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What is rubber activator?

What are the additives used in the rubber production process?


Rubber additives activator (zinc oxide, stearic acid), vulcanizing agent (sulfur, peroxide), accelerator, antioxidant, filling and strengthening agent (carbon black, calcium powder), plasticizer, resin, etc.


Where are rubber activators used? Thank you?


Performance and Application: This product is a red storage viscous liquid. Adding 0.3-0.5% of this product during the desulfurization process of recycled rubber can shorten the desulfurization time by 3-6 times and effectively improve the product's plasticity. It has high activity for recycled styrene butadiene, natural rubber, chloroprene, and nitrile rubber.


What chemical reaction will occur with free sulfur in rubber activator 420


What chemical reaction will occur with free sulfur in rubber activator 420


Surfactants refer to substances that can cause significant changes in the interface state of their solution system by adding a small amount.


Surfactant action:


It has fixed hydrophilic and lipophilic groups and can be arranged in a directional manner on the surface of the solution.


The molecular structure of surfactant is amphiphilic: one end is hydrophilic group, the other end is hydrophobic group; Hydrophilic groups are often polar groups, such as carboxylic acid, sulfonic acid, sulfuric acid, amino or amino groups and their salts, and hydroxyl, acylamine, ether bonds, etc. can also serve as polar hydrophilic groups; Hydrophobic groups are often non polar hydrocarbon chains, such as hydrocarbon chains with more than 8 carbon atoms.


Surfactants are divided into ionic surfactants (including cationic and anionic surfactants), non ionic surfactants, amphoteric surfactants, composite surfactants, and other surfactants.


What is the effect of recycled rubber activator?


It has the effect of reviving rubber, usually with the reviving agent dipentadienyl


Formula and Process of Regenerated Rubber Activator


Regarding the formula, we can accurately determine the proportion of each component through sample analysis, and with the help of technical support in the later stage, we can assist you in production. How can you contact us?


What additives need to be added to produce rubber or plastic? What are the functions of each auxiliary agent


Production of rubber or plastic requires additives such as curing agents (vulcanizing agents), activators, accelerators, fillers, plasticizers, etc. The specific functions can be found in relevant books or reviews!


What is the difference between rubber vulcanization and desulfurization


With diphenyl Disulfide (DD) as desulfurizer, natural rubber vulcanizate (NR) was regenerated under supercritical CO2. The results show that using supercritical CO2 fluid as a solvent can achieve desulfurization and degradation of vulcanized NR. The desulfurization and degradation conditions are that the density of CO2 is not less than 0.4722g/cm3, the reaction temperature is not less than 160 ℃, and the reaction time is not less than 90 minutes; The sol rate increases with the increase of degradation temperature and time; During the degradation process, in addition to S-S and S-C breaks, some main chain breaks also occurred, resulting in a decrease in the relative molecular weight of the rubber after degradation; Desulfurizer DD can effectively open sulfur cross-linking bonds, and a small amount of benzene ring structure is introduced into the regenerated rubber molecules after desulfurization and degradation.


Diphenyl


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