CN102585484B - Rubber material for prestressing jack sealing ring and preparation method for rubber material - Google Patents
Rubber material for prestressing jack sealing ring and preparation method for rubber material Download PDFInfo
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- CN102585484B CN102585484B CN 201110457420 CN201110457420A CN102585484B CN 102585484 B CN102585484 B CN 102585484B CN 201110457420 CN201110457420 CN 201110457420 CN 201110457420 A CN201110457420 A CN 201110457420A CN 102585484 B CN102585484 B CN 102585484B
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Abstract
The invention discloses a rubber material for a prestressing jack sealing ring. The rubber material is formed by mixing a rubber material A and a rubber material B in an equal ratio, wherein the rubber material A consists of the following raw materials in part by weight: 95 to 105 parts of polyurethane rubber, 7 to 9 parts of silicone rubber, 4 to 6 parts of fluororubber, 3 to 4 parts of ethylene propylene rubber, 0.7 to 0.9 part of natural rubber, 0.3 to 0.5 part of sulfur, 0.4 to 0.6 part of zinc oxide, 0.3 to 0.5 part of stearic acid, 1 to 2 parts of antioxidant 4010NA, 3 to 4 parts of paraffin, 62 to 65 parts of highly wear-resistant carbon black N330, 18 to 22 parts of dioctyl phthalate (DOP), 25 to 35 parts of aluminum hydroxide and 1 to 2 parts of accelerator PZ; and the rubber material B consists of the following raw materials in part by weight: 82 to 87 parts of unary homopolymer of chlorohydrin rubber, 12 to 18 parts of copolymer of chlorohydrin rubber, 1 to 2 parts of zinc stearate, 1 to 3 parts of antioxidant RD, 0.4 to 0.6 part of gum-easy T-78, 1 to 2 parts of rhein wax, 45 to 55 parts of carbon black, 10 to 14 parts of barium sulfate, 5 to 8 parts of DOP, 4 to 6 parts of lead trioxide, 0.4 to 0.6 part of sulfur and 1 to 2 parts of accelerator Na-22. The sealing ring prepared from the rubber material has high oil resistance, heat resistance, air tightness, flame retardance and tear resistance and is low in material cost.
Description
Technical field
The present invention relates to the rubber size manufacture field, be specifically related to prestress screw block rubber sealing ring sizing material and preparation method thereof.
Background technology
Sealing-ring is easily worn part in the prestress screw block, and sealing-ring is a rubber item, and therefore the prescription to elastomeric material will have special requirement, requires its prepared product to have oil resistant, resistance toheat height, has very high resistance to air loss simultaneously.Common 41# butadiene-acrylonitrile rubber prescription oil resistant, heat-resisting, resistance to air loss all are not so good as hydrogenated butyronitrile glue and chloropharin glue, but hydrogenated butyronitrile glue and chloropharin glue cost an arm and a leg the cost height; Therefore research and the practice to the saving of the raising of the oil resistant of sealing-ring, heat-resisting, resistance to air loss performance, material cost has realistic meaning very much.
Summary of the invention
The invention provides a kind of prestress screw block rubber sealing ring sizing material and preparation method thereof, the prestress screw block sealing-ring that rubber size of the present invention is produced, have good oil resistant, resistance toheat, good, fire-retardant, the tear-resistant performance excellence of resistance to air loss, cost is low simultaneously.
The present invention adopts following technical scheme to achieve these goals:
A kind of prestress screw block rubber sealing ring sizing material is characterized in that, it is by A, mixing the forming of B two portions rubber size equal proportion, and the weight part of its two portions constitutive material is:
The A sizing material:
Urethanes 95-105, silicon rubber 7-9, viton 4-6, ethylene-propylene rubber(EPR) 3-4, natural rubber 0.7-0.9, sulphur 0.3-0.5, zinc oxide 0.4-0.6, stearic acid 0.3-0.5, antioxidant 4010NA 1-2, paraffin 3-4, high wear-resistant carbon black N33062-65, dioctyl phthalate (DOP) DBP18-22, aluminium hydroxide 25-35, promotor PZ 1-2
The B sizing material:
Monobasic homopolymerization chlorohydrin rubber 82-87, copolymerization chloropharin glue 12-18, Zinic stearas 1-2, anti-aging agent RD 1-3, the easy plain T-780.4-0.6 of glue, Lay mattress wax 1-2, carbon black 45-55, barium sulfate 10-14, dioctyl phthalate (DOP) 5-8, three plumbous oxide 4-6, sulphur 0.4-0.6, accelerant N a-221-2.
Described prestress screw block rubber sealing ring sizing material is characterized in that, it is by A, mixing the forming of B two portions rubber size equal proportion, and the weight part of its two portions constitutive material is:
The A sizing material:
Urethanes 100, silicon rubber 8, viton 5, ethylene-propylene rubber(EPR) 3.5, natural rubber 0.8, sulphur 0.4, zinc oxide 0.5, stearic acid 0.4, anti-aging agent RD 0.3, antioxidant 4010NA 1, paraffin 3, high wear-resistant carbon black N33063, dioctyl phthalate (DOP) DBP 20, aluminium hydroxide 30, promotor PZ1-2
The B sizing material:
Monobasic homopolymerization chlorohydrin rubber 85, copolymerization chloropharin glue 15, Zinic stearas 1, anti-aging agent RD 2, the easy plain T-780.5 of glue, Lay mattress wax 1, carbon black 48, barium sulfate 12, dioctyl phthalate (DOP) 7, three plumbous oxide 4, sulphur 0.4, accelerant N a-222.
The preparation method of described prestress screw block rubber sealing ring sizing material may further comprise the steps:
The first step: prepare A sizing material, B sizing material respectively
One, the preparation of A sizing material
(1) plasticates: start Banbury mixer,, drop in the Banbury mixer and plasticate urethanes, silicon rubber, viton, ethylene-propylene rubber(EPR), natural rubber, after plasticating 15-25 minute, when temperature reaches 110-133 ℃, begin discharge, park cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add zinc oxide, stearic acid, anti-aging agent class, paraffin again, after mixing 3-4 minute, after adding aluminium hydroxide continues mixing 2-3 minute, again the carbon black class is added at twice wherein mixing, added 2/3 carbon black mixing 2-3 minute earlier, add residue 1/3 carbon black again, turned refining 2-3 minute, after adding the abundant mixing 3-4 of dioctyl phthalate (DOP) DBP minute again, when temperature reached 85-90 ℃, the beginning discharge was parked cooling 23-25 hour behind the discharge;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in the mill, the promotor class is added in the rubber unvulcanizate again, thin-pass 5-7 be all over can obtaining the A sizing material, the processing temperature of mill≤60 ℃;
Two, the preparation of B sizing material
(1) plasticate: start Banbury mixer, will monobasic homopolymerization chlorohydrin rubber and copolymerization chloropharin glue drop in the Banbury mixer and plasticate, after plasticating 15-25 minute, when temperature reaches 110-120 ℃, the beginning discharge is parked cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add three plumbous oxide, Zinic stearas, anti-aging agent class, the easy plain T-78 of glue, Lay mattress wax again, after mixing 3-4 minute, after adding barium sulfate continues mixing 2-3 minute, again the carbon black class is added at twice wherein mixing, added 2/3 carbon black mixing 2-3 minute earlier, add residue 1/3 carbon black again, turned refining 2-3 minute, after adding the abundant mixing 3-4 of dioctyl phthalate (DOP) DBP minute again, when temperature reached 85-90 ℃, the beginning discharge was parked cooling 23-25 hour behind the discharge;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in the mill, vulcanizing agent class, promotor class are added in the rubber unvulcanizate again, thin-pass 5-7 be all over can obtaining the B sizing material, the processing temperature of mill≤60 ℃.
Second step: A sizing material and B sizing material mixing
After the above-mentioned A sizing material that makes and B sizing material equal proportion mixed, join in the mill, carry out mixingly once more, thin-pass 6-8 time, can make rubber size of the present invention.
Beneficial effect of the present invention:
Rubber size of the present invention has good comprehensive performances, the prestress screw block sealing-ring of producing with rubber size of the present invention has good wear-resisting, oil resistant, anti-weather-aging property, and elasticity is suitable, and shock-absorbing performance is good, duration of service is long, and the cost of material is low simultaneously.
Embodiment
Used part among the embodiment is weight part.
Embodiment one:
1, starting material are prepared:
The raw-material preparation of A sizing material:
Take by weighing urethanes 100, silicon rubber 8, viton 5, ethylene-propylene rubber(EPR) 3.5, natural rubber 0.8, sulphur 0.4, zinc oxide 0.5, stearic acid 0.4, anti-aging agent RD 0.3, antioxidant 4010NA 1, paraffin 3, high wear-resistant carbon black N33063, dioctyl phthalate (DOP) DBP 20, aluminium hydroxide 30, promotor PZ1-2
The raw-material preparation of B sizing material:
Take by weighing monobasic homopolymerization chlorohydrin rubber 85, copolymerization chloropharin glue 15, Zinic stearas 1, anti-aging agent RD 2, the easy plain T-780.5 of glue, Lay mattress wax 1, carbon black 48, barium sulfate 12, dioctyl phthalate (DOP) 7, three plumbous oxide 4, sulphur 0.4, accelerant N a-222.
2, the preparation method of prestress screw block rubber sealing ring sizing material may further comprise the steps:
The first step: prepare A sizing material, B sizing material respectively
One, the preparation of A sizing material
(1) plasticates: start Banbury mixer,, drop in the Banbury mixer and plasticate urethanes, silicon rubber, viton, ethylene-propylene rubber(EPR), natural rubber, after plasticating 15-25 minute, when temperature reaches 110-133 ℃, begin discharge, park cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add zinc oxide, stearic acid, anti-aging agent class, paraffin again, after mixing 3-4 minute, after adding aluminium hydroxide continues mixing 2-3 minute, again the carbon black class is added at twice wherein mixing, added 2/3 carbon black mixing 2-3 minute earlier, add residue 1/3 carbon black again, turned refining 2-3 minute, after adding the abundant mixing 3-4 of dioctyl phthalate (DOP) DBP minute again, when temperature reached 85-90 ℃, the beginning discharge was parked cooling 23-25 hour behind the discharge;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in the mill, the promotor class is added in the rubber unvulcanizate again, thin-pass 5-7 be all over can obtaining the A sizing material, the processing temperature of mill≤60 ℃;
Two, the preparation of B sizing material
(1) plasticate: start Banbury mixer, will monobasic homopolymerization chlorohydrin rubber and copolymerization chloropharin glue drop in the Banbury mixer and plasticate, after plasticating 15-25 minute, when temperature reaches 110-120 ℃, the beginning discharge is parked cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add three plumbous oxide, Zinic stearas, anti-aging agent class, the easy plain T-78 of glue, Lay mattress wax again, after mixing 3-4 minute, after adding barium sulfate continues mixing 2-3 minute, again the carbon black class is added at twice wherein mixing, added 2/3 carbon black mixing 2-3 minute earlier, add residue 1/3 carbon black again, turned refining 2-3 minute, after adding the abundant mixing 3-4 of dioctyl phthalate (DOP) DBP minute again, when temperature reached 85-90 ℃, the beginning discharge was parked cooling 23-25 hour behind the discharge;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in the mill, vulcanizing agent class, promotor class are added in the rubber unvulcanizate again, thin-pass 5-7 be all over can obtaining the B sizing material, the processing temperature of mill≤60 ℃.
Second step: A sizing material and B sizing material mixing
After the above-mentioned A sizing material that makes and B sizing material equal proportion mixed, join in the mill, carry out mixingly once more, thin-pass 6-8 time, can make rubber size of the present invention.
Testing data
Rubber sealing ring sizing material of the present invention is carried out performance test, and compare, result such as following table 1 in conventional seals circle rubber size.
Oil resistance detects according to ASTM D 471 standards, and unit is %;
Resistance toheat detects according to GB GB-T 3512-2001;
Resistance to air loss detects according to GB GB7755-87, and unit is m2/s.Pa;
Tear-resistant performance detects according to GB GB/T529-1999, and unit is KN/m.
The physicals of elastomeric material of the present invention and conventional oil resisting rubber material detects and is compared as follows table:
Table 1
The oil-proofness of rubber sealing ring sizing material of the present invention as can be seen from Table 1, resistance toheat, resistance to air loss and resistance to tearing are all than conventional caulking gum material excellence.
Claims (1)
1. prestress screw block rubber sealing ring sizing material is characterized in that, it is by A, mixing the forming of B two portions rubber size equal proportion, and the weight part of its two portions constitutive material is:
The A sizing material:
Urethanes 95-105, silicon rubber 7-9, viton 4-6, ethylene-propylene rubber(EPR) 3-4, natural rubber 0.7-0.9, sulphur 0.3-0.5, zinc oxide 0.4-0.6, stearic acid 0.3-0.5, antioxidant 4010NA 1-2, paraffin 3-4, high wear-resistant carbon black N330 62-65, dioctyl phthalate (DOP) 18-22, aluminium hydroxide 25-35, promotor PZ 1-2
The B sizing material:
Monobasic homopolymerization chlorohydrin rubber 82-87, copolymerization chloropharin glue 12-18, Zinic stearas 1-2, anti-aging agent RD 1-3, the easy plain T-78 0.4-0.6 of glue, Lay mattress wax 1-2, carbon black 45-55, barium sulfate 10-14, dioctyl phthalate (DOP) 5-8, three plumbous oxide 4-6, sulphur 0.4-0.6, accelerant N a-22 1-2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110457420 CN102585484B (en) | 2011-12-30 | 2011-12-30 | Rubber material for prestressing jack sealing ring and preparation method for rubber material |
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| CN 201110457420 CN102585484B (en) | 2011-12-30 | 2011-12-30 | Rubber material for prestressing jack sealing ring and preparation method for rubber material |
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| CN102585484A CN102585484A (en) | 2012-07-18 |
| CN102585484B true CN102585484B (en) | 2013-07-31 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103613885B (en) * | 2013-10-28 | 2016-05-25 | 安徽东方金河精密机械制造有限公司 | A kind of mixing of rubber capacitor special sealing ring and preparation method thereof |
| CN103613891B (en) * | 2013-10-28 | 2016-05-25 | 安徽东方金河精密机械制造有限公司 | A kind of capacitor special (purpose) rubber sealing ring and preparation method thereof |
| CN103627041A (en) * | 2013-11-06 | 2014-03-12 | 安徽江威精密制造有限公司 | Oil-resistant multi-rubber compounded rubber capacitor sealing gasket and preparation method thereof |
| CN103665488A (en) * | 2013-11-18 | 2014-03-26 | 蚌埠市时代电子有限公司 | Sealing gasket material prepared by mixing natural butadiene styrene rubber and preparation method of sealing gasket material |
| CN103665820B (en) * | 2013-11-27 | 2016-03-16 | 东营中一橡胶有限公司 | Oil resisting rubber |
| CN103694502A (en) * | 2013-11-29 | 2014-04-02 | 马鞍山市中澜橡塑制品有限公司 | Sealing gasket material formed by compounding natural rubber and butadiene rubber and preparation method of sealing gasket material |
| CN104072972A (en) * | 2014-06-12 | 2014-10-01 | 安徽安尔达机电有限公司 | High-strength heat-resistant seal rubber material for water pump, |
| CN104119669A (en) * | 2014-07-11 | 2014-10-29 | 安徽通润汽车零部件有限公司 | A sealing ring used for a hydraulic support jack piston |
| CN105802029A (en) * | 2016-04-26 | 2016-07-27 | 苏宁 | Sun-protection and anti-ageing rubber cable material |
| CN106167560A (en) * | 2016-08-31 | 2016-11-30 | 安徽美祥实业有限公司 | A kind of automobile oil-resistant seal ring and preparation method thereof |
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| US6753374B1 (en) * | 2000-06-08 | 2004-06-22 | Uniroyal Chemical Company, Inc. | Rubber compositions and method for increasing the Mooney Scorch value |
| CN1715320A (en) * | 2005-07-11 | 2006-01-04 | 张伟 | Composition for producing elastic member |
| CN100487033C (en) * | 2005-09-29 | 2009-05-13 | 株洲时代新材料科技股份有限公司 | Chloroprene rubber polymer blend and its preparing method |
| DE102007035192A1 (en) * | 2007-07-25 | 2009-01-29 | Continental Aktiengesellschaft | Tire sealant |
| CN101580606B (en) * | 2009-06-08 | 2011-08-31 | 无锡市华美电缆有限公司 | Cable jacket rubber and preparation method |
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