CN116535751A - Long-life accumulator capsule and preparation method thereof - Google Patents
Long-life accumulator capsule and preparation method thereof Download PDFInfo
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- CN116535751A CN116535751A CN202310535117.9A CN202310535117A CN116535751A CN 116535751 A CN116535751 A CN 116535751A CN 202310535117 A CN202310535117 A CN 202310535117A CN 116535751 A CN116535751 A CN 116535751A
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- 239000002775 capsule Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 67
- 229920001971 elastomer Polymers 0.000 claims abstract description 31
- 238000004073 vulcanization Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 239000004014 plasticizer Substances 0.000 claims abstract description 18
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 72
- 230000003712 anti-aging effect Effects 0.000 claims description 50
- 239000006229 carbon black Substances 0.000 claims description 50
- 239000011787 zinc oxide Substances 0.000 claims description 36
- 229920000459 Nitrile rubber Polymers 0.000 claims description 33
- 239000002390 adhesive tape Substances 0.000 claims description 32
- 239000007921 spray Substances 0.000 claims description 22
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 18
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 13
- 229910052717 sulfur Inorganic materials 0.000 claims description 13
- 239000011593 sulfur Substances 0.000 claims description 13
- 238000007670 refining Methods 0.000 claims description 11
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 238000004898 kneading Methods 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 abstract description 22
- 239000000463 material Substances 0.000 abstract description 16
- 239000004636 vulcanized rubber Substances 0.000 abstract description 6
- 239000006057 Non-nutritive feed additive Substances 0.000 abstract description 4
- 230000004913 activation Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000012744 reinforcing agent Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 13
- 239000007787 solid Substances 0.000 description 12
- 239000010985 leather Substances 0.000 description 11
- 238000004146 energy storage Methods 0.000 description 7
- 238000005303 weighing Methods 0.000 description 7
- 238000005336 cracking Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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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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- 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
- C08K3/02—Elements
- C08K3/04—Carbon
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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
- C08K3/02—Elements
- C08K3/06—Sulfur
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3437—Six-membered rings condensed with carbocyclic rings
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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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/37—Thiols
- C08K5/378—Thiols containing heterocyclic rings
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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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/45—Heterocyclic compounds having sulfur in the ring
- C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
- C08K5/47—Thiazoles
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a long-life accumulator capsule and a preparation method thereof, comprising the following steps: processing aids such as a reinforcing agent, a plasticizer, a vulcanizing agent and the like are sequentially added into raw rubber, rubber strips are obtained after plasticating and mixing operations, the rubber strips are melted and injected into a die cavity through a three-dimensional injection machine, pressure maintaining and vulcanization are carried out, and the auxiliary agents are matched with each other and are vulcanized into a whole, so that the capsule bulge demolding process has no tearing phenomenon, and good processing manufacturability is achieved. The energy accumulator capsule has good oil resistance and mechanical properties, can effectively reduce apparent activation energy of vulcanization reaction and increase network structure parameters of vulcanized rubber, so that the capsule material has good mechanical properties such as strength, elasticity and the like and excellent high fatigue life characteristic.
Description
Technical Field
The invention belongs to the technical field of hydraulic energy storage rubber, relates to long-life energy storage capsules, and further relates to a preparation method of the energy storage capsules.
Background
The leather bag type energy accumulator mainly comprises an energy accumulator shell, a leather bag, an oil inlet valve and an oil outlet valve. The hydraulic pressure energy storage device has various functions of energy storage, pressure stabilization, leakage repairing, buffering and the like, is widely applied to hydraulic systems of coal mines, metallurgy, petrochemical industry, buildings and the like, and is a traditional irreplaceable hydraulic part.
However, domestic accumulator leather bag manufacturers have the problems of old original formula, single processing technology, different raw material quality, material reduction in the process of operation, and the like, so that the domestic accumulator leather bag quality is not too hard, and the characteristics of high fatigue life, high mechanical property, flex cracking, processing manufacturability and the like cannot be considered, so that the domestic accumulator leather bag is difficult to use in a hydraulic system with long service life, safety and reliability. The leather bags used in the current domestic hydraulic systems are mostly imported, and the phenomena of low-price sales of shells and high-price purchasing of leather bags are faced in the aspect of hydraulic energy storage technology, so that the optimal design of the long-service-life and high-quality energy storage leather bag material formula and the processing technology method are needed.
Disclosure of Invention
The invention aims to provide a long-life accumulator capsule, which solves the problem of short service life of an accumulator capsule in the prior art.
The technical scheme adopted by the invention is that the long-life accumulator capsule comprises the following components in parts by weight:
90-110 parts of nitrile rubber, 330-50 parts of carbon black N, 10-20 parts of spray carbon black, 20-30 parts of plasticizing agent DOS, 2-4 parts of zinc oxide ZnO, 1-2 parts of SA, 1-2 parts of silane coupling agent Si669, 1.4-2.6 parts of anti-aging agent, 1.4-2.6 parts of accelerator, 0.4-0.6 part of vulcanization accelerator DM and 0.4-0.6 part of sulfur S.
The invention is also characterized in that:
the anti-aging agent comprises 1-2 parts of anti-aging agent RD and 0.4-0.6 part of anti-aging agent MB.
The accelerator comprises 1-2 parts of accelerator CBS and 0.4-0.6 part of accelerator TT.
The nitrile rubber is NBRDN401 nitrile rubber with 18 percent of acrylonitrile content.
A preparation method of a long-life accumulator capsule comprises the following steps.
Step 1, weighing 90-110 parts of nitrile rubber, 330-50 parts of carbon black N, 10-20 parts of spray carbon black, 20-30 parts of plasticizing agent DOS, 2-4 parts of zinc oxide ZnO, 1-2 parts of SA, 1-2 parts of silane coupling agent Si669, 1-2 parts of anti-aging agent RD, 0.4-0.6 part of anti-aging agent MB, 1-2 parts of accelerator CBS, 0.4-0.6 part of accelerator TT, 0.4-0.6 part of vulcanization accelerator DM and 0.4-0.6 part of sulfur S according to parts by weight;
step 2, plasticizing the nitrile rubber by an open mill, transferring the nitrile rubber into an internal mixer, sequentially adding carbon black N330, spray carbon black, SA, zinc oxide ZnO, a silane coupling agent Si669, an anti-aging agent RD, an anti-aging agent MB, an accelerator CBS, an accelerator TT and a plasticizer DOS, kneading for 10min, discharging and cooling to obtain a first mixed rubber;
step 3, carrying out remilling on the first-time rubber compound on an open mill, and adding a vulcanization accelerator DM in the remilling process to obtain a capsule film;
and 4, carrying out back refining on the capsule film by an open mill, processing into adhesive tapes, placing the adhesive tapes into a feed inlet of an injection machine, injecting the adhesive tapes into the injection machine until the adhesive tapes are full of a die cavity by a nozzle, blowing air after pressure maintaining and vulcanizing, and demoulding to obtain the long-service-life energy accumulator capsule.
The beneficial effects of the invention are as follows: according to the long-life accumulator capsule, NBRD401 with the acrylonitrile content of 18% in mass fraction and vulcanizing agent S (sulfur) are adopted, so that the accumulator capsule has good oil resistance and mechanical properties; the special chain structure in the carbon black and the spray carbon black can physically adsorb colloid, the apparent activation energy of vulcanization reaction is effectively reduced in an SA sizing material vulcanization system, and the network structure parameters of the vulcanized rubber are increased, so that the capsule material has good mechanical properties such as strength, elasticity and the like, and excellent high fatigue life characteristics; the anti-aging agent RD, the anti-aging agent MB, the accelerator CBS and the accelerator TT can endow the vulcanized rubber with good flex cracking property. According to the preparation method of the long-life accumulator capsule, processing aids such as a reinforcing agent, a plasticizer, a vulcanizing agent and the like are sequentially added into raw rubber, the rubber strip is obtained after plasticating and mixing operations, the rubber strip is melted and injected into a die cavity through a three-dimensional injection machine, pressure maintaining and vulcanizing are carried out, the auxiliary agents are matched with each other and vulcanization are integrally formed, so that the capsule is free from tearing phenomenon in the swelling and demolding process, and the processing manufacturability is good.
Drawings
FIG. 1 is a graph of test stage 1 results in a fatigue life test report for a long life accumulator capsule of the present invention;
FIG. 2 is a graph of test phase 2 results in a fatigue life test report for a long life accumulator capsule of the present invention;
FIG. 3 is a graph of test stage 3 results in a fatigue life test report for a long life accumulator capsule of the present invention.
Detailed Description
The invention will be described in detail below with reference to the drawings and the detailed description.
The long-life accumulator capsule comprises the following components in parts by weight:
90-110 parts of nitrile rubber, 330-50 parts of carbon black N, 10-20 parts of spray carbon black, 20-30 parts of plasticizing agent DOS, 2-4 parts of zinc oxide ZnO, 1-2 parts of SA, 1-2 parts of silane coupling agent Si669, 1-2 parts of anti-aging agent RD, 0.4-0.6 part of anti-aging agent MB, 1-2 parts of accelerator CBS, 0.4-0.6 part of accelerator TT, 0.4-0.6 part of vulcanization accelerator DM and 0.4-0.6 part of sulfur S. The nitrile rubber is NBRDN401 nitrile rubber with 18% acrylonitrile content, which is produced by ZEON corporation of Japan.
The invention changes the crosslinking density and structure of rubber by regulating the ratio of vulcanizing agent and accelerator. Through the orthogonal test, for the purpose of flex cracking, it is finally preferable to have the best flex cracking under the conditions of accelerator CBS (1-2 parts), accelerator TT (0.4-0.6 parts) and sulfur S (0.4-0.6 parts) in terms of comprehensive economic cost. The leather bag type energy accumulator utilizes the incompressibility of oil liquid and the compressibility of gas to realize the accumulation of hydraulic pressure, and the leather bag is in a cyclic state of expansion and contraction for a long time, so that the leather bag material is necessarily required to have good high fatigue life characteristics. According to the invention, carbon black and spray carbon black are adopted, the special chain structure in the carbon black and spray carbon black can physically adsorb colloid, the apparent activation energy of vulcanization reaction is effectively reduced in an SA sizing material vulcanization system, and the network structure parameters of the vulcanized rubber are increased, so that the capsule material has good mechanical properties such as strength, elasticity and the like, and excellent high fatigue life characteristics; processing aids such as a reinforcing agent, a plasticizer, a vulcanizing agent and the like are sequentially added into raw rubber, rubber strips are obtained after plasticating and mixing operations, the rubber strips are melted and injected into a die cavity through a three-dimensional injection machine, pressure maintaining and vulcanization are carried out, and the auxiliary agents are matched with each other and are vulcanized into a whole, so that the capsule has no tearing phenomenon in the air blowing and demolding process, and good processing manufacturability is achieved.
A preparation method of a long-life accumulator capsule comprises the following steps.
Step 1, weighing 90-110 parts of nitrile rubber, 330-50 parts of carbon black N, 10-20 parts of spray carbon black, 20-30 parts of plasticizing agent DOS, 2-4 parts of zinc oxide ZnO, 1-2 parts of SA, 1-2 parts of silane coupling agent Si669, 1-2 parts of anti-aging agent RD, 0.4-0.6 part of anti-aging agent MB, 1-2 parts of accelerator CBS, 0.4-0.6 part of accelerator TT, 0.4-0.6 part of vulcanization accelerator DM and 0.4-0.6 part of sulfur S according to parts by weight;
step 2, plasticizing the nitrile rubber by an open mill, transferring the nitrile rubber into an internal mixer, kneading the nitrile rubber in the open mill for 2-5min at the temperature of 40-60 ℃ for 1-3min at the temperature of 100-120 ℃ in the internal mixer, sequentially adding carbon black N330, spray carbon black, SA, zinc oxide ZnO, a silane coupling agent Si669, an anti-aging agent RD, an anti-aging agent MB, an accelerator CBS, an accelerator TT and a plasticizer DOS, discharging and cooling to obtain a first-time rubber compound; the plasticizer DOS is a liquid auxiliary agent, the carbon black, the accelerator, the anti-aging agent and other auxiliary agents are solid powder auxiliary agents, and the principle of 'solid before liquid' is followed in the process of adding small materials;
step 3, carrying out back refining on the first mixed rubber on an open mill, carrying out thin-pass on the mixed rubber for 8-18 times at the temperature of 30-50 ℃ in the back refining process, and forming a triangular bag for 8-18 times, and adding a vulcanization accelerator DM in the back refining process to obtain a capsule film;
and 4, back refining the capsule film by an open mill, processing the capsule film into adhesive tapes, after the injection machine works stably, placing the adhesive tapes into a feed inlet of the injection machine, injecting the adhesive tapes until the adhesive tapes are full of a die cavity by a nozzle, blowing a proper amount of air after pressure maintaining and vulcanization so as to prevent the capsule from tearing, and placing a protection device for demoulding to obtain the long-service-life energy accumulator capsule.
Through the mode, the long-life accumulator capsule adopts NBRD401 with the acrylonitrile content of 18 percent by mass and vulcanizing agent S (sulfur), so that the accumulator capsule has good oil resistance and mechanical properties; the special chain structure in the carbon black and the spray carbon black can physically adsorb colloid, the apparent activation energy of vulcanization reaction is effectively reduced in the SA sizing material vulcanization system, and the network structure parameters of the vulcanized rubber are increased, so that the capsule material has good mechanical properties such as strength, elasticity and the like, and excellent high fatigue life characteristics, and a test report is shown in figure 1; the anti-aging agent RD, the anti-aging agent MB, the accelerator CBS and the accelerator TT can endow the vulcanized rubber with good flex cracking property. According to the preparation method of the long-life accumulator capsule, processing aids such as a reinforcing agent, a plasticizer, a vulcanizing agent and the like are sequentially added into raw rubber, the rubber strip is obtained after plasticating and mixing operations, the rubber strip is melted and injected into a die cavity through a three-dimensional injection machine, pressure maintaining and vulcanizing are carried out, the auxiliary agents are matched with each other and vulcanization are integrally formed, so that the capsule is free from tearing phenomenon in the swelling and demolding process, and the processing manufacturability is good.
Example 1
Step 1, weighing 100 parts of NBRDN401 nitrile rubber with 18% of acrylonitrile content, 330 parts of carbon black N, 10 parts of spray carbon black, 20 parts of plasticizing agent DOS, 3 parts of zinc oxide ZnO, 1.5 parts of SA, 1.5 parts of silane coupling agent Si669, 1.5 parts of anti-aging agent RD, 0.5 part of anti-aging agent MB, 1.5 parts of accelerator CBS, 0.5 part of accelerator TT, 0.5 part of vulcanization accelerator DM and 0.5 part of sulfur S according to parts by weight;
step 2, plasticizing the nitrile rubber by an open mill, and transferring the plasticized nitrile rubber into an internal mixer, wherein the temperature in the open mill is 40 ℃, the time is 5min, and the temperature in the internal mixer is 100 ℃ and the time is 3min; adding carbon black N330, spray carbon black, SA, zinc oxide ZnO, a silane coupling agent Si669, an anti-aging agent RD, an anti-aging agent MB, an accelerator CBS, an accelerator TT and a plasticizer DOS in sequence, kneading for 10min, discharging and cooling to obtain a first-pass rubber compound; the plasticizer DOS is a liquid auxiliary agent, the carbon black, the accelerator, the anti-aging agent and other auxiliary agents are solid powder auxiliary agents, and the principle of 'solid before liquid' is followed in the process of adding small materials;
step 3, carrying out remixing on the first mixed rubber on an open mill, carrying out thin-pass 18 times at the temperature of 30 ℃, and forming a triangular bag 18 times, and adding a vulcanization accelerator DM in the remixing process to obtain a capsule film;
and 4, carrying out back refining on the capsule film by an open mill, processing into adhesive tapes, placing the adhesive tapes into a feed inlet of an injection machine, injecting the adhesive tapes into the injection machine until the adhesive tapes are full of a die cavity by a nozzle, blowing air after pressure maintaining and vulcanizing, and demoulding to obtain the long-service-life energy accumulator capsule.
Example 2
Step 1, weighing 100 parts of NBRDN401 nitrile rubber with 18% of acrylonitrile content, 330 parts of carbon black N, 10 parts of spray carbon black, 25 parts of plasticizing agent DOS, 3 parts of zinc oxide ZnO, 1.5 parts of SA, 1.5 parts of silane coupling agent Si669, 1.5 parts of anti-aging agent RD, 0.5 part of anti-aging agent MB, 1.5 parts of accelerator CBS, 0.5 part of accelerator TT, 0.5 part of vulcanization accelerator DM and 0.5 part of sulfur S according to parts by weight;
step 2, plasticizing the nitrile rubber by an open mill, and transferring the plasticized nitrile rubber into an internal mixer, wherein the temperature in the open mill is 40 ℃, the time is 4min, and the temperature in the internal mixer is 100 ℃ and the time is 3min; adding carbon black N330, spray carbon black, SA, zinc oxide ZnO, a silane coupling agent Si669, an anti-aging agent RD, an anti-aging agent MB, an accelerator CBS, an accelerator TT and a plasticizer DOS in sequence, kneading for 10min, discharging and cooling to obtain a first-pass rubber compound; the plasticizer DOS is a liquid auxiliary agent, the carbon black, the accelerator, the anti-aging agent and other auxiliary agents are solid powder auxiliary agents, and the principle of 'solid before liquid' is followed in the process of adding small materials;
step 3, carrying out remixing on the first mixed rubber on an open mill, carrying out thin ventilation for 15 times at the temperature of 35 ℃, and forming a triangular bag for 15 times, and adding a vulcanization accelerator DM in the remixing process to obtain a capsule film;
and 4, carrying out back refining on the capsule film by an open mill, processing into adhesive tapes, placing the adhesive tapes into a feed inlet of an injection machine, injecting the adhesive tapes into the injection machine until the adhesive tapes are full of a die cavity by a nozzle, blowing air after pressure maintaining and vulcanizing, and demoulding to obtain the long-service-life energy accumulator capsule.
Example 3
Step 1, weighing 100 parts of NBRDN401 nitrile rubber with 18% of acrylonitrile content, 330 parts of carbon black N, 10 parts of spray carbon black, 25 parts of plasticizing agent DOS, 3 parts of zinc oxide ZnO, 1.5 parts of SA, 1.5 parts of silane coupling agent Si669, 1.5 parts of anti-aging agent RD, 0.5 part of anti-aging agent MB, 1.5 parts of accelerator CBS, 0.5 part of accelerator TT, 0.5 part of vulcanization accelerator DM and 0.5 part of sulfur S according to parts by weight;
step 2, plasticizing the nitrile rubber by an open mill, and transferring the plasticized nitrile rubber into an internal mixer, wherein the temperature in the open mill is 50 ℃, the time is 2min, and the temperature in the internal mixer is 110 ℃ and the time is 3min; adding carbon black N330, spray carbon black, SA, zinc oxide ZnO, a silane coupling agent Si669, an anti-aging agent RD, an anti-aging agent MB, an accelerator CBS, an accelerator TT and a plasticizer DOS in sequence, kneading for 10min, discharging and cooling to obtain a first-pass rubber compound; the plasticizer DOS is a liquid auxiliary agent, the carbon black, the accelerator, the anti-aging agent and other auxiliary agents are solid powder auxiliary agents, and the principle of 'solid before liquid' is followed in the process of adding small materials;
step 3, carrying out remixing on the first mixed rubber on an open mill, carrying out thin-pass 12 times at the temperature of 40 ℃, and forming a triangular bag 12 times, and adding a vulcanization accelerator DM in the remixing process to obtain a capsule film;
and 4, carrying out back refining on the capsule film by an open mill, processing into adhesive tapes, placing the adhesive tapes into a feed inlet of an injection machine, injecting the adhesive tapes into the injection machine until the adhesive tapes are full of a die cavity by a nozzle, blowing air after pressure maintaining and vulcanizing, and demoulding to obtain the long-service-life energy accumulator capsule.
Example 4
Step 1, weighing 100 parts of NBRDN401 nitrile rubber with 18% of acrylonitrile content, 330 parts of carbon black N, 15 parts of spray carbon black, 30 parts of plasticizing agent DOS, 3 parts of zinc oxide ZnO, 1.5 parts of SA, 1.5 parts of silane coupling agent Si669, 1.5 parts of anti-aging agent RD, 0.5 part of anti-aging agent MB, 1.5 parts of accelerator CBS, 0.5 part of accelerator TT, 0.5 part of vulcanization accelerator DM and 0.5 part of sulfur S according to parts by weight;
step 2, plasticizing the nitrile rubber by an open mill, and transferring the plasticized nitrile rubber into an internal mixer, wherein the temperature in the open mill is 50 ℃, the time is 3min, and the temperature in the internal mixer is 110 ℃ and the time is 2min; adding carbon black N330, spray carbon black, SA, zinc oxide ZnO, a silane coupling agent Si669, an anti-aging agent RD, an anti-aging agent MB, an accelerator CBS, an accelerator TT and a plasticizer DOS in sequence, kneading for 10min, discharging and cooling to obtain a first-pass rubber compound; the plasticizer DOS is a liquid auxiliary agent, the carbon black, the accelerator, the anti-aging agent and other auxiliary agents are solid powder auxiliary agents, and the principle of 'solid before liquid' is followed in the process of adding small materials;
step 3, carrying out remixing on the first mixed rubber on an open mill, carrying out thin ventilation for 8 times at the temperature of 45 ℃, and forming a triangular bag for 8 times, and adding a vulcanization accelerator DM in the remixing process to obtain a capsule film;
and 4, carrying out back refining on the capsule film by an open mill, processing into adhesive tapes, placing the adhesive tapes into a feed inlet of an injection machine, injecting the adhesive tapes into the injection machine until the adhesive tapes are full of a die cavity by a nozzle, blowing air after pressure maintaining and vulcanizing, and demoulding to obtain the long-service-life energy accumulator capsule.
Example 5
Step 1, weighing 100 parts of NBRDN401 nitrile rubber with 18% of acrylonitrile content, 330 parts of carbon black N, 20 parts of spray carbon black, 30 parts of plasticizing agent DOS, 3 parts of zinc oxide ZnO, 1.5 parts of SA, 1.5 parts of silane coupling agent Si669, 1.5 parts of anti-aging agent RD, 0.5 part of anti-aging agent MB, 1.5 parts of accelerator CBS, 0.5 part of accelerator TT, 0.5 part of vulcanization accelerator DM and 0.5 part of sulfur S according to parts by weight;
step 2, plasticizing the nitrile rubber by an open mill, and transferring the plasticized nitrile rubber into an internal mixer, wherein the temperature in the open mill is 60 ℃, the time is 2min, and the temperature in the internal mixer is 120 ℃ and the time is 1min; adding carbon black N330, spray carbon black, SA, zinc oxide ZnO, a silane coupling agent Si669, an anti-aging agent RD, an anti-aging agent MB, an accelerator CBS, an accelerator TT and a plasticizer DOS in sequence, kneading for 10min, discharging and cooling to obtain a first-pass rubber compound; the plasticizer DOS is a liquid auxiliary agent, the carbon black, the accelerator, the anti-aging agent and other auxiliary agents are solid powder auxiliary agents, and the principle of 'solid before liquid' is followed in the process of adding small materials;
step 3, carrying out remixing on the first mixed rubber on an open mill, carrying out thin ventilation for 8 times at 50 ℃, and forming a triangular bag for 8 times, wherein a vulcanization accelerator DM is added in the remixing process to obtain a capsule film;
and 4, carrying out back refining on the capsule film by an open mill, processing into adhesive tapes, placing the adhesive tapes into a feed inlet of an injection machine, injecting the adhesive tapes into the injection machine until the adhesive tapes are full of a die cavity by a nozzle, blowing air after pressure maintaining and vulcanizing, and demoulding to obtain the long-service-life energy accumulator capsule.
The accumulator capsules obtained in the above examples were tested for various properties and the results are shown in the following table:
from the above table, the accumulator capsule obtained by the invention has good flex cracking property, high fatigue life characteristic, good oil resistance, strength, elasticity and other mechanical properties.
Claims (5)
1. The long-life accumulator capsule is characterized by comprising the following components in parts by weight:
90-110 parts of nitrile rubber, 330-50 parts of carbon black N, 10-20 parts of spray carbon black, 20-30 parts of plasticizing agent DOS, 2-4 parts of zinc oxide ZnO, 1-2 parts of SA, 1-2 parts of silane coupling agent Si669, 1.4-2.6 parts of anti-aging agent, 1.4-2.6 parts of accelerator, 0.4-0.6 part of vulcanization accelerator DM and 0.4-0.6 part of sulfur S.
2. The long life accumulator capsule of claim 1 wherein said anti-aging agent comprises 1-2 parts anti-aging agent RD, 0.4-0.6 parts anti-aging agent MB.
3. The long life accumulator capsule of claim 1 wherein said accelerator comprises 1-2 parts of accelerator CBS and 0.4-0.6 parts of accelerator TT.
4. The long life accumulator capsule of claim 1 wherein said nitrile rubber is NBRDN401 nitrile rubber having an acrylonitrile content of 18%.
5. The method of preparing a long life accumulator capsule according to claim 1, comprising the steps of:
firstly plasticizing nitrile rubber by an open mill, transferring the nitrile rubber into an internal mixer, sequentially adding carbon black N330, spray carbon black, SA, zinc oxide ZnO, a silane coupling agent Si669, an anti-aging agent RD, an anti-aging agent MB, an accelerator CBS, an accelerator TT and a plasticizer DOS, kneading for 10min, discharging and cooling to obtain a first-pass rubber compound;
step 3, carrying out remilling on the first-time rubber compound on an open mill, and adding a vulcanization accelerator DM in the process of remilling to obtain a capsule film;
and 4, carrying out back refining on the capsule film by an open mill, processing into adhesive tapes, placing the adhesive tapes into a feed inlet of an injection machine, injecting the adhesive tapes into a mold cavity by a nozzle until the adhesive tapes are full of the mold cavity, blowing air after pressure maintaining and vulcanization, and demolding to obtain the long-service-life energy accumulator capsule.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310535117.9A CN116535751A (en) | 2023-05-12 | 2023-05-12 | Long-life accumulator capsule and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310535117.9A CN116535751A (en) | 2023-05-12 | 2023-05-12 | Long-life accumulator capsule and preparation method thereof |
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| CN116535751A true CN116535751A (en) | 2023-08-04 |
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| CN202310535117.9A Pending CN116535751A (en) | 2023-05-12 | 2023-05-12 | Long-life accumulator capsule and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040061713A (en) * | 2002-12-31 | 2004-07-07 | 주식회사 한솔테크 | Composition for preparation of rubber sheet used in preparing rubber bag for conservator of oil-filled transformer, rubber sheet prepared therefrom, method for preparation of the rubber sheet, rubber coated fabric comprising the rubber sheet, rubber bag prepared from the rubber coated fabric and its preparation |
| CN104177674A (en) * | 2014-07-31 | 2014-12-03 | 濮阳市恒信橡塑有限公司 | Oil-resistant air tank capsule and preparation method thereof |
| CN111333932A (en) * | 2020-03-04 | 2020-06-26 | 布柯玛蓄能器（天津）有限公司 | Hydrogenated butyronitrile capsule for accumulator |
-
2023
- 2023-05-12 CN CN202310535117.9A patent/CN116535751A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040061713A (en) * | 2002-12-31 | 2004-07-07 | 주식회사 한솔테크 | Composition for preparation of rubber sheet used in preparing rubber bag for conservator of oil-filled transformer, rubber sheet prepared therefrom, method for preparation of the rubber sheet, rubber coated fabric comprising the rubber sheet, rubber bag prepared from the rubber coated fabric and its preparation |
| CN104177674A (en) * | 2014-07-31 | 2014-12-03 | 濮阳市恒信橡塑有限公司 | Oil-resistant air tank capsule and preparation method thereof |
| CN111333932A (en) * | 2020-03-04 | 2020-06-26 | 布柯玛蓄能器（天津）有限公司 | Hydrogenated butyronitrile capsule for accumulator |
Non-Patent Citations (1)
| Title |
|---|
| 谢忠麟，等: "《橡胶制品使用配方大全》", vol. 1, 31 March 1999, 化学工业出版社, pages: 5 - 6 * |
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