CN115678135B - Rubber composition with vulcanization promoting effect - Google Patents
Rubber composition with vulcanization promoting effect Download PDFInfo
- Publication number
- CN115678135B CN115678135B CN202310006116.5A CN202310006116A CN115678135B CN 115678135 B CN115678135 B CN 115678135B CN 202310006116 A CN202310006116 A CN 202310006116A CN 115678135 B CN115678135 B CN 115678135B
- Authority
- CN
- China
- Prior art keywords
- rubber
- vulcanization
- parts
- rubber composition
- vulcanization accelerator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a rubber composition with a vulcanization accelerating effect, which comprises a rubber component, hydroxylated carbon fibers, a vulcanization accelerator, carbon nano tubes and microcrystalline wax, wherein the vulcanization accelerator is 3-methyl-2-thiazolethione. The vulcanization accelerator contained in the rubber composition can be matched with other components to obviously accelerate the rubber vulcanization efficiency.
Description
Technical Field
The application relates to a rubber composition with a vulcanization accelerating effect, in particular to a composition with a vulcanization accelerating effect.
Background
In the production of rubber products, vulcanization reaction is required, and commonly used vulcanization systems include a sulfur vulcanization system, a peroxide vulcanization system and the like. In the case of rubber materials, the influence of a vulcanization system on the performance of the rubber materials is great, different vulcanization systems can form different cross-linked structures, and different bond energies of different cross-linked structures are one of the inherent reasons for differences of macroscopic physical properties of vulcanized rubber, so that the tensile strength, the hardness and the tear resistance of the rubber materials are different. The rubber crawler belt is a rubber product compounded by rubber and metal or fiber materials and transmits driving force for crawler-type traveling machinery.
The vulcanization molding of the rubber track is the last process for obtaining a final product in the manufacturing process of the rubber track, and when the rubber track is molded, a layer of adhesive is generally coated on the surface of the metal core rod, so that the adhesive and the rubber material are crosslinked to generate a three-dimensional grid structure through the vulcanization process, and finally, the metal core rod and the rubber material are tightly bonded. In the vulcanization reaction, it is considered to add a vulcanization accelerator in order to accelerate the reaction between the rubber and the vulcanizing agent and to improve the productivity. However, the rubber vulcanization accelerator commonly used in the industry at present has the defects of further improvement of the accelerating efficiency, single function, environmental pollution and the like. With the continuous improvement of the production and use requirements of modern industry and national defense on rubber products, the preparation of novel rubber vulcanization accelerators with high efficiency, multiple functions, environmental protection and low cost becomes the current trend of rubber industry, especially the research and development of rubber tracks.
Therefore, there is a need for an improved rubber composition and an efficient vulcanization-promoting rubber composition which can effectively promote the vulcanization of rubber and improve the physical and mechanical properties of vulcanized rubber, and is particularly suitable for use in the production of rubber for endless rubber tracks.
Disclosure of Invention
In order to solve the problems and overcome the defects of the existing rubber vulcanization accelerator that the promotion efficiency needs to be improved, the function is single, the environment is polluted and the like, the invention provides the rubber composition with the efficient vulcanization promotion function, the rubber composition can effectively promote the vulcanization of rubber, shorten the vulcanization time, reduce the vulcanization temperature, reduce the consumption of vulcanizing agents, improve the physical and mechanical properties of vulcanized rubber, ensure that the rubber has better wear resistance and tear resistance, and prolong the service life of a vehicle.
The invention provides a rubber composition, which is characterized by comprising a rubber component, hydroxylated carbon fibers, a vulcanization accelerator, carbon nanotubes and microcrystalline wax, wherein the vulcanization accelerator is 3-methyl-2-thiazolethione.
Further, the vulcanization accelerator is 3-methyl-2-thiazolethione, and the content thereof is 5-8 parts by weight.
Further, the rubber component is chloroprene rubber.
Further, the weight parts of the components are as follows: 100-120 parts of rubber component, 25-35 parts of hydroxylated carbon fiber, 5-8 parts of vulcanization accelerator, 10-15 parts of carbon nano tube and 2-4 parts of microcrystalline wax.
The invention also provides the application of the rubber composition in preparing the rubber track.
The invention also provides a preparation method of the rubber composition, which comprises the following steps:
step one, preparing raw materials. Preparing raw materials, and weighing the raw materials in proportion for later use;
and step two, plasticating. Setting the speed ratio of front and rear rollers of the open mill to be 1:1.5, adjusting the roller spacing of the open mill to 0.9mm, and adding chloroprene rubber for plastication;
and step three, mixing. Adding other components, and uniformly mixing to obtain the rubber compound.
And step four, vulcanizing. Bao Tongchu sample is placed at room temperature for 24 hours, and then is subjected to normal vulcanization at 150 ℃ to obtain a finished product.
The invention has the beneficial effects that: compared with the existing vulcanization accelerator, the invention has the following advantages:
(1) The vulcanization accelerator used in the invention can be applied to natural rubber and various synthetic rubbers, especially chloroprene rubber, has obvious vulcanization accelerator effect, can obviously shorten the positive vulcanization time of rubber compound, reduce the vulcanization activation energy, improve the apparent crosslinking density of vulcanized rubber, also can obviously improve the mechanical property of the vulcanized rubber, and shows obvious reinforcement effect.
(2) The hydroxylated carbon fibers, the carbon nanotubes and the vulcanization accelerator are used in the rubber composition in a matching manner, the hydroxylated carbon fibers can form a three-dimensional network porous structure, the diffusion of the vulcanization accelerator is facilitated, the high dispersibility and the high temperature resistance of the vulcanization accelerator are further enhanced, the uniformity of rubber vulcanization treatment is better, and the rubber quality is ensured. Can effectively improve the acid and alkali resistance of the rubber vulcanization accelerator and can be used under the conditions of high temperature, acid and alkali.
(3) Compared with the commonly used accelerators such as ETU (ethylene-vinyl ether) and the like in the prior art, the vulcanization accelerator used in the rubber composition is more environment-friendly, can reduce the dust flying and volatilization of the accelerator in the rubber mixing, vulcanization and other processing processes, is beneficial to the environmental protection of workshops, can reduce the fire hazard and explosion hazard of dust of the small molecular accelerator, and can also greatly reduce the migration and volatilization of the accelerator residues in vulcanized rubber.
Detailed Description
The present invention is described in further detail below, and while the following text sets forth exemplary embodiments of the application, it should be understood that the application can be embodied in various forms and should not be limited to the specific embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The invention provides a rubber composition, which comprises 100-120 parts by mass of chloroprene rubber, 25-35 parts by mass of hydroxylated carbon fibers, 5-8 parts by mass of 3-methyl-2-thiazole thioketone, 10-15 parts by weight of carbon nanotubes and 2-4 parts by weight of microcrystalline wax.
The rubber composition was prepared as follows:
step one, raw material preparation. Preparing raw materials, and weighing the raw materials in proportion for later use;
and step two, plasticating. Setting the speed ratio of front and rear rollers of the open mill to be 1:1.5, adjusting the roller spacing of the open mill to 0.9mm, and adding chloroprene rubber for plastication;
and step three, mixing. Adding other components, and uniformly mixing to obtain the rubber compound.
And step four, vulcanizing. Bao Tongchu sample is placed at room temperature for 24 hours, and then is subjected to normal vulcanization at 150 ℃ to obtain a finished product.
Some of the examples and comparative examples are selected below for testing and are illustrated below:
example 1
The rubber composition provided in this example comprises 100 parts by weight of chloroprene rubber, 25 parts by weight of hydroxylated carbon fibers, 5 parts by weight of 3-methyl-2-thiazolethione, 10 parts by weight of carbon nanotubes, and 2 parts by weight of microcrystalline wax.
The preparation was carried out as described above.
Example 2
The rubber composition provided in this example comprises 110 parts by weight of chloroprene rubber, 30 parts by weight of hydroxylated carbon fibers, 6 parts by weight of 3-methyl-2-thiazolethione, 12 parts by weight of carbon nanotubes, and 3 parts by weight of microcrystalline wax.
The rubber was prepared in the same manner as in example 1.
Example 3
The rubber composition provided in this example comprises 120 parts by weight of chloroprene rubber, 35 parts by weight of hydroxylated carbon fibers, 8 parts by weight of 3-methyl-2-thiazolethione, 15 parts by weight of carbon nanotubes, and 4 parts by weight of microcrystalline wax.
The rubber was prepared in the same manner as in examples 1 and 2.
Comparative example 1
The rubber composition provided in this comparative example was formed in comparative example 1 by removing the component vulcanization accelerator 3-methyl-2-thiazolethione based on example 2.
Comparative example 2
This comparative example provides a rubber composition, which was prepared by adjusting the composition of the vulcanization accelerator and replacing 3-methyl-2-thiazolethione with the accelerator ETU vinylthiourea in example 2, to give comparative example 2.
Comparative example 3
The rubber composition provided in this comparative example was formed in comparative example 3 by removing the component hydroxylated carbon fiber on the basis of example 2.
The above comparative example was prepared in the same manner as in examples 1 to 3.
The rubber produced in the examples and comparative examples was tested for performance parameters and vulcanization performance parameters, and the results are shown in table 1 below.
TABLE 1
As is apparent from the data in Table 1, the examples 1 to 3 can significantly improve the vulcanization rate, shorten the positive vulcanization time, reduce the activation energy of the vulcanization reaction, prolong the scorch time, and maintain the tensile strength and the tear strength of the rubber composition, compared with the comparative examples 1 to 3, which shows that the rubber composition of the present invention has a significant acceleration effect on the vulcanization efficiency, and simultaneously maintains the good comprehensive properties, and has good tensile and tear resistance.
When the vulcanization accelerator 3-methyl-2-thiazolethione or the hydroxylated carbon fiber is not added in the composition, as shown in comparative examples 1 and 3, the vulcanization rate is obviously reduced, the vulcanization time is prolonged to a certain extent, and the activation energy of the vulcanization reaction is higher; when the composition was adjusted for the components of the vulcanization accelerator and the vulcanization accelerator agent was changed to the accelerator ETU, as shown in comparative example 2, the vulcanization rate was also significantly reduced, the vulcanization time was also prolonged to a certain extent, and the vulcanization reaction activation energy was also high. And the mechanical properties of the rubber, such as tensile strength, tearing strength and the like, are also reduced to a certain extent. Therefore, compared with the commonly used accelerator ETU in the prior art, the vulcanization accelerator used in the invention has improved vulcanization accelerating efficiency. The data also verify that the hydroxylated carbon fibers can play a synergistic effect when being matched with the vulcanization accelerator, and the use of the hydroxylated carbon fibers is also beneficial to the vulcanization accelerator to play a vulcanization accelerating role.
It should be appreciated that reference throughout this specification to "an embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "in an embodiment of the present application" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiments. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply any order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (2)
1. The rubber composition for the crawler belt is characterized by comprising a rubber component, hydroxylated carbon fibers, a vulcanization accelerator, carbon nanotubes and microcrystalline wax, wherein the vulcanization accelerator is 3-methyl-2-thiazolethione, and the content of the vulcanization accelerator is 5-8 parts by weight; the rubber component is chloroprene rubber; 100-120 parts of rubber component, 25-35 parts of hydroxylated carbon fiber, 5-8 parts of vulcanization accelerator, 10-15 parts of carbon nano tube and 2-4 parts of microcrystalline wax.
2. Use of the rubber composition for a crawler according to claim 1 for producing a rubber crawler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310006116.5A CN115678135B (en) | 2023-01-04 | 2023-01-04 | Rubber composition with vulcanization promoting effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310006116.5A CN115678135B (en) | 2023-01-04 | 2023-01-04 | Rubber composition with vulcanization promoting effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115678135A CN115678135A (en) | 2023-02-03 |
| CN115678135B true CN115678135B (en) | 2023-04-07 |
Family
ID=85057457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310006116.5A Active CN115678135B (en) | 2023-01-04 | 2023-01-04 | Rubber composition with vulcanization promoting effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115678135B (en) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5946675B2 (en) * | 2012-03-29 | 2016-07-06 | 東洋ゴム工業株式会社 | Rubber composition for tire and method for producing the same |
| CN104479186A (en) * | 2015-01-07 | 2015-04-01 | 南京七四二五橡塑有限责任公司 | Dynamic-ozone-resistant chloroprene rubber composition and preparation method thereof |
| CN104861319A (en) * | 2015-05-20 | 2015-08-26 | 范文杰 | Vulcanization accelerator composition as well as preparation method and application thereof |
| CN105086032A (en) * | 2015-09-09 | 2015-11-25 | 宁波硫华聚合物有限公司 | Pre-disperse master batch for chloroprene rubber vulcanization crosslinking and preparation method thereof |
| CN107286398A (en) * | 2017-08-01 | 2017-10-24 | 合肥安力电力工程有限公司 | A kind of flame-retardant conductive rubber and preparation method thereof |
| CN107459682A (en) * | 2017-09-25 | 2017-12-12 | 芜湖凯奥尔环保科技有限公司 | A kind of preparation method of fibre reinforced rubber composite |
| CN108676216A (en) * | 2018-05-07 | 2018-10-19 | 广东贝洛新材料科技有限公司 | A kind of aerospace connectors chlorobutadiene sizing material and preparation method thereof of resistance to 150 DEG C of high temperature |
| CN108864773B (en) * | 2018-06-13 | 2020-07-24 | 四川理工学院 | Modified spiral carbon nanofiber, preparation method and application thereof, and rubber composite material |
| CN108735346B (en) * | 2018-06-21 | 2020-05-26 | 珠海安润普科技有限公司 | Fatigue-resistant conductive composite material and preparation method thereof |
| CN109608714A (en) * | 2018-12-05 | 2019-04-12 | 浙江兄弟之星汽配有限公司 | A kind of automobile wiper wiper blade and its preparation process |
| CN111004417A (en) * | 2019-12-24 | 2020-04-14 | 江苏云睿汽车电器系统有限公司 | High-performance windshield wiper rubber strip containing carbon nano tubes and preparation method thereof |
| CN111484649A (en) * | 2020-03-30 | 2020-08-04 | 青岛黑猫新材料研究院有限公司 | Preparation method of modified thermal cracking carbon black |
| CN115141489A (en) * | 2022-06-08 | 2022-10-04 | 浙江金凤凰电力科技有限公司 | Hot silicone rubber for insulating protective sleeve |
| CN115011002B (en) * | 2022-06-13 | 2024-03-08 | 欣捷环保装备(南通)有限公司 | Vulcanization process for large-size rubber crawler belt |
| CN115386148A (en) * | 2022-08-11 | 2022-11-25 | 上海科邦医用乳胶器材有限公司 | Natural medical rubber gloves and preparation method thereof |
-
2023
- 2023-01-04 CN CN202310006116.5A patent/CN115678135B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115678135A (en) | 2023-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103717366A (en) | Elastomeric compositions comprising reclaimed vulcanized elastomer particles of broad size distribution and chemically modified vulcanized elastomer particles | |
| CN108774363A (en) | A kind of EPDM rubber formula and preparation method containing rubber powder | |
| CN101602867B (en) | Modified chloroprene rubber V band and method for preparing same | |
| CN102391552A (en) | Rubber material containing phenolic tackifying resin | |
| CN101613496A (en) | A kind of modified glue powder and blend rubber cross-linked rubber and preparation method thereof | |
| CN115678135B (en) | Rubber composition with vulcanization promoting effect | |
| CN108559184B (en) | Environment-friendly ethylene propylene diene monomer particles and preparation method thereof | |
| CN104804685A (en) | Steel plate reinforced film and preparation method thereof | |
| CN107033467A (en) | Elastomeric compound and streetcar track microcellular rubber resilient sleeper-bearing and preparation method thereof | |
| CN102093608B (en) | Reclaimed rubber/coal ash composite material and preparation method thereof | |
| CN110294911B (en) | Low-compression permanent-deformation active chlorine type acrylate rubber and preparation method thereof | |
| CN110746705A (en) | Flame-retardant ozone-resistant lower cover rubber, preparation method and tubular conveying belt | |
| CN108239313B (en) | Diatomite reinforced and filled all-terrain tire tread rubber and preparation method thereof | |
| CN103408882A (en) | Thermoplastic vulcanized rubber and preparation method thereof | |
| WO2023138055A1 (en) | Light anti-cracking rubber sole and preparation method therefor | |
| CN106700209B (en) | Composite foam material containing carbon nanofibers and preparation thereof | |
| CN107189233A (en) | Environment-protective sealing sponge used for automobile air conditioning and preparation method thereof | |
| CN104844851B (en) | Make the sizing material and manufacturing method of soft mould of hard alloy blank soft mode | |
| CN107286414A (en) | A kind of processing method on radiation-proof rubber floor | |
| CN107090130A (en) | A kind of EP rubbers composite and preparation method thereof | |
| CN110564029A (en) | Preparation method of high-performance low-cost rubber powder-based composite elastomer | |
| CN115558173B (en) | Application of industrial lignin as cutting-resistant functional auxiliary agent in preparation of cutting-resistant tire material | |
| CN115010999B (en) | Wear-resistant sole rubber formula and manufacturing process | |
| CN113337002B (en) | Environment-friendly waste rubber regenerant and preparation method thereof | |
| CN117601541A (en) | Colorful multilayer electroplating TPU film and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |