CN102863650A - Rubber compound peptizer and preparation method thereof - Google Patents
Rubber compound peptizer and preparation method thereof Download PDFInfo
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- CN102863650A CN102863650A CN2012103784331A CN201210378433A CN102863650A CN 102863650 A CN102863650 A CN 102863650A CN 2012103784331 A CN2012103784331 A CN 2012103784331A CN 201210378433 A CN201210378433 A CN 201210378433A CN 102863650 A CN102863650 A CN 102863650A
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- rubber
- peptizer
- mercaptobenzothiazole
- rubber combined
- mooney viscosity
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 97
- 239000005060 rubber Substances 0.000 title claims abstract description 97
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 150000001875 compounds Chemical class 0.000 title abstract description 13
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims abstract description 73
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 14
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 38
- 229940075507 glyceryl monostearate Drugs 0.000 claims description 19
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 claims description 19
- -1 Glycerin fatty acid ester Chemical class 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 10
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 10
- 229930195729 fatty acid Natural products 0.000 claims description 10
- 239000000194 fatty acid Substances 0.000 claims description 10
- 235000011187 glycerol Nutrition 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 8
- 239000012467 final product Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 21
- 239000000126 substance Substances 0.000 abstract description 16
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 239000004636 vulcanized rubber Substances 0.000 abstract description 5
- 239000006229 carbon black Substances 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 230000003712 anti-aging effect Effects 0.000 abstract description 2
- 159000000032 aromatic acids Chemical class 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 238000004132 cross linking Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 125000005456 glyceride group Chemical group 0.000 abstract 1
- 238000001935 peptisation Methods 0.000 abstract 1
- 238000010074 rubber mixing Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 24
- 239000004033 plastic Substances 0.000 description 10
- 244000043261 Hevea brasiliensis Species 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 229920003052 natural elastomer Polymers 0.000 description 8
- 229920001194 natural rubber Polymers 0.000 description 8
- 238000009628 steelmaking Methods 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 238000004513 sizing Methods 0.000 description 6
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- GUUVPOWQJOLRAS-UHFFFAOYSA-N diphenyl disulphide Natural products C=1C=CC=CC=1SSC1=CC=CC=C1 GUUVPOWQJOLRAS-UHFFFAOYSA-N 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000010077 mastication Methods 0.000 description 3
- 230000018984 mastication Effects 0.000 description 3
- RMVRSNDYEFQCLF-UHFFFAOYSA-N thiophenol Chemical compound SC1=CC=CC=C1 RMVRSNDYEFQCLF-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001206 natural gum Polymers 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010057 rubber processing Methods 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a rubber compound peptizer. The rubber compound peptizer comprises, by weight, 20% to 25% of mercaptobenzothiazole, 40% to 50% of aromatic acids and the balance fatty glyceride, wherein the weight ratio between the mercaptobenzothiazole and the aromatic acid is 1:2. The invention further discloses a preparation method of the rubber compound peptizer. According to the rubber compound peptizer, high physical plasticizing and chemical peptization effects on the rubber can be achieved through synergistic effect of all components, the mooney viscosity of the rubber can be remarkably reduced, the plasticity of rubber materials is improved, the uniform dispersion of carbon black and other compounding agents in the rubber materials during rubber mixing can be improved, the crosslinking density of vulcanized rubber and thermostability of a cross bond are improved, and physical and mechanical properties and anti-aging performance of the vulcanized rubber are increased.
Description
Technical field
The invention belongs to field of material engineering technology, be specifically related to a kind of rubber combined peptizer and preparation method thereof.
Background technology
Solid rubber is processed into before the rubber item, must plasticate, this is that particularly the natural rubber molecular weight is high because of rubber, high resilience, cause the interpolation of required other auxiliary agents to mix all very difficult, let alone homogeneity, thus without the rubber of plasticating particularly natural rubber to be difficult to direct machine-shaping be the rubber item that use value is arranged.The purpose of plasticating namely makes the rubber molecular chain fracture with mechanical shear stress, thereby molecular weight is reduced, make rubber change plastic state into by elastic stage, increase the plasticity-of rubber, be convenient to the further mixed refining process such as rubber and other auxiliary agent materials, weighting agent, strengthening agent.Physical method is namely realized plasticating by extruding, method broken, that shear with powerful machinery, and its time of plasticating is long, and energy consumption is large, labour productivity is low.Peptizer comes the Reinforced Rubber effect of plasticating by chemical action, shortens the time of plasticating, has improved labor productivity greatly, has reduced energy consumption.So peptizer is in modern rubber industry, particularly tire industry is used widely.Desirable peptizer should have the good solution effect of moulding, and the vulcanization of rubber without impact, is not reduced the physical property of vulcanized rubber, is applicable to modern rubber processing means, and is nontoxic, pollution-free, consumption is few, effect is strong, the processing temperature wide ranges of adaptation.On the market at present main rubber peptizer aromatic series thiophenols and aromatic disulfides and aromatic series thiophenols and aromatic series curing are arranged is the compound peptizer that principal constituent adds metal complex.Although aromatic series thiophenol and its result of use of aromatic series thiophenols metal-salt peptizer are obvious, the processing temperature scope that adapts to is wider, but because it is chlorine-containing compound, to use or produce all can produce severe contamination to environment, more may have carinogenicity owing to finding it, the developed countries such as European Union, the U.S., Japan have prohibited use at present, and China has also listed it in the chemical list that use is eliminated in restriction.It mainly is DBD(chemical name 2 that aromatic disulfides is often used such peptizer at present; 2;-dibenzoyl Diphenyl disulfide compound); this product is used for hot mastication (120 ℃ and more than) successful; but at cold plastication (80 ℃ and following) without positive effect; and Costco Wholesale is high, applies to be subject to certain restriction.The mercaptobenzothiazole compounds has good chemistry to rubber and moulds the solution effect, but it is again a kind of thiofide simultaneously, thereby it is directly used in rubber plastic steelmaking, particularly under the condition of high temperature, and easily cause the sizing material incipient scorch, thereby use never is promoted as peptizer.Compounded rubber peptizer of the present invention is researched and developed under this technical background.
Along with country requires more and more higher to energy-conserving and environment-protective, rubber industry particularly tyre industry is the enterprise of high energy consumption type, tyre industry needs energy saving and environment friendly peptizer, and his exploitation is bound to can be to rubber industry, and particularly strong pushing effect is played in the energy-conserving and environment-protective work of tyre industry.
Summary of the invention
Technical problem to be solved by this invention provides a kind of rubber combined peptizer of moulding very by force the solution effect that all has under high temperature and cold condition.
The technical problem that the present invention also will solve provides the preparation method of above-mentioned rubber combined peptizer.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of rubber combined peptizer, it comprises the component of following weight percent:
Mercaptobenzothiazole 20 ~ 25%;
Aromatic acid 40 ~ 50%;
Glycerin fatty acid ester complements to 100%;
Wherein, the weight ratio of mercaptobenzothiazole and aromatic acid is 1:2.
Wherein, described mercaptobenzothiazole is 2-mercaptobenzothiazole.
Wherein, described aromatic acid is phenylformic acid.
Wherein, described glycerin fatty acid ester is glyceryl monostearate.Should (be glyceryl monostearate?)
The first preparation method of above-mentioned rubber combined peptizer mixes mercaptobenzothiazole, aromatic acid and the glycerin fatty acid ester of formula ratio and gets final product.Above-mentioned mercaptobenzothiazole, aromatic acid and glycerin fatty acid ester can directly be bought from the market.
The second preparation method of above-mentioned rubber combined peptizer; glycerin fatty acid ester is added first in the reactor while stirring heat fused; then be warming up to 100 ~ 110 ℃, will add rapidly in the aromatic acid 5 minutes, temperature is controlled at 100 ~ 120 ℃ until the phenylformic acid fusing; at last mercaptobenzothiazole is added; continue to stir, temperature remains on 100 ~ 125 ℃ until molten state material mixing, the blowing drippage; through the granulation of convolution condensation granulator, and get final product.
The method of calculation that 2-mercaptobenzothiazole, phenylformic acid, glyceryl monostearate add are as follows: the weight percent by each component is recently calculated charging capacity.
For example total charging capacity is 500Kg, and 2-mercaptobenzothiazole is 25%, phenylformic acid is 50%, glyceryl monostearate is 25%:
2-mercaptobenzothiazole charging capacity=500Kg * 0.25=125Kg;
Phenylformic acid=500Kg * 0.5=250Kg;
Glyceryl monostearate=500Kg * 0.25=125Kg.
For example total charging capacity is 500Kg, and 2-mercaptobenzothiazole is 23%, phenylformic acid is 46%, glyceryl monostearate is 31%:
2-mercaptobenzothiazole charging capacity=500Kg * 0.23=115Kg;
Phenylformic acid=500Kg * 0.46=230Kg;
Glyceryl monostearate=500Kg * 0.31=155Kg.
The action principle of rubber combined its design of peptizer of the present invention is: utilize the component that rubber is had certain physics plasticising and interior lubrication, to have chemistry and mould the solution function, 2-mercaptobenzothiazole component with the sulfur-containing radicals structure is fully dissolved in the rubber, after 2-mercaptobenzothiazole is heated under the high temperature, under the effect of oxygen, sulfydryl (sulfur-containing radicals) and the rubber molecule generation hydrogen abstraction reaction of decomposing, accelerate to have caused rubber molecular chain generation oxidative degradation, reach the purpose of quick rubber plastic steelmaking.Under the cold condition, the rubber molecule splitting of chain occurs in rubber under the effect of mechanical shear stress, the sulfur-containing radicals of 2-mercaptobenzimidazole can be sealed the rubber molecular chain end group of fracture when plasticating very soon, it is lost activity, stop it again to tie poly-, thereby reach the purpose of rubber plastic steelmaking.And the aromatic acid in the component has good anti-incipient scorch function and physics plasticising function in mixing process, can assist 2-mercaptobenzothiazole to dissolve in rapidly in the rubber, thereby the good chemistry of 2-mercaptobenzothiazole being moulded separate function is able to fast effectively performance, and the establishment 2-mercaptobenzothiazole may cause the incipient scorch of sizing material under high-temperature condition again simultaneously.
Beneficial effect: rubber combined peptizer of the present invention has following advantage:
1. rubber combined peptizer of the present invention is by the synergy between each component, and its action effect obviously is better than single component chemistry peptizer.Confirm through test, phenylformic acid in the component of the present invention and glyceryl monostearate have certain softening and physics plasticising function for rubber, glyceryl monostearate is dissolved in rubber and has good interior lubrication, make and rubber is had chemistry mould and separate performance with very fast the dissolving in the sizing material of the 2-mercaptobenzothiazole of sulfur-containing radicals structure, it is moulded the solution effect and is able to better performance, both synergies, thus Effective Raise the performance of peptizer.
Low-temperature test: take by weighing respectively with batch 4 parts of natural rubbers; every part of 100g; wherein 1 part of conduct is blank; 3 parts of 3 kinds of different peptizers of 1% that add respectively rubber quality in addition; add chemical peptizer DBD(chemical name 2 in namely distinguishing; 2;-dibenzoyl Diphenyl disulfide compound); each 1g of the compound peptizer of 2-mercaptobenzimidazole and the present invention; under equal processing condition, carry out cold plastication through mill (80 ℃); then do the mooney viscosity test of broken-(down)rubber; and with blank contrast, blank Mooney viscosity value is 56, the Mooney viscosity value that adds the compound peptizer of the present invention is 46; 10 Mooney viscosity values have been reduced; and adding chemical peptizer DBD and the 2-mercaptobenzimidazole Mooney viscosity value all is 55, it is to weigh the plastic characteristic parameter of rubber that 1 Mooney viscosity value that only descended, Mooney viscosity value descend; Mooney viscosity value is lower; the plasticity-of rubber is just better, also is an index of rubber plastic steelmaking complete processing, thereby has also reflected the effect of rubber plastic steelmaking.Can illustrate that too peptizer is for the effect of rubber plastic steelmaking.On testing data, also reflect synergistic effect between each component of compounded rubber peptizer of the present invention.
High temperature test 1: take by weighing respectively with batch 3 parts of natural rubbers; wherein 1 part of conduct is blank; 2 parts of 2 kinds of different peptizers that add respectively rubber quality 1% in addition; add chemical peptizer DBD(chemical name 2 in namely distinguishing; 2;-dibenzoyl Diphenyl disulfide compound) and each 1g of the compound peptizer of the present invention; plasticate under 120 ℃ of same process conditions through Banbury mixer; then do the mooney viscosity test of broken-(down)rubber; and with blank contrast, blank Mooney viscosity value is 72, the Mooney viscosity value that adds the rubber combined peptizer of the present invention is 35; the Mooney viscosity value that adds chemical peptizer DBD is 34, and Mooney viscosity value all obviously descends.
High temperature test (equal size test) 2: in the 1000g natural rubber, add the compound peptizer 10g(of the present invention and contain 2-mercaptobenzothiazole 25%), take by weighing respectively in addition with batch 2 parts of natural rubber, every part of 1000g, add DBD content 25% Powdered chemical peptizer (DBD+ white carbon black) 10g in 1 part, add content 25% Powdered 2-mercaptobenzothiazole 10g(2-mercaptobenzothiazole+white carbon black in 1 part), plasticate under 120 ℃ of same process conditions through Banbury mixer, then do the mooney viscosity test of broken-(down)rubber, the broken-(down)rubber Mooney viscosity value that adds the rubber combined peptizer of the present invention is 35, and the Mooney viscosity value that adds the broken-(down)rubber of chemical peptizer DBD is 42, and the Mooney viscosity value that adds the broken-(down)rubber of 2-mercaptobenzothiazole is 43.Mooney viscosity value all has in various degree and to reduce, and the broken-(down)rubber Mooney viscosity value that adds the rubber combined peptizer of the present invention has reduced more.
The Mooney viscosity value that detects sizing material behind hot mastication all occurs obviously descending with blank contrast, use in the compound peptizer of invention and the peptizer DBD situation in equivalent, the Mooney viscosity value that adds the sizing material of peptizer of the present invention is 35, the Mooney viscosity value that adds DBD is 34, reduced respectively 37 and 38 Mooney viscosity values than 72 of blank, plasticity-is obviously improved.In the equal size test, two contrast glue are compared with blank in addition, low respectively 30 and 29 Mooney viscosity values, obvious reduction is all arranged, but the rubber combined peptizer of the present invention and single component chemistry peptizer ratio, Mooney viscosity value has descended 37, and this explanation the present invention rubber combined peptizer and single component chemistry peptizer ratio mould that to separate performance stronger.The presentation of results of above two high temperature test compounded rubber peptizer of the present invention have good high temperature and mould the solution function, also reflect between each component under hot conditions to have a synergistic action effect with the same under the cold condition simultaneously.The mooney viscosity drop-out value is to weigh the characteristic index of rubber plastic solution effect.It is larger that Mooney viscosity value descends, and illustrate to mould solution effect is unreasonable to think.So no matter compounded rubber peptizer of the present invention is cold condition or hot conditions, all has the good effect of plasticating.And only have the good solution effect of moulding when the hot mastication such as the chemical peptizer DBD of single component etc.But then according to rubber item physical property and production process, and Mooney viscosity value is controlled at certain limit in the practical application.
2. because phenylformic acid has ramollescence to rubber, and glyceryl monostearate has good interior lubrication, except brought into play between the component synergy in the process of plasticating; The heat of giving birth to of rubber plastic steelmaking process be can alleviate, incipient scorch, particularly natural rubber when rubber high temperature refining glue, occurred thereby reach establishment.(namely shifting to an earlier date vulcanization reaction)
3.2-mercaptobenzothiazole is a kind of thiofide, thereby can promote the formation of the cross-link bond of vulcanized rubber again when the vulcanization of rubber, thereby plays physical and mechanical properties effect and the ageing resistance that improves cross-linked rubber.Overcome the detrimentally affect of peptizer to rubber vulcanization system and cured properties generation.
Embodiment
According to following embodiment, the present invention may be better understood.Yet, those skilled in the art will readily understand, the described content of embodiment only is used for explanation the present invention, and should also can not limit the present invention described in detail in claims.
Embodiment 1:
Preparation 500Kg, 2-mercaptobenzimidazole is 25%, phenylformic acid is 50%, glyceryl monostearate is 25%:
2-mercaptobenzimidazole charging capacity=500Kg * 0.25=125Kg;
Phenylformic acid=500Kg * 0.5=250Kg;
Glyceryl monostearate=500Kg * 0.25=125Kg.
Take by weighing the 125Kg glyceryl monostearate and add first in the reactor while stirring heat fused, then be warming up to 100-110 ℃, in 5 minutes phenylformic acid 250Kg is added rapidly again; keep temperature to be controlled between 100-120 ℃, cover kettle cover, until phenylformic acid all melts; at last with the disposable adding of 125Kg2-mercaptobenzothiazole; continue to stir, temperature remains on 100 ~ 120 ℃, approximately 5-10 minute; until material mixing; blowing through the granulation of convolution condensation granulator, and get final product.
Embodiment 2:
Total charging capacity is 500Kg, and 2-mercaptobenzothiazole is 23%, phenylformic acid is 46%, glyceryl monostearate is 31%:
2-mercaptobenzothiazole charging capacity=500Kg * 0.23=115Kg;
Phenylformic acid=500Kg * 0.46=230Kg;
Glyceryl monostearate=500Kg * 0.31=155Kg;
Take by weighing the 155Kg glyceryl monostearate and add first in the reactor while stirring heat fused, then be warming up to 100-110 ℃, in 5 minutes phenylformic acid 230Kg is added rapidly again; keep temperature to be controlled between 100-120 ℃, cover kettle cover, until phenylformic acid all melts; at last with the disposable adding of 115Kg2-mercaptobenzothiazole; continue to stir, temperature remains on 100-120 ℃, approximately 5-10 minute; until material mixing; blowing through the granulation of convolution condensation granulator, and get final product.
Embodiment 3:
Total charging capacity is 500Kg, and 2-mercaptobenzothiazole is 20%, phenylformic acid is 40%, glyceryl monostearate is 40%:
2-mercaptobenzothiazole charging capacity=500Kg * 0.20=100Kg;
Phenylformic acid=500Kg * 0.40=200Kg;
Glyceryl monostearate=500Kg * 0.40=200Kg;
Mercaptobenzothiazole, aromatic acid and the glycerin fatty acid ester of formula ratio mixed get final product.
Embodiment 4:
Take the rubber combined peptizer of embodiment 1 preparation as detected object, carry out moulding of product of the present invention and separate performance and other quantitative measurements of cross-linked rubber, and the performance of chemical peptizer DBD and blank simultaneous test compare:
1. the plasticity test prescription sees Table 1.
Table 1
| The starting material title | Blank | Test recipe | Comparative formula |
| Natural rubber | 300g | 300g | 300g |
| Peptizer of the present invention | 3g | ||
| Peptizer DBD | 3g |
Test-results sees Table 2.
Table 2
From table 2 data declaration, the rubber combined peptizer of the present invention (AT-HS) all has at high temperature (120 ℃) and low temperature (80 ℃) and significantly to mould the solution effect.
2. mechanical property of vulcanized rubber impact test sees Table 3.
Table 3 test recipe content *
Annotate: the * data unit is part (take one of the percentage of rubber quality as 1 part)
2, starting material
Starting material in the table 3 are tire industry starting material commonly used.
1 natural gum: Malaysian import;
The import of 2 stearic acid (1801) Indonesia;
3 zinc oxide (indirect method) content, 99.5% Anhui contains mountain zinc oxide factory;
The holy chemical industry difficult to understand in 4 anti-aging agent (4020) Jiangsu;
5 vulcanizing agents (IS7520) Wuxi qian bridge rubber ingredients factory;
6 companies of chemical peptizer DBD Wuhan Jinghe Chemical Co., Ltd;
The europeanized worker of 7 compounded rubber peptizer of the present invention (AT-HS) Jiangsu cards company limited.
3, key instrument and equipment
4, on the cured properties impact, the cured properties test result sees Table 4.
Table 4
Show from above-mentioned table 4 test data, the sizing material through plasticating with the rubber combined peptizer of the present invention and DBD peptizer carries out the cured properties contrast test, with the blank contrast, becomes the T of instrument test from sulphur
10/ min plays sulphur time and T
90/ min sulfurizing time is without large difference, and compounded rubber peptizer of the present invention illustrates not impact to the vulcanization process of rubber.Analyze from mechanical properties of rubber compound test data and ageing resistance data, substantially without large difference, this reflects that the performance to cross-linked rubber does not produce detrimentally affect yet.
Claims (6)
1. a rubber combined peptizer is characterized in that, it comprises the component of following weight percent:
Mercaptobenzothiazole 20 ~ 25%;
Aromatic acid 40 ~ 50%;
Glycerin fatty acid ester complements to 100%;
Wherein, the weight ratio of mercaptobenzothiazole and aromatic acid is 1:2.
2. rubber combined peptizer according to claim 1 is characterized in that, described mercaptobenzothiazole is 2-mercaptobenzothiazole.
3. rubber combined peptizer according to claim 1 is characterized in that, described aromatic acid is phenylformic acid.
4. rubber combined peptizer according to claim 1 is characterized in that, described glycerin fatty acid ester is glyceryl monostearate.
5. the preparation method of rubber combined peptizer claimed in claim 1 is characterized in that, mercaptobenzothiazole, aromatic acid and the glycerin fatty acid ester of formula ratio is mixed get final product.
6. the preparation method of rubber combined peptizer claimed in claim 1; it is characterized in that, glycerin fatty acid ester is added first in the reactor while stirring heat fused, then be warming up to 100 ~ 110 ℃; to add rapidly in the aromatic acid 5 minutes again; temperature is controlled at 100 ~ 120 ℃ until the phenylformic acid fusing adds mercaptobenzothiazole at last, continues to stir; temperature remains on 100 ~ 125 ℃ until molten state material mixing; the blowing drippage through the granulation of convolution condensation granulator, and get final product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210378433.1A CN102863650B (en) | 2012-10-08 | 2012-10-08 | Rubber compound peptizer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210378433.1A CN102863650B (en) | 2012-10-08 | 2012-10-08 | Rubber compound peptizer and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102863650A true CN102863650A (en) | 2013-01-09 |
| CN102863650B CN102863650B (en) | 2014-01-29 |
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| CN201210378433.1A Active CN102863650B (en) | 2012-10-08 | 2012-10-08 | Rubber compound peptizer and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360622A (en) * | 2013-08-01 | 2013-10-23 | 江苏卡欧化工有限公司 | Rubber heat-resistant activator and preparation method thereof |
| CN113358441A (en) * | 2021-06-29 | 2021-09-07 | 福州大学 | Standard rubber sample for measuring 2-mercaptobenzothiazole and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10179479B2 (en) | 2015-05-19 | 2019-01-15 | Bridgestone Americas Tire Operations, Llc | Plant oil-containing rubber compositions, tread thereof and race tires containing the tread |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531777A (en) * | 2009-03-31 | 2009-09-16 | 浙江巍翔科技有限公司 | Rubber peptizer |
| CN102190812A (en) * | 2010-03-06 | 2011-09-21 | 徐州工业职业技术学院 | Preparation method for environmental-friendly reclaimed rubber |
| CN102304074A (en) * | 2011-06-21 | 2012-01-04 | 聊城大学 | Method for preparing rubber peptizing agent, namely 2,2'-dibenzamido diphenyl disulfide compound |
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2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531777A (en) * | 2009-03-31 | 2009-09-16 | 浙江巍翔科技有限公司 | Rubber peptizer |
| CN102190812A (en) * | 2010-03-06 | 2011-09-21 | 徐州工业职业技术学院 | Preparation method for environmental-friendly reclaimed rubber |
| CN102304074A (en) * | 2011-06-21 | 2012-01-04 | 聊城大学 | Method for preparing rubber peptizing agent, namely 2,2'-dibenzamido diphenyl disulfide compound |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360622A (en) * | 2013-08-01 | 2013-10-23 | 江苏卡欧化工有限公司 | Rubber heat-resistant activator and preparation method thereof |
| CN103360622B (en) * | 2013-08-01 | 2015-04-22 | 江苏卡欧化工有限公司 | Rubber heat-resistant activator and preparation method thereof |
| CN113358441A (en) * | 2021-06-29 | 2021-09-07 | 福州大学 | Standard rubber sample for measuring 2-mercaptobenzothiazole and preparation method thereof |
| CN113358441B (en) * | 2021-06-29 | 2024-04-12 | 福州大学 | Standard rubber sample for measuring 2-mercaptobenzothiazole and preparation method thereof |
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| CN102863650B (en) | 2014-01-29 |
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