CN109705414B - High-tear rubber cup material for breaking hammer and preparation method thereof - Google Patents
High-tear rubber cup material for breaking hammer and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a high-tear rubber cup material for a breaking hammer and a preparation method thereof. The rubber leather cup material comprises the following components in parts by weight: 50-200 parts of hydrogenated nitrile rubber, 2-15 parts of an active agent, 50-200 parts of a reinforcing filler, 2-30 parts of a plasticizer, 2-20 parts of a tear-resistant agent, 1-5 parts of an anti-fatigue agent and 1-5 parts of a vulcanizing agent. According to the rubber cup material, the types and the dosage of the active agent, the reinforcing filler, the plasticizer, the anti-tearing agent, the anti-fatigue agent and the vulcanizing agent are optimized, so that the anti-tearing and anti-fatigue performances of the rubber cup material are improved, the tearing strength can reach 85KN/m, the extension fatigue can reach 280 ten thousand times, and compared with the existing rubber cup material, the performance is improved by 30% -40%.
Description
Technical Field
The invention relates to the technical field of rubber, in particular to a high-tear rubber cup material for a breaking hammer and a preparation method thereof.
Background
The breaking hammer is used as an important part of an excavator and plays an important role in mining, metallurgy, railway, highway breaking and maintenance and old building demolition. The most important characteristics of a breaking hammer are its striking force and impact energy, so medium and large-sized breaking hammers generally comprise a "hydraulic + nitrogen" impact system to increase their striking force. The nitrogen impact system is mainly completed by compressing nitrogen by a rubber cup, and the rubber cup is repeatedly compressed and bent under the pressure due to high impact frequency and high pressure of the breaking hammer, so that the rubber is easily heated and fatigued, and the rubber is easily fatigued and aged due to repeated action at high temperature. Once the cup is broken, the breaking hammer needs to be removed. Therefore, the rubber cup is very troublesome to replace and has high maintenance cost. At present, the rubber cup material in the industry generally takes nitrile rubber as the main material, and hydrogenated nitrile rubber is partially adopted. The nitrile rubber has general performances of temperature resistance, tensile strength, tearing and the like, and the damage frequency is very high; the service life of the hydrogenated nitrile rubber is obviously longer than that of the hydrogenated nitrile rubber, but the manufacturing cost is far higher than that of the hydrogenated nitrile rubber, and the performance of the hydrogenated nitrile rubber is not expected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-tearing rubber cup material for a breaking hammer, and the rubber cup material has excellent tear resistance and fatigue resistance.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
according to the invention, hydrogenated nitrile rubber is used as a main material, and a tearing resistance agent and an anti-fatigue agent are added to optimize a vulcanization system and the using amount of components, so that the tearing resistance and the fatigue resistance of the rubber cup material are greatly improved, and the service life of the rubber cup material is prolonged.
As a preferred embodiment of the high tear rubber cup material for a demolition hammer according to the present invention, the active agent is at least one of zinc oxide, magnesium oxide, stearic acid, polyethylene glycol, and stearate. The invention selects the activator preferably, which is beneficial to improving the activity of the accelerator, reducing the dosage of the accelerator and shortening the vulcanization time.
As a preferred embodiment of the high tear rubber cup material for a demolition hammer according to the present invention, the reinforcing filler is a mineral filler.
As a preferable embodiment of the high-tear rubber cup material for the quartering hammer, the reinforcing filler comprises at least one of carbon black, white carbon black, diatomite and calcium silicate pottery clay, which is beneficial to improving the strength of rubber, improving the processability of rubber materials and improving the tear resistance of products.
As a preferred embodiment of the high tear rubber cup material for a demolition hammer according to the present invention, the plasticizer is an ester plasticizer.
As a preferred embodiment of the high tear rubber cup material for a demolition hammer according to the present invention, the plasticizer is at least one of dioctyl phthalate, dioctyl terephthalate, trioctyl trimellitate, dioctyl sebacate, dioctyl adipate, and di (butoxyethoxyethyl) oxalate.
As a preferred embodiment of the high tear rubber cup material for a demolition hammer according to the present invention, the tear resistant agent includes at least one of multi-walled carbon nanotubes, and petroleum resin polymers composed of amorphous structures and crystalline bodies.
According to the invention, the petroleum resin polymer preferably made of multi-wall carbon nanotubes, amorphous structures and crystals can improve the tear resistance of the material, and the tear strength can reach 85 KN/m. The multi-walled carbon nanotube and the petroleum resin polymer have more crosslinking points in the crosslinking process with the hydrogenated nitrile-butadiene rubber, form a network structure in the rubber, can effectively resist the sliding deformation of the rubber, and improve the tear strength of the rubber material. However, when the added amount of the multi-walled carbon nanotube and the petroleum resin polymer is large, the dispersibility is poor, so that the aggregation or defect of the multi-walled carbon nanotube and the petroleum resin polymer in the rubber matrix is easily caused, and the crosslinking degree and the interface bonding performance of the rubber matrix are influenced, so that the dosage of the anti-tearing agent also needs to be controlled within a proper range.
As a preferred embodiment of the high-tear rubber cup material for a quartering hammer according to the present invention, the anti-fatigue agent is a complex composed of methyl citraconimide, activated phenol resin and metaformaldehyde system, and the preparation method of the anti-fatigue agent is as follows:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The invention can improve the fatigue resistance of the material by preferably selecting a complex compound consisting of methyl citraconimide, activated phenolic resin and a metaformaldehyde system as an anti-fatigue agent, and the preferred anti-fatigue agent is combined with a sulfur system vulcanizing agent to form longer carbon-sulfur bonds and polysulfide bonds in the vulcanizing process, when the rubber is damaged by repeated stretching fatigue, the reversible process of fracture recombination of the sulfur-sulfur bonds in a cross-linked network is favorable for synergistically improving the stretching fatigue performance, and the stretching fatigue of the rubber cup material can reach more than 280 ten thousand times.
As a preferable embodiment of the high-tear rubber cup material for the breaking hammer, the vulcanizing agent is a sulfur system vulcanizing agent. The invention adopts the traditional sulfur vulcanization system, and after vulcanization, the rubber cross-linking bond is mainly a polysulfide bond, and the anti-tear performance and the dynamic fatigue performance are good.
As a preferred embodiment of the high tear rubber cup material for a demolition hammer according to the present invention, the rubber cup material further includes a silane coupling agent and an accelerator.
As a preferable embodiment of the high tearing rubber cup material for the breaking hammer, the accelerator is at least one of tetramethylthiuram disulfide and N-cyclohexyl-2-benzothiazole sulfonamide.
As a preferable embodiment of the high tear rubber cup material for a demolition hammer according to the present invention, the rubber cup material further includes a silane coupling agent and an accelerator; preferably, the accelerator is at least one of tetramethylthiuram disulfide, N-cyclohexyl-2-benzothiazolesulfenamide.
The preferred embodiment of the high-tearing rubber cup material for the breaking hammer comprises the following components in parts by weight:
the invention also provides a preparation method of the high-tear rubber cup material for the breaking hammer, which comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler and a plasticizer, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
The invention firstly pre-disperses the carbon nano tube and then adds the carbon nano tube into the formula, thus effectively solving the problem that the carbon nano tube is difficult to disperse. The mixing process can improve the dispersibility of each component in rubber, thereby improving the overall fatigue resistance and tear resistance.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, by optimizing the types and the use amounts of the components, the tear resistance and the fatigue resistance of the prepared rubber cup material are greatly improved, the tear strength can reach 85KN/m, the extension fatigue can reach 280 ten thousand times, and compared with the existing rubber cup material, the performance is improved by 30-40%.
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 will be understood by those skilled in the art that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the examples, the experimental methods used were all conventional methods unless otherwise specified, and the materials, reagents and the like used were commercially available without otherwise specified.
Example 1
A high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
wherein the tear-resistant resin is a petroleum resin polymer consisting of an amorphous structure and crystals;
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The preparation method of the high-tear rubber cup material for the breaking hammer comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler, a plasticizer and an accelerator, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
Example 2
A high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
wherein the tear-resistant resin is a petroleum resin polymer consisting of an amorphous structure and crystals;
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The preparation method of the high-tear rubber cup material for the breaking hammer comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler, a plasticizer and an accelerator, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
Example 3
A high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
wherein the tear-resistant resin is a petroleum resin polymer consisting of an amorphous structure and crystals;
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The preparation method of the high-tear rubber cup material for the breaking hammer comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler, a plasticizer and an accelerator, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
Example 4
A high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
wherein the tear-resistant resin is a petroleum resin polymer consisting of an amorphous structure and crystals;
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The preparation method of the high-tear rubber cup material for the breaking hammer comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler, a plasticizer and an accelerator, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
Example 5
A high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
wherein the tear-resistant resin is a petroleum resin polymer consisting of an amorphous structure and crystals;
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The preparation method of the high-tear rubber cup material for the breaking hammer comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler, a plasticizer and an accelerator, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
Example 6
A high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
wherein the tear-resistant resin is a petroleum resin polymer consisting of an amorphous structure and crystals;
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The preparation method of the high-tear rubber cup material for the breaking hammer comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler, a plasticizer and an accelerator, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
Example 7
A high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The preparation method of the high-tear rubber cup material for the breaking hammer comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler, a plasticizer and an accelerator, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
Comparative example 1
A high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
wherein the tear-resistant resin is a petroleum resin polymer consisting of an amorphous structure and crystals;
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The preparation method of the high-tear rubber cup material for the breaking hammer comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler, a plasticizer and an accelerator, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
Comparative example 2
A high-tearing rubber cup material for a breaking hammer comprises the following components in parts by weight:
wherein the tear-resistant resin is a petroleum resin polymer consisting of an amorphous structure and crystals;
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
The preparation method of the high-tear rubber cup material for the breaking hammer comprises the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler, a plasticizer and an accelerator, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
The rubber materials prepared above were subjected to the following property tests, and the results are shown in table 1.
TABLE 1
The rubber cup material prepared by the invention can be used for obtaining the required rubber cup product after compression molding, vulcanization, trimming and secondary vulcanization.
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 (11)
1. The high-tear rubber cup material for the breaking hammer is characterized by comprising the following components in parts by weight:
the tear resistance agent comprises at least one of multi-wall carbon nano tubes and petroleum resin polymers composed of amorphous structures and crystals;
the anti-fatigue agent is a complex compound consisting of methyl citraconimide, activated phenolic resin and a methyl-formaldehyde system, and the preparation method of the anti-fatigue agent comprises the following steps:
mixing fatty acid zinc, aromatic zinc carboxylate, reinforcing hardening resin and tackifying resin, melting at the temperature of 130-150 ℃, adding 1, 3-bis (citraconimidomethyl) benzene, hexamethylene-1, 6-sodium disulfosulfate dihydrate and a metamethylene system, stirring, melting, uniformly mixing, and cooling to obtain the anti-fatigue agent.
2. The high tear rubber cup material for a demolition hammer as set forth in claim 1, wherein the active agent is at least one of zinc oxide, magnesium oxide, stearic acid, polyethylene glycol, and stearate.
3. The high tear rubber cup material for a demolition hammer as claimed in claim 1, wherein the reinforcing filler is a mineral filler.
4. The high tear rubber cup material for a demolition hammer as set forth in claim 3, wherein the reinforcing filler comprises at least one of carbon black, white carbon, diatomaceous earth, calcium silicate clay.
5. The high tear rubber cup material for a demolition hammer as claimed in claim 1, wherein the plasticizer is an ester plasticizer.
6. The high tear rubber cup material for a demolition hammer as claimed in claim 5, wherein the plasticizer is at least one of dioctyl phthalate, dioctyl terephthalate, trioctyl trimellitate, dioctyl sebacate, dioctyl adipate, and di (butoxyethoxyethyl) oxalate.
7. The high tear rubber cup material for a demolition hammer according to claim 1, wherein the vulcanizing agent is a sulfur system vulcanizing agent.
8. The high tear rubber cup material for a demolition hammer as set forth in claim 1, further comprising a silane coupling agent and an accelerator.
9. The high tear rubber cup material for a demolition hammer as set forth in claim 8, wherein the accelerator is at least one of tetramethylthiuram disulfide, N-cyclohexyl-2-benzothiazolesulfenamide.
10. The high-tear rubber cup material for the demolition hammer according to claim 1, comprising the following components in parts by weight:
11. the method for preparing the high-tear rubber cup material for the quartering hammer according to any one of claims 1 to 10, comprising the following steps:
(1) weighing equal parts by weight of hydrogenated nitrile rubber and a tear resistance agent, banburying in an internal mixer to 130 ℃, discharging rubber, cooling and standing to obtain a mixture of the hydrogenated nitrile rubber and the tear resistance agent;
(2) plasticating the rest hydrogenated nitrile-butadiene rubber for 2min, then sequentially adding an active agent, 1/2 metered parts of reinforcing filler, the hydrogenated nitrile-butadiene rubber and anti-tearing agent mixture obtained in the step (1) and an anti-fatigue agent, banburying for 2min, then adding the rest reinforcing filler and a plasticizer, banburying to 150 ℃, and discharging;
(3) returning to the open mill for 2-3 times, discharging and standing for 12 hours;
(4) adding a vulcanizing agent into an open mill, thinly passing for 5-6 times, and discharging according to the required thickness.
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| CN112280134A (en) * | 2020-09-29 | 2021-01-29 | 苏州斯尔泰光伏材料科技有限公司 | Tear-resistant rubber plate for photovoltaic laminator and preparation method thereof |
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| CN108948462A (en) * | 2018-07-31 | 2018-12-07 | 合肥铭佑高温技术有限公司 | A kind of high abrasion cable sheath material and preparation method thereof |
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| CN102863660A (en) * | 2012-10-08 | 2013-01-09 | 上海众力投资发展有限公司 | Low-rigidity and high acting force fatigue resistant rubber compound and processing technology thereof |
| CN104163958A (en) * | 2014-07-31 | 2014-11-26 | 濮阳市恒信橡塑有限公司 | Rubber piston cup for mud pumps and preparation method thereof |
| CN206397972U (en) * | 2017-01-13 | 2017-08-11 | 浙江柏瑞汽配有限公司 | A kind of release bearing of resistance to mineral oil |
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