CN116285026B - Corrosion-resistant particle modified rubber material, preparation process thereof and rubber tire - Google Patents
Corrosion-resistant particle modified rubber material, preparation process thereof and rubber tire Download PDFInfo
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- CN116285026B CN116285026B CN202310190506.2A CN202310190506A CN116285026B CN 116285026 B CN116285026 B CN 116285026B CN 202310190506 A CN202310190506 A CN 202310190506A CN 116285026 B CN116285026 B CN 116285026B
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 94
- 239000005060 rubber Substances 0.000 title claims abstract description 94
- 230000007797 corrosion Effects 0.000 title claims abstract description 61
- 238000005260 corrosion Methods 0.000 title claims abstract description 61
- 239000002245 particle Substances 0.000 title claims abstract description 44
- 239000000463 material Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title abstract description 44
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 25
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000011593 sulfur Substances 0.000 claims abstract description 22
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 22
- 229920002681 hypalon Polymers 0.000 claims abstract description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000006229 carbon black Substances 0.000 claims abstract description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 41
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 claims description 21
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 20
- 239000011787 zinc oxide Substances 0.000 claims description 20
- 235000021355 Stearic acid Nutrition 0.000 claims description 19
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 19
- 239000008117 stearic acid Substances 0.000 claims description 19
- 230000002457 bidirectional effect Effects 0.000 claims description 16
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 claims description 12
- 229910044991 metal oxide Inorganic materials 0.000 claims description 11
- 150000004706 metal oxides Chemical class 0.000 claims description 11
- 235000021319 Palmitoleic acid Nutrition 0.000 claims description 10
- SECPZKHBENQXJG-UHFFFAOYSA-N cis-palmitoleic acid Natural products CCCCCCC=CCCCCCCCC(O)=O SECPZKHBENQXJG-UHFFFAOYSA-N 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004014 plasticizer Substances 0.000 claims description 6
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 5
- 238000004073 vulcanization Methods 0.000 claims description 5
- 239000005751 Copper oxide Substances 0.000 claims description 4
- 229910000431 copper oxide Inorganic materials 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 3
- 239000000126 substance Substances 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 25
- 230000000052 comparative effect Effects 0.000 description 20
- 239000002253 acid Substances 0.000 description 12
- 239000003513 alkali Substances 0.000 description 12
- 230000008859 change Effects 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 9
- -1 polyethylene Polymers 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 5
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 5
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical group OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 5
- FWMUJAIKEJWSSY-UHFFFAOYSA-N sulfur dichloride Chemical group ClSCl FWMUJAIKEJWSSY-UHFFFAOYSA-N 0.000 description 4
- 150000003751 zinc Chemical class 0.000 description 4
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 229920002857 polybutadiene Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- OSDWBNJEKMUWAV-UHFFFAOYSA-N Allyl chloride Chemical compound ClCC=C OSDWBNJEKMUWAV-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012840 feeding operation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000005486 sulfidation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 238000003466 welding 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
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/24—Component parts, details or accessories; Auxiliary operations for feeding
-
- 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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K2003/2248—Oxides; Hydroxides of metals of copper
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to the technical field of tire production, in particular to a corrosion-resistant particle modified rubber material, a preparation process thereof and a rubber tire. The corrosion-resistant particle modified rubber material comprises the following raw materials in parts by weight: 90-110 parts of rubber matrix, 30-50 parts of corrosion-resistant particles, 10-20 parts of carbon black, 1-3 parts of silane coupling agent, 1-3 parts of accelerator and 2-3 parts of sulfur, wherein the corrosion-resistant particles are obtained by blending chloroprene rubber and chlorosulfonated polyethylene. The corrosion-resistant particle modified rubber material has excellent chemical resistance.
Description
Technical Field
The application relates to the technical field of tire production, in particular to a corrosion-resistant particle modified rubber material, a preparation process thereof and a rubber tire.
Background
The birth and development of automobiles are great achievements of world technological progress, are important footprints of human progress, and are marks of people from the carriage era to the automobile industry era. In order to meet the comfort, control stability and dynamic property of the automobile, people continuously study and innovate the tire, and continuously promote the progress and innovation of the tire industry.
Along with the progress of society, people have higher and higher dependence on automobiles and higher requirements on safety of vehicles. Wherein, when the chemical substances are attached on the rubber tire, the chemical substances gradually corrode the rubber tire, thereby promoting the deformation of the rubber tire. When the automobile runs, the deformation of the rubber tire can cause the automobile to be unstable, so that the automobile body is caused to shake, the abrasion of the rubber tire is further accelerated, and hidden danger is brought to running safety.
Disclosure of Invention
In order to overcome the defect of poor chemical resistance of the rubber tire, the application provides a corrosion-resistant particle modified rubber material, a preparation process thereof and the rubber tire.
The corrosion-resistant particle modified rubber material comprises the following raw materials in parts by weight: 90-110 parts of rubber matrix, 30-50 parts of corrosion-resistant particles, 10-20 parts of carbon black, 1-3 parts of silane coupling agent, 1-3 parts of accelerator and 2-3 parts of sulfur, wherein the corrosion-resistant particles are obtained by blending chloroprene rubber and chlorosulfonated polyethylene.
The neoprene molecular chain contains polar chlorine atom groups, so that on one hand, double bonds can be protected to reduce the activity of the neoprene molecular chain, and on the other hand, the neoprene molecular chain can well stabilize the nonpolar substances, so that the neoprene has excellent light resistance, heat resistance, aging resistance, oil resistance, chemical corrosion resistance, thermo-oxidative aging resistance, weather resistance and flame resistance.
The molecular structure of chlorosulfonated polyethylene has excellent saturation, and the chlorine atoms have strong shielding effect on molecular chains, so that rubber molecules are not easy to be disturbed by external fields, and the reactivity of the chlorosulfonated polyethylene is relatively low due to higher dissociation energy of single carbon-carbon bonds, namely the chlorosulfonated polyethylene has excellent chemical resistance.
When neoprene and chlorosulfonic acid polyethylene are used as raw materials of corrosion-resistant particles and added to a rubber matrix, the prepared rubber tire has extremely excellent chemical corrosion resistance, so that when chemical substances are attached to the rubber tire, the corrosion effect of the chemical substances on the rubber tire is relatively low, the possibility of deformation of the rubber tire is effectively reduced, and the driving safety of an automobile is effectively improved.
Preferably, the corrosion-resistant particles comprise the following raw materials in parts by weight: 40-60 parts of neoprene, 40-60 parts of chlorosulfonated polyethylene and 10-20 parts of m-xylylenediamine.
The m-xylene diamine has both aliphatic amine units and aromatic ring units, and the aliphatic amine units and the aromatic ring units have extremely excellent chemical resistance, solvent resistance and heat resistance, so that the corrosion-resistant particles can further improve the chemical resistance of the rubber tire, and the influence of chemical substances on the rubber tire is effectively reduced.
Preferably, the corrosion-resistant particles further comprise 10-20 parts of metal oxide, wherein the metal oxide is one of zinc oxide, aluminum oxide and copper oxide.
The tertiary carbon allyl chloride in neoprene can undergo a sulfidation reaction with metal oxides to form ether linkage crosslinks. The sulfenyl chloride group on the molecular chain of chlorosulfonic acid polyethylene is firstly cracked through free radicals, and sulfur and an accelerator can react with the dehydrogenated rubber chain to generate a cross-linking bond, so that a real sulfur bridge is formed. The chemical resistance of the rubber tire can be effectively improved by the two crosslinking modes, and the influence of chemical substances on the rubber tire can be effectively reduced.
Meanwhile, because the ether bond alkali resistance is good, and the sulphur bridge acid resistance is good, when the weight ratio of the chloroprene rubber to the chlorosulfonic acid polyethylene is 1:1, the acid and alkali resistance of the rubber tire is relatively better, and the influence of chemical substances on the rubber tire is further reduced.
Preferably, the metal oxide is one of zinc oxide and aluminum oxide.
The zinc oxide and the aluminum oxide are amphoteric oxides, and can react with acid and alkali, so that the rubber tire is promoted to have better acid and alkali resistance, and the chemical corrosion resistance of the rubber tire is promoted to be greatly improved.
Preferably, the corrosion resistant particles further comprise 10-15 parts of a plasticizer, wherein the plasticizer is one or a mixture of two of stearic acid and palmitoleic acid.
Preferably, the plasticizer is a mixture of stearic acid and palmitoleic acid, and the metal oxide is zinc oxide.
When stearic acid is used together with zinc oxide, zinc oxide and accelerator form zinc salt complex, and zinc salt complex has strong polarization ability, and can promote the cracking of sulfur ring molecules and promote the vulcanization of rubber. Meanwhile, stearic acid generated by the coordination of stearic acid and zinc oxide can be more simply and conveniently dispersed in a rubber system. While palmitoleic acid has unsaturated double bonds, the unsaturated double bonds have relatively good adhesion to metals, so that the possibility that metal oxides are separated from rubber tires is effectively reduced.
In a second aspect, the application provides a preparation method of a corrosion-resistant particle modified rubber material, which adopts the following technical scheme:
The preparation method of the corrosion-resistant particle modified rubber material comprises the following steps:
primary banburying: mixing the rubber matrix, the corrosion-resistant particles, the carbon black, the silane coupling agent and the accelerator in an banburying way to obtain a modified rubber base material;
Secondary banburying: adding sulfur into the modified rubber base material for banburying and mixing, and then performing press vulcanization to obtain the corrosion-resistant particle modified rubber material.
The repeated banburying operation mode can effectively improve the service performance and the service range of the rubber product.
Preferably, during a small sample experiment, the sulfur subjected to secondary banburying is added into an internal mixer through an automatic feeding device;
the automatic feeding device comprises a base, a driving assembly arranged at the upper end of the base, a pressing balance arranged at the output end of the driving assembly, a rotating frame rotatably connected to the bottom of the base and a feeding funnel arranged on the rotating frame, wherein the pressing balance is movably inserted into the feeding end of the internal mixer, and the discharging end of the feeding funnel is in butt joint with the upper end face of the base;
The lower pressure balance is provided with a driving rack, the base is rotatably connected with a rotating shaft, and the rotating shaft is provided with a driving gear and a first bevel gear; the rotating frame is provided with a rotating rod, the rotating rod is provided with a second bevel gear, the driving rack is meshed with the driving gear, and the first bevel gear is meshed with the second bevel gear;
The driving assembly is electrically connected with the internal mixer, when sulfur needs to be added, the internal mixer starts the driving assembly at regular time, and the driving assembly controls the lower pressure balance to move upwards and separate from a charging end of the internal mixer, and meanwhile drives the driving rack to slide; the driving rack drives the rotating shaft to rotate through the driving gear, and the rotating shaft drives the rotating rod to rotate through the first bevel gear and the second bevel gear, so that the rotating frame is driven to rotate and the discharging end of the charging hopper is transferred to the feeding end of the internal mixer;
After the sulfur is added, the driving assembly controls the lower pressure scale to move downwards, and meanwhile drives the driving rack to slide; the driving rack drives the rotating shaft to reversely rotate through the driving gear, the rotating shaft drives the rotating rod to reversely rotate through the first bevel gear and the second bevel gear, the rotating frame is further driven to reversely rotate, the discharging end of the charging hopper is plugged again, and the lower pressure scale plugs the feeding end of the internal mixer again.
Due to the existence of the automatic feeding device, when a worker performs banburying on the corrosion-resistant particle modified rubber material, the automatic feeding device can automatically distribute, add and mix raw materials as long as the worker performs one-time feeding operation, and labor is effectively saved.
Preferably, the driving assembly comprises a driving motor, a bidirectional screw, a screw nut and a sliding block, wherein the driving motor is fixedly connected to the upper end of the base, the driving motor is electrically connected with the internal mixer, the bidirectional screw is fixedly connected to the output end of the driving motor, the sliding block is slidingly connected to the side wall of the base, the screw nut is fixedly connected to the sliding block, the bidirectional screw is in threaded connection with the screw nut, and the pressing scale is fixedly connected to the sliding block.
After banburying of the internal mixer for a period of time, the internal mixer automatically starts a driving motor, the driving motor drives a bidirectional screw rod to rotate, the bidirectional screw rod drives a sliding block to move through a screw rod nut, and the sliding block moves to drive a lower pressure balance to move up and down, so that the operation difficulty of the lower pressure balance is effectively reduced.
In a third aspect, the present application provides a rubber tire, which adopts the following technical scheme:
a rubber tire is prepared from the corrosion-resistant particle modified rubber material.
In summary, the application has the following beneficial effects:
1. When neoprene and chlorosulfonic acid polyethylene are added to a rubber matrix as raw materials of corrosion resistant particles, the prepared rubber tire has extremely excellent chemical corrosion resistance.
2. The m-xylylenediamine has both aliphatic amine units and aromatic ring units, and the aliphatic amine units and the aromatic ring units have extremely excellent chemical resistance, solvent resistance and heat resistance, so that the corrosion-resistant particles are promoted to further improve the chemical resistance of the rubber tire.
3. Due to the existence of the automatic feeding device, when a worker performs banburying on the corrosion-resistant particle modified rubber material, the automatic feeding device can automatically distribute, add and mix raw materials as long as the worker performs one-time feeding operation, and labor is effectively saved.
Drawings
FIG. 1 is a schematic diagram of an automated charging apparatus in combination with an internal mixer;
FIG. 2 is a schematic view of the structure of the automatic feeding apparatus;
fig. 3 is a schematic structural view of the driving assembly.
Reference numerals: 1. a base; 2. a drive assembly; 3. pressing down a balance; 4. a rotating frame; 5. a charging hopper; 6. a drive rack; 7. a rotation shaft; 11. an upper plate; 12. a side plate; 13. a lower plate; 14. a slide rail; 21. a driving motor; 22. a bidirectional screw rod; 23. a lead screw nut; 24. a sliding block; 41. a rotating lever; 42. a second bevel gear; 71. a drive gear; 72. a first bevel gear.
Detailed Description
The present application will be described in further detail with reference to fig. 1 to 3, examples and comparative examples.
Raw materials
Natural rubber CAS:9006-04-6; styrene butadiene rubber CAS:9003-55-8; butadiene rubber CAS:9003-17-2; neoprene CAS:9010-98-4; chlorosulfonated polyethylene CAS:68037-39-8; m-xylylenediamine CAS:1477-55-0; zinc oxide CAS:1314-13-2; alumina CAS:1344-28-1; copper oxide CAS:1317-38-0; stearic acid CAS:57-11-4; palmitoleic acid CAS:373-49-9; silane coupling agent KH-570 accelerator N-cyclohexyl-2-benzothiazole sulfenamide CAS:95-33-0; sulfur CAS:7704-34-9;
Preparation example
Preparation example 1
A corrosion resistant pellet is obtained by blending 50g of chloroprene rubber, 50g of chlorosulfonated polyethylene, 15g of m-xylylenediamine, 13g of stearic acid and 15g of zinc oxide.
PREPARATION EXAMPLES 2-3
The difference from preparation example 1 is that the amounts of the components added in preparation examples 2 to 3 are different, as shown in Table 1.
TABLE 1 addition amount of each component per gram in preparation examples 1 to 3
| Preparation example 1 | Preparation example 2 | Preparation example 3 | |
| Neoprene rubber | 50 | 40 | 60 |
| Chlorosulfonated polyethylene | 50 | 60 | 40 |
| M-xylylenediamine | 15 | 10 | 20 |
| Stearic acid | 13 | 15 | 10 |
| Zinc oxide | 15 | 20 | 10 |
PREPARATION EXAMPLES 4 to 7
The difference from preparation example 1 is that the amounts of chloroprene rubber and chlorosulfide polyethylene added are different, as shown in Table 2.
TABLE 2 addition amount of chloroprene rubber and chlorosulfided polyethylene per gram in PREPARATIVE EXAMPLE 1 and PREPARATIVE EXAMPLES 4-7
| Preparation example 1 | Preparation example 4 | Preparation example 5 | Preparation example 6 | Preparation example 7 | |
| Neoprene rubber | 50 | 30 | 40 | 60 | 70 |
| Chlorosulfurized polyethylene | 50 | 70 | 60 | 40 | 30 |
Preparation example 8
The difference from preparation example 1 is that m-xylylenediamine is not added.
Preparation example 9
The difference from preparation example 1 is that stearic acid is replaced with palmitoleic acid in the same addition amount.
Preparation example 10
The difference from preparation example 1 is that stearic acid is replaced with a mixture of stearic acid and palmitoleic acid, and the mass ratio of stearic acid to palmitoleic acid is 1:1.
PREPARATION EXAMPLE 11
The difference from preparation example 1 is that stearic acid is not added.
Preparation example 12
The difference from preparation 10 is that zinc oxide is replaced with the same added amount of aluminum oxide.
Preparation example 13
The difference from preparation example 10 is that zinc oxide was replaced with copper oxide in the same addition amount.
PREPARATION EXAMPLE 14
The difference from preparation example 10 is that zinc oxide was not added.
Examples
Example 1
A corrosion-resistant particle modified rubber material is prepared by banburying and press vulcanizing 100g of a rubber matrix, 40g of preparation example 1, 15g of carbon black, 2g of silane coupling agent KH-570, 2g of accelerator N-cyclohexyl-2-benzothiazole sulfenamide and 2.5g of sulfur;
the rubber matrix is prepared by blending natural rubber, styrene-butadiene rubber and butadiene rubber, and the mass ratio of the natural rubber to the styrene-butadiene rubber to the butadiene rubber is 4:3:3.
The preparation method of the corrosion-resistant particle modified rubber material comprises the following steps:
Primary banburying: adding a rubber matrix, corrosion-resistant rubber particles, carbon black, a silane coupling agent and an accelerator into an internal mixer, and then carrying out internal mixing at 110 ℃ for 10min to obtain a modified rubber base material;
Secondary banburying: adding sulfur into the modified rubber base stock, then carrying out banburying and mixing for 10min at the temperature of 110 ℃, and then carrying out vulcanization at the temperature of 160 ℃ and the pressure of 40MPa to obtain the corrosion-resistant particle modified rubber material.
In the small sample experiment, sulfur is added into an internal mixer through an automatic feeding device in secondary internal mixing.
Referring to fig. 1 and 2, the automatic feeding device comprises a base 1, a driving assembly 2, a pressing balance 3, a rotating frame 4 and a charging hopper 5, wherein the base 1 comprises an upper plate 11, a side plate 12 and a lower plate 13, the upper plate 11 and the lower plate 13 are fixedly connected to two ends of the side plate 12, and the side plate 12 is fixedly connected to an internal mixer.
The driving component 2 is arranged on the upper plate 11, the lower pressure balance 3 is arranged at the output end of the driving component 2, and the driving component 2 forces the lower pressure balance 3 to be movably inserted into the feeding end of the internal mixer. The rotating frame 4 is rotatably connected to the upper end face of the lower plate 13, the charging hopper 5 is mounted on the rotating frame 4, and the discharging end of the charging hopper 5 is abutted to the upper end face of the lower plate 13.
The upper end face of the upper pressure scale is fixedly connected with a driving rack 6, the side wall of the upper plate 11 is rotatably connected with a rotating shaft 7, and the rotating shaft 7 is fixedly connected with a driving gear 71 and a first bevel gear 72. The upper end surface of the rotating frame 4 is fixedly connected with a rotating rod 41, the upper end of the rotating rod 41 is fixedly connected with a second bevel gear 42, the driving rack 6 is meshed with the driving gear 71, and the first bevel gear 72 is meshed with the second bevel gear 42.
Referring to fig. 2 and 3, the driving assembly 2 includes a driving motor 21, a bi-directional screw 22, a screw nut 23, and a sliding block 24, the driving motor 21 is fixedly connected to an upper end surface of the upper plate 11, and the driving motor 21 is electrically connected to the internal mixer. The bidirectional screw rod 22 penetrates through the upper plate 11 and is fixedly connected with the output end of the driving motor 21, and one end, far away from the driving motor 21, of the bidirectional screw rod 22 is rotatably connected with the lower plate 13. The screw nut 23 is fixedly connected to the sliding block 24, the bidirectional screw 22 is in threaded connection with the screw nut 23, and the upper end of the lower balance 3 is fixedly connected to one end, away from the side plate 12, of the sliding block 24. The side wall of the side plate 12 is provided with a slide rail 14, and a sliding block 24 is connected in the slide rail 14 in a sliding way.
When it is desired to prepare the corrosion-resistant particle-modified rubber, the worker may first add the rubber matrix, the corrosion-resistant rubber particles, the carbon black, the silane coupling agent and the accelerator to the internal mixer, then insert the lower press scale 3 into the feed end of the internal mixer, and then set two times on the internal mixer.
When the first time is reached, the internal mixer drives the driving motor 21 to start, the driving motor 21 drives the bidirectional screw rod 22 to rotate, the bidirectional screw rod 22 drives the sliding block 24 to move upwards through the screw rod nut 23, and the sliding block 24 moves to drive the lower pressure balance 3 to move upwards, so that the feeding end of the internal mixer is opened.
Meanwhile, the upward movement of the lower pressure balance 3 drives the driving rack 6 to slide, the driving rack 6 drives the rotating shaft 7 to rotate through the driving gear 71, the rotating shaft 7 drives the rotating rod 41 to rotate through the first umbrella tooth 72 and the second umbrella tooth 42, and then the rotating frame 4 is driven to rotate and the discharging end of the charging hopper 5 is transferred to the feeding end of the internal mixer, so that sulfur charging operation is automatically realized.
Then, the driving motor 21 continues to drive the bidirectional screw rod 22 to select, at this time, the bidirectional screw rod 22 drives the sliding block 24 to move downwards, and the movement of the sliding block 24 drives the lower balance 3 to move downwards, so that the feeding end of the internal mixer is closed, and the charging hopper 5 rotates to the original position again.
In this embodiment, the above-mentioned fixed connection may be a conventional fixed connection manner such as welding, bolting, or screwing. The rotary connection can be realized by adopting a conventional rotary connection mode such as pin shaft connection, bearing connection and the like according to actual selection.
Examples 2 to 14
The difference from example 1 is that preparation 1 is replaced with preparations 2 to 14 of the same addition amount.
Examples 15 to 16
The difference from example 10 is that the amounts of each component of the corrosion-resistant particle-modified rubber material added are different, as shown in Table 3.
TABLE 3 addition amount of each component per g in example 10, examples 15 to 16
| Example 10 | Example 15 | Example 16 | |
| Rubber matrix | 100 | 110 | 90 |
| Preparation example 10 | 40 | 30 | 50 |
| Carbon black | 15 | 20 | 10 |
| Silane coupling agent | 2 | 3 | 1 |
| Accelerating agent | 2 | 1 | 3 |
| Sulfur, sulfur and its preparation method | 2.5 | 3 | 2 |
Comparative example
Comparative example 1
The difference from example 1 is that preparation example 1 was not added.
Comparative example 2
The difference from comparative example 1 is that 40g of neoprene was also added.
Comparative example 3
The difference from comparative example 1 is that 40g of chlorosulfonated polyethylene was also added.
Comparative example 4
The difference from comparative example 1 is that 20g of chloroprene rubber and 20g of chlorosulfonated polyethylene are also added.
Application examples
Application examples 1 to 16
A rubber tire is prepared by assembling and pressurizing in examples 1-16.
Comparative examples of application
Comparative examples 1 to 4 were used
A rubber tire is prepared by assembling and pressurizing comparative examples 1-4.
Performance test
Detection method
1. Acid and alkali resistance test
Referring to GB/T528-1998 "determination of tensile stress Strain Properties of vulcanized rubber or thermoplastic rubber", 9 samples were cut out from examples 1 to 16 and comparative examples 1 to 4, respectively, three of which were directly subjected to tensile test, followed by averaging to obtain elongation at break W 0.
3 Samples are soaked in 30% sodium hydroxide aqueous solution for 24 hours, then the three samples are subjected to tensile test and averaged to obtain alkali wash elongation at break W 1, and finally alkali resistance W Alkali-proof ＝W0-W1 is obtained through calculation.
3 Samples were immersed in 0.1mol hydrochloric acid aqueous solution for 24 hours, then the three samples were subjected to tensile test and averaged to obtain an acid-washed elongation at break W 2, and finally the acid resistance W Acid-resistant ＝W0-W2 was calculated.
Detection result: the results of the tests of examples 1 to 16 and comparative examples 1 to 4 are shown in Table 4.
TABLE 4 acid and alkali resistance Table/%
As can be seen from the combination of comparative examples 1 to 4 and table 4, the change in elongation at break in the acid-base environment was significantly reduced in comparative examples 2 to 3, and further reduced in comparative example 4, relative to comparative example 1, thereby indicating that both the chloroprene rubber and chlorosulfonated polyethylene have an effect of improving the chemical resistance of the corrosion-resistant particle-modified rubber material. When neoprene and chlorosulfonated polyethylene are mixed, the corrosion-resistant particle modified rubber material has the most excellent chemical resistance.
It can be seen from the combination of examples 1 to 3 and comparative examples 1 to 4 and the combination of Table 4 that the amounts of change in elongation at break in acid-base environments of examples 1 to 3 are significantly reduced as compared with comparative examples 1 to 4, thereby demonstrating that m-xylylenediamine, stearic acid and zinc oxide all have chemical resistance improving effects on the corrosion resistant particle-modified rubber material.
It can be seen from the combination of examples 1, 4-7 and Table 4 that the alkali resistance of the corrosion-resistant particle-modified rubber material is gradually improved as the addition amount of chloroprene rubber is increased. With the increase of the addition amount of the chlorosulfide polyethylene, the acid resistance of the corrosion-resistant particle modified rubber material is gradually improved.
The reason for this is that tertiary allyl chloride in neoprene can undergo a sulfidation reaction with metal oxides to form ether linkage crosslinks. The sulfenyl chloride group on the molecular chain of chlorosulfonic acid polyethylene is firstly cracked through free radicals, and sulfur and the accelerator can react with the dehydrogenated rubber chain to generate a cross-linking bond, so that a sulfur bridge is formed. And the ether bond has good alkali resistance and the sulphur bridge has good acid resistance.
As can be seen from the combination of example 1, example 8 and table 4, the amount of change in elongation at break under acid-base environment of example 8 is significantly increased as compared with example 1, thereby demonstrating that metaxylylenediamine has an effect of improving chemical resistance performance on the corrosion resistant particle-modified rubber material.
The reason for this is that m-xylylenediamine has both aliphatic amine units and aromatic ring units, which are excellent in chemical resistance, solvent resistance and heat resistance.
It can be seen from the combination of examples 1, 9-11 and table 4 that the elongation at break change in the acid-base environment is significantly improved in example 11 as compared to example 1. Whereas the elongation at break change in the acid-base environment of example 9 was slightly effectively reduced relative to example 11. Whereas the elongation at break change in the acid-base environment of example 10 was significantly reduced.
The reason is that when stearic acid is used together with zinc oxide, zinc oxide and accelerator form zinc salt complex, and zinc salt complex has strong polarization ability, and can promote the cracking of sulfur ring molecules and promote the vulcanization of rubber. Meanwhile, stearic acid generated by the coordination of stearic acid and zinc oxide can be more simply and conveniently dispersed in a rubber system. While palmitoleic acid has unsaturated double bonds, the unsaturated double bonds have relatively good adhesion to metals, so that the possibility that metal oxides are separated from the corrosion-resistant particle modified rubber is effectively reduced.
It can be seen from the combination of examples 10, 12-14 and Table 4 that the elongation at break change in the acid-base environment is significantly improved in example 14 as compared to example 10. Meanwhile, the change in elongation at break in acid-base environment of example 12 was slightly increased, and the change in elongation at break in acid-base environment of example 13 was further increased, as compared with example 10. The reason is that zinc oxide and aluminum oxide are amphoteric oxides and can react with acid and alkali, so that the corrosion-resistant particle modified rubber is promoted to have better acid and alkali resistance.
As can be seen from the combination of examples 10 and examples 15 to 16 and Table 4, the elongation at break change in the acid-base environment of examples 15 to 16 is significantly improved as compared with example 10, thereby demonstrating that the components of the corrosion-resistant particle-modified rubber have more excellent acid-base resistance at the ratio of example 10,
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (6)
1. The corrosion-resistant particle modified rubber material is characterized by comprising the following raw materials in parts by weight: 90-110 parts of rubber matrix, 30-50 parts of corrosion-resistant particles, 10-20 parts of carbon black, 1-3 parts of silane coupling agent, 1-3 parts of accelerator and 2-3 parts of sulfur, wherein the corrosion-resistant particles are obtained by blending chloroprene rubber and chlorosulfonated polyethylene;
the corrosion-resistant particles comprise the following raw materials in parts by weight: 40-60 parts of neoprene, 40-60 parts of chlorosulfonated polyethylene and 10-20 parts of m-xylylenediamine;
The corrosion-resistant particles also comprise 10-20 parts of metal oxide, wherein the metal oxide is one of zinc oxide, aluminum oxide and copper oxide;
The corrosion-resistant particles also comprise 10-15 parts of plasticizer, wherein the plasticizer is one or a mixture of two of stearic acid and palmitoleic acid.
2. The corrosion resistant particle modified rubber material of claim 1, wherein: the plasticizer is a mixture of stearic acid and palmitoleic acid, and the metal oxide is zinc oxide.
3. A method for preparing the corrosion resistant particle-modified rubber material as claimed in any one of claims 1 to 2, comprising the steps of:
primary banburying: mixing the rubber matrix, the corrosion-resistant particles, the carbon black, the silane coupling agent and the accelerator in an banburying way to obtain a modified rubber base material;
Secondary banburying: adding sulfur into the modified rubber base material for banburying and mixing, and then performing press vulcanization to obtain the corrosion-resistant particle modified rubber material.
4. A method for preparing the corrosion resistant particle-modified rubber material according to claim 3, wherein: in a small sample experiment, the secondary banburying sulfur is added into an internal mixer through an automatic feeding device;
The automatic feeding device comprises a base (1), a driving assembly (2) arranged at the upper end of the base (1), a pressing balance (3) arranged at the output end of the driving assembly (2), a rotating frame (4) rotatably connected to the bottom of the base (1) and a feeding funnel (5) arranged on the rotating frame (4), wherein the pressing balance (3) is movably inserted into the feeding end of the internal mixer, and the discharging end of the feeding funnel (5) is in butt joint with the upper end face of the base (1);
A driving rack (6) is arranged on the lower pressure balance (3), a rotating shaft (7) is rotatably connected to the base (1), and a driving gear (71) and a first bevel gear (72) are arranged on the rotating shaft (7); a rotating rod (41) is arranged on the rotating frame (4), a second bevel gear (42) is arranged on the rotating rod (41), the driving rack (6) is meshed with the driving gear (71), and the first bevel gear (72) is meshed with the second bevel gear (42);
the driving assembly (2) is electrically connected with the internal mixer, when sulfur needs to be added, the internal mixer starts the driving assembly (2) at regular time, the driving assembly (2) controls the lower pressure scale (3) to move upwards and separate from a charging end of the internal mixer, and meanwhile, the driving rack (6) is driven to slide; the driving rack (6) drives the rotating shaft (7) to rotate through the driving gear (71), and the rotating shaft (7) drives the rotating rod (41) to rotate through the first umbrella teeth (72) and the second umbrella teeth (42), so that the rotating frame (4) is driven to rotate and the discharging end of the charging hopper (5) is transferred to the feeding end of the internal mixer;
After the sulfur is added, the driving assembly (2) controls the downward movement of the pressing scale (3) and drives the driving rack (6) to slide at the same time; the driving rack (6) drives the rotating shaft (7) to reversely rotate through the driving gear (71), the rotating shaft (7) drives the rotating rod (41) to reversely rotate through the first umbrella teeth (72) and the second umbrella teeth (42), the rotating frame (4) is further driven to reversely rotate and plug the discharge end of the charging hopper (5) again, and the lower pressure balance (3) plugs the feed end of the internal mixer again.
5. The method for preparing the corrosion-resistant particle-modified rubber material according to claim 4, wherein: the driving assembly (2) comprises a driving motor (21), a bidirectional screw (22), a screw nut (23) and a sliding block (24), wherein the driving motor (21) is fixedly connected to the upper end of the base (1), the driving motor (21) is electrically connected with the internal mixer, the bidirectional screw (22) is fixedly connected to the output end of the driving motor (21), the sliding block (24) is slidingly connected to the side wall of the base (1), the screw nut (23) is fixedly connected to the sliding block (24), the bidirectional screw (22) is in threaded connection with the screw nut (23), and the pressing balance (3) is fixedly connected to the sliding block (24).
6. A rubber tyre prepared from the corrosion resistant particulate modified rubber material of any one of claims 1 to 2.
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