橡塑有限责任公司 | Environment-friendly low-cost acrylate sizing material |
| CN106800699A (en) * | 2017-02-23 | 2017-06-06 | 安徽中鼎密封件股份有限公司 | A kind of ethylene-acrylate rubber product and preparation method thereof |
| CN113024937A (en) * | 2021-02-23 | 2021-06-25 | 安徽中鼎密封件股份有限公司 | Low-temperature-resistant low-swelling ethylene acrylate rubber material and preparation method thereof |
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Effective date of registration: 20160817 Address after: 210061 Jiangsu Province dragon High-tech Zone of Nanjing City Road No. 6 Applicant after: Nanjing Jinsanli Polymer Technology Co Ltd Address before: 210061 Jiangsu city of Nanjing province Nanjing high tech Development Zone, Liuzhou Road No. 6 Applicant before: Nanjing Jinsanli Rubber & Plastic Co., Ltd. |
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