CN108976518B - Ozone aging resistant rubber hose outer rubber material and preparation method thereof - Google Patents
Ozone aging resistant rubber hose outer rubber material and preparation method thereof Download PDFInfo
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/32—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur
- C08L23/34—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur by chlorosulfonation
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Abstract
The invention discloses an ozone aging resistant outer rubber material for a rubber hose and a preparation method thereof, wherein the outer rubber material for the rubber hose comprises the following components in parts by weight: 50-70 parts of rubber-plastic alloy, 30-50 parts of chlorosulfonated polyethylene, 1.5-2.5 parts of nano zinc oxide, 6-8 parts of light magnesium oxide, 7.5-10.5 parts of adhesive, 0.5-1.5 parts of stearic acid, 3-5.5 parts of anti-aging agent, 0.65-1.15 parts of accelerator, 1-3 parts of microcrystalline wax, 40-60 parts of carbon black, 10-20 parts of silicon dioxide, 20-30 parts of reinforcing agent, 20-30 parts of light calcium carbonate, 35-45 parts of dioctyl ester and 1.6-2.2 parts of sulfur. The outer rubber material for the rubber hose has excellent ozone aging resistance and heat resistance, is not easy to crack, can effectively prolong the service life of the rubber hose, and has the advantages of simple preparation method, easy operation and low production cost.
Description
Technical Field
The invention relates to a rubber material, in particular to an ozone aging resistant outer rubber material for a rubber hose and a preparation method thereof.
Background
In recent years, with the rapid development of automobile manufacturing, oil exploitation, agricultural water conservancy, marine chemical industry and building industry, the market demand of rubber hoses is increasing. The rubber hose is a hose made of rubber ingredients, and is commonly used for conveying fluids such as gas, liquid and the like. The rubber hose generally consists of an inner rubber layer, an outer rubber layer and a framework layer, wherein the inner rubber layer directly bears the abrasion and the erosion of a conveying medium and prevents the conveying medium from leaking; the framework layer enables the bearing layer of the rubber hose to endow the pipe body with strength and rigidity; the outer rubber layer protects the framework layer from being damaged and corroded by the outside. The rubber hose is widely applied to the fields of automobiles, petroleum, engineering machinery, household appliances, aerospace and the like, the external environment of the rubber hose is complex and various, and the outer rubber layer is a protective layer of the rubber hose, is directly contacted with the external environment and is influenced by sunlight and hot air for a long time, so that the outer rubber layer is required to have good mechanical property and good aging resistance. However, the existing rubber hose has poor ozone aging resistance, is easily aged and cracked under the influence of ozone, ultraviolet rays and hot air, and has short service life.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an ozone aging resistant rubber hose outer rubber material and a preparation method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: an ozone aging resistant outer rubber material for rubber hoses comprises the following components in parts by weight: 50-70 parts of rubber-plastic alloy, 30-50 parts of chlorosulfonated polyethylene, 1.5-2.5 parts of nano zinc oxide, 6-8 parts of light magnesium oxide, 7.5-10.5 parts of adhesive, 0.5-1.5 parts of stearic acid, 3-5.5 parts of anti-aging agent, 0.65-1.15 parts of accelerator, 1-3 parts of microcrystalline wax, 40-60 parts of carbon black, 10-20 parts of silicon dioxide, 20-30 parts of reinforcing agent, 20-30 parts of light calcium carbonate, 35-45 parts of dioctyl ester and 1.6-2.2 parts of sulfur.
Preferably, the rubber-plastic alloy comprises at least one of rubber-plastic alloy M58 and rubber-plastic alloy N7030.
The rubber-plastic alloy is a material which takes nitrile rubber as a main base material and is effectively modified by adding part of polyvinyl chloride, and has better ozone resistance, chemical resistance, flame retardance, wear resistance, oil resistance and processability. Wherein, the rubber-plastic alloy M58 has stable Mooney, high strength and good processing performance; the rubber-plastic alloy N7030 has good adhesive property and high H extraction force for bonding with the steel wire. Chlorosulfonated polyethylene (CSM) is a special rubber prepared by chlorination and chlorosulfonation of polyethylene, has excellent ozone resistance, good color stability in sunlight, and good colorability, oil resistance, heat resistance, oxidation resistance, weather resistance, corrosion resistance, flame resistance, wear resistance and toughness. The rubber-plastic alloy and the chlorosulfonated polyethylene are used together, so that the processing performance of the material can be improved, the tensile strength of the outer rubber can be improved, and the bonding strength between the outer rubber and the steel wire can be improved.
Preferably, the binder includes at least one of binders JT-100 and RC. Compared with other adhesives, the adhesive JT-100 is more favorable for improving the strength and the hardness of the outer adhesive and improving the processability and the aging property. The adhesive RC, as part of the m-methyl-white adhesion system, has better dispersibility and processability than the adhesive a.
More preferably, the binder includes binder JT-100 and binder RC. The inventor finds that the JT-100 and the RC can generate a synergistic effect when used in combination, improve the bonding effect among material components during mixing and further improve the performance of the outer rubber material through a series of intensive researches. Preferably, the weight part ratio of the adhesive JT-100 to the adhesive RC is (3-5) to (4.5-5.5); the inventor finds that the adhesive JT-100 and the adhesive RC produce better synergistic effect when used together in the weight ratio range. Most preferably, the weight part ratio of the adhesive JT-100 to the adhesive RC is 3: 5; in this case, the adhesive JT-100 works best with the adhesive RC.
Preferably, the antioxidant comprises at least one of antioxidant 4010NA, antioxidant NBC and antioxidant BLE. The anti-aging agent 4010NA (chemical name: N-isopropyl-N' -phenyl-p-phenylenediamine) is low in toxicity, good in dispersity in rubber, free of influence on vulcanization, excellent in ozone aging resistance and flex cracking resistance, good in protection effect on thermal oxidation photo-aging, capable of inhibiting catalytic aging of harmful metals such as copper and manganese, and capable of achieving a synergistic effect in the aspect of protection effect when used together with microcrystalline paraffin. The anti-aging agent NBC (chemical name: N, N-nickel dibutyldithiocarbamate) has good stabilizing effect on light, oxygen, ozone and heat, can improve the heat resistance of the material, and has good dispersibility in rubber. The anti-aging agent BLE (chemical name: acetone and diphenylamine high-temperature condensation compound) is nontoxic, has excellent protection effects on heat, oxygen and flex fatigue, has a certain protection effect on ozone aging and weather aging, is easy to disperse in rubber materials, improves the fluidity of mixed rubber, and has a certain promotion effect on adhesion of rubber materials, metal cords and other framework materials.
More preferably, the anti-aging agent comprises anti-aging agent 4010NA, anti-aging agent NBC and anti-aging agent BLE. Through a series of intensive researches, the inventor discovers that when the anti-aging agent 4010NA, the anti-aging agent NBC and the anti-aging agent BLE are used together, a synergistic effect is generated, and the ozone aging resistance, the heat resistance and the service life of the material can be obviously improved. Preferably, the weight part ratio of the anti-aging agent 4010NA, the anti-aging agent NBC and the anti-aging agent BLE is (1-2): (0.5-1): 1.5-2.5); the inventor finds that the synergistic effect is better when the anti-aging agent 4010NA, the anti-aging agent NBC and the anti-aging agent BLE are used together in the weight part ratio range. Most preferably, the weight part ratio of the anti-aging agent 4010NA, the anti-aging agent NBC and the anti-aging agent BLE is 1:1: 1.7; in this case, the synergistic effect of the combination of the antioxidant 4010NA, the antioxidant NBC and the antioxidant BLE is the best.
Preferably, the accelerator comprises at least one of accelerator DM, accelerator DZ. The accelerator DM (chemical name: 2,2' -dithiodibenzothiazyl) has obvious after-effect, cannot be vulcanized early, is safe to operate, can effectively improve the aging resistance of materials, and can be activated when being used together with the anti-aging agent 4010 NA. The accelerant DZ (chemical name: N, N-dicyclohexyl-2-benzothiazole sulfonamide) has excellent scorch-proof performance, long scorch-proof time and better mechanical property and dynamic property.
More preferably, the accelerators include accelerator DM and accelerator DZ. The inventor finds that when the accelerator DM and the accelerator DZ are used together, a synergistic effect is generated, the rubber material can obtain a proper vulcanization speed, the over-sulfur and under-sulfur phenomena are reduced, and the rationality of the material vulcanization process and the performance of a material finished product are further improved. The inventor also finds that when the accelerator DM and the accelerator DZ are used together with the antioxidant 4010NA, the antioxidant NBC and the antioxidant BLE, the ozone resistance and the heat resistance of the outer rubber material can be further improved.
Preferably, the weight part ratio of the accelerator DM to the accelerator DZ is (1.5-3.5) to (5-8); the inventor finds that the synergistic effect is better when the accelerator DM and the accelerator DZ are matched and used in the weight part ratio range. Most preferably, the weight part ratio of the accelerator DM to the accelerator DZ is 3: 7; in this case, the synergistic effect of the combination of accelerator DM and accelerator DZ is the best.
Preferably, the carbon black includes at least one of carbon black N660 and carbon black N330. The carbon black N660 (also called general furnace black) has high stress at definite elongation, good processing performance and flexibility resistance, low extrusion heat generation and good processing safety. The carbon black N330 can endow rubber material with better tensile property, tear resistance, wear resistance and elasticity, and has better dispersion and extrusion performance in the rubber material, so that the surface of the rubber compound is bright.
Preferably, the strengthening agent comprises a strengthening agent HLT. The reinforcing agent HLT has excellent electrical insulation performance, acid solubility resistance, various solvent and oil resistance, can improve the tensile strength and the stress at definite elongation of rubber materials, reduce the hardness, endow products with good stability, and can partially replace carbon black and reduce the product cost.
Preferably, the silica comprises silica TX-80. The silicon dioxide TX-80 not only can improve the mechanical property of the sizing material and the processing property of the sizing material, but also can improve the bonding effect of the outer rubber and the steel wire and can reduce the material cost. The performance of the silicon dioxide TX-80 is equivalent to that of white carbon black, but the cost is only about 60 percent of the price of the white carbon black, so that the production cost can be greatly reduced.
The components of the formula have a synergistic effect, and the obtained outer rubber material has excellent ozone aging resistance and heat resistance, can effectively protect the rubber hose, and prolongs the service life of the rubber hose.
Preferably, the ozone aging resistant rubber hose outer rubber material comprises the following components in parts by weight: 70 parts of rubber-plastic alloy, 30 parts of chlorosulfonated polyethylene, 1.5 parts of nano zinc oxide, 6 parts of light magnesium oxide, JT-1004 parts of adhesive, 5 parts of adhesive RC, 1 part of stearic acid, 1 part of anti-aging agent 4010NA, 1 part of anti-aging agent NBC, 1.7 parts of anti-aging agent, 0.3 part of accelerator DM, 0.7 part of accelerator DZ, 2 parts of microcrystalline paraffin, 60 parts of carbon black, 5 parts of silicon dioxide TX-8015, 30 parts of reinforcing agent HLT, 20 parts of light calcium carbonate, 40 parts of dioctyl ester and 1.8 parts of sulfur. The inventor finds out through a series of intensive researches that the comprehensive performance of the outer rubber material prepared by the formula is optimal.
In addition, the invention also aims to provide a preparation method of the ozone aging resistant rubber hose outer rubber material, which comprises the following steps:
(1) putting the rubber-plastic alloy and chlorosulfonated polyethylene into an internal mixer, and carrying out densification for 1.5-3 min at the densification temperature of 110-130 ℃;
(2) then putting the nano zinc oxide, light magnesium oxide, adhesive JT-100, stearic acid, anti-aging agent 4010NA, anti-aging agent NBC, anti-aging agent BLE, accelerator DM, microcrystalline wax, carbon black, silicon dioxide TX-80, reinforcing agent HLT, light calcium carbonate and dioctyl phthalate into an internal mixer, carrying out densification for 2.5-3.5 min at the densification temperature of 110-130 ℃, discharging rubber, and standing for 4-8 h; preferably, the time for removing the glue is 0.5-1 min.
(3) Then, putting the adhesive RC, the accelerant DZ and sulfur into an internal mixer, mixing for 1-1.5 min, and discharging the mixture to be cooled and fed for later use;
(4) and extruding the mixture in a cold-feeding extruder, and vulcanizing at 148-151 ℃ to obtain the outer rubber material. Preferably, the cold feed extruder is a 120 cold feed extruder. Preferably, the vulcanization is carried out in a vulcanizing tank, and the vulcanization time is 90 min.
Compared with the prior art, the invention has the beneficial effects that: the outer rubber material for the rubber hose has excellent ozone aging resistance and heat resistance, is not easy to crack, can effectively prolong the service life of the rubber hose, and has the advantages of simple preparation method, easy operation and low production cost.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples. It should be understood that the examples are not intended to limit the scope of the present invention. The raw materials used in the present invention were all commercially available, and the sources of the raw materials used in this example are shown in the following table.
Example 1
The embodiment 1 provides an ozone aging resistant outer rubber material for a rubber hose, which comprises the following components in parts by weight: 5870 parts of rubber-plastic alloy, 30 parts of chlorosulfonated polyethylene, 1.5 parts of nano zinc oxide, 6 parts of light magnesium oxide, JT-1004 parts of adhesive, 5 parts of adhesive RC, 1 part of stearic acid, 1 part of anti-aging agent 4010NA, 1 part of anti-aging agent NBC, 1.7 parts of anti-aging agent BLE, 0.3 part of accelerator DM, 0.7 part of accelerator DZ, 2 parts of microcrystalline paraffin, 66060 parts of carbon black, TX-8015 parts of silicon dioxide, 30 parts of reinforcing agent HLT, 20 parts of light calcium carbonate, 40 parts of dioctyl ester and 1.8 parts of sulfur.
The preparation method of the outer rubber material for the rubber hose comprises the following steps:
(1) putting rubber-plastic alloy M58 and chlorosulfonated polyethylene into an internal mixer, and carrying out densification for 2min at the densification temperature of 120 ℃;
(2) then putting the nano zinc oxide, light magnesium oxide, adhesive JT-100, stearic acid, antioxidant 4010NA, antioxidant NBC, antioxidant BLE, accelerator DM, microcrystalline paraffin, carbon black, silicon dioxide TX-80, reinforcing agent HLT, light calcium carbonate and dioctyl phthalate into an internal mixer, carrying out densification for 3min at 120 ℃, discharging rubber for 0.8min, and standing for 6 h;
(3) then adding the adhesive RC, the accelerant DZ and sulfur into an internal mixer, mixing for 1.2min, and discharging cold and feeding strips for later use;
(4) then extruding the mixture in a 120 cold-feeding extruder, and vulcanizing the mixture in a vulcanizing tank at 150 ℃ for 90min to obtain the outer rubber material.
Example 2
The embodiment 2 provides an ozone aging resistant outer rubber material for a rubber hose, which comprises the following components in parts by weight: rubber plastic alloy N703060 parts, chlorosulfonated polyethylene 50 parts, nano zinc oxide 2.5 parts, light magnesium oxide 8 parts, adhesive JT-1005 parts, adhesive RC 5.5 parts, stearic acid 1.5 parts, anti-aging agent 4010NA 2 parts, anti-aging agent NBC 1 parts, anti-aging agent BLE 2.5 parts, accelerator DM 0.35 parts, accelerator DZ 0.8 parts, microcrystalline paraffin 3 parts, carbon black N66050 parts, silicon dioxide TX-8010 parts, reinforcing agent HLT 25 parts, light calcium carbonate 25 parts, dioctyl ester 35 parts and sulfur 2.2 parts.
The preparation method of the outer rubber material for the rubber hose comprises the following steps:
(1) putting rubber-plastic alloy M58 and chlorosulfonated polyethylene into an internal mixer, and milling for 3min at 130 deg.C;
(2) then putting the nano zinc oxide, light magnesium oxide, adhesive JT-100, stearic acid, antioxidant 4010NA, antioxidant NBC, antioxidant BLE, accelerator DM, microcrystalline paraffin, carbon black, silicon dioxide TX-80, reinforcing agent HLT, light calcium carbonate and dioctyl phthalate into an internal mixer, carrying out densification for 3.5min at the densification temperature of 130 ℃, discharging rubber for 1min, and standing for 8 h;
(3) then adding the adhesive RC, the accelerant DZ and sulfur into an internal mixer, mixing for 1.5min, and discharging cold and feeding strips for later use;
(4) then extruding the mixture in a 120 cold-feeding extruder, and vulcanizing the mixture in a vulcanizing tank at 151 ℃ for 90min to obtain the outer rubber material.
Example 3
The embodiment 3 provides an ozone aging resistant outer rubber material for a rubber hose, which comprises the following components in parts by weight: rubber plastic alloy N703050 parts, chlorosulfonated polyethylene 40 parts, nano zinc oxide 2 parts, light magnesium oxide 7 parts, adhesive JT-1003 parts, adhesive RC 4.5 parts, stearic acid 0.5 parts, anti-aging agent 4010NA 1 part, anti-aging agent NBC 0.5 part, anti-aging agent BLE 1.5 parts, accelerator DM 0.15 part, accelerator DZ 0.5 part, microcrystalline paraffin 1 part, carbon black N33040 parts, silicon dioxide TX-8020 parts, reinforcing agent HLT 20 parts, light calcium carbonate 30 parts, dioctyl ester 45 parts and sulfur 1.6 parts.
The preparation method of the outer rubber material for the rubber hose comprises the following steps:
(1) putting rubber-plastic alloy M58 and chlorosulfonated polyethylene into an internal mixer, and compacting for 1.5min at 110 deg.C;
(2) then putting the nano zinc oxide, the light magnesium oxide, the adhesive JT-100, stearic acid, the anti-aging agent 4010NA, the anti-aging agent NBC, the anti-aging agent BLE, the accelerator DM, microcrystalline paraffin, carbon black, silicon dioxide TX-80, the reinforcing agent HLT, the light calcium carbonate and dioctyl phthalate into an internal mixer, carrying out densification for 2.5min at the densification temperature of 110 ℃, discharging rubber for 0.5min, and standing for 4 h;
(3) then adding the adhesive RC, the accelerant DZ and sulfur into an internal mixer, mixing for 1min, and discharging and cooling to feed strips for later use;
(4) then extruding the mixture in a 120 cold-feeding extruder, and vulcanizing the mixture in a vulcanizing tank at 148 ℃ for 90min to obtain the outer rubber material.
Comparative example:
comparative examples 1 to 6 the preparation process is as in example 1.
First, performance test
The rubber hose outer rubber material prepared in the examples 1 to 3 and the rubber hose outer rubber material prepared in the comparative examples 1 to 6 were used as experimental subjects to perform a grouping test for testing the relevant performance, the tests were performed according to the current national standard, and the test results are shown in the following table 1.
Evaluation criteria:
TABLE 1
The results in table 1 show that the properties of the outer rubber materials of examples 1 to 3 all reach the standard required values, and all have good mechanical properties and aging resistance, and excellent ozone aging resistance. The test results of the comparative examples 1-6 show that when part of the components are absent in the formula, the mechanical property and the aging resistance of the outer rubber material are obviously affected, which shows that the components of the formula of the outer rubber material have a synergistic effect, and the mechanical property and the aging resistance, especially the ozone aging resistance, of the outer rubber material can be effectively improved.
Secondly, in order to investigate the influence of the ratio of the rubber-plastic alloy to the chlorosulfonated polyethylene on the performance of the outer rubber material, 5 groups of test groups are arranged, and the ratio of the rubber-plastic alloy to the chlorosulfonated polyethylene of each group is shown in table 2.
TABLE 2
| Group of | The weight ratio of the rubber-plastic alloy to the chlorosulfonated polyethylene |
| Test group 1 | 1:1 |
| Test group 2 | 6:5 |
| Test group 3 | 5:4 |
| Test group 4 | 7:3 |
| Test group 5 | 4:1 |
The test groups 1 to 5 are used for preparing the external adhesive material (the sum of the weight parts of the rubber-plastic alloy and the chlorosulfonated polyethylene is 100 parts) according to the formula and the preparation method of the embodiment 1, the performance of the external adhesive material is tested, and the test results are shown in table 3.
TABLE 3
From the results in table 3, it can be seen that when the weight ratio of the rubber-plastic alloy to the chlorosulfonated polyethylene is: when the ratio of the rubber-plastic alloy to the chlorosulfonated polyethylene is 6: 5-7: 3, the mechanical property and the aging resistance of the obtained outer rubber material are better, and when the ratio of the rubber-plastic alloy to the chlorosulfonated polyethylene is 7:3, the mechanical property and the aging resistance of the obtained outer rubber material are optimal.
Third, to investigate the effect of the binders on the properties of the outer-gel material, test groups 7 were set, with the binders of each group being shown in table 4.
TABLE 4
| Group of | Adhesive composition |
| Test group 1 | Adhesive JT-100, adhesive RC 1:2 |
| Test group 2 | Adhesive JT-100, adhesive RC 3:4.5 |
| Test group 3 | Adhesive JT-100, adhesive RC 4:5 |
| Test group 4 | Adhesive JT-100 and adhesive RC 5:5.5 |
| Test group 5 | Adhesive JT-100, adhesive RC 1:1 |
| Test group 6 | Adhesive JT-100 |
| Test group 7 | Adhesive RC |
The ratio in table 4 is the weight ratio, the test groups 1 to 7 prepare the external adhesive material according to the formula and the preparation method of the example 1 (the total amount of the adhesive is 8 parts by weight), the performance of the external adhesive material is tested, and the test results are shown in table 5.
TABLE 5
As can be seen from the results in Table 5, JT-100, which is a binder, works synergistically with RC to improve the performance of the outer coating. When the weight ratio of adhesive JT-100 to adhesive RC: when the adhesive JT-100 and the adhesive RC are 3: 4.5-5: 5.5, the mechanical property and the aging resistance of the obtained outer adhesive material are better, and when the rubber plastic alloy and the chlorosulfonated polyethylene are 4:5, the mechanical property and the aging resistance of the obtained outer adhesive material are optimal.
And fourthly, in order to investigate the influence of the anti-aging agent on the performance of the outer rubber material, 7 groups of test groups are arranged, and the anti-aging agent of each group is shown in Table 6.
TABLE 6
The test groups 1 to 7 were used to prepare the outer rubber material (the total amount of the anti-aging agents was 3.7 parts) according to the formulation and the preparation method of example 1, and the performance of the outer rubber material was tested, and the test results are shown in table 7.
TABLE 7
From the results in table 7, it can be seen that the antioxidant 4010NA, the antioxidant NBC and the antioxidant BLE produce synergistic effect when used together, and can significantly improve the aging resistance and mechanical properties of the material.
And fifthly, in order to investigate the influence of the accelerator on the performance of the outer rubber material, 3 groups of test groups are arranged, and the accelerator of each group is shown in table 8.
TABLE 8
The test groups 1 to 7 were used to prepare the external adhesive material according to the formulation and preparation method of example 1 (the total amount of the accelerator was 1 part), and the performance of the external adhesive material was tested, and the test results are shown in table 9.
TABLE 9
From the results in table 9, it can be seen that the accelerator DM and the accelerator DZ produce synergistic effect when used together, and can improve the ozone resistance, heat resistance and mechanical properties of the outer rubber material. When the weight part ratio of the accelerator DM to the accelerator DZ is (1.5:8) -0.7, the generated synergistic effect is better; when the weight part ratio of the accelerator DM to the accelerator DZ is 3:7, the best synergistic effect is generated.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (3)
1. The ozone aging resistant outer rubber material for the rubber hose is characterized by comprising the following components in parts by weight: 50-70 parts of rubber-plastic alloy, 30-50 parts of chlorosulfonated polyethylene, 1.5-2.5 parts of nano zinc oxide, 6-8 parts of light magnesium oxide, 7.5-10.5 parts of adhesive, 0.5-1.5 parts of stearic acid, 3-5.5 parts of anti-aging agent, 0.65-1.15 parts of accelerator, 1-3 parts of microcrystalline wax, 40-60 parts of carbon black, 10-20 parts of silicon dioxide, 20-30 parts of reinforcing agent, 20-30 parts of light calcium carbonate, 35-45 parts of dioctyl ester and 1.6-2.2 parts of sulfur;
the rubber-plastic alloy is rubber-plastic alloy M58 or rubber-plastic alloy N7030;
the adhesive consists of adhesive JT-100 and adhesive RC, and the weight part ratio of the adhesive JT-100 to the adhesive RC is (3-5): 4.5-5.5);
the anti-aging agent consists of an anti-aging agent 4010NA, an anti-aging agent NBC and an anti-aging agent BLE, wherein the weight part ratio of the anti-aging agent 4010NA, the anti-aging agent NBC and the anti-aging agent BLE is (1-2): (0.5-1): 1.5-2.5);
the accelerator consists of an accelerator DM and an accelerator DZ, wherein the weight part ratio of the accelerator DM to the accelerator DZ is (1.5-3.5) to (5-8);
the carbon black is carbon black N660 or carbon black N330;
the reinforcing agent is HLT, and the silicon dioxide is silicon dioxide TX-80.
2. The ozone aging resistant outer rubber material for the rubber hose as claimed in claim 1, which comprises the following components in parts by weight: 70 parts of rubber-plastic alloy, 30 parts of chlorosulfonated polyethylene, 1.5 parts of nano zinc oxide, 6 parts of light magnesium oxide, JT-1004 parts of adhesive, 5 parts of adhesive RC, 1 part of stearic acid, 1 part of anti-aging agent 4010NA, 1 part of anti-aging agent NBC, 1.7 parts of anti-aging agent, 0.3 part of accelerator DM, 0.7 part of accelerator DZ, 2 parts of microcrystalline paraffin, 60 parts of carbon black, 5 parts of silicon dioxide TX-8015, 30 parts of reinforcing agent HLT, 20 parts of light calcium carbonate, 40 parts of dioctyl ester and 1.8 parts of sulfur.
3. A method for preparing the ozone aging resistant outer rubber material for the rubber hose according to claim 1 or 2, which comprises the following steps:
(1) putting the rubber-plastic alloy and chlorosulfonated polyethylene into an internal mixer, and mixing for 1.5-3 min at the mixing temperature of 110-130 ℃;
(2) then putting the nano zinc oxide, the light magnesium oxide, the adhesive JT-100, stearic acid, the anti-aging agent 4010NA, the anti-aging agent NBC, the anti-aging agent BLE, the accelerator DM, microcrystalline paraffin, carbon black, silicon dioxide TX-80, the reinforcing agent HLT, the light calcium carbonate and dioctyl phthalate into an internal mixer, carrying out internal mixing for 2.5-3.5 min at the internal mixing temperature of 110-130 ℃, discharging rubber, and standing for 4-8 h;
(3) then, putting the adhesive RC, the accelerant DZ and sulfur into an internal mixer, mixing for 1-1.5 min, and discharging the mixture to be cooled and fed for later use;
(4) and extruding the mixture in a cold-feeding extruder, and vulcanizing at 148-151 ℃ to obtain the outer rubber material.
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| CN113121895A (en) * | 2021-04-16 | 2021-07-16 | 和峻（广州）胶管有限公司 | High-wear-resistance rubber hydraulic hose material composition |
| CN116903968A (en) * | 2023-07-20 | 2023-10-20 | 和峻（广州）胶管有限公司 | Wear-resistant weather-resistant rubber hose and preparation method thereof |
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| JP2007271077A (en) * | 2006-03-10 | 2007-10-18 | Tokai Rubber Ind Ltd | Fuel system rubber hose |
| CN101725776A (en) * | 2009-12-11 | 2010-06-09 | 张仲伦 | Lignin reinforcing filled butadiene-acrylonitrile rubber hose |
| JP2010253728A (en) * | 2009-04-22 | 2010-11-11 | Daikin Ind Ltd | Laminate including fluororesin layer and elastomer layer |
| CN104595590A (en) * | 2015-01-29 | 2015-05-06 | 柳州市同进汽车零部件制造有限公司 | Rubber hose for high-pressure spray gun |
| CN105504398A (en) * | 2015-12-31 | 2016-04-20 | 漯河利通液压科技股份有限公司 | Outer rubber resistant to low temperature of minus 55 DEG C for hydraulic rubber hose |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271077A (en) * | 2006-03-10 | 2007-10-18 | Tokai Rubber Ind Ltd | Fuel system rubber hose |
| JP2010253728A (en) * | 2009-04-22 | 2010-11-11 | Daikin Ind Ltd | Laminate including fluororesin layer and elastomer layer |
| CN101725776A (en) * | 2009-12-11 | 2010-06-09 | 张仲伦 | Lignin reinforcing filled butadiene-acrylonitrile rubber hose |
| CN104595590A (en) * | 2015-01-29 | 2015-05-06 | 柳州市同进汽车零部件制造有限公司 | Rubber hose for high-pressure spray gun |
| CN105504398A (en) * | 2015-12-31 | 2016-04-20 | 漯河利通液压科技股份有限公司 | Outer rubber resistant to low temperature of minus 55 DEG C for hydraulic rubber hose |
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