N-cyclohexyl-2-benzothiazole Sulfenamide

N-cyclohexyl-2-benzothiazole sulfenamide has a wide range of main uses. In the rubber industry, this is an extremely important vulcanization accelerator.
In the vulcanization process, it exhibits excellent efficacy. It can effectively increase the rate of rubber vulcanization, making the vulcanization reaction more rapid and efficient, greatly reducing the time required for vulcanization, thereby improving production efficiency. Its vulcanization flatness is also good, which can make the vulcanization degree of rubber products more uniform in all parts of the vulcanization process, so that the physical and mechanical properties of rubber products such as tensile strength, wear resistance, and aging resistance can be significantly improved. This agent also has good scorch safety. It can effectively prevent the premature vulcanization of the rubber compound, that is, the occurrence of scorch phenomenon, and ensure the smooth progress of the processing process.
Because of its many excellent characteristics, N-cyclohexyl-2-benzothiazole sulfenamide is widely used in the production of tires, hoses, tapes, rubber shoes and other rubber products. It plays an indispensable and important role in the vigorous development of the rubber industry.

N-cyclohexyl-2-benzothiazole sulfenamide, this substance is white to off-white powder with a special smell. Its melting point is quite high, between about 80 ° C and 90 ° C, which makes it in a stable solid state at room temperature. It is slightly soluble in many common organic solvents, such as water, and is almost insoluble. However, in organic solvents such as acetone and benzene, it can show a certain solubility. This property makes it suitable for dispersion or participation in reactions according to the properties of the solvent in specific chemical processes.
From the stability point of view, N-cyclohexyl-2-benzothiazole sulfenamide is quite stable under conventional conditions, but when it encounters hot topics, open flames or strong oxidants, it is potentially dangerous, or there is a risk of combustion or explosion. In addition, this substance is more sensitive to moisture, and it may cause a gradual change in its chemical properties after moisture, which affects its performance and application effect.
Its density is also characteristic, about 1.26g/cm ³. This density makes it affect the density and phase distribution of the system when mixed with other substances. And during the heating process, it will gradually decompose, releasing gases containing sulfur and other elements. This decomposition characteristic must be carefully considered in some thermal processing processes to prevent negative effects on the environment and production process.

N-cyclohexyl-2-benzothiazole sulfenamide is stable in nature. In its molecular structure, benzothiazole ring is connected to cyclohexyl through sulfenamide bonds, which endows it with specific stability.
In terms of chemical properties, it can tolerate many common mild chemical environments. Under normal temperature and pressure, it does not have significant chemical reactions with many conventional organic solvents such as ethanol and acetone, and can exist stably in it. In a weak acid-base environment, there is no obvious decomposition or deterioration. This is due to the suitable bond energy of the chemical bonds in the molecule, and the spatial structure shields the reaction check point.
When encountering high temperature or strong oxidation and reduction environment, the stability will be challenged. Under high temperature, molecular vibration intensifies, and the hyposulfonamide bond may break, causing structural changes. Strong oxidants such as concentrated sulfuric acid, concentrated nitric acid, or strong reducing agents such as lithium aluminum hydride can chemically react with the substance, causing its chemical properties to change.
In summary, N-cyclohexyl-2-benzothiazole hyposulfonamide is chemically stable under general conventional conditions, but under extreme conditions, the stability will be destroyed.

N-cyclohexyl-2-benzothiazole sulfenamide has many things to pay attention to during production. This agent is a rubber vulcanization accelerator with specific properties, but when used, many details should not be ignored.
First, it is about the dosage. The dosage must be accurately controlled. If it is too small, the vulcanization process will be slow, and the physical properties of the rubber will not meet expectations. If it is too much, the vulcanization rate will be too fast, which will easily cause the rubber to burn, affect the quality of the product, or cause bubbles and deformation. The dosage must be accurately calculated according to the rubber category, formula and process requirements.
Second, temperature is also the key. Its activity is closely related to temperature. If the temperature is too high, the vulcanization reaction will be too fast, and the risk of scorch will be greatly increased. If the temperature is too low, the vulcanization efficiency will be low. In production, the temperature should be strictly controlled according to the vulcanization process to ensure the smooth progress of the reaction.
Third, the mixing process cannot be ignored. When mixing, it is necessary to ensure that the agent is evenly dispersed in the rubber. If the dispersion is uneven, the concentration of the local accelerator is too high or too low, which will cause different degrees of vulcanization and poor product performance. Appropriate mixing equipment and processes should be selected to improve the mixing effect.
Fourth, storage conditions are very important. This agent should be stored in a cool, dry and ventilated place, away from fire sources and oxidants. Damp or high temperature environment, it is easy to cause its performance changes, affecting the use effect. Storage period also needs to be paid attention to, expired products or inactive, its quality should be tested before use.
Fifth, safety protection should not be slack. Production personnel should wear necessary protective equipment, such as gloves, masks, etc., when operating. Although this agent is not a highly toxic drug, it may come into contact with the skin or inhale dust, or cause irritation and harm to the human body. The production site should also be well ventilated, and the sprinkled agent should be removed in time.

N-cyclohexyl-2-benzothiazole sulfenamide, which is often used as a promoter in the rubber industry. Its reactions with other substances are quite diverse.
In case of active nucleophiles, such as amines, nucleophilic substitution reactions can occur. The nitrogen atom of the amine has a lone pair of electrons, which attacks the sulfur atom of the sulfenamide, causing the sulfur-nitrogen bond to break and forming new compounds. This reaction may change the molecular structure and affect its activity and function in the vulcanization process of rubber.
meets some metal salts and also reacts. Metal ions can complex with the sulfur and nitrogen coordination atoms of the sulfenamide to form complexes. This complexation may change the stability and reactivity of the compound, and may have a significant impact on the vulcanization rate and cross-linking structure in rubber processing.
In acidic or basic environments, N-cyclohexyl-2-benzothiazole sulfenamide can be hydrolyzed. In acidic media, with the help of protons, sulfur-nitrogen bonds, carbon-nitrogen bonds, etc. may break or break to form products containing fragments such as benzothiazole and cyclohexylamine. Under basic conditions, hydroxide ions attack, which also causes bond-like cracking and hydrolysis products. Hydrolysis products or continue to react with other components in the rubber, affecting the properties of the rubber.
When heated, N-cyclohexyl-2-benzothiazole sulfenamide can be decomposed or rearranged. The decomposition products may initiate free radical reactions in the rubber system and promote cross-linking; the rearrangement products may have new reactivity check points, participate in subsequent rubber vulcanization-related reactions, and affect the final properties of the vulcanizate, such as strength and elasticity.