CN110078986B - Preparation method of difunctional expandable elastomer material - Google Patents
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- CN110078986B CN110078986B CN201810077018.XA CN201810077018A CN110078986B CN 110078986 B CN110078986 B CN 110078986B CN 201810077018 A CN201810077018 A CN 201810077018A CN 110078986 B CN110078986 B CN 110078986B
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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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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
- C08L15/005—Hydrogenated nitrile rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a difunctional expansion elastomer material and a preparation method thereof, wherein the difunctional expansion elastomer material comprises the following components: hydrogenated nitrile rubber, an expansion component, a reinforcing filler, a curing agent, an accelerator, a dispersing agent, an anti-aging agent, zinc oxide and magnesium oxide. The preparation method comprises mixing the raw materials; mixing and putting into an extruder for extrusion; finally putting the mixture into a vulcanizing machine for vulcanization molding. According to the invention, a hydrophilic oleophilic group or a hydrophilic oleophilic component is introduced into a rubber matrix, and the rubber matrix can expand after absorbing oil and water and generate a larger expansion pressure; the production method has the advantages of less processing procedures, labor and raw materials saving and the like, and the product has stable quality, high yield and high work efficiency and is suitable for mass production.
Description
Technical Field
The invention relates to the field of novel functional polymer materials, in particular to a preparation method of a difunctional expanded elastomer material, which is particularly suitable for the technical field of thermal oil recovery of high-temperature and high-pressure deep wells and ultra-deep wells.
Background
The double-function expanding elastomer material is one new kind of functional polymer material, and is prepared through introducing hydrophilic group or component and lipophilic group or component into elastomer matrix, and after absorbing water and oil, the elastomer material may expand to several times or ten times its own weight or volume and produce great expansion pressure.
With the continuous deep promotion of modern industrialization process in China, the demand for oil is increasing day by day, and oil exploitation is more oriented to the midwest oil and gas fields and the offshore oil and gas fields, which also faces a more severe oil exploitation environment. Although the nitrile rubber has better oil resistance and physical and mechanical properties, the nitrile rubber has poor high temperature resistance of only 110 ℃ and 120 ℃, is easy to oxidize and has poor abrasion resistance, and sealing material products need to be replaced periodically. Therefore, the nitrile rubber does not meet the development of the traditional Chinese and western parts and offshore oil and gas fields, especially the proposal of the high-temperature high-pressure deep well and ultra-deep well thermal oil extraction technology, and a rubber sealing material with excellent high-temperature and high-pressure resistance and sealing property is needed to solve the bottleneck of the new oil extraction technology on the sealing material.
Hydrogenated nitrile rubber has been used to replace nitrile rubber in recent years abroad to overcome the defects that nitrile rubber is not high temperature resistant and is easy to oxidize. The hydrogenated nitrile rubber has good high temperature resistance, can be used in 150 ℃ oil medium, and has greatly improved oxidation resistance and physical and mechanical properties due to partial hydrogenation of double bonds in the structure. At present, the usage amount of hydrogenated nitrile rubber accounts for 20% of the usage amount of nitrile rubber, and the usage amount of hydrogenated nitrile rubber is continuously on the rising trend, and the hydrogenated nitrile rubber is considered to be one of the development directions of special rubber in the future.
But we also see that the existing expansion elastomers are all water-absorbing or oil-absorbing expansion, most of downhole liquid is oil-water mixture along with the development of oil field to the middle and later period, and the packer prepared by adopting the expansion elastomer material is required to be expanded and sealed when meeting the liquid.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a preparation method of a difunctional expansion elastomer material which can expand and seal when meeting liquid, has simple process and low preparation cost.
The purpose of the invention is realized by the following technical scheme:
a dual function expanding elastomeric material comprising: 20-30 parts by mass of hydrogenated nitrile rubber; 3-10 parts by mass of natural rubber and/or synthetic rubber; 30-35 parts by mass of an expansion component; 8-9 parts by mass of a reinforcing filler; 2-3 parts of a curing agent; 0.4 to 1.0 mass portion of an accelerator; 2-4 parts of a dispersing agent; 0.5-1.0 part by mass of an anti-aging agent; 1.0-2.5 parts by mass of zinc oxide; 0.5 to 1.0 mass part of magnesium oxide.
Further: 20-30 parts by mass of hydrogenated nitrile rubber; 3-10 parts by mass of natural rubber and/or synthetic rubber; 30.2 to 32.8 parts by mass of an expansion component; 8.1 to 8.4 parts by mass of a reinforcing filler; 2.4 to 3.0 mass portions of curing agent; 0.4 to 1.0 mass portion of an accelerator; 2.8 to 3.9 parts by mass of a dispersant; 0.8-1.0 part by mass of an anti-aging agent; 1.2-2.3 parts by mass of zinc oxide; 0.6 to 1.0 mass part of magnesium oxide.
The synthetic rubber comprises one or a mixture of more of styrene-butadiene rubber, polyisoprene, butyl rubber, polybutadiene rubber and acrylonitrile-butadiene copolymer; the expansion component comprises modified black carbon black, high-sodium bentonite, white carbon black and polyvinyl alcohol, starch grafted acrylamide-methyl methacrylate copolymer, maleic anhydride graft, hydrophilic polyurethane prepolymer and polyacrylic acid, or comprises one or a mixture of a plurality of polyacrylic acid, polyacrylate, polyacrylamide and acrylic acid modifier; the curing agent comprises a dihydroxypolyether; the reinforcing filler comprises one or more of black carbon black, white carbon black, argil, barium sulfate or calcium carbonate; the accelerator comprises one or more of an accelerator DEU, an accelerator NA-22, an accelerator DM and an accelerator; the dispersing agent comprises fatty alcohol-polyoxyethylene ether; the anti-aging agent comprises 2-mercaptobenzimidazole or N-isopropyl-p-phenylenediamine.
The polyacrylic acids are prepared by reacting water-soluble polyether of ethylene oxide or tetrahydrofuran with isocyanate.
The preparation method of the bifunctional swelling elastomer material comprises the following steps:
1) firstly, plasticating hydrogenated nitrile rubber to obtain a hydrogenated nitrile rubber dispersoid;
2) banburying the hydrogenated nitrile rubber dispersoid and all other raw materials according to a ratio;
3) banburying and then mixing;
4) mixing and then extruding for molding;
5) pre-vulcanizing the mixed molding product to obtain a semi-finished product;
6) and performing two-stage vulcanization on the semi-finished product to obtain a finished product.
In the preparation method, the prevulcanization time in the step 5) is 20-30 minutes, the prevulcanization temperature is 140-150 ℃, and the prevulcanization pressure is 10-20 Mpa.
The second-stage vulcanization time in the step 6) is 2-3 hours, the temperature of the second-stage vulcanization is 160-180 ℃, and the pressure of the second-stage vulcanization is 10-20 Mpa.
Mixing by using an open mill in the step 3); and 4) mixing, putting into an extruder, and extruding and molding.
The prepared difunctional expandable elastomer material is characterized in that a hydrophilic oleophilic group or a hydrophilic oleophilic component is introduced into a rubber matrix, and the difunctional expandable elastomer material can expand and generate larger expansion pressure after absorbing oil and water; the oil absorption and absorption material has good water absorption and oil absorption performance, strong chemical stability, high liquid absorption expansion rate, high strength, durability and reusability; the preparation method adopts a continuous extrusion vulcanization process, has the advantages of less processing procedures, labor and raw material saving and the like, has stable product quality, high yield and high work efficiency, and is suitable for mass production; the waterproof and moisture-proof sealed packaging film can be applied to engineering facilities such as tunnels, subways, culverts, buildings, underground engineering, land or offshore oil extraction and the like, is also an ideal waterproof and moisture-proof sealed package for automobiles, containers, precise instruments, medicines, foods and the like, and has wide application prospect.
Detailed Description
The invention is further illustrated by the following examples.
In comprehensive embodiment 1, a bifunctional expandable elastomer material comprises the following raw materials in percentage by mass: 20-30 parts by mass of hydrogenated nitrile rubber; one or two of Natural Rubber (NR) and synthetic rubber (3-10 parts by mass), wherein the synthetic rubber is one or more of styrene-butadiene rubber (SBR), polyisoprene (IR), butyl rubber (IIR), polybutadiene rubber (PBR) and acrylonitrile-butadiene copolymer (NBR); the swelling component (i.e., the functional component or the liquid-absorbing polymeric material) may be optionally present in one or more of the following materialsThe modified black carbon black concrete comprises 30-35 parts by mass of modified black carbon, high-sodium bentonite, white carbon black, polyvinyl alcohol, starch grafted acrylamide-methyl methacrylate copolymer (SMAAM), maleic anhydride graft (MA), hydrophilic polyurethane Prepolymer (PU), Polyacrylic Acid (PAC), Polyacrylate (PAAS), Polyacrylamide (PAM) and acrylic acid modifier (GPAC) which are prepared by reacting water-soluble polyether of ethylene oxide or tetrahydrofuran with isocyanate; the reinforcing filler comprises one or more of black carbon black, white carbon black, argil, barium sulfate or calcium carbonate, and 8-9 parts by mass; 2-3 parts by mass of a polyether diol is preferably selected as the curing agent; the accelerant comprises one or more of accelerant DEU, accelerant NA-22, accelerant DM and accelerant, and the mass portion is 0.4-1.0; the dispersant comprises sodium stearate (C)17H35COONa), sodium dodecylbenzenesulfonate (C)18H29NaO3S), sodium lauryl sulfate (C)12H25SO4Na) or fatty alcohol-polyoxyethylene ether 2-4 parts by mass; the anti-aging agent is selected from 2-mercaptobenzimidazole or N-isopropyl p-phenylenediamine, and comprises 0.5-1.0 part by mass of anti-aging agent 4010, anti-aging agent 4020 and anti-aging agent 4040 NA; 1.0-2.5 parts by mass of zinc oxide; 0.5 to 1.0 mass part of magnesium oxide.
Wherein the polyacrylic acid is prepared by reacting water-soluble polyether of ethylene oxide or tetrahydrofuran with isocyanate.
In comprehensive embodiment 2, the preparation method of the bifunctional temperature-resistant expandable elastomer material based on the raw materials and the mixture ratio comprises the following steps:
1) plasticating: firstly, plasticating hydrogenated nitrile rubber to obtain a hydrogenated nitrile rubber dispersoid;
2) banburying: banburying the raw materials according to the proportion;
3) mixing: mixing by an open mill;
4) extruding: mixing and putting into an extruder for extrusion;
5) pre-vulcanizing: pre-vulcanizing the rubber compound to obtain a semi-finished product, wherein the pre-vulcanization time is 20-30 minutes, the pre-vulcanization temperature is 140-150 ℃, and the pre-vulcanization pressure is 10-20 Mpa;
6) secondary vulcanization: and performing secondary vulcanization on the semi-finished product, wherein the secondary vulcanization time is 2-3 hours, the temperature of the secondary vulcanization is 160-180 ℃, and the pressure of the secondary vulcanization is 10-20 Mpa, so as to obtain the finished product.
In the preparation method, the plastication leads the hydrogenated nitrile rubber to be broken from a long-chain structure into a short-chain structure, the molecular weight is reduced, and the viscosity is reduced, thereby facilitating the subsequent mixing.
During mixing, the mixing temperature and the mixing ratio of the elastomer must be controlled to ensure that the elastomer prepolymer does not self-polymerize, and the hydrogenated nitrile rubber, various elastomer prepolymers and the compounding agent after mixing are macroscopically uniformly dispersed under the action of the surfactant.
The hydrogenated nitrile rubber and various elastomers are partially chemically crosslinked, and form respective networks which are mutually penetrated under the traction of the action of a dispersing agent to form a physical interpenetrating network system (IPN). The IPN is characterized in that the two networks have synergistic effect, namely the comprehensive performance of the IPN exceeds the respective performance superposition of each component, so that the IPN has high temperature resistance, ozonization resistance, wear resistance and excellent performance and can be ensured.
Specific examples are given below for further explanation.
The formula of typical examples 1-6 of the temperature resistant material of the bifunctional swelling elastomer is given in Table 1, and the unit is part by mass. Wherein the selection of the raw materials is made according to the above-mentioned general example 1.
With the formulation of example 4 as the starting material, plastication was first carried out: firstly, plasticating hydrogenated nitrile rubber to obtain a hydrogenated nitrile rubber dispersoid; sequentially adding the raw materials into an internal mixer, mixing for 10 minutes at 60 ℃, and taking out; mixing in an open mill, putting the mixed rubber material into an extruder, ensuring the rubber material to be sufficient in the cavity of the extruder and not to be short of the rubber material, adjusting the rotating speed of a screw and a side pressure roller, controlling the width and the thickness of the discharged rubber material, properly slowing down the extrusion speed if the width is too wide, properly accelerating the extrusion speed if the width is too narrow, setting the conveying speed of each section, controlling the conveying speed to be 5-5.5 m/min, and controlling the temperature of cooling water of each section to be below 60 ℃. Extruding: mixing and putting into an extruder for extrusion; then carrying out prevulcanization: pre-vulcanizing the rubber compound to obtain a semi-finished product, wherein the pre-vulcanization time is 20-30 minutes, the pre-vulcanization temperature is 140-150 ℃, and the pre-vulcanization pressure is 10-20 Mpa; then carrying out secondary vulcanization: and performing secondary vulcanization on the semi-finished product, wherein the secondary vulcanization time is 2-3 hours, the temperature of the secondary vulcanization is 160-180 ℃, and the pressure of the secondary vulcanization is 10-20 Mpa, so as to obtain the finished product.
The results of the physical property tests of the products prepared in examples 1 to 6 are shown in Table 2:
the data in Table 2 show that the temperature resistance of the bifunctional expanded elastomer completely meets the national technical indexes, meets the use requirements, and has excellent performance.
Claims (7)
1. A dual function expanding elastomeric material, comprising: 20-30 parts by mass of hydrogenated nitrile rubber; 3-10 parts by mass of natural rubber and/or synthetic rubber; 30-35 parts by mass of an expansion component; 8-9 parts by mass of a reinforcing filler; 2-3 parts of a curing agent; 0.4 to 1.0 mass portion of an accelerator; 2-4 parts of a dispersing agent; 0.5-1.0 part by mass of an anti-aging agent; 1.0-2.5 parts by mass of zinc oxide; 0.5 to 1.0 mass part of magnesium oxide;
the expansion component is starch grafted acrylamide-methyl methacrylate copolymer and one or a mixture of more of hydrophilic polyurethane prepolymer, polyacrylic acid, polyacrylate or polyacrylamide.
2. The bifunctional expanded elastomeric material of claim 1, wherein: 20-30 parts by mass of hydrogenated nitrile rubber; 3-10 parts by mass of natural rubber and/or synthetic rubber; 30.2 to 32.8 parts by mass of an expansion component; 8.1 to 8.4 parts by mass of a reinforcing filler; 2.4 to 3.0 mass portions of curing agent; 0.4 to 1.0 mass portion of an accelerator; 2.8 to 3.9 parts by mass of a dispersant; 0.8-1.0 part by mass of an anti-aging agent; 1.2-2.3 parts by mass of zinc oxide; 0.6 to 1.0 mass part of magnesium oxide.
3. The bifunctional expanded elastomeric material according to claim 1 or 2, wherein: the synthetic rubber comprises one or a mixture of more of styrene-butadiene rubber, polyisoprene rubber, butyl rubber, polybutadiene rubber and acrylonitrile-butadiene copolymer; the reinforcing filler comprises one or more of carbon black, white carbon black, argil, barium sulfate or calcium carbonate; the accelerator comprises one or more of an accelerator DEU, an accelerator NA-22 and an accelerator DM; the dispersing agent comprises fatty alcohol-polyoxyethylene ether; the anti-aging agent comprises 2-mercaptobenzimidazole.
4. A process for the preparation of a bifunctional expanded elastomeric material according to claim 3, characterized in that it comprises:
1) firstly, plasticating hydrogenated nitrile rubber to obtain a hydrogenated nitrile rubber dispersoid;
2) banburying the hydrogenated nitrile rubber dispersoid and all other raw materials according to a ratio;
3) banburying and then mixing;
4) mixing and then extruding for molding;
5) pre-vulcanizing the mixed molding product to obtain a semi-finished product;
6) and performing secondary vulcanization on the semi-finished product to obtain a finished product.
5. The process for the preparation of a bifunctional expanded elastomeric material according to claim 4, characterized in that: the prevulcanization time of the step 5) is 20 to 30 minutes, the prevulcanization temperature is 140 to 150 ℃, and the prevulcanization pressure is 10 to 20 MPa.
6. The process for the preparation of a bifunctional expanded elastomeric material according to claim 5, characterized in that: the second-stage vulcanization time in the step 6) is 2-3 hours, the temperature of the second-stage vulcanization is 160-180 ℃, and the pressure of the second-stage vulcanization is 10-20 MPa.
7. The process for the preparation of a bifunctional expanded elastomeric material according to claim 6, characterized in that: mixing by using an open mill in the step 3); and 4) mixing, putting into an extruder, and extruding and molding.
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| CN108948312B (en) * | 2018-08-06 | 2021-06-04 | 山东非金属材料研究所 | Styrene-acrylate oil-absorbing swelling elastomer |
| CN112080052B (en) * | 2020-09-27 | 2022-11-15 | 烟台橡研材料科技有限公司 | Air suction noise reduction rubber and preparation method thereof |
| CN112961490B (en) * | 2021-02-06 | 2022-05-03 | 青岛科凯达橡塑有限公司 | Rubber capable of expanding when meeting with oil in water and preparation method thereof |
| CN114591551B (en) * | 2022-04-14 | 2023-06-09 | 安徽永正密封件有限公司 | Anti-seepage rubber ring and floor drain with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001158836A (en) * | 1999-12-02 | 2001-06-12 | Bridgestone Corp | Rubber composition, oil-extended rubber and pneumatic tire |
| CN101698713A (en) * | 2009-10-30 | 2010-04-28 | 武汉地铁集团有限公司 | Hydrogen sulfide corrosion-resistant water-swellable rubber and preparation method thereof |
| CN102532634A (en) * | 2010-12-09 | 2012-07-04 | 江山圆正化工科技有限公司 | Preparation method of high-temperature-resisting oil-swelling sealing material |
| CN106317530A (en) * | 2015-06-16 | 2017-01-11 | 中国石油化工股份有限公司 | High-temperature-aging-resistant water-swellable rubber and preparation method thereof |
| CN107286398A (en) * | 2017-08-01 | 2017-10-24 | 合肥安力电力工程有限公司 | A kind of flame-retardant conductive rubber and preparation method thereof |
| EP2393899B1 (en) * | 2009-02-03 | 2017-12-27 | Halliburton Energy Services, Inc. | Methods and compositions comprising a dual oil/water-swellable particle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110160096A1 (en) * | 2008-12-31 | 2011-06-30 | Halliburton Energy Services, Inc. | Methods and Compositions Comprising a Dual Oil/Water-Swellable Particle |
-
2018
- 2018-01-26 CN CN201810077018.XA patent/CN110078986B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001158836A (en) * | 1999-12-02 | 2001-06-12 | Bridgestone Corp | Rubber composition, oil-extended rubber and pneumatic tire |
| EP2393899B1 (en) * | 2009-02-03 | 2017-12-27 | Halliburton Energy Services, Inc. | Methods and compositions comprising a dual oil/water-swellable particle |
| CN101698713A (en) * | 2009-10-30 | 2010-04-28 | 武汉地铁集团有限公司 | Hydrogen sulfide corrosion-resistant water-swellable rubber and preparation method thereof |
| CN102532634A (en) * | 2010-12-09 | 2012-07-04 | 江山圆正化工科技有限公司 | Preparation method of high-temperature-resisting oil-swelling sealing material |
| CN106317530A (en) * | 2015-06-16 | 2017-01-11 | 中国石油化工股份有限公司 | High-temperature-aging-resistant water-swellable rubber and preparation method thereof |
| CN107286398A (en) * | 2017-08-01 | 2017-10-24 | 合肥安力电力工程有限公司 | A kind of flame-retardant conductive rubber and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 双功能膨胀弹性体制备与性能评价;张磊;《山东化工》;20170208;第46卷(第3期);第3-6页 * |
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