CN101812191A - Method for preparing polyurethane/rubber interpenetrating network type water-swellable rubber - Google Patents
Method for preparing polyurethane/rubber interpenetrating network type water-swellable rubber Download PDFInfo
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- CN101812191A CN101812191A CN201010152469.9A CN201010152469A CN101812191A CN 101812191 A CN101812191 A CN 101812191A CN 201010152469 A CN201010152469 A CN 201010152469A CN 101812191 A CN101812191 A CN 101812191A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 71
- 239000005060 rubber Substances 0.000 title claims abstract description 71
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 17
- 239000004814 polyurethane Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000011787 zinc oxide Substances 0.000 claims abstract description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract 3
- 239000003795 chemical substances by application Substances 0.000 claims description 30
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 13
- -1 Polyoxyethylene Polymers 0.000 claims description 12
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 10
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 10
- 230000003712 anti-aging effect Effects 0.000 claims description 9
- 238000005728 strengthening Methods 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000004902 Softening Agent Substances 0.000 claims description 7
- 229920013649 Paracril Polymers 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 5
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 claims description 4
- 229940047670 sodium acrylate Drugs 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 2
- 229920002449 FKM Polymers 0.000 claims description 2
- 244000043261 Hevea brasiliensis Species 0.000 claims description 2
- VHOQXEIFYTTXJU-UHFFFAOYSA-N Isobutylene-isoprene copolymer Chemical group CC(C)=C.CC(=C)C=C VHOQXEIFYTTXJU-UHFFFAOYSA-N 0.000 claims description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- 229920003193 cis-1,4-polybutadiene polymer Polymers 0.000 claims description 2
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical group C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 claims description 2
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- YWWOEPOBDHZQEJ-UHFFFAOYSA-N s-(4-cyclohexyl-1,3-benzothiazol-2-yl)thiohydroxylamine Chemical compound C1=CC=C2SC(SN)=NC2=C1C1CCCCC1 YWWOEPOBDHZQEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- SONHXMAHPHADTF-UHFFFAOYSA-M sodium;2-methylprop-2-enoate Chemical compound [Na+].CC(=C)C([O-])=O SONHXMAHPHADTF-UHFFFAOYSA-M 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 2
- 150000003673 urethanes Chemical class 0.000 claims description 2
- 238000005987 sulfurization reaction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 239000003566 sealing material Substances 0.000 abstract description 3
- 239000002250 absorbent Substances 0.000 abstract description 2
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 239000003086 colorant Substances 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 239000012744 reinforcing agent Substances 0.000 abstract 1
- 238000004073 vulcanization Methods 0.000 abstract 1
- 239000013505 freshwater Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000005518 polymer electrolyte Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000015784 hyperosmotic salinity response Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 206010003694 Atrophy Diseases 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of sealing materials and relates to a method for preparing polyurethane/rubber interpenetrating network type water-swellable rubber. The method comprises the following steps: firstly, mixing rubber and super-absorbent resin for 10 to 40 minutes in an open mill; further adding solid softener, colorant, anti-ager and promoter to the open mill, and mixing for 10 to 40 minutes; then, adding zinc oxide, reinforcing agent and plasticizer to the open mill, and mixing for 10 to 50 minutes; further adding vulcanizer to the open mill, and mixing to obtain a mixture A; evenly mixing polyethylene glycol and MDI (methyl-di-p-phenylene isocyanate) by equal molar weight to obtain a mixture B; blending the mixture A and the mixture B in the open mill to obtain a product; and finally, vulcanizing the product in a mold on a plate vulcanization machine with the temperature and pressure being respectively controlled at 150 to 160 DEG C and at 10MPa to 15MPa, to obtain the interpenetrating network type water-swellable rubber. The method of the invention has the advantages of simple preparation process, high product expansion ratio, high ion resistance and controllable water absorption rate and mechanical properties.
Description
Technical field:
The invention belongs to the sealing material technical field, relate to and a kind ofly can be widely used in the urethane of occasions such as oil field, tunnel, subway, water conservancy and the preparation method of rubber polyurethane/rubber interpenetrating network type water-swellable rubber.
Background technology:
Hydro-expansive rubber is a kind of novel functional water-absorbing material, and it introduces the wetting ability functional group on the traditional elastic matrix or hydrophilic component is prepared from.Since coming out the seventies in 20th century,, be subject to people's attention day by day with the dual sealing characteristic of water sealing with its unique resilient seal sealing and water-swelling, its research and development also has very fast progress.These type materials can be widely used in fields such as tunnel, subway, swimming pool, vault, weapons storehouse, urban water supply facility, offshore oil production, underwater engineering, covil construction.Characteristics such as the resin type water swelling rubber has that absorption speed is fast, expansion multiplying power is high, water-retaining capacity is strong repeatedly.The polyacrylic resin has three big characteristics: the one, under height suction state, still have very high intensity; The 2nd, light and heat there is stability preferably; The 3rd, have good water-retentivity.Intermolecular at the cubic network of polymer electrolyte structure, there is movably ion pair, owing to show the removable ionic concentration of polymer electrolyte charge attraction power power, in the ionic concn of super absorbent resin inboard often than the height in the outside, promptly produce osmotic pressure, under the acting in conjunction of the avidity between osmotic pressure and water and the polymer electrolyte, produced the suction phenomenon.The resin type hydro-expansive rubber has excellent expansion character in fresh water, expansion multiplying power in salt solution obviously reduces, and along with the increase water-swelling multiplying power of salinity descends, hydro-expansive rubber expands hardly under the situation of high salinity, do not reach the ideal expansion effect, can't in the petroleum production engineering technology of oil field, be used widely.At present, hydro-expansive rubber all keeps expansion effect preferably in the water of 0～100,000 salinity, has become the new problem of making great efforts research and development in the petroleum production engineering.
Based on present research situation, the present invention takes polymer interpenetrating(polymer)networks synthetic technology, by introducing the insensitive high molecular weight hydrophilic material of salinity to resin type hydro-expansive rubber system, develop a kind of salt tolerant, heatproof, in mineralized water, keep the preparation method of the novel hydro-expansive rubber of high expansion multiplying power.
Summary of the invention:
The shortcoming that exists when the objective of the invention is to overcome the prior art for preparing hydro-expansive rubber, seek to provide a kind of preparation method who is used for the urethane and the rubber polyurethane/rubber interpenetrating network type water-swellable rubber of heat-resistant salt-resistant, expansion multiplying power height, good salt tolerance in the hydro-expansive rubber mechanical strength height of its preparation, the mineralized water, uniform characteristics expand in fresh water and in the salt solution.
To achieve these goals, the urethane of the present invention's preparation and the composition of rubber polyurethane/rubber interpenetrating network type water-swellable rubber comprise rubber, High hydrophilous resin, solid softener, tinting material, anti-aging agent, promotor, zinc oxide, strengthening agent, softening agent, vulcanizing agent, polyoxyethylene glycol (PEG) and 4,4-vulcabond ditan (MDI), above-mentioned each composition mixed be prepared from, it is 100 parts that the mass fraction ratio of its each composition is respectively rubber, High hydrophilous resin is 30-100 part, solid softener is 0.5-2.5 part, tinting material 0.5-3.5 part, anti-aging agent is 1-7 part, promotor is 1-7 part, zinc oxide is 1-8 part, and strengthening agent is 5-45 part, and softening agent is 5-20 part, vulcanizing agent is that 0.1-2.6 part and PEG+MDI are 5-45 part, and the two the mol ratio preparation such as presses PEG and MDI and mix.
The method and the step that prepare urethane and rubber polyurethane/rubber interpenetrating network type water-swellable rubber that the present invention relates to are: earlier with rubber and High hydrophilous resin in mill mixing 10-40 minute; Add solid softener, tinting material, anti-aging agent and promotor again in mill mixing 10-40 minute; Add zinc oxide, strengthening agent and softening agent then in mill mixing 10-50 minute; Add again and in mill, carry out behind the vulcanizing agent mixingly, make mixture A; Polyoxyethylene glycol and MDI are mixed in proportion, obtain mixture B; Mixture A and B are got product after blend in the mill; At last product is put into mould, temperature control and pressure are respectively 150-160 ℃ on vulcanizing press, and 10-15MPa pressure vulcanized 20-60 minute down, obtained polyurethane/rubber interpenetrating network type water-swellable rubber; Wherein, polyoxyethylene glycol and MDI react the generation polyurethane macromolecular, and the resin type hydro-expansive rubber has been carried out the interpenetrating(polymer)networks improvement, and this base polyurethane prepolymer for use as is because hydrogen bond action suction, improve the salt tolerance of material; Selected rubber comprises natural rubber, chloroprene rubber, paracril, urethanes, styrene-butadiene rubber(SBR), cis-1,4-polybutadiene rubber, silicon rubber, viton or isoprene-isobutylene rubber; Water-absorbing resin is sodium acrylate, sodium methacrylate and grafting modified of starch sodium acrylate etc., and its powder granularity is more little easy more even with rubber mix, and is difficult for separating out in immersion process; Solid softener is stearic acid, rosin and fluorosilicon oil etc.; Vulcanizing agent is sulphur, PDM, DCP and DTDM etc., control vulcanizing agent consumption, and the high material mechanical performance height of vulcanizing agent consumption, but the water-swelling multiplying power is low, and the vulcanizing agent consumption is low, and material mechanical performance is on the low side, and water-swelling property is good; Strengthening agent is white carbon black or carbon black; Tenderizer is a stearic acid; Promotor is dibenzothiazyl disulfide or cyclohexyl benzo thiazolesulfenamide; Anti-aging agent is a methyl dihyaroquinoline polymer; The molecular weight of polyoxyethylene glycol is 2000,4000,6000 or higher, and the molecular weight of polyoxyethylene glycol is high more, and absorption speed is fast more, and add-on is many more, and absorption speed is fast more, and expansion multiplying power increases.
Polymer polyurethane/rubber interpenetrating network type water-swellable rubber of the present invention is that component, the structure to traditional rubber addition type water-swellable sealing material is optimized, in rubber stock, introduce suitable polar additive component, make the good bonding action of generation between polar compound and High hydrophilous resin and the rubber molecular chain, improve the bonding force of resin and rubber substrate, improve their consistencies when mixing; In the rubber macromolecule matrix, introduce water-expandable polyurethane elastomerics macromole, the non-ionic hydrophilic group component of introducing in the rubber stock is owing to hydrogen bond action absorbs moisture, greatly reduce the susceptibility of expanded rubber, improve the water-swelling multiplying power of hydro-expansive rubber in mineralized water salinity; The polymer that the polyurethane macromolecular that generates in the rubber stock and paracril form passes network structure mutually, make that expanded rubber reaches the suction balance in water after, hydroaropic substance dissolves less in water, the no longer atrophy of rubber volume after the expansion.
The present invention compared with prior art has the following advantages: the one, and expansion multiplying power height in the fresh water expands evenly, and expansion multiplying power can reach 800～400%; The 2nd, anti-ionic strong, in the water of salinity 10,000, expansion multiplying power 300% to 800%, in the water of salinity 100,000, expansion multiplying power 150% to 400%; The 3rd, rate of water absorption is controlled, by changing the consumption suction kinetic rate of polyoxyethylene glycol and MDI mixture; The 4th, mechanical property is controlled, and the raising of the consumption of white carbon black can improve the mechanical property and the water-swelling property of material.
Embodiment:
The invention will be further described below in conjunction with embodiment.
Embodiment 1-3:
Present embodiment takes by weighing the raw material of being shown by record share in the table 1, earlier paracril being put into mill by described processing step plasticates, then with High hydrophilous resin, tenderizer, tinting material, anti-aging agent, promotor, zinc oxide, strengthening agent, softening agent, vulcanizing agent, polyoxyethylene glycol and MDI mixture, add successively and carry out mixingly in the mill,, put into die for molding then until mixing; The rubber of moulding is vulcanized in vulcanizing press, the curing temperature 150-160 of embodiment 1-3 ℃, curing time 20-60 minute, sulfide stress 10-15MPa.
The proportioning of table 1 embodiment 1～embodiment 3 each raw material and and water-swellable behavior
| The starting material title | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Paracril | ??100 | ??100 | ??100 |
| High hydrophilous resin | ??40 | ??70 | ??90 |
| Tenderizer | ??0.5 | ??1 | ??2 |
| Tinting material | ??1 | ??2 | ??3 |
| Anti-aging agent | ??2 | ??4 | ??6 |
| Promotor | ??3 | ??5 | ??7 |
| Zinc oxide | ??3 | ??5 | ??8 |
| Strengthening agent | ??15 | ??30 | ??45 |
| Softening agent | ??5 | ??10 | ??20 |
| Vulcanizing agent | ??0.5 | ??1.5 | ??2.5 |
| ??PEG+MDI | ??5 | ??20 | ??45 |
| Expansion multiplying power in the fresh water (%) | ??650 | ??980 | ??1200 |
| Expansion multiplying power (%) in salinity 10,000 water | ??300 | ??400 | ??650 |
Present embodiment preparing product hardness is according to the pocket sclerometer measurement of test method of GB/T531-1999 rubber; Tensile strength, tensile yield are according to the test of GB/T528-1998 vulcanized rubber or thermoplastic elastomer tensile stress-strain performance; Water-swelling multiplying power Δ V=W
2/ W
1, W
2, W
1Be respectively test piece suction when reaching balance quality and the quality before the suction.
The hydro-expansive rubber of table 2 the present invention preparation and the performance comparison of domestic and international hydro-expansive rubber
| Project testing | Standard GB/T18173.3-2002 | Domestic | The present embodiment product | Abroad |
| Expansion multiplying power in the fresh water (%) | ??≥150 | ??150-200 | ??800-1400 | ??220 |
| Expansion multiplying power (%) in salinity 10,000 water | Do not appear in the newspapers | Do not appear in the newspapers | ??300-800 | Do not appear in the newspapers |
| Tensile strength (MPa) | ??≥3.5 | ??3.5-5.5 | ??3.5-8 | ??8.0 |
| Tensile yield (%) | ??≥450 | ??500-700 | ??600-900 | ??620 |
| Project testing | Standard GB/T18173.3-2002 | Domestic | The present embodiment product | Abroad |
| Hardness (Shao A) | ??42≥±7 | ??50 | ??65 | ??45 |
Claims (2)
1. the preparation method of a polyurethane/rubber interpenetrating network type water-swellable rubber is characterized in that earlier rubber and High hydrophilous resin in mill mixing 10-40 minute; Add solid softener, tinting material, anti-aging agent and promotor again in mill mixing 10-40 minute; Add zinc oxide, strengthening agent and softening agent then in mill mixing 10-50 minute; Add again and in mill, carry out behind the vulcanizing agent mixingly, make mixture A; Polyoxyethylene glycol and MDI are mixed by equimolar amount, obtain mixture B; Mixture A and B are got product after blend in the mill; At last product is put into mould, be respectively under 150-160 ℃ and the 10-15MPa condition sulfuration 20-60 minute, obtain polyurethane/rubber interpenetrating network type water-swellable rubber at controlled temperature on the vulcanizing press and pressure; Wherein, polyoxyethylene glycol and MDI react the generation polyurethane macromolecular, the resin type hydro-expansive rubber is carried out interpenetrating(polymer)networks improve; Selected rubber comprises natural rubber, chloroprene rubber, paracril, urethanes, styrene-butadiene rubber(SBR), cis-1,4-polybutadiene rubber, silicon rubber, viton or isoprene-isobutylene rubber; Water-absorbing resin is sodium acrylate, sodium methacrylate and grafting modified of starch sodium acrylate; Solid softener is stearic acid, rosin and fluorosilicon oil; Vulcanizing agent is sulphur, PDM, DCP and DTDM, and strengthening agent is white carbon black or carbon black; Promotor is dibenzothiazyl disulfide or cyclohexyl benzo thiazolesulfenamide; Anti-aging agent is a methyl dihyaroquinoline polymer; The molecular weight of polyoxyethylene glycol is 2000,4000,6000.
2. the preparation method of polyurethane/rubber interpenetrating network type water-swellable rubber according to claim 1, the mass fraction that it is characterized in that the composition of the urethane for preparing and rubber polyurethane/rubber interpenetrating network type water-swellable rubber is respectively 100 parts of rubber, High hydrophilous resin 30-100 part, solid softener 0.5-2.5 part, tinting material 0.5-3.5 part, anti-aging agent 1-7 part, promotor 1-7 part, zinc oxide 1-8 part, strengthening agent 5-45 part, softening agent 5-20 part, vulcanizing agent 0.1-2.6 part and PEG+MDI are 5-45 part, the two the mol ratio preparation such as presses PEG and MDI and mixes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010152469.9A CN101812191A (en) | 2010-04-16 | 2010-04-16 | Method for preparing polyurethane/rubber interpenetrating network type water-swellable rubber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010152469.9A CN101812191A (en) | 2010-04-16 | 2010-04-16 | Method for preparing polyurethane/rubber interpenetrating network type water-swellable rubber |
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| CN102206364A (en) * | 2011-01-27 | 2011-10-05 | 江阴海达橡塑股份有限公司 | Method for preparing water-swellable rubber |
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| CN102250394A (en) * | 2011-06-10 | 2011-11-23 | 杭州中策橡胶有限公司 | Tire stock of IPN (Interpenetrating Polymer Network) crosslinked structure and mixing method as well as application thereof |
| CN102250392A (en) * | 2011-06-10 | 2011-11-23 | 杭州中策橡胶有限公司 | Tire body rubber material with interpenetrating polymer network (IPN) crosslinked structure and mixing method and use 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 |
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| CN104231494A (en) * | 2014-07-30 | 2014-12-24 | 苏州通力电气有限公司 | Auxiliary sealing component material for mechanical seal |
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| CN105061834A (en) * | 2015-08-05 | 2015-11-18 | 苏州赛斯德工程设备有限公司 | Preparation method of water-swelling rubber |
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