CN1496901A - Hose structure containing polymer composition - Google Patents
Hose structure containing polymer composition Download PDFInfo
- Publication number
- CN1496901A CN1496901A CNA200310100612XA CN200310100612A CN1496901A CN 1496901 A CN1496901 A CN 1496901A CN A200310100612X A CNA200310100612X A CN A200310100612XA CN 200310100612 A CN200310100612 A CN 200310100612A CN 1496901 A CN1496901 A CN 1496901A
- Authority
- CN
- China
- Prior art keywords
- acm
- evm
- automotive hose
- monomer
- weight portions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to an automotive hose having at least one rubber layer comprising from about 60 to about 95 parts by weight of ethylene vinyl acetate (EVM), and from about 5 to about 40 parts by weight of polyacrylic rubber (ACM).
Description
Technical field
The present invention relates to a kind of automotive hose, it has specific rubber layer.
Background technology
The elasticity blend that is widely used in the flexible pipe production of automobile comprises as disclosed haloflex, chlorosulphonated polyethylene and epichlorohydrin elastomer in the U.S. Patent No. 5683773.The blend that uses these poly-mers to make has the anti-dynamic fatigue that good little, the good cold flexibility of mechanical characteristics, compressive permanent set is become reconciled.These blends are because their saturated main chain also shows excellent antiageing, weather resisteant, resist chemical and ozone resistance, and the polarity that chlorine and ether composition provide causes good anti-oil swell performance.
The up-to-date technology code requirement of automotive hose blend has the performance of anti-empty G﹠O when temperature reaches 175 ℃.The blend that comprises haloflex and chlorosulphonated polyethylene cmpd can not be used for such high temperature.Under higher temperature, the copolymer of ethene and alkyl acrylate and terpolymer can be used as the flexible pipe blend, but the use cost height.
U.S. Patent No. 4759388 has disclosed a kind of flexible pipe of the inner and outer pipes that comprises acrylic rubber.Acrylic rubber can be a lower alkyl acrylate, or ester as in the presence of crosslinking agent with the key component of copolymerisable monomer polymerization.Acrylic rubber can be to comprise lower alkyl acrylate as Main Ingredients and Appearance and ethene and the vinyl acetate copolymer as polymeric composition comprising body.Crosslinking agent can be the acrylic acid derivative with one of carboxyl, epoxy radicals and chlorine atom, or methacrylic acid derivative.
European patent No.0370361 has disclosed the soft elastomeric polymer compound based on the ethylene vinyl acetate copolymer of crosslinked granular alkyl acrylate rubber and hydrolysis.
The medical pipe that U.S. Patent No. 5274035 has disclosed the ethylene vinyl acetate composite and made by it.Said composition comprises a large amount of ethylene vinyl acetates and a spot of one or more other poly-mers.Other poly-mer can comprise the terpolymer of alpha-olefin, acrylate and ethylenically unsaturated dicarboxylic such as ethylene/methyl acrylate/maleic anhydride.The ethylene vinyl acetate that is fit to comprises the vinyl acetate of about 50% weight of about 5-.
U.S. Patent No. 5492971 has disclosed a kind of curable ethylene copolymer blend composite, and it is the ionomer of ethylene dimerization thing, ethylene-unsaturated acid copolymer and the blend of peroxide firming agent.The ethylene dimerization thing can be an ethylene vinyl acetate.Ionomer can be ethylene/methyl acrylate/hydrogen ethyl maleate.
Disclosed the purposes that ethylene vinyl acetate is used for being fit to being applied to the blend of automotive hose among the paper No.187 that on September 21st to 24,1999 proposed in the meeting of the Orlando of Florida rubber branch of american chemical association.The ethylene vinyl acetate cmpd that is disclosed used by peroxide or radiant section crosslinked have an ethylene vinyl acetate of tackifying.Ethylene vinyl acetate cmpd is wherein compared with chlorosulphonated polyethylene or ethylene/methyl acrylate ternary polymerization compounds and is demonstrated excellent high-temperature behavior confining force.
Summary of the invention
The present invention relates to have the automotive hose of at least one rubber layer, rubber layer comprises the EVM of about 90 weight portions of about 60-and the ACM of about 40 weight portions of about 5-.
When the flexible pipe for example produced as shown in Figure 1, can make one or more elements by the polymer composition of copolymer that comprises ethene and vinyl acetate (ethylene vinyl acetate or EVM) and crosslinkable polyacrylic acid rubber (ACM).
The ethylene vinyl acetate that is suitable for composite can for example be instructed in the United States Patent(USP) Nos. 5093450,5089579 or 5135988 by the methods known in the art manufacturing.The EVM that is fit to comprises the vinyl acetate of about 80% weight of about 40-.In one embodiment, EVM comprises the vinyl acetate of about 70% weight of about 50-.The EVM that is fit to can obtain by various commercial source, comprises Du Pont, MillenniumPetrochemicals, Nova-Borealis Compounds LLC, AT Plastic Inc, Exxon, ATOChem, Bayer AG and other.In one embodiment, EVM is the Levapren series of Bayer company.The content range of EVM is about 95 weight portions of about 60-in the composite.Perhaps, EVM content is about 90 weight portions of about 70-, or about 90 weight portions of about 80-.
The crosslinkable polyacrylic acid rubber that is suitable for composite can for example be instructed in the U.S. Patent No. 5250644 with the known method manufacturing of this area.Crosslinkable polyacrylic acid rubber is called as in prior art as ACM, acrylic elastic body, alkyl acrylate copolymer, poly-(alkyl acrylate), poly-[(1-alkoxy carbonyl) ethene] or lactoprene.The ACM that is fit to can be by the incompatible manufacturing of the radical polymerization of any acrylate that uses in the preparation that is usually used in acrylic rubber.The representation example of acrylate is for example alkyl acrylate such as methyl acrylate, ethyl acrylate, butyl acrylate or 2-ethylhexyl acrylate, alkoxyalkyl acrylate such as acrylic acid methoxy ethyl ester and analogue.Usually use and have C
1To C
8The alkyl acrylate of alkyl and have a C
2To C
8The alkoxyalkyl acrylate of alkoxyalkyl, wherein alkoxy has 1 to 4 carbon atom.Can be used alone or as a mixture these acrylate.In one embodiment, ACM is the copolymer of ethyl acrylate, butyl acrylate and acrylic acid methoxy ethyl ester.
ACM is common and solidify position comonomer copolymerization to give cross-linking properties.For example the curing position monomer of acrylate and Halogen such as 2-chloroethyl vinyl ether and vinyl chloroacetate, epoxy monomer such as allyl glycidyl ether, glycidyl acrylate and GMA or the copolymerization of acrylic acid alkyl ester derivant are so that the acrylic rubber that obtains can be crosslinked with crosslinking agent or curing agent such as fatty acid soaps or amines such as ethyl tetramine or tetraethylenepentamine.Also can use the carboxylate type to solidify the position monomer, and binary is solidified the position monomer as Halogen monomer and carboxylic acid ester monomer in same ACM.In one embodiment, ACM comprises vinyl chloroacetate as solidifying the position comonomer.
The ACM that is fit to can obtain from several commercial source, comprises Hytemp 4053EP, Nipol AR74, Nipol AR72AF and analogue.The amount ranges that ACM is used in the composite is about 40 weight portions of about 5-.Perhaps ACM can be about 30 weight portions of about 10-, can also be about 20 weight portions of about 10-.
Therefore the EVM and the ACM that are used for composite add 100 weight portions of together forming rubber.The other composition that can add in the composite is meant based on 100 parts of EVM and ACM, the weight portion (phr) that accounts in per 100 parts of rubber.
Except EVM and ACM, rubber composition can comprise conventional additive, and it comprises intensifier, filler, pigment, accelerator, atiozonant, antioxidant, processing aid oil, activator, initiating agent, plasticizer, wax, presulfurization inhibitor, extending oil and analogue.
The representative of intensifier comprises carbon black, wherein based on the total rubber of 100 weight portions, adds the described carbon black of about 5-200 weight portion usually.In one embodiment, the amount ranges of carbon black is the about 120phr of about 10-; In another embodiment, the amount ranges of carbon black is about 90 weight portions of about 35-.Employed typical carbon black comprises N110, N330, N332, N472, N550, N630, N642, N650, N762, N770, N907, N908, N990 and N991.
The siliceous pigment agent that can generally use in rubber composition comprises the conventional pyrolysis and the siliceous pigment (monox) of precipitation, but preferred precipitated silica.The preferred in the present invention common siliceous pigment that uses is that precipitated silica for example can obtain by the acidifying of soluble silicate such as sodium silicate.
This common monox is characterised in that for example have about 600 sq ms of the about 40-of every gram, more generally be the BET face area of about 300 sq ms of the about 50-of every gram, it is to use radon survey.The BET method of meter area is described in Journal of the American Chemical Society the 60th volume the 304th page (1930).
Common monox can also be to have dibutyl phthalate absorption (DBP) in about 100 to about 400 scope, and the scope about 150 to about 300 more generally is a feature.
Think that common monox for example has the average maximum particle size in 0.01 to 0.05 micrometer range, this is by determination of electron microscopy, though silicon oxide particle is possible dimensionally even littler or may be bigger.
Can use the various monox that obtain from commercial, as here just for example and non-limiting be that the trade mark and the trade mark are 210,243 with Hi-Sil, 532EP etc. are available commercially from the monox of PPG Industries; Available from Rhodia for example the trade mark be the monox of Z1165MP and Z165GR and be the monox of VN2 and VN3 etc. available from the trade mark of Degussa AG.
Other operable filler comprises talcum, clay, calcium carbonate and analogue.The operable amount of per 100 parts by weight of rubber of other filler is about 5-150phr.Can also use the oil dispersant that comprises this filler.
Organosilane is 0.1-20phr as the scope of the operable amount of 3,3 ' two (triethoxysilylpropyltetrasulfide) tetrasulfides.The example that is fit to of such organosilane discloses in U.S. Patent No. 4128438, it whole here as a reference.The representative of the antidegradant in rubber composition comprises ceresine wax, paraffin, single phenol, bis-phenol, thiobisphenol, polyphenol, hydroquinone derivatives, phosphite, phosphate mixt, thioesters, naphthylamines, diphenol amine, replacement and unsubstituted Diaromatic amine derivatives, the diaryl phenylenediamine, p-phenylenediamine (PPD), quinoline and mixed amine.The about 10phr of the normally about 0.1-of the scope of antidegradant use amount, the about 6phr of preferably about 2-.The representative that is used in the processing aid oil in the rubber composition of the present invention comprises two thiobis N-benzanilides of activation, and is poly--right-dinitrosobenzene, xylyl-mercaptan, aliphatics naphthalene aryl resin, carbowax, oil, ester plasticiser, vulcanized vegetable oil, pine tar, phenol resin, synthetic oil, petroleum resin, polymer esters and rosin.The general use amount of these processing aid oil is the about 140phr of about 0-.Rubber layer can comprise the magnesium oxide of convention amount.Yet, have been found that in rubber layer, exist magnesium oxide to the bonding of flexible pipe composition and/or ooze out unfavorable.So in preferred embodiments, rubber layer does not comprise magnesium oxide.The general use amount of these additive-treated oils is 0.1-25phr.
The elastic composition that is used in the coating can be crosslinked with the curing agent that comprises various peroxide.The curing agent of use in the present composition comprises for example di-t-butyl peroxide, peroxide dicumyl, benzoyl peroxide; peroxidating 2,4-dichloro-benzoyl, tert-butyl peroxide-cumyl; t-butyl perbenzoate, tert-butyl peroxide, t-butyl peroxy (caproic acid 2-ethyl ester); 2; 5-dimethyl-2,5-two (crossing benzoyl)-hexane, benzoyl peroxide; 2; 5-dimethyl-2,5-(t-butylperoxy)-hexane, 1; 1-di-t-butyl peroxide 3; 3,5-trimethyl-cyclohexane, 4; 4-di-t-butyl peroxide n-butyl pentanoate and normal-butyl-4,4-two (t-butylperoxy) valerate.Other operable curing agent comprises diacyl or dialkyl peroxide such as a; a '-two (t-butylperoxy)-cumene; 2; 5-dimethyl-2,5-two (t-butylperoxy) hexane, peroxidating two-tert-butyl group 2; 5-dimethyl-2; 5-two (t-butylperoxy) hexin-3, peroxide lauroyl, t-butyl hydroperoxide; the hydrogen peroxide tertiary pentyl; the hydrogen peroxide cumene, t-butyl perbenzoate, tert-butyl peroxide; t-butyl peroxy (caproic acid 2-ethyl ester); 2,5-dimethyl 2,5-two (crossing benzoyl)-hexane and benzoyl peroxide.Commercially available all above-mentioned curing agent.
The use amount of curing agent can change, and in general, scope is 0.1-15phr (based on the active part of peroxide), and preferred content is 2-10phr.
Co-crosslinker can add in the rubber composition.The representation example of this co-crosslinker comprise cyanuric acid triallyl ester, isocyanuric acid triallyl ester, tricresyl phosphate allyl ester, trimellitic acid triallyl ester, two allyl subunit pentaerythritol esters, terephthalic acids diallyl ester, tetraallyl epoxyethane, citric acid triallyl ester, acetyl group triallyl epoxyethane, acetyl group triallyl citrate, two, three, four and face can acrylate or methacrylate, n; n ＇-metaphenylene-dimaleimide; 1,2-cis-poly-butadiene and their compound.The usual amounts of this co-crosslinker is 1-20phr, and the preferable range of co-crosslinker comprises 2-10phr.
The known method that the mixing of rubber composition can be used in the rubber mix technical field is finished.For example, composition can one step but general two steps mix i.e. at least one non-productive stage and a production mix stages thereafter.The final curing agent that comprises vulcanizator generally mixes in the final stage that is called " production " mix stages, mixes and takes place under temperature lower than the mixing temperature of the nonproductive mix stages of fwd or highest temperature usually.
The curing of rubber composition is generally carried out in about 160 ℃ to 190 ℃ typical temperature scope.Preferably in 170 ℃ to 180 ℃ scope, be cured.
These compositions can be used for the production as the pipe used at automobile of flexible pipe and analogue.These compositions can push or make one or more layers of one layer or more flexible pipe.Other of flexible pipe layer can be made with the material in the prior art.
With reference now to Fig. 1,, it shows the cooling pipe 10 of the transmission oil of making according to one embodiment of the invention.Pipe 10 comprises internal layer 11, covers and preferably sticks to the enhancement Layer 13 on the internal layer 11 and cover the skin 15 that also preferably sticks on the enhancement Layer 13.Enhancement Layer 13 is made by the suitable reinforcing material that comprises organic or inorganic fibre or copper coated steel wire, and the preferred organic fibrous material of reinforcing material is as nylon, polyester, aramid fiber, cotton thread or rayon.Additional strengthening can have some type structures as weaving, spiral, connect airtight or twining that are fit to, but is braiding structure in the embodiment illustrated.Further handle the adhesion that enhancement Layer promotes enhancement Layer and ectonexine with sizing material such as RFL type inorganic agent.
Elasticity outer cover 15 is made by the suitable material of the intrusion that is used to resist external environment condition.Shown in preferred embodiment in, outer cover 15 is made by rubber composition of the present invention.
Can imagine other embodiment, comprise hose construction with a plurality of enhancement Layers and a plurality of elastic layers.The one or more of elastic layer can comprise composite of the present invention.
Description of drawings
Fig. 1 is the scheme drawing of flexible pipe of the present invention.
The specific embodiment
The following examples are to introduce of the present inventionly, and do not play the qualification effect, if do not point out in addition, all parts by weight.
Example I
In this embodiment, the rubber composition and the rubber composition contrast that comprises EVM and Vamac G (it is the terpolymer of ethene, methyl acrylate and curing position monomer) blend that comprise EVM and ACM blend.It is as shown in table 2 that blend is made physical property by the composition shown in the table 1.
Table 1
Sample
Material
1
2
3
4
5
6
7
8
EVM(Levapren?600) 70 70 70 70 70 70 70 70
AEM(Vamac?G) 30 30 30 30 0 0 0 0
ACM 0 0 0 0 30 30 30 30
Carbon black N500 40 40 20 20 40 40 20 20
Carbon black N990 20 20 40 40 20 20 40 40
Bluestone 20 40 20 40 20 40 20 40
Silane coupling agent 0.5 1 0.5 1 0.5 1 0.5 1
Octyl group decyl amine 11111111
Calcium stearate 44444444
LMW polyethylene 11111111
50% poly-carbon diimide 33333333
Hydrogen quinoline 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Magnesium oxide (Maglite D) 50055005
(Dicup 88888888 for peroxide
40KE)
Cyanuric acid triallyl ester 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
Table 2
Sample
Character
1
2
3
4
5
6
7
8
Primitive character
Pulling strengrth (MPa) 14.9 15.9 14.6 14.9 12.7 13.0 11.4 11.3
Breaking elongation (%) 200 130 184 123 124 134 136 145
Xiao A hardness 85 86 79 85 79 84 76 82
Tear resistance (N/mm) 23.2 27.6 23.9 27.7 21.7 23.9 19.5 17.9
Compressive permanent set B, 70 hours 150 ℃
% is out of shape 37 38 40 39 33 27 37 33
Air aging, 70 hours 175 ℃
Pulling strengrth (MPa) 15.0 17.6 15.2 16.4 13.6 13.7 12.5 12.5
Breaking elongation (%) 118 78 116 122 124 88 164 119
Air aging, 168 hours 175 ℃
Pulling strengrth (MPa) 15.4 16 14.2 15.4 12.3 12.3 12.2 12.2
Breaking elongation (%) 97 67 94 74 79 57 110 85
Xiao A hardness 84 86 80 85 83 84 75 82
Immersion oil (IRM903), 168 hours 150 ℃
Pulling strengrth (MPa) 9.4 10.6 10.2 8.8 7.7 7.7 8.0 7.4
Breaking elongation (%) 102 91 127 73 88 72 119 82
Xiao A hardness 57 62 52 58 57 56 50 57
Cubic expansion (%) 60 52 58 55 54 46 52 47
Immersion oil (TOC), 168 hours 150 ℃
Pulling strengrth (MPa) 10.8 12.9 11.4 11.4 8.6 9.4 9.4 8.9
Breaking elongation (%) 128 105 154 99 113 104 147 126
Xiao A hardness 66 71 58 71 63 67 59 64
Cubic expansion (%) 27 23 26 26 24 21 22 22
Immersion oil (TOC), 168 hours 175 ℃
Pulling strengrth (MPa) 12.6 13.0 10.4 10.6 10.4 9.8 9.5 8.5
Breaking elongation (%) 80 101 141 76 118 127 166 120
Xiao A hardness 71 62 55 66 59 54 51 58
Cubic expansion (%) 30 30 33 30 27 25 27 26
Shown in the data in the table 2, EVM (Levapren 600HV) can with AEM and ACM blend production capacity in next life enough be controlled at temperature reach 175 the degree under air aging and the blend of immersion.The AEM blend can slightly improve pulling strengrth and modulus value, and the AEM blend improves anti-oily ability slightly when keeping elongation and compressive permanent set ability.
Example II
In this embodiment, the rubber composition that comprises EVM and ACM blend with comprise the rubber composition contrast that EVM does not contain ACM.Blend is made by following table 3A and the composition shown in the 3B.Physical property is shown in table 4A and 4B.
Table 3A
Sample
Material
9
10
11
12
13
14
15
16
EVM，Levapren?600HV
100 100 100 100 90 90 90 90
60% vinyl acetate
ACM，Nipol?AR72HF
Chlorine solidifies position 0000 10 10 10 10
N990 40 40 40 40 40 40 40 40
Armeen?18D 1 1 1 1 1 1 1 1
Calcium stearate 44444444
Low MW polyethylene 11111111
Poly-carbon diimide 30033003
TMQ 0.5 0 0 0.5 0.5 0 0 0.5
Irganox?1010，CIBA 0 2 2 0 0 2 2 0
DLTDP，Struktol 0 1 1 0 0 1 1 0
Magnesium oxide 02202002
Dicup?peroxide，265F
From causing 88888888
Cyanuric acid triallyl ester 2.5 0 2.5 0 2.5 0 2.5 0
SR521，sartomer 0 2 0 2 0 2 0 2
Table 3B
Sample
Material
17
18
19
20
21
22
23
24
EVM，Levapren 80 80 80 80 70 70 70 70
600HV，60％VA
ACM，Nipol?AR72HF
Chlorine solidifies position 20 20 20 20 30 30 30 30
N990 40 40 40 40 40 40 40 40
Armeen?18D 1 1 1 1 1 1 1 1
Calcium stearate 44444444
Low MW polyethylene 11111111
Poly-carbon diimide 03300330
TMQ 0 0.5 0.5 0 0 0.5 0.5 0
Irganox?1010，CIBA 2 0 0 2 2 0 0 2
DLTDP，Stmktol 1 0 0 1 1 0 0 1
Magnesium oxide 02202002
Dicup?peroxide
265F is from causing 88888888
Triallyl cyanurate 2.5 0 2.5 0 2.5 0 2.5 0
SR521，Sartomer 0 2 0 2 0 2 0 2
SR521-Sartomer difunctional acrylate co-reagent (exclusive)
The TMQ-trimethyldihydroquinoline
Irganox 1010-four [methene (3,5-two-tertiary butyl-4-hydroxy hydrogen cinnamate)] methane
The DLTDP-dilauryl thiodipropionate
Table 4A
Sample
Character
9
10
11
12
13
14
15
16
Primitive character
Pulling strengrth (MPa) 15.0 11.8 14.4 14.7 14.3 11.3 15.5 14.0
Breaking elongation (%) 177 408 193 269 160 383 173 246
Xiao A hardness 62 60 74 71 64 58 73 71
Tear resistance (N/mm) 16 29 23 33 16 23 23 28
Compressive permanent set B, 70 hours 150 ℃
% is out of shape 7 11 15 11 12 11 13 14
Air aging, 70 hours 175 ℃
Pulling strengrth (MPa) 14.6 11.8 15.6 13.4 13.8 12.1 15.0 13.6
Breaking elongation (%) 193 361 160 253 169 311 148 226
Xiao A hardness 67 62 77 75 66 60 76 75
Air aging, 168 hours 175 ℃
Pulling strengrth (MPa) 13.5 6.9 7.4 11.3 10.5 9.6 12.4 13.4
Breaking elongation (%) 171 136 51 146 110 164 87 168
Xiao A hardness 68 63 78 75 69 62 76 75
Immersion oil (IRM903), 168 hours 150 ℃
Pulling strengrth (MPa) 7.8 6.5 9.6 9.0 8.2 6.4 9.1 8.4
Breaking elongation (%) 115 259 130 187 116 238 119 166
Xiao A hardness 50 33 55 46 52 33 53 48
Cubic expansion (%) 69.6 91.2 63.43 73.73 60.62 80.97 61.56 65.37
Immersion oil (TOC), 168 hours 150 ℃
Pulling strengrth (MPa) 9.5 8.6 12.1 10.7 9.5 7.9 11.8 10.2
Breaking elongation (%) 155 373 186 245 152 324 178 224
Xiao A hardness 53 41 59 54 55 43 57 54
Cubic expansion (%) 35 39 31.9 35.3 30.1 35 29.6 30.7
Immersion oil (TOC), 168 hours 175 ℃
Pulling strengrth (MPa) 11.2 9.6 11.6 10.8 11.5 9.1 12.4 11.1
Breaking elongation (%) 203 426 212 258 178 328 193 234
Xiao A hardness 47 38 49 46 50 41 49 46
Cubic expansion (%) 38 45 39 40 34 41 33 35
Table 4B
Sample
Character
17
18
19
20
21
22
23
24
Primitive character
Pulling strengrth (MPa) 12.0 11.9 13.1 10.4 11.6 10.7 13.2 10.6
Breaking elongation (%) 210 288 157 373 226 320 142 311
Xiao A hardness 61 61 74 64 61 56 73 65
Tear resistance (N/mm) 17 21 20 31 14 17 17 25
Compressive permanent set B, 70 hours 150 ℃
% is out of shape 21 27 23 27 36 35 25 35
Air aging, 70 hours 175 ℃
Pulling strengrth (MPa) 12.9 11.3 12.8 11.0 11.5 10.2 13.6 11.1
Breaking elongation (%) 195 249 157 282 205 271 136 221
Xiao A hardness 62 60 76 69 64 59 76 72
Air aging, 168 hours 175 ℃
Pulling strengrth (MPa) 7.3 10.8 12.2 7.6 8.3 8.4 12.6 11.3
Breaking elongation (%) 92 195 116 102 100 169 98 131
Xiao A hardness 66 63 75 72 66 60 74 72
Immersion oil (IRM903), 168 hours 150 ℃
Pulling strengrth (MPa) 7.2 5.6 7.7 5.7 4.8 4.9 7.0 5.9
Breaking elongation (%) 150 176 112 245 129 197 97 195
Xiao A hardness 41 37 53 30 36 33 53 35
Cubic expansion (%) 65 68 58 82 69 70 51 71
Immersion oil (TOC), 168 hours 150 ℃
Pulling strengrth (MPa) 8.4 6.7 9.6 7.7 7.7 6.5 9.0 7.8
Breaking elongation (%) 204 223 142 339 202 248 128 272
Xiao A hardness 47 44 56 39 42 38 57 44
Cubic expansion (%) 30 31 30 34 33 31 25 33
Immersion oil (TOC), 168 hours 175 ℃
Pulling strengrth (MPa) 10.1 8.7 11.5 8.7 8.6 8.2 10.5 9.2
Breaking elongation (%) 247 257 166 388 210 287 148 277
Xiao A hardness 45 44 50 37 43 35 51 46
Cubic expansion (%) 35 35 33 40 34 34 27 35
In most of the cases, pulling strengrth reduces along with the increase of ACM amount, yet even under the content of 30phr, technical requirements is enough to this numerical value for representative type.Modulus numerical value also reduces slightly along with the increase of ACM.Compressive permanent set is subjected to the influence of ACM content significantly, because do not contain the composite average out to 11% of ACM, and contains those average out to 33% of 30phr.Cubic expansion all reduces along with the increase of ACM amount in IRM903 and TOC liquid.
The Tg that ACM adds the long-pending expandability of the antibody that raising is provided in the EVM blend to and reduces slightly, however other performance such as tensile strength and compressive permanent set are subjected to passive influence.ACM observes between these character in the scope of 10-20phr and reaches well balanced.
For introducing purpose of the present invention, show some representational embodiment and details, those skilled in the art should know under situation without departing from the spirit and scope of the present invention can make various variations.
Claims (14)
1. automotive hose is characterized in that at least one rubber layer comprises:
(A) EVM of about 95 weight portions of about 60-; With
(B) ACM of about 40 weight portions of about 5-.
2. flexible pipe as claimed in claim 1 is characterized in that described rubber layer comprises the EVM of about 90 weight portions of about 80-and the ACM of about 20 weight portions of about 10-.
3. flexible pipe as claimed in claim 1 is characterized in that described rubber layer comprises the EVM of about 90 weight portions of about 70-and the ACM of about 30 weight portions of about 10-.
4. automotive hose as claimed in claim 1 is characterized in that described EVM comprises the vinyl acetate of about 40-about 80%.
5. automotive hose as claimed in claim 1 is characterized in that described EVM comprises the vinyl acetate of about 50-about 70%.
6. automotive hose as claimed in claim 1 is characterized in that described ACM comprises one or more and is selected from acrylic acid C
1-C
8Arrcostab and acrylic acid C
2-C
8Alkoxy C
1-C
8Monomer in the Arrcostab.
7. automotive hose as claimed in claim 6 is characterized in that described ACM also comprises at least a curing position monomer.
8. automotive hose as claimed in claim 6 is characterized in that described ACM also comprises at least a halogen-containing curing position monomer that solidifies in position monomer, epoxy monomer and the carboxylate type curing position monomer that is selected from.
9. automotive hose as claimed in claim 7 is characterized in that described halogen-containing monomer is vinyl chloroacetate or 2-chloroethyl vinyl ether.
10. automotive hose as claimed in claim 1 is characterized in that described ACM is the copolymer that comprises ethyl acrylate, butyl acrylate, acrylic acid methoxy ethyl ester and solidify the position monomer.
11. automotive hose as claimed in claim 1 is characterized in that described rubber composition also comprises the carbon black of the about 120phr of about 10-.
12. automotive hose as claimed in claim 1 is characterized in that described rubber composition also comprises the carbon black of the about 90phr of about 35-.
13. automotive hose as claimed in claim 1 is characterized in that composite is the composite of peroxide cure.
14. automotive hose as claimed in claim 1, it is characterized in that described fluoropolymer resin comprises about 90 parts EVM of about 70-and the about 10 parts ACM of about 30-, described EVM comprises the vinyl acetate of the about 70wt% of about 50-, and described ACM comprises ethyl acrylate, butyl acrylate, acrylic acid methoxy ethyl ester and solidifies the position monomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200310100612XA CN1496901A (en) | 2002-10-09 | 2003-10-09 | Hose structure containing polymer composition |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60/417317 | 2002-10-09 | ||
| CNA200310100612XA CN1496901A (en) | 2002-10-09 | 2003-10-09 | Hose structure containing polymer composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1496901A true CN1496901A (en) | 2004-05-19 |
Family
ID=34256281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200310100612XA Pending CN1496901A (en) | 2002-10-09 | 2003-10-09 | Hose structure containing polymer composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1496901A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112812412A (en) * | 2020-12-30 | 2021-05-18 | 北京天元奥特橡塑有限公司 | EVM, ACM, AEM and CM blended composite rubber tube and preparation method thereof |
-
2003
- 2003-10-09 CN CNA200310100612XA patent/CN1496901A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112812412A (en) * | 2020-12-30 | 2021-05-18 | 北京天元奥特橡塑有限公司 | EVM, ACM, AEM and CM blended composite rubber tube and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1203984C (en) | Sulfurized elastomer tube containing EVOH and polyamide leak-proof layer | |
| CN1061065C (en) | Abrasion-resistant flame-retardant composition | |
| JP3920894B2 (en) | Composition for improving adhesion of elastomer to polymer composition and laminated structure comprising layers of the composition | |
| CN1219816C (en) | Isotactic polypropylene and composition with graft isotactic polypropylene as main ingredient | |
| CN1534228A (en) | Multi-layer hose | |
| CN1162606A (en) | Adhesive polyethylene compositions and multi-layer laminated films using the same | |
| CN1134164A (en) | Thermoplastic resin composition and laminate made therefrom | |
| CN1433883A (en) | Conductive multilayer gasoline conveying pipe based on polymeric amide and EVOH | |
| CN1643055A (en) | Olefinic thermoplastic elastomer and moldings thereof | |
| CN1161412C (en) | Polypropylene graft copolymers with improved scratch and mar resistance | |
| CN1822793A (en) | Sealed vessel and vacuum specimen collection vessel | |
| CN1803908A (en) | Polypropylene plastic and preparation process thereof | |
| US8791180B2 (en) | Process for production of a heat-stabilized acrylate polymer | |
| CN1637065A (en) | Oil resistant and weather resistant rubber composition and molded product using the same | |
| CN1175052C (en) | Thermoplastic resin formed article having high-rigidity and high-strength | |
| CN1320200A (en) | Tube for gasoline transport | |
| CN1170878C (en) | Polypropylene composition for hot water pipe and its prepn | |
| CN1255275C (en) | Multilayer structure based on polyamide and copolyamide mixed binder | |
| CN1366491A (en) | Co-extruded multi-layer tubing made from polyamide and olefin polymer material | |
| CN1340671A (en) | Manufacture method for fuel hose and its used ultraviolet interlinking composition | |
| CN1761710A (en) | Irradiated, oxidized olefin polymer coupling agents | |
| CN1258567C (en) | Polyamide thermoplastic compsns. with improved impact strength properties | |
| CN1496901A (en) | Hose structure containing polymer composition | |
| CN100339434C (en) | Flame-retardant rubber composition, rubber articles and wire covering materials | |
| JP3543810B2 (en) | Oil-resistant thermoplastic elastomer composition and molded article |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |