CN103087370A - Rubber capable of bonding with THV - Google Patents
Rubber capable of bonding with THV Download PDFInfo
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- CN103087370A CN103087370A CN2013100434970A CN201310043497A CN103087370A CN 103087370 A CN103087370 A CN 103087370A CN 2013100434970 A CN2013100434970 A CN 2013100434970A CN 201310043497 A CN201310043497 A CN 201310043497A CN 103087370 A CN103087370 A CN 103087370A
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Abstract
The invention relates to a rubber capable of bonding with THV. The rubber capable with bonding with THV contains 30-60wt% of acrylonitrile-butadiene rubber, 2-8wt% of DBU and 3-12wt% of magnesium oxide. The rubber capable of bonding with THV solves a difficult bonding problem of the acrylonitrile-butadiene rubber with THV, makes the acrylonitrile-butadiene rubber well bond with a THV fluoroplastic material in a vulcanization reaction process, can effectively improve the scorching resistance of the acrylonitrile-butadiene rubber, solves the scorching problem caused by the addition of DBU to the acrylonitrile-butadiene rubber, and reaches required performance needs.
Description
Technical field
The present invention relates to a kind of rubber bonding with THV, be specifically related to a kind of paracril for the automobile low-penetration fuel hose, described rubber is fit to THV fluoroplastics material bonding, belongs to the sebific duct technical field.
Background technology
In recent years, along with the develop rapidly of economy, countries in the world are all recognized the nervous situation of the energy gradually, and recognize the negative impact that expanding economy brings global environment, so the input of various countries aspect save energy and environmental protection is also increasing.Safe, energy-conservation and environmental protection is the eternal theme of automotive engineering development.Adopting the electronic fuel injection system engine is one of important measures that reduce discharging.After automobile adopted electronic fuel injection engine, the common engine of fuel system pressure ratio had improved 10 times of left and right, and the use of electronic fuel injection engine not only makes the temperature of engine itself raise, and ambient temperature is also raise; Added oxygenated compound in the fuel oil composition that uses in addition.In prime the fuel system, the vehicle fuel pipe is important safety member, comprises the fuel oil transition pipeline and gives the fuelpipe of engine fuel supplying.
Aspect automotive industry, in order effectively to control discharge of automobile exhaust fumes, each state is all improving constantly the emission standard of automotive fuel oil system, and is also more and more higher to the infiltration requirement of fuel hose.Simultaneously, very harsh to the life requirement of fuelpipe because prime the fuel system shows high temperature, acidifying and high-pressure trend, need thus to develop requirement high pressure resistant, low-penetration fuel hose.The hose lining of fuelpipe will be selected the material of anti-fuel medium and good heat resistance; Outer layer glue will be selected the good material of adhesion property of heat-resisting, anti-ozone, anti-environmental influence and hose lining.
CN102146173A discloses the paracril of a kind of and fluoro-resin or fluororubber binding and as the application of fuelpipe; The component of the formula of rubber is paracril rubber, magnesium oxide, calcium hydroxide, stearic acid, anti-aging agent RD, antioxidant NBC, coumarone, tackiness agent Ricobond2031, extrudes carbon black N550, high abrasion carbon black N330, White Carbon black, trioctyl trimellitate, liquid acrylonitrile butadiene rubber 26, sulphur, accelerant CZ and Vulcanization accelerator TMTD soon.Use the automotive hose of this paracril production to satisfy normal production conditions and performance, reduce simultaneously material cost.But the bonding strength of itself and fluoroplastics remains further to be improved.
The fuel resistance of THV fluoroplastics material can be very excellent, be widely used as the fuel oil barrier layer of fuel hose, but supporting elastomeric material can not be bonding well such as paracril and THV fluoroplastics material with it, and the special purpose rubber material prescription that therefore research and development are fit to and THV fluoroplastics material is bonding is imperative.
Summary of the invention
One of purpose of the present invention is to provide a kind of rubber bonding with THV, and described rubber can be bonding well with THV fluoroplastics material, after being used for processing fuel hose, has that good fuel oil intercepts, the characteristic of heat-resisting, anti-environmental aging.
The present invention is achieved through the following technical solutions:
The rubber that a kind of and THV are bonding contains the paracril of 30 ~ 60wt%, the DBU of 2 ~ 8wt% and the magnesium oxide of 3 ~ 12wt%.
Preferably, in the bonding rubber of described and THV, the content of paracril is preferably 35 ~ 60wt%, further preferred 35 ~ 55wt%; The content of DBU is preferably 2 ~ 5wt%, further preferred 3 ~ 5wt%; Magnesian content is preferably 3 ~ 8wt%, further preferred 4 ~ 8wt%.
Paracril claims again the butadiene-propylene nitrile rubber, is called for short NBR, molecular-weight average 700,000 left and right.Canescence is to light yellow bulk or powdery solid, relative density 0.95~1.0.Paracril has good oil-proofness, wear resistance, resistance to air loss and water tolerance, and its oil-proofness is only second to thiorubber and viton, and resistance to air loss is only second to isoprene-isobutylene rubber, and thermotolerance is better than styrene-butadiene rubber(SBR), chloroprene rubber, can be 120 ℃ of long term operations; The shortcoming of paracril is not anti-ozone and aromatic series, halohydrocarbon, ketone and esters solvent, is unfit to do insulating material.The performance of paracril is affected by acrylonitrile content, improve along with acrylonitrile content increases tensile strength, thermotolerance, oil-proofness, resistance to air loss, hardness, but elasticity, winter hardiness reduces.Paracril ozone resistance and electrical insulation capability are not good.Paracril plays the effect of basic glue in the bonding rubber of of the present invention and THV.Paracril of the present invention can be by commercially available.
In the bonding rubber of described and THV, the content of paracril can be 31wt%, 33wt%, 36wt%, 40wt%, 42wt%, 47wt%, 51wt%, 55wt%, 57wt% or 59wt% etc.
DBU, chemical name are 1,8-diazabicylo-dicyclo (5,4,0)-7-hendecene, are colourless extremely faint yellow transparent oily liquids, and volatility is relatively low, and almost odorless, be a kind of amidine class that steric hindrance is arranged, and has strong basicity.The relative density of DBU is 1.04-1.07, and the viscosity of 25 ℃ is 14mPas, and boiling point 278-85 ℃, the specific refractory power of 25 ℃ is 1.5219,96 ℃ of flash-points, fusing point<-78 ℃, vapour pressure (21 ℃)<173Pa, 1% solution ph=12~13.5; Purity is general 〉=and 98%, moisture≤0.3%.DBU plays the effect of catalyzer, part and non-nucleophilicity alkali in the organism reaction.DBU is mainly as the catalyzer in the urethane industry.
DBU normally generates N-(2-cyano ethyl) hexanolactam (being called for short CEC) by hexanolactam and vinyl cyanide nucleophilic addition(Adn), then the CEC shortening is obtained into N-(3-aminopropyl) hexanolactam (being called for short APC), with the APC cyclodehydration, underpressure distillation namely obtains DBU at last.
DBU plays the effect of vulcanization accelerator in the bonding rubber of of the present invention and THV.
DBU of the present invention can be by commercially available, Polycat DBU, PC CAT DBU, the DUB of BASF of German Nitroil performance chemical company, the SANYO GS that preferred described DBU is selected from U.S. Air Products company change into the strain formula can NEWTOP or the combination of any a kind or at least 2 kinds in the CT-DBU of new allusion quotation chemical material.
In the bonding rubber of described and THV, the content of DBU can be 2.2wt%, 2.5wt%, 2.9wt%, 3.1wt%, 3.6wt%, 4.2wt%, 4.7wt%, 5.3wt%, 5.8wt%, 6.5wt%, 6.8wt%, 7.5wt%, 7.9wt% etc.
In the bonding rubber of of the present invention and THV, magnesium oxide plays mobility and improves antioxidant capacity, increases the tensile strength of rubber and the effect of anti-impact force.Can delay vulcanization rate magnesian adding, and prevents crosslinkedly in early days, overcomes the incipient scorch phenomenon.Magnesian activity (iodine sorption value) height is very large on the scorching quality impact of the rubber that adds DBU, to its tensile strength, surely to stretch power and hardness also influential.
Magnesium oxide of the present invention is activated magnesia, the particle diameter of described activated magnesia is preferred≤and 2 μ m, such as 1.8 μ m, 1.5 μ m, 1.1 μ m, 0.8 μ m, 0.4 μ m etc., specific surface is preferably at 5 ~ 20m
3Between/g, 5.1m for example
3/ g, 5.7m
3/ g, 6.5m
3/ g, 7.7m
3/ g, 8.5m
3/ g, 10m
3/ g, 13m
3/ g, 16m
3/ g, 18m
3/ g, 19m
3/ g etc.; Iodine sorption value is preferably 80 ~ 120mg/g, such as 83mg/g, 88mg/g, 96mg/g, 105mg/g, 116mg/g, 118mg/g etc.Magnesium oxide of the present invention can be by commercially available.
In the bonding rubber of described and THV, magnesian content can be 3.2wt%, 3.5wt%, 3.9wt%, 4.1wt%, 4.6wt%, 5.2wt%, 5.7wt%, 6.3wt%, 6.8wt%, 7.5wt%, 7.8wt%, 8.5wt%, 8.9wt%, 9.5wt%, 9.7wt%, 10.3wt%, 10.8wt%, 11.4wt%, 11.7wt% etc.
THV fluoroplastics material is the stronger material of a kind of unreactiveness, it is difficult to form reaction with elastomeric material, the present invention adopts peroxide vulcanizing system, add activated magnesia to improve reactive behavior, add a certain amount of DBU in the formula simultaneously, DBU is the amidine class that steric hindrance is arranged, and the alkalescence that tool is extremely strong is used as catalyzer, part and non-nucleophilicity alkali in the organism reaction.The present invention adopts being used in conjunction with of DBU and activated magnesia, greatly strengthens the reactive behavior of paracril, thereby paracril and THV fluoroplastics material very well are bonded together in the vulcanization reaction process.
As optimal technical scheme, the bonding rubber of described and THV comprises following component by weight percentage:
Wherein, each component sum of described rubber is 100wt%.
Vulcanizing agent can make rubber molecular chain play crosslinking reaction, makes linear molecule form tridimensional network, and plasticity-reduces, the material of elasticator strength increase.
Preferably, described vulcanizing agent is selected from 2,5-dimethyl-2, the combination of any a kind or at least 2 kinds in 5-bis(t-butylperoxy) hexane (be called for short vulcanizing agent two 2.5), t-butylperoxyl benzoate (being called for short vulcanizing agent TBPB), di-t-butyl peroxide (being called for short vulcanizing agent DTBP) or dicumyl peroxide (being called for short vulcanizing agent DCP), preferred vulcanizing agent is two 2.5, described combination such as vulcanizing agent two 2.5/ vulcanizing agent TBPB, vulcanizing agent DTBP/ vulcanizing agent DCP, the two 2.5/ vulcanizing agent DTBP/ vulcanizing agent DCP of vulcanizing agent etc.Vulcanizing agent of the present invention all can be by commercially available.
Preferably, the consumption of vulcanizing agent of the present invention two 2.5 is 1 ~ 2wt% of described rubber, such as 1.12wt%, 1.16wt%, 1.2wt%, 1.35wt%, 1.48wt%, 1.67wt%, 1.8wt%, 1.95wt% etc.
Preferably, carbon black of the present invention is selected from the combination of any a kind or at least 2 kinds in fast extrusion carbon black.
The fast carbon black (Fast Extruding Furnace black, FEF) that extrudes has another name called FEF fast extruding furnace black, is a kind of soft carbon, and by Audit For Process production, particle diameter is 40 ~ 48nm.The particle diameter of fast extrusion carbon black is larger, and structure is higher, can give the good processing characteristics of sizing material and higher stress at definite elongation, and elongation and hardness are lower, and living heat is little and thermal conductivity is good, and resistance to elevated temperatures is superior.
Fast extrusion carbon black of the present invention is selected from the combination of any a kind or at least 2 kinds in carbon black N-550, carbon black N-539 or carbon black N-660, described combination such as carbon black N-550/ carbon black N-539, carbon black N-539/ carbon black N-660, carbon black N-550/ carbon black N-539/ carbon black N-660 etc., preferred carbon black N-550.
Anti-aging agent is used for improving rubber to the effect of heat, oxygen, ozone, variable valency metal ions, mechanical stress, light, energetic ray, and the resistant function of the erosion of other chemical substance and mould etc., delay or suppress weathering process, thereby extending storage period and the work-ing life of rubber and goods thereof.
Preferably, anti-aging agent of the present invention is selected from anti-aging agent KY-405(4,4 ' two (a, the a-dimethyl benzyl) pentanoic), antioxidant A (N-phenyl-a-naphthylamine), anti-aging agent OD(octylated diphenylamine), antioxidant D ED(N, N '-diphenyl ethylene diamine) or antioxidant D DM(pair, right ' diamino-diphenylamine) in the combination of any a kind or at least 2 kinds, described combination such as anti-aging agent KY-405/ antioxidant A, anti-aging agent OD/ antioxidant D ED, antioxidant D ED/ antioxidant D DM/ antioxidant A etc., preferred anti-aging agent KY-405.Anti-aging agent of the present invention all can be by commercially available.
Softening agent is called again tenderizer, refers to reduce the reactive force of rubber molecule interchain, improves process industrial art performance, and can improve some physical and mechanical properties of sizing material, a class low-molecular weight compound that reduces costs.
Preferably, softening agent of the present invention is selected from the DBP(dibutyl phthalate), the DOP(dioctyl phthalate (DOP)), DOA(adipic acid dioctyl ester), the DOZ(dioctyl azelate), the DOS(dioctyl sebacate), the DBS(Uniflex DBS), the TCP(Tritolyl Phosphate), the TOP(trioctyl phosphate), the TOTM(trioctyl trimellitate) in the combination of any a kind or at least 2 kinds, described combination such as DBP/DOP, DOS/TCP, TOP/TCP/TOTM, DOP/DBP/DOZ etc., preferred TOTM.Softening agent of the present invention can be by commercially available.
Preferably, described crosslinking coagent is selected from the TMPTA(Viscoat 295), the TMPTAMA(trimethylolpropane trimethacrylate), HVA-2(N, the combination of any a kind or at least 2 kinds a N '-penylene bismaleimides), DAP(diallyl phthalic acid ester), TAIC(triallyl isocyanate), TAC(triallyl cyanate), described combination such as TMPTA/TMPTAMA, HVA-2/DAP, TAIC/TAC, TMPTAMA/TMPTA/TAIC etc., preferred TAIC.
As optimal technical scheme, the bonding rubber of of the present invention and THV comprises following component by weight percentage:
Wherein, each component sum of described rubber is 100wt%.
As optional technical scheme, the bonding rubber of of the present invention and THV comprises following component by weight percentage:
Perhaps, the bonding rubber of of the present invention and THV comprises following component by weight percentage:
The preparation method of the rubber that described and THV are bonding be conventional method for preparing rubber, is the known technology in affiliated field, and one of ordinary skill in the art can select as required, to can not exerting an influence with the bonding rubber performance of THV of preparing, does not repeat them here.
The technical requirement that the bonding rubber of provided by the invention and THV need to satisfy is as shown in table 1:
Table 1 is of the present invention and the technical requirement of the rubber that THV is bonding
Compared with prior art, the present invention has following beneficial effect:
The present invention selects DUB and activated magnesia to coordinate, and has not only greatly strengthened the reactive behavior of paracril, impels paracril and THV fluoroplastics material well to be bonded together in the vulcanization reaction process; And can effectively improve the anti-performance of burning of paracril, solve the incipient scorch problem that adds DBU to cause in paracril.
Embodiment
For the present invention is described better, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:
Embodiment 1-6 is as shown in table 2:
Table 2 embodiment 1-6 that provide with the formula bonding rubber of THV
Wherein, DBU is the CT-DBU of new allusion quotation chemical material; The particle diameter of activated magnesia is 0.5 ~ 2 μ m, and specific surface is preferably at 5 ~ 20m
3Between/g; Iodine sorption value is preferably 80 ~ 120mg/g.
Comparative Examples
Embodiment 1 in the paracril of CN102146173A disclosed a kind of and fluoro-resin or fluororubber binding is as Comparative Examples.
Performance test:
During embodiment 1-6 and Comparative Examples carry out tables 1, represented technical indicator is tested, and test result is as shown in table 3:
The performance test results of the rubber that table 3 embodiment 1-6 and Comparative Examples provide
Embodiment 7-9 is as shown in table 4:
Table 4 embodiment 7-9 that provide with the formula bonding rubber of THV
Through performance test, embodiment 7 ~ 9 all can satisfy the technical requirement shown in table 1.
This shows, the bonding rubber of provided by the invention and THV is that the cohesiveness aspect of THV is excellent than the Comparative Examples performance.
Should be noted that and understand, in the situation that do not break away from the desired the spirit and scope of the present invention of accompanying claim, can make to the present invention of foregoing detailed description various modifications and improvement.Therefore, the scope of claimed technical scheme is not subjected to the restriction of given any specific exemplary teachings.
Applicant's statement, the present invention illustrates method detailed of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned method detailed, does not mean that namely the present invention must rely on above-mentioned method detailed and could implement.The person of ordinary skill in the field should understand, any improvement in the present invention is to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., within all dropping on protection scope of the present invention and open scope.
Claims (10)
1. a rubber bonding with THV, is characterized in that, described rubber contains the paracril of 30 ~ 60wt%, the DBU of 2 ~ 8wt% and the magnesium oxide of 3 ~ 12wt%.
2. rubber as claimed in claim 1, is characterized in that, in described rubber, the content of paracril is 35 ~ 60wt%, preferred 35 ~ 55wt%;
Preferably, in described rubber, the content of DBU is 2 ~ 5wt%, preferred 3 ~ 5wt%;
Preferably, in described rubber, magnesian content is 3 ~ 8wt%, preferred 4 ~ 8wt%.
3. rubber as claimed in claim 1 or 2, it is characterized in that, Polycat DBU, PC CAT DBU, the DUB of BASF of German Nitroil performance chemical company, the SANYO GS that described DBU is selected from U.S. Air Products company change into the strain formula can NEWTOP or the combination of any a kind or at least 2 kinds in the CT-DBU of new allusion quotation chemical material.
4. rubber as described in one of claim 1 ~ 3, is characterized in that, described magnesium oxide is activated magnesia, the particle diameter of described activated magnesia is preferred≤and 2 μ m, specific surface is preferably at 5 ~ 20m
3Between/g; Iodine sorption value is preferably 80 ~ 120mg/g.
6. rubber as described in one of claim 1 ~ 5, is characterized in that, described vulcanizing agent is selected from that vulcanizing agent is two 2.5, the combination of any a kind or at least 2 kinds in vulcanizing agent TBPB, vulcanizing agent DTBP or vulcanizing agent DCP, and preferred vulcanizing agent is two 2.5;
Preferably, the consumption of described vulcanizing agent two 2.5 is 1 ~ 2wt% of described rubber.
7. rubber as described in one of claim 1 ~ 6, it is characterized in that, described carbon black is selected from the combination of any a kind or at least 2 kinds in fast extrusion carbon black, the combination of any a kind or at least 2 kinds in preferred carbon black N-550, carbon black N-539 or carbon black N-660, preferred carbon black N-550;
Preferably, described anti-aging agent is selected from the combination of any a kind or at least 2 kinds in anti-aging agent KY-405, antioxidant A, anti-aging agent OD, antioxidant D ED or antioxidant D DM, preferred anti-aging agent KY-405;
Preferably, described softening agent is selected from the combination of any a kind or at least 2 kinds in DBP, DOP, DOA, DOZ, DOS, DBS, TCP, TOP, TOTM, preferred TOTM;
Preferably, described crosslinking coagent is selected from the combination of any a kind or at least 2 kinds in TMPTA, TMPTAMA, HVA-2, DAP, TAIC, TAC, preferred TAIC.
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CN2013100434970A CN103087370A (en) | 2013-02-04 | 2013-02-04 | Rubber capable of bonding with THV |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108117845A (en) * | 2017-12-13 | 2018-06-05 | 华东理工大学 | A kind of adhesive bonding method of fluoroplastics and rubber |
CN109627515A (en) * | 2018-11-01 | 2019-04-16 | 山东美晨生态环境股份有限公司 | A kind of bonding anti-dropout rubber compounding |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5588469A (en) * | 1994-10-17 | 1996-12-31 | Marugo Rubber Industries, Ltd. | Hose for automotive fuel piping |
CN101046265A (en) * | 2006-03-28 | 2007-10-03 | 东海橡胶工业株式会社 | Fuel hose |
-
2013
- 2013-02-04 CN CN2013100434970A patent/CN103087370A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5588469A (en) * | 1994-10-17 | 1996-12-31 | Marugo Rubber Industries, Ltd. | Hose for automotive fuel piping |
CN101046265A (en) * | 2006-03-28 | 2007-10-03 | 东海橡胶工业株式会社 | Fuel hose |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108117845A (en) * | 2017-12-13 | 2018-06-05 | 华东理工大学 | A kind of adhesive bonding method of fluoroplastics and rubber |
CN108117845B (en) * | 2017-12-13 | 2020-06-02 | 华东理工大学 | Bonding method of fluoroplastic and rubber |
CN109627515A (en) * | 2018-11-01 | 2019-04-16 | 山东美晨生态环境股份有限公司 | A kind of bonding anti-dropout rubber compounding |
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Application publication date: 20130508 |