CN102942747A - Rare earth modified rubber for vehicle gas input/water input rubber pipe - Google Patents
Rare earth modified rubber for vehicle gas input/water input rubber pipe Download PDFInfo
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- CN102942747A CN102942747A CN2012104167279A CN201210416727A CN102942747A CN 102942747 A CN102942747 A CN 102942747A CN 2012104167279 A CN2012104167279 A CN 2012104167279A CN 201210416727 A CN201210416727 A CN 201210416727A CN 102942747 A CN102942747 A CN 102942747A
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Abstract
The invention provides a rare earth modified rubber for a vehicle gas input/water input rubber pipe, and relates to the technical field of rubber formulas. The technical scheme comprises that: a chlorinated polyethylene rubber (CM) and a chloroprene rubber (CR) are subjected to modification through a rare earth compound to prepare the rare earth modified rubber, wherein the components comprise, by mass, 85 parts of the CM, 15 parts of the CR, 5.8-14 parts of a vulcanization system, 2-5 parts of a rare earth modifier, 15-20 parts of dioctyl phthalate, 15-20 parts of magnesium oxide, 1-3 parts of paraffin, 40-70 parts of fast extruding furnace black, and 40-70 parts of calcium carbonate. With the formula, mechanical strength and heat oxygen aging resistance of the rubber material can be improved, and problems of hard and brittle property after aging, large compression permanent deformation, difficult forming demolding and the like can be solved so as to replace an ethylene-propylene-diene-terpolymer rubber to be used for vehicle gas input/water input rubber pipes, such that a high performance price ratio advantage is provided.
Description
Technical field
The present invention relates to the elastomeric material technical field, be specifically related to a kind of rare earth modified rubber that is applicable to automobile gas transmission/water tube hose goods.
Background technology
Automobile gas transmission, glue pipe adopt terpolymer EP rubber (EPDM) usually, the substantial appreciation of prices of EPDM rubber has consisted of larger cost pressure to correlated product manufacturer and user in recent years, therefore, reduce the automotive hose series products to the undue dependence of EPDM rubber, develop the sebific duct elastomeric material that has more superiority of effectiveness and paid close attention to by automobile main frame maker and components supplying merchant.
Chlorinated polyethylene rubber (CM) is a kind of saturated elastomerics that polyethylene is made by the chlorine substitution reaction, have good anti-ozone, anti-marquis, heat-proof aging, oil resistant and flame retardant resistance, in rubber cable, sebific duct, adhesive tape, sealing member, obtained increasingly extensive application.In the actual production process of CM sebific duct, also exist some to affect the technical matters difficult problem of its normal use at present, mainly comprise:
1, is difficult for the demoulding behind the rubber vulcanization;
2, cross-linked rubber hardness increasing degree after high temperature (〉=120 ℃) is aging for a long time is excessive, hard crisp phenomenon occurs;
3, cross-linked rubber compression set is larger, and rebound resilience is poor;
4, resistance to low temperature is not good enough, temperature limit of brittleness higher (approximately-20 ℃);
5, thermo-stabilizer mostly is environmentally hazardous substance (such as lead salt etc.).
Rare earth element makes rare-earth additive at improvement processing of high molecular material and application performance and gives its new function aspects with its special electronic structure has unique effects.After rare earth adds rubber, can produce " instantaneous complexing " effect and " absorption reinforcement " effect to the rubber polymer, effect that thus can Reinforced Rubber opposing external force improves rubber hardness, can stop again the swelling action of solvent, promotes the resistance to medium of rubber.The synergistic effect of the two also can make the different phase affinities in the system improve, thereby improves rubbery intensity, and the thermo oxidative aging performance also increases wear resistance.
Adopt rare-earth additive to carry out the focus that modified rubber is just becoming the high-performance rubber developing material, concrete modified technique is that Banbury mixer adds rare-earth modifier and makes behind the rubber master batch mixing behind the rubber plastic steelmaking.
Summary of the invention
The present invention aims to provide the effective rare earth modified rubber of a kind of automobile gas transmission/glue, not only can solve the technological problems of chlorinated polyethylene rubber hose goods demoulding difficulty, can give its higher bearing capacity and good heat-resistant stability simultaneously.
Technical scheme of the present invention is: the effective rare earth modified rubber of a kind of automobile gas transmission/glue, it is characterized in that: be main body and add rare-earth modifier and carry out modification by chlorinated polyethylene rubber (CM) and chloroprene rubber (CR), it is as follows that each components in mass portion is counted proportioning: chlorinated polyethylene rubber is 85 parts, chloroprene rubber is 15 parts, vulcanization system is 5.8～14 parts, rare-earth modifier is 2～5 parts, o-phthalic acid dibutyl ester is 15～20 parts, magnesium oxide is 15～20 parts, paraffin is 1～3 part, fast extrusion carbon black is 40～70 parts, and calcium carbonate is 40～70 parts.
The described vulcanization system of above prescription has two kinds:
The one, superoxide-sulfur cross-linking system, each components in mass portion is counted proportioning and is: dicumyl peroxide is that 6 parts, sulphur are that 1 part, N cyclohexyl 2 benzothiazole sulfenamide are 1 part, and triallyl isocyanurate is 5 parts.This system is applicable to molded vulcanization.
The 2nd, thiadiazoles-sulfur cross-linking system, each components in mass portion is counted proportioning and is: dimercaptothiodiazole is derivative to be 2.5, and sulphur is 1 part, and this amine of butyraldehyde-n condenses is 0.8 part.This system is applicable to open vulcanization.
Described rare-earth modifier is the mixture of cerium naphthenate and Lanthanum Stearate, is 1:1 by the mass fraction blending ratio.
Beneficial effect: elastomeric material of the present invention is easy to shaping and demoulding, the sebific duct goods of preparation can satisfy the technical requirements of automobile gas transmission/glue pipe product thus, and have higher anti-burst pressure and a heatproof air aging performance of more general chlorinated polyethylene rubber hose goods of compounds containing rare earth, alternative terpolymer EP rubber is used for automobile gas transmission/glue pipe, has embodied higher superiority of effectiveness.
Embodiment
Embodiment 1(is applicable to molded vulcanization): the effective rare earth modified rubber of a kind of automobile gas transmission/glue, each components in mass portion number is as follows: CM rubber (CM352L) is 85 parts, CR rubber (2322) is 15 parts, fast extrusion carbon black (N550) is 60 parts, calcium carbonate is 60 parts, dioctyl phthalate (DOP) is 20 parts, cerium naphthenate is 1 part, Lanthanum Stearate (JRA-D) is 1 part, and magnesium oxide is 15 parts, and paraffin is 2 parts, dicumyl peroxide (DCP) is 6 parts, sulphur is 1 part, and N cyclohexyl 2 benzothiazole sulfenamide (CZ) is 1 part, and triallyl isocyanurate (TAIC) is 5 parts.
The elastomeric material performance of embodiment 1 is as follows:
Tensile strength (Mpa) 10
Tensile yield (%) 360
120 ℃ * 70h warm air accelerated deterioration performance:
Changes in hardness (shoreA) 15
Tensile strength velocity of variation (%)+15
Tensile yield velocity of variation (%)-48
100 ℃ * 70h media-resistant volume change:
The NO.1 of anti-AMTS volume change (%)+14
Resistance to braking fluid volume change (%)-5
100 ℃ * 70h load lower compression tension set (%) 21.
Embodiment 2(is applicable to molded vulcanization): the effective rare earth modified rubber of a kind of automobile gas transmission/glue, each components in mass portion number is as follows: CM rubber (CM352L) is 85 parts, CR rubber (2322) is 15 parts, fast extrusion carbon black (N550) is 60 parts, calcium carbonate is 60 parts, dioctyl phthalate (DOP) (DOP) is 20 parts, cerium naphthenate is 2 parts, Lanthanum Stearate (JRA-D) is 2 parts, and magnesium oxide is 15 parts, and paraffin is 2 parts, dicumyl peroxide (DCP) is 6 parts, sulphur is 1 part, and N cyclohexyl 2 benzothiazole sulfenamide (CZ) is 1 part, and triallyl isocyanurate (TAIC) is 5 parts.
The elastomeric material performance of embodiment 2 is as follows:
Tensile strength (Mpa) 12
Tensile yield (%) 368
120 ℃ * 70h warm air accelerated deterioration performance:
Changes in hardness (shoreA) 14
Tensile strength velocity of variation (%)+14
Tensile yield velocity of variation (%)-48
100 ℃ * 70h media-resistant volume change:
The NO.1 of anti-AMTS volume change (%)+14
Resistance to braking fluid volume change (%)-5
100 ℃ * 70h load lower compression tension set (%) 18.
Embodiment 3(is applicable to sulfurizing pot vulcanization): the effective rare earth modified rubber of a kind of automobile gas transmission/glue, each components in mass portion number is as follows: CM rubber (CM352L) is 85 parts, CR rubber (2322) is 15 parts, fast extrusion carbon black (N550) is 60 parts, calcium carbonate is 60 parts, dioctyl phthalate (DOP) (DOP) is 20 parts, cerium naphthenate is 1 part, Lanthanum Stearate (JRA-D) is 1 part, magnesium oxide is 15 parts, and paraffin is 2 parts, and sulphur is 1 part, dimercaptothiodiazole derivative (ECHO.A) is 2.5 parts, and this amine of butyraldehyde-n condenses (808) is 0.8 part.
Case 3 elastomeric material performances are as follows:
Tensile strength (Mpa) 10
Elongation rate of tensile failure (%) 360
120 ℃ * 70h warm air accelerated deterioration performance:
Changes in hardness (shoreA) 15
Tensile strength velocity of variation (%)+15
Elongation rate of tensile failure velocity of variation (%)-48
100 ℃ * 70h media-resistant volume change:
The NO.1 of anti-AMTS volume change (%)+14
Resistance to braking fluid volume change (%)-5
100 ℃ * 70h load lower compression tension set (%) 22.
Embodiment 4(is applicable to sulfurizing pot vulcanization): the effective rare earth modified rubber of a kind of automobile gas transmission/glue, each components in mass portion number is as follows: CM rubber (CM352L) is 85 parts, CR rubber (2322) is 15 parts, fast extrusion carbon black (N550) is 60 parts, calcium carbonate is 60 parts, dioctyl phthalate (DOP) (DOP) is 20 parts, cerium naphthenate is 2 parts, Lanthanum Stearate (JRA-D) is 2 parts, magnesium oxide is 15 parts, and paraffin is 2 parts, and sulphur is 1 part, dimercaptothiodiazole derivative (ECHO.A) is 2.5 parts, and this amine of butyraldehyde-n condenses (808) is 0.8 part.
Case 4 elastomeric material performances are as follows:
Tensile strength (Mpa) 11
Elongation rate of tensile failure (%) 367
120 ℃ * 70h warm air accelerated deterioration performance:
Changes in hardness (shoreA) 13
Tensile strength velocity of variation (%)+14
Elongation rate of tensile failure velocity of variation (%)-46
100 ℃ * 70h media-resistant volume change:
The NO.1 of anti-AMTS volume change (%)+14
Resistance to braking fluid volume change (%)-5
100 ℃ * 70h load lower compression tension set (%) 22.
Elastomeric material of the present invention is easy to shaping and demoulding, the sebific duct goods of preparation can satisfy the technical requirements of automobile gas transmission, glue pipe product thus, and have higher anti-burst pressure and a heatproof air aging performance of more general chlorinated polyethylene rubber hose goods of compounds containing rare earth, alternative terpolymer EP rubber (EPDM) rubber is used for automobile gas transmission, glue pipe, has embodied higher superiority of effectiveness.
Among the present invention: dimercaptothiodiazole derivative (ECHO.A) and this amine of butyraldehyde-n condenses (808) are bought from " Heng Xin, Yantai chemical industry company limited "; Cerium naphthenate is bought from " Hebei Fu Ersi specialization worker company limited "; Lanthanum Stearate is bought from " remy hair auxiliary reagent factory, Yutian County, Tianjin ".
Claims (4)
1. effective rare earth modified rubber of automobile gas transmission/glue, it is characterized in that: be main body and add rare-earth modifier and carry out modification by chlorinated polyethylene rubber and chloroprene rubber, it is as follows that each components in mass portion is counted proportioning: chlorinated polyethylene rubber is 85 parts, chloroprene rubber is 15 parts, vulcanization system is 5.8～14 parts, rare-earth modifier is 2～5 parts, o-phthalic acid dibutyl ester is 15～20 parts, magnesium oxide is 15～20 parts, paraffin is 1～3 part, fast extrusion carbon black is 40～70 parts, and calcium carbonate is 40～70 parts.
2. the effective rare earth modified rubber of a kind of automobile gas transmission/glue according to claim 1, each components in mass portion that it is characterized in that described vulcanization system is counted proportioning and is: dicumyl peroxide is that 6 parts, sulphur are that 1 part, N cyclohexyl 2 benzothiazole sulfenamide are 1 part, and triallyl isocyanurate is 5 parts.
3. the effective rare earth modified rubber of a kind of automobile gas transmission/glue according to claim 1, each components in mass portion that it is characterized in that described vulcanization system is counted proportioning and is: dimercaptothiodiazole is derivative to be 2.5, sulphur is 1 part, and this amine of butyraldehyde-n condenses is 0.8 part.
4. according to claim 1 and 2 or the effective rare earth modified rubber of 3 described a kind of automobile gas transmission/glues, it is characterized in that described rare-earth modifier is the mixture of cerium naphthenate and Lanthanum Stearate, is 1:1 by the mass fraction blending ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012104167279A CN102942747A (en) | 2012-10-28 | 2012-10-28 | Rare earth modified rubber for vehicle gas input/water input rubber pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104167279A CN102942747A (en) | 2012-10-28 | 2012-10-28 | Rare earth modified rubber for vehicle gas input/water input rubber pipe |
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| CN102942747A true CN102942747A (en) | 2013-02-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045925A (en) * | 2014-07-14 | 2014-09-17 | 柳州市颖航汽配有限公司 | Automobile engine fuel oil rubber tube |
| CN106800678A (en) * | 2017-01-13 | 2017-06-06 | 湖北森鑫汽车零部件有限公司 | A kind of refining process of the fatigue-resisting rubber material that vehicle vibration damping element is used |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089039A (en) * | 2006-06-12 | 2007-12-19 | 深圳市迅特科技有限公司 | Chlorinated polyethylene-neoprene mixed polymer |
| CN101314654A (en) * | 2008-06-10 | 2008-12-03 | 江西电缆有限责任公司 | Jacket formula for rubber jacketed flame-proof cable and production method thereof |
-
2012
- 2012-10-28 CN CN2012104167279A patent/CN102942747A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089039A (en) * | 2006-06-12 | 2007-12-19 | 深圳市迅特科技有限公司 | Chlorinated polyethylene-neoprene mixed polymer |
| CN101314654A (en) * | 2008-06-10 | 2008-12-03 | 江西电缆有限责任公司 | Jacket formula for rubber jacketed flame-proof cable and production method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 史振学等: "稀土在橡胶生产中的应用", 《稀土》, vol. 27, no. 2, 30 April 2006 (2006-04-30), pages 75 - 80 * |
| 杜爱华等: "橡胶型氯化聚乙烯与氯丁胶共混物的性能研究", 《弹性体》, vol. 15, no. 3, 25 June 2005 (2005-06-25), pages 12 - 16 * |
| 鲁冰雪: "氯化聚乙烯橡胶与氯丁橡胶共混胶相容性及配合体系的研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》, no. 07, 15 July 2012 (2012-07-15), pages 016 - 321 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045925A (en) * | 2014-07-14 | 2014-09-17 | 柳州市颖航汽配有限公司 | Automobile engine fuel oil rubber tube |
| CN106800678A (en) * | 2017-01-13 | 2017-06-06 | 湖北森鑫汽车零部件有限公司 | A kind of refining process of the fatigue-resisting rubber material that vehicle vibration damping element is used |
| CN106800678B (en) * | 2017-01-13 | 2018-09-11 | 湖北森鑫汽车零部件有限公司 | A kind of refining process for the fatigue-resisting rubber material that vehicle vibration damping element uses |
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Application publication date: 20130227 |