Chemical Formula | C13H16N2S2 |
Molecular Weight | 264.41 g/mol |
Appearance | White to off - white powder |
Odor | Characteristic odor |
Melting Point | 96 - 104 °C |
Solubility In Organic Solvents | Soluble in common organic solvents like benzene, toluene |
Insolubility In Water | Insoluble in water |
Density | Approx. 1.26 g/cm³ |
Flash Point | 199 °C |
Stability | Stable under normal conditions |
What are the main uses of N-cyclohexylbenzothiazole-2-sulfenamide?
N-cyclohexylbenzothiazole-2-sulfinamide, often referred to as accelerator CZ, has outstanding functions in the rubber industry.
This substance is a commonly used vulcanization accelerator, and its effectiveness is significant in the vulcanization process of rubber. It can greatly accelerate the vulcanization rate, reduce the time required for vulcanization, and improve the efficiency of production. And it can optimize the comprehensive properties of vulcanized rubber, such as enhancing its tensile strength, making rubber products more ductile and not easy to break; improving wear resistance, so that the service life of products can be extended in frequent friction environments; improving aging resistance, so that rubber products can slow down the performance decline under the action of light, heat, oxygen and other factors, and maintain good condition for a long time.
In the manufacture of radial tires, its application is particularly critical. Radial tires have strict requirements on rubber properties. N-cyclohexylbenzothiazole-2-sulfinamide can ensure that the tire tread rubber, sidewall rubber and other parts of the rubber have good processing properties and physical and mechanical properties, ensuring the quality and safety of the tire, so that the tire can be stable and reliable under high-speed driving and complex road conditions.
In addition, in the production of other rubber products, such as hoses, tapes, seals, etc., N-cyclohexylbenzothiazole-2-sulfinamide also plays an important role in helping to improve the quality and performance of various rubber products to meet the needs of different fields and scenarios.
What are the chemical properties of N-cyclohexylbenzothiazole-2-sulfenamide?
N-cyclohexylbenzothiazole-2-sulfenamide, an organic compound, is widely used in the rubber industry and is a commonly used vulcanization accelerator. Its chemical properties are unique and are described in detail as follows:
This compound has high stability. Under normal temperature and pressure, its properties are relatively stable, and it can be stored for a long time without easy deterioration. In case of hot topics, it may decompose and produce harmful gases, which requires special attention when storing and using.
In terms of solubility, it is soluble in common organic solvents such as benzene, toluene, acetone, etc. However, the solubility in water is very small, which makes it necessary to consider its dispersion in systems involving aqueous phases.
Its molecular structure contains benzothiazole ring and cyclohexyl group, giving the substance unique reactivity. During the vulcanization process of rubber, it can effectively reduce the vulcanization temperature, shorten the vulcanization time, and significantly improve the vulcanization efficiency. And it can form a relatively stable chemical bond with the rubber matrix, enhancing the physical and mechanical properties of rubber products, such as tensile strength and wear resistance.
Because of its sulfur-containing atoms, it can participate in some redox reactions under specific conditions. However, such reactions usually require specific catalysts or more harsh reaction conditions to occur.
The chemical properties of N-cyclohexylbenzothiazole-2-sulfenamide make it play an important role in the rubber industry. However, when using it, it must be properly handled according to its characteristics to achieve the best use effect and ensure production safety.
What is N-cyclohexylbenzothiazole-2-sulfenamide production method?
N-cyclohexylbenzothiazole-2-sulfineamide is a vulcanization accelerator commonly used in the rubber industry. The preparation method used to follow the following steps in the past:
First, use 2-mercaptobenzothiazole and cyclohexylamine as raw materials. Put 2-mercaptobenzothiazole in the reactor, slowly add cyclohexylamine, and in this process, make sure that the two are fully mixed. The reaction of these two requires specific temperature and pressure conditions. Generally speaking, the temperature is controlled within a moderate range and cannot be too high or too low. If the temperature is too high, or side reactions occur, affecting the purity of the product; if the temperature is too low, the reaction rate is slow and takes a long time.
times, during the reaction, a specific catalyst is often required. The choice of catalyst is related to the efficiency of the reaction and the quality of the product. Appropriate catalysts can accelerate the reaction process, make the reaction more complete, and improve the yield of the product. The amount of catalyst also needs to be precisely controlled, too much or too little is not conducive to the progress of the reaction.
Furthermore, after the reaction is completed, it needs to go through the process of separation and purification. Separation methods, or filtration, distillation, etc. are used to remove impurities such as unreacted raw materials, by-products and catalysts. In the purification process, recrystallization, extraction and other means are often used to improve the purity of the product and reach the standard of industrial application.
With the evolution of science and technology, the method of preparing this compound has also been continuously improved. However, the traditional method has played a pivotal role in the development of the rubber industry in the past.
N-cyclohexylbenzothiazole-2-sulfenamide what are the precautions during use
In the case of N-cyclohexylbenzothiazole-2-sulfinamide, many matters must be observed when using it.
This drug is a rubber vulcanization accelerator with high efficacy. When using it, the first thing to pay attention to is the accurate dosage. If the dosage is too small, the vulcanization process will be slow, and the physical properties of the rubber will not meet expectations; if the dosage is too large, the vulcanization speed will be too fast, which will easily cause scorch and damage the quality of the rubber products.
Furthermore, temperature has a great impact on it. If the temperature increases, its effect on promoting vulcanization will increase, but if the temperature is too high, the risk of scorch will also increase sharply. Therefore, when operating, it is necessary to strictly control the temperature, and find a suitable temperature range according to the rubber products and process requirements to ensure a smooth and orderly vulcanization process.
The additives that cooperate with it also need to be carefully considered. Different additives are matched with it, or synergistic or contradictory to each other. For example, some active agents can enhance its activity, while some antioxidants may affect its vulcanization efficiency. It must be tested to find the best combination of additives.
In addition, storage conditions should not be underestimated. It should be placed in a cool, dry and ventilated place, protected from light and shade. If improperly stored, damp or heated, its performance is variable, which affects the use effect.
During use, attention should also be paid to safety protection. This substance may be irritating to the human body, and protective equipment such as gloves and masks are required during operation to avoid contact with the skin and respiratory tract and ensure personal safety.
How is N-cyclohexylbenzothiazole-2-sulfenamide compatible with other substances?
N-cyclohexylbenzothiazole-2-hyposulfonamide is a commonly used accelerator in the rubber industry. Its compatibility with other substances is related to the performance of rubber products and cannot be ignored.
is compatible with sulfur as a vulcanizing agent, and the compatibility between the two is quite good. Sulfur is a key raw material in the vulcanization process of rubber. N-cyclohexylbenzothiazole-2-hyposulfonamide can promote the crosslinking of sulfur and rubber molecules, accelerate the vulcanization rate, make the crosslinking structure uniform, and improve the physical and mechanical properties of rubber products, such as tensile strength and wear resistance.
In the rubber matrix, the compatibility of this accelerator is also excellent. It can be uniformly dispersed in the rubber without agglomeration, ensuring the homogeneity of the properties of all parts of the rubber. Due to its chemical structure containing benzothiazole and cyclohexyl groups, it interacts with rubber molecules, which can enhance the affinity of the two.
However, it encounters some acidic substances, and its compatibility or change. Acidic substances or react with the active group of the accelerator, causing the inactivation of the accelerator and affecting the vulcanization effect. Acidic active agents such as stearic acid, if the dosage is improper, or interact with N-cyclohexyl benzothiazole-2-sulfonamide, reducing its promotion efficiency.
Furthermore, the compatibility with some fillers also needs attention. Carbon black is a commonly used rubber filler, and N-cyclohexylbenzothiazole-2-sulfenamide has a certain compatibility with it, which can be adsorbed on the surface of carbon black, does not affect the reinforcement effect of carbon black on rubber, and may synergistically improve rubber properties. However, some inorganic fillers, if the surface is untreated, or the interaction with the accelerator is weak, affect their dispersion and overall performance.