The first type: vulcanization system additives

There are mainly vulcanizing agents, accelerators and activators.

1. Curing agents include: ① sulfur, selenium, tellurium; ② sulfur-containing compounds; ③ organic peroxides; ④ quinones; ⑤ Amine compounds; ⑥ Resins; ⑦ Metal oxide; ⑧ Other vulcanizing agents.

2. Accelerators include: ① dithiocarbamates; ② xanthates; ③ Tiuram class; ④ thiazoles; ⑥ secondary sulfonamides; 7 Amines and aldehydes amine condensates; ⑧ Guanides; ⑨ Thioureas.

3. Activators include: ① zinc oxide; ② Magnesium oxide; ③ Stearic acid, etc.

The second category: protection system additives

Mostly antioxidants and flame retardants.

1. The main antioxidants are amines, phenols, heterocyclic, phosphite esters, protective wax and so on.

Amines include: ① naphthylamine series; ② Quinoline series; ③ diphenylamine series; ④ p-phenylenediamine series.

Phenols include: ① alkylated mononuclear phenol; ② alkylated dinuclear phenol; ③ Alkylated polynuclear phenol.

There are also heterocyclic and phosphite esters.

Protective wax includes: microcrystalline wax, ground wax and white wax.

2. Flame retardants include: ① bromine series; ② Chlorine series; ③ Phosphorus series; ④ Inorganic substances.

The third category: operation system auxiliaries

The main plasticizer (softener), dispersant, homogenizer, viscosifier, release agent and anti-coke agent.

The fourth type: reinforcing filling system additives

Mainly carbon black, white carbon black, inorganic reinforcing agents and fillers and organic reinforcing agents and fillers.

The fifth type: bonding system additives

There are mainly M-A-white system, cobalt salt bonding accelerator, triazine adhesives, impregnated adhesives and adhesives.

Category 6: Other auxiliaries

Coloring agent, foaming agent, defoamer, thickening agent, pasting agent, wetting agent, emulsifier, stabilizer, coagulant, heat sensitive agent, anti-webbing agent, preservative, preservative, flame retardant, antistatic agent, aromatic agent and anti-biting agent