CN105690587B - It is a kind of to be first atomized the rubber wet method mixing method remixed - Google Patents
It is a kind of to be first atomized the rubber wet method mixing method remixed Download PDFInfo
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- CN105690587B CN105690587B CN201610152240.2A CN201610152240A CN105690587B CN 105690587 B CN105690587 B CN 105690587B CN 201610152240 A CN201610152240 A CN 201610152240A CN 105690587 B CN105690587 B CN 105690587B
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- 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
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- 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
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- 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
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Abstract
The invention discloses a kind of rubber wet method mixing method for being first atomized and remixing, including, liquid processed：Latex, filler, compounding agent in formula is prepared into respective aqueous dispersion solution respectively；Atomization：By the various solution uniform atomizings of configuration；Diffusion：Each material after atomization is diffused in mixing chamber, contacts, mixes；Cohesion：Mixed material is agglomerated in the inner wall of mixing chamber；It collects：For liquid after cohesion along mixing chamber interior walls outflow, collection obtains rubber composition；Stirring is completed rubber wet method and is kneaded.Beneficial effects of the present invention are：By the way that material to be made to various solution respectively, enter mixing chamber after atomization and completes diffusion, contact, mixing, it completes wet method to be kneaded, and then achievees the effect that mixing, the solution after atomization is condensed collection and then is stirred, further increase wet method melting effect, improve working environment, saves the energy, while processing technology is simple, equipment investment is small, it can be achieved that industrialized production.
Description
Technical field
The present invention relates to rubber mixing-milling techniques, it particularly relates to which a kind of being first atomized the rubber wet method mixing side remixed
Method.
Background technology
For a long time, the raw material that rubber industry uses are always a kind of niggerhead, and this niggerhead is not only removed
Fortune and dispensing make troubles, it is also necessary to be cut into small pieces weighings, at the same mixing when also to consume very big power could be pulverized,
Mixing, it is therefore desirable to heavy rubber mixing equipment not only consumes that power is big, but also carbon black is not easy to disperse, refining glue often, the period
It is long.In addition, rubber tree produced be liquid latex, by latex coagulation, drying be prepared into block-like rubber, not only process is numerous
It is miscellaneous, the period is long, but also need to consume a large amount of human and material resources, waste many energy.
Various shortcoming when being kneaded for niggerhead, wet method mixing technology come into being.Wet method mixing technology refer to by
Aqueous dispersion is made by fillers such as the carbon black, the white carbons that are pre-machined, is sufficiently mixed in the liquid state with rubber latex, then through solidifying
The processes such as poly-, dehydration, dry produce rubber mixed method.The compounding agents such as dry glue and carbon black, white carbon are existed with traditional
It is entirely different that the mixing of multistage dry method is carried out in mixer.Wet method mixing technology the biggest advantage is to filler good dispersion, sulphur
The physical mechanical property for changing glue is good, and can effectively avoid powder stuffing flies upward pollution, is conducive to environmental protection, mixed with other compounding ingredients
It is good to close effect, processing is very convenient, can significantly reduce the mixing energy consumption and cost of rubber, and be conducive to the reality of continuous mixing technique
It is existing.
Continuous Liquid Phase calendering process production natural rubber and carbon black filler masterbatch are disclosed in Chinese patent CN1280534
Technology, technical characteristic are that dustless carbon black filler water slurry is formed jet stream under high pressure to be added to the aggregation mixed with latex
In device, it is therefore an objective to strongly enough mix elastomer precursor gum milk flow with carbon black filler water slurry, carbon black grain is made before discharge end
Shape filler is substantially completely agglomerated with elastomer, be dehydrated, dry after be made be known as CEC material.
The preparation method that wet method is kneaded natural rubber sizing material is disclosed in Chinese Patent Application No. 201110064299.,
Specific technical solution is that the mixed liquor of the white carbon slurry and Heveatex anticipated by long agitation is again through wadding
It coagulates, wash glue, dehydration and dry white carbon masterbatch obtained later, the method preparation section time is too long, is unfavorable for actual process
Metaplasia is produced.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Invention content
The object of the present invention is to provide a kind of rubber wet method mixing method for being first atomized and remixing, to overcome current existing skill
Art above shortcomings.
The purpose of the present invention is be achieved through the following technical solutions：
It is a kind of to be first atomized the rubber wet method mixing method remixed, include the following steps：
S1 liquid：Latex, filler, compounding agent in formula is prepared into 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 are straight
Diameter 1.0-3.0mm, atomization speed 0.67-20g/s, 60-120 ° of spray angle；
S3 is spread：Each material after atomization is diffused in mixing chamber, contacts, mixes；
S4 agglomerates：Mixed material is agglomerated in the inner wall of mixing chamber；
S5 is collected：For liquid after cohesion along mixing chamber interior walls outflow, collection obtains rubber composition；
S6 is stirred：The rubber composition is stirred, stirring technique parameter, mixing speed 100-500rpm, is stirred
Time 1-10min；
S7 is dried：It flocculated to the mixture after stirring, wash glue and dehydration acquisition rubber masterbatch.
Further, the latex solution in the S1 steps, filler solution, cooperation agent solution are the molten of single solute
Liquid.
Further, the latex in the S1 steps includes Heveatex or synthetic latex.
Further, the concentration range of rubber in the solution is 18% weight to 22% weight in the latex solution.
Further, the filler in the S1 steps includes carbon black or white carbon.
Further, the concentration range in the solution of filler is 18% weight to 22% weight in the filler solution.
Further, the compounding agent in the S1 steps include antioxidant, it is anti-aging agent, coupling agent, activating agent, fire-retardant
Agent, heat stabilizer, light stabilizer, dyestuff, pigment, accelerating agent one kind.
Further, the concentration range in the solution of compounding agent is 3% weight to 22% weight in the cooperation agent solution
Amount.
Beneficial effects of the present invention are：Enter mixing chamber by the way that material to be made to various solution respectively, after atomization to complete to expand
It dissipates, contact, mix, complete wet method and be kneaded, and then achieve the effect that mixing, then the solution after being in addition atomized is condensed collection
It is stirred, further increases wet method melting effect, and the method improve working environments, reduce environmental pollution, save
The energy, while processing technology is simple, equipment investment is small, it can be achieved that industrialized production.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained, shall fall within the protection scope of the present invention.
It is described according to an embodiment of the invention a kind of to be first atomized the rubber wet method mixing method remixed, including following step
Suddenly：
It is a kind of to be first atomized the rubber wet method mixing method remixed, include the following steps：
S1 liquid：It is molten that the latex, filler, compounding agent that make in the formula of rubber are prepared into respective aqueous dispersion respectively
Liquid, different material prepare different aqueous solutions, prepare the solution for completing single solute.
Wherein latex includes Heveatex, synthetic latex；Compounding agent be include antioxidant, anti-aging agent, coupling agent, activity
Agent, fire retardant, heat stabilizer, light stabilizer, dyestuff, pigment, accelerating agent are one such or several, are adding above-mentioned cooperation
One such or a variety of compounding agents can be selected when agent according to actual demand.
For the concentration range of prepared solution, it is preferable that the concentration model of rubber in the solution in the latex solution
It encloses for 18% weight to 22% weight；The concentration range in the solution of filler is 18% weight to 22% in the filler solution
Weight；The concentration range in the solution of compounding agent is 3% weight to 22% weight in the cooperation agent solution.
S2 is atomized：Respectively by the various solution made by certain atomization parameter, by various solution atomizations, wherein being atomized
Technological parameter is：Pressure 0.5-3MPa, liquid stream diameter 1.0-3.0mm, atomization speed 0.67-20g/s, 60-120 ° of spray angle.
By improving the specific surface area of contact after being atomized mixed liquor, under certain spray angle and jet velocity, into
Mixing can further be contacted by entering the mixed liquor after the atomization of mixed zone, this is the committed step that wet method of the present invention is kneaded, and is atomized journey
Degree is closely related with final melting effect.
S3 is spread：Each material after atomization is passed through mixing chamber, is diffused, contacts, mixes in mixing chamber, wherein mist
Liquid after change is come into full contact with by mixing chamber, ensure that each material carries out coming into full contact with mixing during contact, is realized
Melting effect.
Entering each material after mixing indoor atomization, certain injection amplitude may be present, it can be achieved that being handed between material
Fork injection improves mixed effect, meanwhile, the material after atomization has certain spray angle and jet velocity, fog to enter mixing
It is hit with locular wall behind room, promotes fog relative motion, further increase mixed effect.
S4 agglomerates：Material after atomization upon mixing, agglomerates after being contacted with the inner wall of mixing chamber, forms drop, and drop exists
It is flowed out along inner wall under gravity, in flow process, due to there are boundary shear stress, the material drop in flow process
It is further mixed, improves mixed effect again.
S5 is collected：Liquid after cohesion is collected along mixing chamber interior walls outflow in mixing chamber bottom, after the completion of collecting
To rubber composition.
S6 is stirred：The rubber composition is stirred, improves the mixed effect of rubber composition again by stirring,
Stirring technique parameter is mixing speed 100-500rpm, mixing time 1-10min, it is preferable that using blade mixer to rubber
Glue mixture stirs 5min at 300 rpm.
S7 is dried：Acid adding flocculation is carried out to the mixture after stirring, washes glue and dehydration obtains rubber masterbatch, it is specific its
Certain mass acetic acid is added in the middle mixed liquor by after stirring, and then latex mixed liquor uniformly flocculates, and the latex after solidification is mixed
Zoarium is put into rubber washing machine and is dehydrated, while being rinsed to it with tap water, and is put into baking-glue machine and carries out drying glue.
Applied in rubber wet method mixing process to latex be divided into for Heveatex and synthetic latex.In the present embodiment
In, latex uses Heveatex, and filler is white carbon, and specific formula is as shown in table 1.
Table 1, rubber wet method mixing formula：
Embodiment is prepared using the rubber wet method mixing method of the present invention that remix that is first atomized
The preparation of various solution is specifically in above-mentioned formula：
1, prepared by Heveatex solution：The centrifugal concentrating Heveatex 332g for taking dry rubber content 60%, is added in latex
668g distilled water, is stirred with stirring rod, and centrifugal concentrating Heveatex is diluted to the Heveatex solution that dry rubber content is 20%.
2, prepared by white carbon slurry：It takes high-dispersity white carbon black 120g to be dissolved in 480g distilled water, is stirred with glass bar
White carbon is set to be dissolved completely in distilled water, by the white carbon slurry T25 high speed dispersors mixed at 12000rpm
1min is managed, then white carbon slurry is put into planetary ball mill and grinds 2h.
3, prepared by silane coupler solution：It takes 20g silane coupling agents Si69 to be dissolved in 180g distilled water, is stirred with glass bar
It mixes uniformly, then Si69 solution is put into planetary ball mill and grinds 30min.
4, prepared by burnett's solution：It takes 4g zinc oxide to be dissolved in 76g distilled water, is stirred evenly with glass bar, then by oxygen
Change zinc solution, which is put into planetary ball mill, grinds 30min.
5, prepared by stearic acid solution：It takes 4g stearic acid SAD to be dissolved in 76g distilled water, is stirred evenly with glass bar, then will
Stearic acid solution, which is put into planetary ball mill, grinds 30min.
6, prepared by antioxidant 4020 solution：First antioxidant 4020 particle is ground into 1h in planetary ball mill, grinds it
Antioxidant 4020 afterwards is powdered, takes 4g to be dissolved in 76g distilled water, is stirred evenly with glass bar, then by antioxidant 4020
Solution, which is put into planetary ball mill, grinds 30min.
7, prepared by diphenylguanidine solution：It takes 2.6g diphenylguanidines to be dissolved in 49.4g distilled water, is stirred evenly with glass bar,
Diphenylguanidine solution is put into planetary ball mill again and grinds 30min.
8, prepared by vulcanizing system solution：It takes 2.4g accelerant CZs and 2g sulphur to be dissolved in 83.6g distilled water, uses glass bar
It stirs evenly, then diphenylguanidine solution is put into planetary ball mill and grinds 30min.
Each solution after the completion of preparation is carried out using the rubber wet method mixing method of the present invention that remix that is first atomized
It is kneaded.
Latex mixture after solidification is put into rubber washing machine and is dehydrated, while it is rinsed with tap water,
Film after being dehydrated through rubber washing machine is put into 70 DEG C of baking oven dry 8h, then oven temperature is adjusted to 148 DEG C by film again
Dry 2min, you can take out.Mill mixing, vulcanization：Film after drying is put on open mill and carries out supplement mixing, is being opened
Under mill roller gap minimum state, film is crossed on a mill roller ten times can bottom sheet, obtain finished composition, by mixing obtained
Glue vulcanizes 15min under 150 DEG C, 10MPa pressure on vulcanizing press, you can obtains wet method vulcanizate.
It is prepared by comparative example, common dry method mixing method
60 parts of white carbons, 10 parts of silane coupling agent Si69 are added in 100 parts of natural rubbers and are mixed in mixer
Refining is kneaded 4 minutes from mixing again after filler is mixed into rubber after 2 parts of zinc oxide, 2 parts of stearic acid, 2 parts of antioxidant 4020s are added
Then discharging in machine crosses roller bottom sheet and obtains premixing glue on a mill.After parking 2 hours, by 1.2 parts of accelerant CZs and 1 part of sulphur
It is added in premixing glue on a mill and rubber compound is made.Through open mill bottom sheet, after parking 8 hours, under 150 DEG C, 10MPa pressure
Dry pre-sulfiding glue is made to optimum cure in vulcanization in vulcanizing press.
The vulcanizate obtained in embodiment and comparative example is subjected to quantitative measurement, obtained test result such as 2 institute of table
Show.
Table 2, vulcanizating glue physical performance test result：
As known from Table 2, under same recipe, the vulcanization of preparation due to mixing method difference used by wet method rubber compound
Colloidality can be also different, and compared with common maskerbatch of dry process, degree of scatter of the filler in rubber changes significantly in wet masterbatch
Into；The physical mechanical properties such as tensile strength, the tearing strength of vulcanizate significantly improve；The Mooney viscosity of wet method rubber compound obviously drops
It is low, it is more advantageous to extrusion molding；The vulcanization course of wet method rubber compound is obviously shortened, and a large amount of energy can be saved by improving curing efficiency
Consumption；And tan δ value of wet method vulcanizate under the conditions of 60 DEG C is obviously reduced, and illustrates that it, with lower hysteresis loss, makes of it
Tyre surface can have lower rolling resistance.
In conclusion of the present invention be first atomized the rubber wet method mixing method remixed, by making material respectively
Various solution are obtained, mixing chamber is entered after atomization and completes diffusion, contact, mix, wet method is completed and is kneaded, and then reach the effect of mixing
Fruit, the solution after being in addition atomized are condensed collection and then are stirred, and further increase wet method melting effect, and this method
Working environment is improved, environmental pollution is reduced, saves the energy, while processing technology is simple, equipment investment is small, it can be achieved that industrial
Metaplasia is produced.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Above to it is provided by the present invention it is a kind of being first atomized the rubber wet method mixing method remixed, carried out detailed Jie
It continues, principle and implementation of the present invention are described for specific case used herein, and the explanation of above example is only
It is the method and its core concept for being used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to this hair
Bright thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is only this
The embodiment of invention, is not intended to limit the scope of the invention, every to utilize description of the invention and accompanying drawing content institute
The equivalent structure or equivalent flow shift of work is applied directly or indirectly in other relevant technical fields, and is similarly included in
In the scope of patent protection of the present invention.It should not be construed as limiting the invention.
Claims (9)
1. a kind of being first atomized the rubber wet method mixing method remixed, which is characterized in that this approach includes the following steps：
S1 liquid：Latex, filler, compounding agent in formula is prepared into 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, 60-120 ° of spray angle；
S3 is spread：Each material after atomization is diffused in mixing chamber, contacts, mixes；
S4 agglomerates：Mixed material is agglomerated in the inner wall of mixing chamber；
S5 is collected：For liquid after cohesion along mixing chamber interior walls outflow, collection obtains rubber composition；
S6 is stirred：The rubber composition is stirred, stirring technique parameter, mixing speed 100-500rpm, mixing time
1-10min completes rubber wet method and is kneaded.
2. according to claim 1 be first atomized the rubber wet method mixing method remixed, which is characterized in that this method is also wrapped
It includes and is flocculated to the mixture after stirring, washes glue and dehydration acquisition rubber masterbatch.
3. according to claim 1 be first atomized the rubber wet method mixing method remixed, which is characterized in that the S1 steps
In latex solution, filler solution, cooperation agent solution be single solute solution.
4. according to claim 1 be first atomized the rubber wet method mixing method remixed, which is characterized in that the S1 steps
In latex include Heveatex or synthetic latex.
5. according to claim 4 be first atomized the rubber wet method mixing method remixed, which is characterized in that the latex is molten
The concentration range of rubber in the solution is 18% weight to 22% weight in liquid.
6. according to claim 1 be first atomized the rubber wet method mixing method remixed, which is characterized in that the S1 steps
In filler include carbon black or white carbon.
7. according to claim 6 be first atomized the rubber wet method mixing method remixed, which is characterized in that the filler is molten
The concentration range in the solution of filler is 18% weight to 22% weight in liquid.
8. according to claim 1 be first atomized the rubber wet method mixing method remixed, which is characterized in that the S1 steps
In compounding agent include antioxidant, anti-aging agent, coupling agent, activating agent, fire retardant, heat stabilizer, light stabilizer, dyestuff, face
One kind of material, accelerating agent.
9. according to claim 8 be first atomized the rubber wet method mixing method remixed, which is characterized in that the compounding agent
The concentration range in the solution of compounding agent is 3% weight to 22% weight in solution.
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| CN109251327B (en) * | 2017-07-12 | 2020-08-07 | 山东大展纳米材料有限公司 | Method and device for preparing rubber compound by continuous spraying and mixing |
| CN107325305B (en) * | 2017-08-10 | 2023-06-02 | 青岛科技大学 | Continuous production equipment for atomization drying of filler emulsion |
| CN110157017B (en) * | 2019-02-21 | 2022-02-01 | 益凯新材料有限公司 | Method for dispersing and mixing filler and additive in liquid synthetic rubber |
| CN113232187B (en) * | 2021-04-27 | 2022-08-19 | 青岛科技大学广饶橡胶工业研究院 | White carbon black and natural rubber wet mixing method |
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| US4029633A (en) * | 1976-04-14 | 1977-06-14 | Cabot Corporation | Carbon black-rubber masterbatch production |
| CN1280534A (en) * | 1997-09-30 | 2001-01-17 | 卡伯特公司 | Elastomer composite blends and method for producing them |
| CN103600434A (en) * | 2013-08-05 | 2014-02-26 | 怡维怡橡胶研究院有限公司 | Rubber master batch continuous manufacturing method and rubber master batch prepared thereby |
| CN104788752A (en) * | 2015-03-29 | 2015-07-22 | 安徽同丰橡塑工业有限公司 | Powder rubber preparation method |
| CN105419010A (en) * | 2015-11-29 | 2016-03-23 | 北京化工大学 | Method for preparing small-fraction filling composite masterbatch through semi-open type superheated steam spray-drying method |
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| CN102585309B (en) * | 2012-01-04 | 2013-11-13 | 北京化工大学 | Method for preparing high-dispersion white carbon black/rubber nano composite material |
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| US4029633A (en) * | 1976-04-14 | 1977-06-14 | Cabot Corporation | Carbon black-rubber masterbatch production |
| CN1280534A (en) * | 1997-09-30 | 2001-01-17 | 卡伯特公司 | Elastomer composite blends and method for producing them |
| CN103600434A (en) * | 2013-08-05 | 2014-02-26 | 怡维怡橡胶研究院有限公司 | Rubber master batch continuous manufacturing method and rubber master batch prepared thereby |
| CN104788752A (en) * | 2015-03-29 | 2015-07-22 | 安徽同丰橡塑工业有限公司 | Powder rubber preparation method |
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