CN107236137A - A kind of rear end assisted atomization rubber wet method compounding process - Google Patents
A kind of rear end assisted atomization rubber wet method compounding process Download PDFInfo
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- CN107236137A CN107236137A CN201710407280.1A CN201710407280A CN107236137A CN 107236137 A CN107236137 A CN 107236137A CN 201710407280 A CN201710407280 A CN 201710407280A CN 107236137 A CN107236137 A CN 107236137A
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- 238000000034 method Methods 0.000 title claims abstract description 78
- 229920001971 elastomer Polymers 0.000 title claims abstract description 50
- 239000005060 rubber Substances 0.000 title claims abstract description 48
- 238000000889 atomisation Methods 0.000 title claims abstract description 34
- 230000008569 process Effects 0.000 title claims abstract description 30
- 238000013329 compounding Methods 0.000 title claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 8
- 238000010058 rubber compounding Methods 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 19
- 229920000126 latex Polymers 0.000 claims description 16
- 239000004816 latex Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 14
- 239000012153 distilled water Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000006229 carbon black Substances 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
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000005864 Sulphur Substances 0.000 description 5
- 150000001875 compounds Chemical class 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
- 230000008859 change 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
- 238000001035 drying Methods 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 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
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920003008 liquid latex Polymers 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 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
- 238000005096 rolling process Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- -1 wherein Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
- C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
- C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
- C08J3/215—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase at least one additive being also premixed with a liquid phase
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2307/00—Characterised by the use of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a kind of rear end assisted atomization rubber wet method compounding process, including liquid processed：Material in rubber compounding is prepared into mixed uniformly mixed liquor；Atomization：By the mixed liquor uniform atomizing of preparation；Diffusion：Mixed liquor after atomization is diffused in mixing chamber, contacts, mixed；Cohesion is collected：The material of mixing is collected after the inwall cohesion of mixing chamber, obtains rubber composition.Beneficial effects of the present invention are：It is ground by the way that formula material is carried out into preliminary be prepared by mixing into mixed liquor, each solution preparation process by ball mill, by tentatively stirring, complete the preliminary mixing of mixed liquor, by completing further to mix after atomization, the wet method mixing of rubber masterbatch is effectively completed, melting effect is obvious, improve working environment, environmental pollution is reduced, the energy is saved, while processing technology is simple, equipment investment is small, and industrialized production can be achieved.
Description
Technical field
The present invention relates to compounding rubber technical field, it particularly relates to which a kind of rear end assisted atomization rubber wet method is kneaded
Method.
Background technology
For a long time, the raw material that rubber industry is used are always a kind of niggerhead, and this niggerhead is not only removed
Fortune and dispensing make troubles, in addition it is also necessary to be cut into small pieces weighings, at the same knead when also to consume very big power could be pulverized,
Mixing, it is therefore desirable to heavy rubber preparing device, it is big not only to consume power, and carbon black is difficult to disperse, refining glue often, the cycle
It is long.In addition, rubber tree produced be liquid latex, by latex coagulation, dry be prepared into bulk rubber, not only process is numerous
The miscellaneous, cycle is long, but also need to consume substantial amounts of human and material resources, wastes many energy.
Various shortcoming when being kneaded for niggerhead, wet method mixing technology arises at the historic moment.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 process such as poly-, dehydration, dry produces rubber mixed method.The compounding ingredients such as dry glue and carbon black, white carbon are existed with traditional
The mixing of multistage dry method is carried out in banbury entirely different.The biggest advantage of wet method mixing technology is exactly filler good dispersion, sulphur
The physical and mechanical properties for changing glue is good, and can be prevented effectively from powder stuffing flies upward pollution, mixed with other compounding ingredients beneficial to environmental protection
Close effect good, process very convenient, the mixing energy consumption and cost of rubber can be significantly reduced, 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, its technical characteristic is added to the aggregation mixed with latex for dustless carbon black filler water slurry is formed into jet under high pressure
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 substantially completely condenses with elastomer, be dehydrated, dry after be made be referred to as CEC material.
The preparation method that wet method kneads natural rubber sizing material is disclosed in Chinese Patent Application No. 201110064299., its
Specific technical scheme is the white carbon slurry and the mixed liquor of Heveatex anticipated by long agitation again through wadding
Coagulate, wash glue, dehydration and white carbon masterbatch is made after drying, the method preparation section time is oversize, is unfavorable for actual process
Metaplasia is produced.
The problem of in correlation technique, effective solution is not yet proposed at present.
The content of the invention
It is an object of the invention to provide a kind of rear end assisted atomization rubber wet method compounding process, to overcome currently available technology
Above shortcomings.
The purpose of the present invention is to be achieved through the following technical solutions：
A kind of rear end assisted atomization rubber wet method compounding process, this method comprises the following steps：
S1 liquid：Material in rubber compounding is prepared into mixed uniformly mixed liquor；
S2 is atomized：By the mixed liquor uniform atomizing of preparation；
S3 spreads：Mixed liquor after atomization is diffused in mixing chamber, contacts, mixed；
S4 cohesions are collected：The material of mixing is collected after the inwall cohesion of mixing chamber, obtains rubber composition.
Further, this method also includes flocculating to the rubber composition, washes glue and dehydration acquisition rubber masterbatching
Glue.
Further, the S1 steps include the filler in formula, compounding ingredient, vulcanizing system being prepared into uniform moisture
Granular media, is added in latex and carries out preliminary stirring mixing at normal temperatures, be prepared into mixed uniformly mixed liquor.
Further, in the S1 steps latex solution, filler solution, the agent solution, vulcanizing system solution is coordinated to be
The solution of single solute.
Further, the filler solution, cooperation agent solution, the preparation of vulcanizing system solution include solute being dissolved in steaming
In distilled water, it is put into planetary ball mill and is ground after stirring.
Preferably, the stirring technique parameter tentatively stirred is mixing speed 100-500rpm, mixing time 1-
10min。
Preferably, the concentration of the solute of mixed liquor in the solution is 18%-22% in the S1 steps.
Preferably, in the step S2 atomization process parameter be atomizing pressure 0.5-3MPa, liquid flow diameter 1.0-3.0mm,
60-120 ° of atomization speed 0.67-20g/s, spray angle.
Preferably, each material in the S3 steps after atomization is 20-45 DEG C in mixing chamber Contact Temperature.
Beneficial effects of the present invention are：By carrying out formula material to be tentatively prepared by mixing into mixed liquor, prepared by each solution
During be ground by ball mill, by tentatively stirring, complete mixed liquor preliminary mixing, by being completed after atomization into one
The mixing of step ground, effectively completes the wet method mixing of rubber masterbatch, and melting effect substantially, improves working environment, reduces ring
Border is polluted, and saves the energy, while processing technology is simple, equipment investment is small, and industrialized production can be achieved.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained, belongs to the scope of protection of the invention.
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：
| Title | Number |
| 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 |
| Sulphur | 1 |
Embodiment is prepared using rear end assisted atomization rubber wet method compounding process of the present invention
First step liquid：Material in rubber compounding is prepared into mixed uniformly mixed liquor.
Filler, compounding ingredient, vulcanizing system in formula are prepared into uniform aqueous dispersion, wherein, latex solution, filler are molten
Liquid, cooperation agent solution, vulcanizing system solution are the solution of single solute, are then added to filler solution, cooperation agent solution
Preliminary stirring mixing is carried out in latex solution and at normal temperatures, mixed uniformly mixed liquor is prepared into.
Wherein latex solution is the uniform water granular media that dry rubber content accounts for 20%；Solute is molten in the mixed liquor prepared
Concentration in liquid is 18%-22%, preferably 20%；The stirring technique parameter tentatively stirred is mixing speed 100-500rpm, is stirred
Time 1-10min is mixed, preferably 5min is stirred under 300rpm rotating speed.
For the preparation method of each solution, comprise the following steps：
1st, prepared by Heveatex solution：The centrifugal concentrating Heveatex 332g of dry rubber content 60% is taken, 668g is added in latex and is steamed
Distilled water, is stirred with stirring rod, and centrifugal concentrating Heveatex is diluted into the Heveatex solution that dry rubber content is 20%.
2nd, prepared by white carbon slurry：Take high-dispersity white carbon black 120g to be dissolved in 480g distilled water, stirred with glass bar
White carbon is dissolved completely in distilled water, starch the white carbon slurry T25 high speed dispersors mixed and locate under 12000rpm
1min is managed, then white carbon slurry is put into planetary ball mill grinds 2h.
3rd, prepared by silane coupler solution：Take 20g silane couplers Si69 to be dissolved in 180g distilled water, stirred with glass bar
Mix uniform, then Si69 solution is put into planetary ball mill grinds 30min.
4th, prepared by burnett's solution：Take 4g zinc oxide to be dissolved in 76g distilled water, stirred with glass bar, then by oxygen
Change zinc solution, which is put into planetary ball mill, grinds 30min.
5th, prepared by stearic acid solution：Take 4g stearic acid SAD to be dissolved in 76g distilled water, stirred with glass bar, then will
Stearic acid solution, which is put into planetary ball mill, grinds 30min.
6th, prepared by antioxidant 4020 solution：Antioxidant 4020 particle is first ground into 1h in planetary ball mill, it is ground
Antioxidant 4020 afterwards is taken 4g to be dissolved in 76g distilled water, stirred with glass bar to be powdered, then by antioxidant 4020
Solution, which is put into planetary ball mill, grinds 30min.
7th, prepared by diphenylguanidine solution：Take 2.6g diphenylguanidines to be dissolved in 49.4g distilled water, stirred with glass bar,
Diphenylguanidine solution is put into planetary ball mill again and grinds 30min.
8th, prepared by vulcanizing system solution：Take 2.4g accelerant CZs and 2g sulphur to be dissolved in 83.6g distilled water, use glass bar
Stir, then diphenylguanidine solution is put into planetary ball mill grinds 30min.
It is worth noting that, each parameter is only the preferred embodiment of the embodiment of the present invention above, match somebody with somebody for different rubber
Side, each quality of material of use is also different.After the preparation of respective solution is completed, filler and compounding ingredient are added
There is no the restriction of sequencing into Heveatex, it can be understood as random order it is all within the scope of the present invention.
In adition process, it can be stirred while adding.
Second step is atomized：The aqueous dispersion for stirring obtained solution is joined by changing ambient pressure parameter and flow velocity
Mixed solution is atomized by number, and atomization process parameter is：Atomizing pressure 0.5-3MPa, liquid flow diameter 1.0-3.0mm, atomization speed
60-120 ° of 0.67-20g/s, spray angle.
By improving the specific surface area of contact after mixed liquor is atomized, under certain spray angle and jet velocity, enter
Mixing can further be contacted by entering the mixed liquor after the atomization of mixed zone, and this is the committed step of wet method mixing of the present invention, is atomized journey
Spend closely related with final melting effect.
3rd step spreads：Each material after atomization is diffused in mixing chamber, contacts, mixed.Into the mist in mixing chamber
There is certain initial velocity in gas, due to the setting of spray angle, and fog is hit after entering mixing chamber with locular wall, promote fog
Relative motion, improves mixed effect.
4th step is condensed：Material after atomization upon mixing, condenses after being contacted with the inwall of mixing chamber, forms drop, liquid
Drop under Action of Gravity Field and to be flowed out along inwall, in flow process, due to there is boundary shear stress, therefore the material in flow process
Drop is further mixed, and mixed effect is improved again.
5th step is collected：Liquid after cohesion is collected in mixing chamber bottom, collected along mixing chamber interior walls outflow
Rubber composition is obtained after.
6th step is stirred：The rubber composition is stirred, the mixing of rubber composition is improved again by stirring
Effect, stirring technique parameter is mixing speed 100-500rpm, mixing time 1-10min, it is preferable that use blade mixer
5min is stirred at 300 rpm to rubber composition.
7th step is dried：Mixture after stirring is flocculated, glue and dehydration acquisition rubber masterbatch is washed.Specific step
Suddenly include:Mixed liquor after stirring is added into a certain amount of acetic acid, and then latex mixed liquor uniformly flocculates.After solidification
Latex mixture, which is put into rubber washing machine, to be dehydrated, while after being rinsed, being dehydrated through rubber washing machine to it with running water
Film, which is put into 70 DEG C of baking oven, dries 8h, then oven temperature is adjusted into 148 DEG C film is dried into 2min again, you can take out.
Rubber masterbatch after obtaining can carry out mill mixing and vulcanization.Concrete operations are：By the film after drying
Progress supplement mixing in mill is put into, under the minimum state of mill mixer roller gap, film is crossed into roller ten times on a mill
Can bottom sheet, obtain finished composition, obtained elastomeric compound vulcanized into 15min under 150 DEG C, 10MPa pressure on vulcanizing press, i.e.,
Wet method vulcanizate can be obtained.
It is prepared by comparative example, common dry method compounding process
60 parts of white carbons, 10 parts of silane coupler Si69 are added in 100 parts of natural rubbers and mixed in banbury
Refining, after filler is mixed into rubber, add 2 parts of zinc oxide, 2 parts of stearic acid, 2 parts of antioxidant 4020s after knead again 4 minutes from
Discharging in banbury, then crosses roller bottom sheet and obtains premixing glue on a mill.Park after 2 hours, by 1.2 parts of accelerant CZs and 1
Part sulphur is added on a mill is made elastomeric compound in premixing glue.Through mill bottom sheet, park after 8 hours, in 150 DEG C of flat boards
Vulcanize in vulcanizer to optimum cure, dry pre-sulfiding glue is made.
The vulcanizate obtained in embodiment and comparative example is subjected to quantitative measurement, the obtained test result such as institute of table 2
Show.
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 | 63.07 |
| 2 | T90（min） | 11.5 | 7.2 |
| 3 | Hardness（shore A） | 77 | 76 |
| 4 | Tearing strength（KN/m） | 95.5 | 126.2 |
| 5 | 300% stretches surely（MPa） | 16.51 | 14.24 |
| 6 | Tensile strength（MPa） | 27.01 | 32.47 |
| 7 | Elongation at break（%） | 467 | 608 |
| 8 | Abrasion（%） | 9.48 | 9.39 |
| 9 | Decentralization | 7.7 | 8.2 |
| 10 | tanδ(60℃) | 0.109 | 0.068 |
As known from Table 2, under same recipe, the vulcanization colloidality prepared by the compounding process difference that wet method elastomeric compound is used
Can also there is difference, compared with common maskerbatch of dry process, degree of scatter of the filler in rubber is greatly improved in wet masterbatch；Sulphur
Change the physical and mechanical properties such as tensile strength, the tearing strength of glue to significantly improve；The Mooney viscosity of wet method elastomeric compound is substantially reduced, more
Be conducive to extrusion molding；The vulcanization course of wet method elastomeric compound substantially shortens, and a large amount of energy consumptions can be saved by improving curing efficiency；And
Tan δ value of the wet method vulcanizate under the conditions of 60 DEG C is obviously reduced, and illustrates that it has relatively low hysteresis loss, and tyre surface is made with it
There can be relatively low rolling resistance.
Although having been described for the preferred embodiment of the embodiment of the present invention, those skilled in the art once know base
This creative concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to
Including preferred embodiment and fall into having altered and changing for range of embodiment of the invention.
Above to a kind of rear end assisted atomization rubber wet method compounding process provided by the present invention, it is described in detail,
Specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is
It is used to help understand the method and its core concept of the present invention；Simultaneously for those of ordinary skill in the art, according to this hair
Bright thought, will change in specific embodiments and applications, in summary, and this specification content is only
Embodiments of the present invention, are not intended to limit the scope of the invention, what every utilization present specification was made
Equivalent structure or equivalent flow conversion, or other related technical fields are directly or indirectly used in, similarly it is included in this hair
In bright scope of patent protection.It should not be construed as limiting the invention.
Claims (9)
1. a kind of rear end assisted atomization rubber wet method compounding process, it is characterised in that this method comprises the following steps：
S1 liquid：Material in rubber compounding is prepared into mixed uniformly mixed liquor；
S2 is atomized：By the mixed liquor uniform atomizing of preparation；
S3 spreads：Mixed liquor after atomization is diffused in mixing chamber, contacts, mixed；
S4 cohesions are collected：The material of mixing is collected after the inwall cohesion of mixing chamber, obtains rubber composition.
2. rear end assisted atomization rubber wet method compounding process according to claim 1, it is characterised in that this method also includes
The rubber composition is flocculated, glue and dehydration acquisition rubber masterbatch is washed.
3. rear end assisted atomization rubber wet method compounding process according to claim 1, it is characterised in that the S1 steps bag
Include and the filler in formula, compounding ingredient, vulcanizing system are prepared into uniform aqueous dispersion, be added in latex and enter at normal temperatures
The preliminary stirring mixing of row, is prepared into mixed uniformly mixed liquor.
4. rear end assisted atomization rubber wet method compounding process according to claim 3, it is characterised in that in the S1 steps
Latex solution, filler solution, coordinate the solution that agent solution, vulcanizing system solution are single solute.
5. rear end assisted atomization rubber wet method compounding process according to claim 4, it is characterised in that the filler is molten
Liquid, the preparation for coordinating agent solution, vulcanizing system solution are put into planetary including solute is dissolved in distilled water after stirring
It is ground in ball mill.
6. rear end assisted atomization rubber wet method compounding process according to claim 3, it is characterised in that the preliminary stirring
Stirring technique parameter be mixing speed 100-500rpm, mixing time 1-10min.
7. rear end assisted atomization rubber wet method compounding process according to claim 3, it is characterised in that in the S1 steps
The concentration of the solute of mixed liquor in the solution is 18%-22%.
8. rear end assisted atomization rubber wet method compounding process according to claim 1, it is characterised in that in the step S2
Atomization process parameter is atomizing pressure 0.5-3MPa, liquid flow diameter 1.0-3.0mm, atomization speed 0.67-20g/s, spray angle
60-120°。
9. rear end assisted atomization rubber wet method compounding process according to claim 1, it is characterised in that in the S3 steps
Each material after atomization is 20-45 DEG C in mixing chamber Contact Temperature.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679554A (en) * | 2019-01-04 | 2019-04-26 | 福建惠安县惠兴工贸有限公司 | A kind of bicomponent epoxy resin base gap filler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679554A (en) * | 2019-01-04 | 2019-04-26 | 福建惠安县惠兴工贸有限公司 | A kind of bicomponent epoxy resin base gap filler |
| CN109679554B (en) * | 2019-01-04 | 2021-12-03 | 福建惠安县惠兴工贸有限公司 | Two-component epoxy resin-based joint mixture |
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Application publication date: 20171010 |