CN102585315B - Oil-resisting heat-resisting seal piece size and preparation method thereof - Google Patents
Oil-resisting heat-resisting seal piece size and preparation method thereof Download PDFInfo
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- CN102585315B CN102585315B CN 201210013374 CN201210013374A CN102585315B CN 102585315 B CN102585315 B CN 102585315B CN 201210013374 CN201210013374 CN 201210013374 CN 201210013374 A CN201210013374 A CN 201210013374A CN 102585315 B CN102585315 B CN 102585315B
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Abstract
The invention discloses an oil-resisting heat-resisting seal piece size and a preparation method thereof. The oil-resisting heat-resisting seal piece size comprises the following raw material components in parts by weight: 75-85 of NBR (nitrile-butadiene rubber) 3606, 75-85 of NBR 2707, 0.7-0.9 of sulphur, 3-4 of magnesium oxide, 7-9 of zinc oxide, 1-2 of zinc stearate, 2-4 of antiager RD, 1-2 of antiager MB, 1.5-1.7 of microcrystal wax, 1.7-1.9 of rubber processing agent WB, 95-105 of carbon black N550, 48-52 of carbon black N330, 55-65 of dioctyl ester, 2.3-2.5 of accelerating agent DM, 1.5-1.7 of accelerating agent TMTD (tetramethyl thiuram disulfide) and 1.5-1.7 of accelerating agent TETD (tetraethylthiuram disulfide). The rubber size formula disclosed by the invention is rapid in vulcanizing speed; the obtained size is good in other comprehensive performances; and an oil-resisting seal piece produced by using the size is good in oil resistance and heat resistance and good in gas tightness, and simultaneously, production cost is reduced, and production efficiency is improved.
Description
Technical field
The present invention relates to the rubber composite manufacture field, be specifically related to a kind of oil-resisting heat-resisting seal piece size and preparation method thereof.
Background technology
Oil-resistant sealing element has special requirement to the formula of elastomeric material, requires that its prepared product has oil resistant, anti-weather resistance is high, has simultaneously very high resistance to air loss.Common 41 butadiene-acrylonitrile rubbers formulas oil resistants, 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 are expensive, add the man-hour curing time long, production efficiency is low, cost is high, how to increase vulcanization rate, enhances productivity, do not reduce simultaneously other over-all properties of elastomeric material, for rubber production, investigator provide new research direction.
Summary of the invention
The invention provides a kind of oil-resisting heat-resisting seal piece size and preparation method thereof, rubber size formula of the present invention has vulcanization rate fast, and other over-all properties of gained sizing material is good.The oil-resistant sealing element of producing with this sizing material has good oil resistant, resistance toheat, and resistance to air loss is good, and production efficiency is high simultaneously, and the cost of material is low.
The present invention adopts following technical scheme to achieve these goals:
A kind of oil-resisting heat-resisting seal piece size is characterized in that, the weight part of its constitutive material is:
Fourth NBR3606 75-85, NBR2707 75-85, sulphur 0.7-0.9, magnesium oxide 3-4, zinc oxide 7-9, Zinic stearas 1-2, anti-aging agent RD 2-4, antioxidant MB 1-2, Microcrystalline Wax 1.5-1.7, rubber processing aids WB212 1.7-1.9, carbon black N550 95-105, carbon black N330 48-52, dioctyl ester 55-65, altax 2.3-2.5, Vulcanization accelerator TMTD 1.5-1.7, acceterator TE TD 1.5-1.7.
Described oil-resisting heat-resisting seal piece size, it is characterized in that, the weight part of its constitutive material is: fourth NBR3606 80, NBR2707 80, sulphur 0.8, magnesium oxide 3.5, zinc oxide 8, Zinic stearas 1.5, anti-aging agent RD 3, antioxidant MB 1.5, Microcrystalline Wax 1.6, rubber processing aids WB212 1.8, carbon black N550 100, carbon black N330 50, dioctyl ester 60, altax 2.4, Vulcanization accelerator TMTD 1.6, acceterator TE TD 1.6.
The preparation method of oil-resisting heat-resisting seal piece size comprises the following steps:
(1) plasticate: start Banbury mixer, will fourth NBR3606 and NBR2707 drop in Banbury mixer and plasticate, after plasticating 15-25 minute, when temperature reaches 110-120 ℃, the beginning discharge was parked after discharge cooling 23-25 hour;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in Banbury mixer, add again magnesium oxide, zinc oxide, Zinic stearas, anti-aging agent class, Microcrystalline Wax, rubber processing aids WB212, after mixing 3-4 minute, then the carbon black class is added at twice wherein mixing, first added the 2/3 mixing 2-3 of carbon black minute, add again residue 1/3 carbon black, turned refining 2-3 minute, then after adding the abundant mixing 3-4 of dioctyl ester minute, when temperature reaches 85-90 ℃, the beginning discharge was parked after discharge cooling 23-25 hour;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in mill, then sulphur, promotor class are added in rubber unvulcanizate, thin-pass 5-7 be all over can obtain sizing material, the processing temperature of mill≤60 ℃.
Beneficial effect of the present invention:
Rubber size formula of the present invention has vulcanization rate fast, and other over-all properties of gained sizing material is good.The oil-resistant sealing element of producing with this sizing material has good oil resistant, resistance toheat, and resistance to air loss is good, has reduced simultaneously production cost, has improved production efficiency.
Embodiment
Part used in embodiment is weight part.
Embodiment one:
1, starting material are prepared:
Fourth NBR3606 80, NBR2707 80, sulphur 0.8, magnesium oxide 3.5, zinc oxide 8, Zinic stearas 1.5, anti-aging agent RD 3, antioxidant MB 1.5, Microcrystalline Wax 1.6, rubber processing aids WB212 1.8, carbon black N550100, carbon black N330 50, dioctyl ester 60, altax 2.4, Vulcanization accelerator TMTD 1.6, acceterator TE TD1.6.
2, the preparation method of oil-resisting heat-resisting seal piece size comprises the following steps:
(1) plasticate: start Banbury mixer, will fourth NBR3606 and NBR2707 drop in Banbury mixer and plasticate, after plasticating 15-25 minute, when temperature reaches 110-120 ℃, the beginning discharge was parked after discharge cooling 23-25 hour;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in Banbury mixer, add again magnesium oxide, zinc oxide, Zinic stearas, anti-aging agent class, Microcrystalline Wax, rubber processing aids WB212, after mixing 3-4 minute, then the carbon black class is added at twice wherein mixing, first added the 2/3 mixing 2-3 of carbon black minute, add again residue 1/3 carbon black, turned refining 2-3 minute, then after adding the abundant mixing 3-4 of dioctyl ester minute, when temperature reaches 85-90 ℃, the beginning discharge was parked after discharge cooling 23-25 hour;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in mill, then vulcanizing agent class, promotor class are added in rubber unvulcanizate, thin-pass 5-7 be all over can obtain sizing material, the processing temperature of mill≤60 ℃.
Testing data
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 contrasts as following table:
The oil-proofness of oil-resistant rubber material of the present invention, resistance toheat, resistance to air loss and resistance to tearing are all good than conventional oil resisting material as can be seen from the table.
Claims (2)
1. an oil-resisting heat-resisting seal piece size, is characterized in that, the weight part of its constitutive material is:
NBR3606 75-85, NBR2707 75-85, sulphur 0.7-0.9, magnesium oxide 3-4, zinc oxide 7-9, Zinic stearas 1-2, anti-aging agent RD 2-4, antioxidant MB 1-2, Microcrystalline Wax 1.5-1.7, rubber processing aids WB212 1.7-1.9, carbon black N550 95-105, carbon black N330 48-52, dioctyl ester 55-65, altax 2.3-2.5, Vulcanization accelerator TMTD 1.5-1.7, acceterator TE TD 1.5-1.7;
Its preparation method comprises the following steps:
(1) plasticate: start Banbury mixer, will NBR3606 and NBR2707 drop in Banbury mixer and plasticate, after plasticating 15-25 minute, when temperature reaches 110-120 ℃, the beginning discharge was parked after discharge cooling 23-25 hour;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in Banbury mixer, add again magnesium oxide, zinc oxide, Zinic stearas, anti-aging agent class, Microcrystalline Wax, rubber processing aids WB212, after mixing 3-4 minute, then the carbon black class is added at twice wherein mixing, first added the 2/3 mixing 2-3 of carbon black minute, add again residue 1/3 carbon black, turned refining 2-3 minute, then after adding the abundant mixing 3-4 of dioctyl ester minute, when temperature reaches 85-90 ℃, the beginning discharge was parked after discharge cooling 23-25 hour;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in mill, then sulphur, promotor class are added in rubber unvulcanizate, thin-pass 5-7 be all over can obtain sizing material, the processing temperature of mill≤60 ℃.
2. oil-resisting heat-resisting seal piece size according to claim 1, it is characterized in that, the weight part of its constitutive material is: NBR3606 80, NBR2707 80, sulphur 0.8, magnesium oxide 3.5, zinc oxide 8, Zinic stearas 1.5, anti-aging agent RD 3, antioxidant MB 1.5, Microcrystalline Wax 1.6, rubber processing aids WB212 1.8, carbon black N550 100, carbon black N330 50, dioctyl ester 60, altax 2.4, Vulcanization accelerator TMTD 1.6, acceterator TE TD 1.6.
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| CN103408812B (en) * | 2013-07-08 | 2016-05-11 | 天津包博特密封科技有限公司 | A kind of preparation method of ultra-large type slush pump pump shaft L-type seal piece size |
| CN103772765B (en) * | 2014-01-23 | 2016-04-27 | 亚新科噪声与振动技术（安徽）有限公司 | A kind of paracril NBR gear cap sealing material and preparation method thereof |
| CN104119584B (en) * | 2014-07-03 | 2016-04-27 | 安徽京鸿密封件技术有限公司 | A kind of have sealing member that is fire-retardant, oil resistant characteristic |
| CN104119585A (en) * | 2014-07-03 | 2014-10-29 | 安徽京鸿密封件技术有限公司 | Oil-resistant sealing member |
| CN117362778B (en) * | 2023-10-27 | 2024-07-26 | 山西泰宝科技有限公司 | Sealing ring rubber compound special for hydraulic system and preparation method thereof |
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| CN101597391A (en) * | 2009-06-12 | 2009-12-09 | 浙江荣康密封件有限公司 | A kind of highly-abrasion-resistant butadiene-acrylonitrile-rubber vulcanized rubber and preparation method thereof |
| CN101649180A (en) * | 2009-08-03 | 2010-02-17 | 上海华化塑胶有限公司 | Oil resistance foamable end cap sealing material and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597391A (en) * | 2009-06-12 | 2009-12-09 | 浙江荣康密封件有限公司 | A kind of highly-abrasion-resistant butadiene-acrylonitrile-rubber vulcanized rubber and preparation method thereof |
| CN101649180A (en) * | 2009-08-03 | 2010-02-17 | 上海华化塑胶有限公司 | Oil resistance foamable end cap sealing material and preparation method thereof |
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| 密封件用高硬度丁腈橡胶的混炼工艺探讨;丁庆凯;《特种橡胶制品》;20110228;第32卷(第01期);63-64 * |
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