CN105690587A - Wet-process rubber mixing method comprising steps of atomizing and mixing sequentially - Google Patents
Wet-process rubber mixing method comprising steps of atomizing and mixing sequentially Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 98
- 238000002156 mixing Methods 0.000 title claims abstract description 62
- 238000010074 rubber mixing Methods 0.000 title abstract 4
- 229920001971 elastomer Polymers 0.000 claims abstract description 54
- 239000005060 rubber Substances 0.000 claims abstract description 52
- 238000013329 compounding Methods 0.000 claims abstract description 40
- 229920000126 latex Polymers 0.000 claims abstract description 26
- 239000000945 filler Substances 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000006185 dispersion Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 239000004816 latex Substances 0.000 claims description 24
- 238000000889 atomisation Methods 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000004615 ingredient Substances 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 13
- 239000006229 carbon black Substances 0.000 claims description 11
- 230000018044 dehydration Effects 0.000 claims description 9
- 238000006297 dehydration reaction Methods 0.000 claims description 9
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- -1 age resistor Substances 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- 239000000975 dye Substances 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 239000012760 heat stabilizer Substances 0.000 claims description 3
- 239000004611 light stabiliser Substances 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000001112 coagulating effect Effects 0.000 abstract 3
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000012153 distilled water Substances 0.000 description 9
- 238000000227 grinding Methods 0.000 description 9
- 239000011521 glass Substances 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 5
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 5
- 244000043261 Hevea brasiliensis Species 0.000 description 5
- 235000021355 Stearic acid Nutrition 0.000 description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 5
- 239000008117 stearic acid Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229920003052 natural elastomer Polymers 0.000 description 4
- 229920001194 natural rubber Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241001122126 Carex secta Species 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
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- 238000009792 diffusion process Methods 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- LIMFPAAAIVQRRD-BCGVJQADSA-N N-[2-[(3S,4R)-3-fluoro-4-methoxypiperidin-1-yl]pyrimidin-4-yl]-8-[(2R,3S)-2-methyl-3-(methylsulfonylmethyl)azetidin-1-yl]-5-propan-2-ylisoquinolin-3-amine Chemical compound F[C@H]1CN(CC[C@H]1OC)C1=NC=CC(=N1)NC=1N=CC2=C(C=CC(=C2C=1)C(C)C)N1[C@@H]([C@H](C1)CS(=O)(=O)C)C LIMFPAAAIVQRRD-BCGVJQADSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
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- 238000003801 milling Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
- B29B7/283—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring data of the driving system, e.g. torque, speed, power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/728—Measuring data of the driving system, e.g. torque, speed, power, vibration
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a wet-process rubber mixing method comprising the steps of atomizing and mixing sequentially. The wet-process rubber mixing method comprises the following steps: preparing solutions: preparing respective aqueous dispersion solutions from rubber latex, fillers and compounding agents in a formula; atomizing: uniformly atomizing the prepared solutions; diffusing: enabling the atomized materials to diffuse, contact and mix in a mixing chamber; coagulating: coagulating the mixed materials on the inner wall of the mixing chamber; collecting: collecting the liquids, formed after coagulating and flowing out from the inner wall of the mixing chamber, to obtain a rubber mixture; and stirring and completing the wet-process mixing of rubber. The wet-process rubber mixing method has the beneficial effects that the solutions are prepared from the corresponding materials, after atomized, the solutions enter the mixing chamber to diffuse, contact and mix to complete the wet-process mixing so as to achieve the mixing effect, the atomized solutions are coagulated , collected and then are mixed, so as to further improve the wet-process mixing effect, improve the operating environment and save energy sources, and besides, the processing technology is simple, the device investment is small, and the industrial production can be realized.
Description
Technical field
The present invention relates to rubber mixing-milling technique, it particularly relates to one is first atomized decomposite rubber wet method compounding process。
Background technology
For a long time, the raw material that rubber industry uses is always up a kind of niggerhead, this niggerhead makes troubles not only to carrying and dispensing, also need to the weighing that is cut into small pieces, when mixing, also to consume very big power simultaneously and could be pulverized, mix, it is therefore desirable to heavy rubber preparing device, not only consume power big, and white carbon black not easily disperses, often, the cycle is long for refining glue。Additionally, what rubber tree produced is the latex of liquid, by latex coagulation, the dry rubber preparing into bulk, not only operation is numerous and diverse, the cycle is long, but also need to consume substantial amounts of human and material resources, wastes a lot of energy。
For niggerhead various shortcoming time mixing, wet method mixing technology arises at the historic moment。Wet method mixing technology refers to makes aqueous dispersion by fillers such as the white carbon black through processing in advance, white carbons, is sufficiently mixed with rubber latex in the liquid state, produces rubber mixed method then through cohesion, dehydration, the process such as dry。With traditional that dry glue and the compounding ingredient such as white carbon black, white carbon are carried out multistage dry method in banbury is mixing entirely different。The maximum advantage of wet method mixing technology is exactly filler good dispersion, the physical and mechanical properties of vulcanizate is good, what can be prevented effectively from powder stuffing flies upward pollution, it is beneficial to environmental protection, good mixing effect with other compounding ingredient, process very convenient, mixing energy consumption and the cost of rubber can be significantly reduced, and be conducive to the realization of continuous mixing technique。
Disclosed in Chinese patent CN1280534, Continuous Liquid Phase calendering process produces natural rubber and carbon black filler masterbatch technique, its technical characteristic is dustless carbon black filler water slurry is under high pressure formed jet join in the coagulum reactor mixed with latex, purpose is strongly enough to be mixed with carbon black filler water slurry by elastomer precursor gum milk flow, white carbon black particulate filler and elastomer was made substantially completely to condense before discharge end, dehydration, the dried prepared material being called CEC。
The preparation method of the mixing natural rubber sizing material of wet method disclosed in Chinese Patent Application No. 201110064299., its concrete technical scheme is, the white carbon slurry anticipated by long agitation and the mixed liquor of Heveatex are then through the glue that flocculates, washes, dehydration and dry prepared white carbon masterbatch afterwards, the method preparation section time is oversize, is unfavorable for that actual processization produces。
For the problem in correlation technique, effective solution is not yet proposed at present。
Summary of the invention
It is an object of the invention to provide one and be first atomized decomposite rubber wet method compounding process, to overcome currently available technology above shortcomings。
It is an object of the invention to be achieved through the following technical solutions:
One is first atomized decomposite rubber wet method compounding process, comprises the following steps:
S1 liquid: the latex in formula, filler, compounding ingredient are prepared respective aqueous dispersion solution respectively；
S2 is atomized: by the various solution uniform atomizings of configuration, atomization process parameter, atomizing pressure 0.5-3MPa, liquid stream diameter 1.0-3.0mm, atomization speed 0.67-20g/s, spray angle 60-120 °；
S3 spreads: each material after atomization is diffused at mixing chamber, contacts, mixes；
S4 condenses: the material of mixing condenses at the inwall of mixing chamber；
S5 collects: the liquid after cohesion flows out along mixing chamber inwall, collects and obtains rubber composition；
S6 stirs: described rubber composition is stirred, stirring technique parameter, mixing speed 100-500rpm, mixing time 1-10min；
S7 dries: the mixture after stirring is flocculated, washes glue and dehydration acquisition rubber masterbatch。
Further, the latex solution in described S1 step, filler solution, compounding ingredient solution, vulcanizing system solution are the solution of single solute。
Further, the latex in described S1 step includes one or more in Heveatex and synthetic latex。
Further, in described latex solution, rubber concentration range in the solution is 18% weight to 22% weight。
Further, the filler in described S1 step includes one or more in white carbon black, white carbon。
Further, in described filler solution, the concentration range in the solution of filler is 18% weight to 22% weight。
Further, the compounding ingredient in described S1 step include antioxidant, age resistor, coupling agent, activating agent, fire retardant, heat stabilizer, light stabilizer, dyestuff, pigment, accelerator one or more。
Further, in described compounding ingredient solution, the concentration range in the solution of compounding ingredient is 3% weight to 22% weight。
The invention have the benefit that by material being prepared respectively various solution, enter mixing chamber after atomization and complete diffusion, contact, mixing, complete wet method mixing, and then reach mixing effect, additionally the solution after atomization is condensed collecting and is then stirred, improve wet method melting effect further, and the method improve working environment, decrease environmental pollution, save the energy, processing technique is simple simultaneously, and equipment investment is little, it may be achieved industrialized production。
Detailed description of the invention
Below the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain, broadly fall into the scope of protection of the invention。
One according to embodiments of the invention is first atomized decomposite rubber wet method compounding process, comprises the following steps:
One is first atomized decomposite rubber wet method compounding process, comprises the following steps:
S1 liquid: the latex in the formula making rubber, filler, compounding ingredient are prepared respective aqueous dispersion solution respectively, and different material prepares different aqueous solutions, has prepared the solution of single solute。
Wherein latex includes Heveatex, synthetic latex；Compounding ingredient for include antioxidant, age resistor, coupling agent, activating agent, fire retardant, heat stabilizer, light stabilizer, dyestuff, pigment, accelerator therein one or several, one or more compounding ingredients therein can be selected according to the actual requirements when adding above-mentioned compounding ingredient。
Concentration range for prepared solution, it is preferable that in described latex solution, rubber concentration range in the solution is 18% weight to 22% weight；In described filler solution, the concentration range in the solution of filler is 18% weight to 22% weight；In described compounding ingredient solution, the concentration range in the solution of compounding ingredient is 3% weight to 22% weight。
S2 is atomized: respectively the various solution made being passed through certain atomization parameter, by various solution atomizations, wherein atomization process parameter is: pressure 0.5-3MPa, liquid stream diameter 1.0-3.0mm, atomization speed 0.67-20g/s, spray angle 60-120 °。
By improve the specific surface area of contact after being atomized by mixed liquor, under certain spray angle with jet velocity, entering the mixed liquor after the atomization of mixed zone and can contact mixing further, this is the committed step that wet method of the present invention is mixing, and fogging degree is closely related with final melting effect。
S3 spreads: each material after atomization being passed into mixing chamber, is diffused, contacts, mixes in mixing chamber, wherein the liquid after atomization is fully contacted by mixing chamber, ensure that each material carries out being fully contacted mixing, it is achieved melting effect in the process of contact。
Each material after the atomization entered in mixing chamber, can there is certain injection amplitude, crosswise jet between material can be realized, improve mixed effect, meanwhile, the material after atomization has certain spray angle and jet velocity, and fog clashes into locular wall after entering mixing chamber, promote fog relative motion, improve mixed effect further。
S4 condenses: the material after atomization upon mixing, condenses with after the contact internal walls of mixing chamber, forms drop, drop flows out along inwall under gravity, in flow process, owing to there is boundary shear stress, therefore in flow process, material drop mixes further, again improves mixed effect。
S5 collects: the liquid after cohesion flows out along mixing chamber inwall, is collected, obtains rubber composition after having collected bottom mixing chamber。
S6 stirs: described rubber composition is stirred, by stirring the mixed effect again improving rubber composition, stirring technique parameter is mixing speed 100-500rpm, mixing time 1-10min, preferably, adopt blade mixer that rubber composition stirs 5min at 300 rpm。
S7 dries: the mixture after stirring is carried out acid adding flocculation, washes glue and dehydration acquisition rubber masterbatch, concrete wherein adds certain mass acetic acid by the mixed liquor after stirring, and then latex mixed liquor uniformly flocculates, latex mixture after solidification is put into rubber washing machine carries out dehydration, with tap water, it is rinsed simultaneously, and puts into baking-glue machine carries out drying glue。
The latex being applied in rubber wet method mixing process is divided into for Heveatex and synthetic latex。In the present embodiment, latex adopts Heveatex, and filler is white carbon, and concrete formula is as shown in table 1。
Table 1, rubber wet method mixing formula:
| Natural rubber | 100 |
| Zinc oxide | 2 |
| Stearic acid | 2 |
| High-dispersion white carbon black | 60 |
| Si69 | 10 |
| Antioxidant 4020 | 2 |
| Diphenylguanidine | 1.3 |
| Accelerant CZ | 1.2 |
| Sulfur | 1 |
Embodiment adopts and of the present invention be first atomized decomposite rubber wet method compounding process and be prepared
In above-mentioned formula, preparing of various solution concrete is:
1, prepared by Heveatex solution: take the centrifugal concentrating Heveatex 332g of dry rubber content 60%, adds 668g distilled water, stir by stirring rod, centrifugal concentrating Heveatex is diluted to the Heveatex solution that dry rubber content is 20% in latex。
2, prepared by white carbon slurry: takes high-dispersity white carbon black 120g and is dissolved in 480g distilled water, white carbon is made to be dissolved completely in distilled water with Glass rod stirring, the white carbon slurry T25 high speed dispersor mixed is processed under 12000rpm 1min, then white carbon slurry is put into grinding 2h in planetary ball mill。
3, prepared by silane coupler solution: takes 20g silane coupler Si69 and is dissolved in 180g distilled water, stirs with Glass rod, then Si69 solution is put into grinding 30min in planetary ball mill。
4, prepared by burnett's solution: takes 4g zinc oxide and is dissolved in 76g distilled water, stirs with Glass rod, then burnett's solution is put into grinding 30min in planetary ball mill。
5, prepared by stearic acid solution: takes 4g stearic acid SAD and is dissolved in 76g distilled water, stirs with Glass rod, then stearic acid solution is put into grinding 30min in planetary ball mill。
6, prepared by antioxidant 4020 solution: first by antioxidant 4020 granule at planetary grinding in ball grinder 1h, antioxidant 4020 after grinding is Powdered, take 4g to be dissolved in 76g distilled water, stir with Glass rod, then antioxidant 4020 solution is put into grinding 30min in planetary ball mill。
7, prepared by diphenylguanidine solution: takes 2.6g diphenylguanidine and is dissolved in 49.4g distilled water, stirs with Glass rod, then diphenylguanidine solution is put into grinding 30min in planetary ball mill。
8, prepared by vulcanizing system solution: take 2.4g accelerant CZ and 2g sulfur is dissolved in 83.6g distilled water, stir with Glass rod, then diphenylguanidine solution is put into grinding 30min in planetary ball mill。
Each solution after having prepared is adopted and of the present invention be first atomized decomposite rubber wet method compounding process and carry out mixing。
Latex mixture after solidification is put into rubber washing machine carries out dehydration, it is rinsed, the film after rubber washing machine dehydration is put into simultaneously in the baking oven of 70 DEG C with tap water and dry 8h, oven temperature is adjusted to 148 DEG C again film is dried 2min again, namely can be taken off。Mill mixing, sulfuration: be put in mill to carry out by the film after drying supplement mixing, under the minimum state of mill mixer roller gap, film is crossed on a mill until roller and gets final product bottom sheet ten times, finished composition, by prepared elastomeric compound 150 DEG C, on vulcanizing press, vulcanize 15min under 10MPa pressure, wet method vulcanizate。
Comparative example, common dry method compounding process is prepared
In banbury, 60 parts of white carbons, 10 parts of silane coupler Si69 are joined 100 parts of natural rubbers carry out mixing, when after filler absorption rubber, add discharging from banbury in mixing 4 minutes again after 2 parts of zinc oxide, 2 parts of stearic acid, 2 parts of antioxidant 4020s, then cross roller bottom sheet on a mill until and obtain premixing glue。After parking 2 hours, 1.2 parts of accelerant CZs and 1 part of sulfur are added on a mill until premixing glue prepares elastomeric compound。Through mill bottom sheet, after parking 8 hours, 150 DEG C, vulcanize in vulcanizing press to optimum cure under 10MPa pressure, prepare dry pre-sulfiding glue。
With the vulcanizate of acquisition in comparative example, embodiment is carried out quantitative measurement, and the test result obtained is as shown in table 2。
Table 2, vulcanizating glue physical performance test result:
| Sequence number | Test event | Dry pre-sulfiding glue | Wet method vulcanizate |
| 1 | Mooney viscosity (ML1+4) | 76.43 | 61.91 |
| 2 | T90(min) | 11.5 | 7.4 |
| 3 | Hardness (shore A) | 77 | 75 |
| 4 | Tearing strength (KN/m) | 95.5 | 122.2 |
| 5 | 300% stretches (MPa) surely | 16.51 | 13.34 |
| 6 | Hot strength (MPa) | 27.01 | 31.92 |
| 7 | Elongation at break (%) | 467 | 576 |
| 8 | Abrasion (%) | 9.48 | 9.45 |
| 9 | Dispersion | 7.7 | 8.1 |
| 10 | tanδ(60℃) | 0.109 | 0.075 |
As known from Table 2, under same recipe, the compounding process adopted due to wet method elastomeric compound is different and the cured properties prepared also has difference, compared with common maskerbatch of dry process, in wet masterbatch, filler degree of scatter in rubber greatly improves；The physical and mechanical propertiess such as the hot strength of vulcanizate, tearing strength significantly improve；The Mooney viscosity of wet method elastomeric compound substantially reduces, and is more beneficial for extrusion molding；The sulfuration course of wet method elastomeric compound substantially shortens, and improves curing efficiency and can save a large amount of energy consumption；And the tan δ-value that wet method vulcanizate is under 60 DEG C of conditions is obviously reduced, illustrate that it has relatively low hysteresis loss, make tyre surface with it and can have relatively low resistance to rolling。
In sum, of the present invention first it is atomized decomposite rubber wet method compounding process, by material being prepared respectively various solution, enter mixing chamber after atomization and complete diffusion, contact, mixing, complete wet method mixing, and then reach mixing effect, additionally the solution after atomization is condensed collecting and is then stirred, improve wet method melting effect further, and the method improve working environment, decrease environmental pollution, save the energy, processing technique is simple simultaneously, and equipment investment is little, it may be achieved industrialized production。
Although having been described for the preferred embodiment of the embodiment of the present invention, but those skilled in the art are once know basic creative concept, then these embodiments can be made other change and amendment。So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of range of embodiment of the invention。
Above one provided by the present invention is first atomized decomposite rubber wet method compounding process, it is described in detail, principles of the invention and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously; for one of ordinary skill in the art; thought according to the present invention; all will change in specific embodiments and applications, in sum, this specification content is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention to make or equivalence flow process conversion, or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention。Should not be construed as limitation of the present invention。
Claims (9)
1. one kind is first atomized decomposite rubber wet method compounding process, it is characterised in that the method comprises the following steps:
S1 liquid: the latex in formula, filler, compounding ingredient are prepared respective aqueous dispersion solution respectively；
S2 is atomized: by the various solution uniform atomizings of configuration, atomization process parameter, atomizing pressure 0.5-3MPa, liquid stream diameter 1.0-3.0mm, atomization speed 0.67-20g/s, spray angle 60-120 °；
S3 spreads: each material after atomization is diffused at mixing chamber, contacts, mixes；
S4 condenses: the material of mixing condenses at the inwall of mixing chamber；
S5 collects: the liquid after cohesion flows out along mixing chamber inwall, collects and obtains rubber composition；
S6 stirs: described rubber composition is stirred, stirring technique parameter, mixing speed 100-500rpm, mixing time 1-10min, completes rubber wet method mixing。
2. according to claim 1 first it is atomized decomposite rubber wet method compounding process, it is characterised in that the method also includes the mixture after stirring is flocculated, wash glue and dehydration obtains rubber masterbatch。
3. according to claim 1 first it is atomized decomposite rubber wet method compounding process, it is characterised in that the latex solution in described S1 step, filler solution, compounding ingredient solution, vulcanizing system solution are the solution of single solute。
4. according to claim 1 first it is atomized decomposite rubber wet method compounding process, it is characterised in that the latex in described S1 step includes one or more in Heveatex and synthetic latex。
5. according to claim 4 first it is atomized decomposite rubber wet method compounding process, it is characterised in that in described latex solution, rubber concentration range in the solution is 18% weight to 22% weight。
6. according to claim 1 first it is atomized decomposite rubber wet method compounding process, it is characterised in that the filler in described S1 step includes one or more in white carbon black, white carbon。
7. according to claim 6 first it is atomized decomposite rubber wet method compounding process, it is characterised in that in described filler solution, the concentration range in the solution of filler is 18% weight to 22% weight。
8. according to claim 1 first it is atomized decomposite rubber wet method compounding process, it is characterized in that, the compounding ingredient in described S1 step include antioxidant, age resistor, coupling agent, activating agent, fire retardant, heat stabilizer, light stabilizer, dyestuff, pigment, accelerator one or more。
9. according to claim 8 first it is atomized decomposite rubber wet method compounding process, it is characterised in that in described compounding ingredient solution, the concentration range in the solution of compounding ingredient is 3% weight to 22% weight。
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