Rubber CPE is a special synthetic rubber with excellent comprehensive performance, heat-resistant oxygen-ozone aging, and good flame retardancy. Mainly used in: wire and cable (cables for coal mines, wires specified in UL and VDE standards), hydraulic hoses, automotive hoses, tapes, rubber sheets, PVC profile pipe modification, magnetic materials, ABS modification, etc.
Among them, the application mainly has the following functions:
1. Reinforce the filling system
CPE is a kind of non-self-reinforcing rubber, and it needs a reinforcing system to achieve better strength. Its reinforcing filling system is similar to general rubber. The reinforcing agent is mainly carbon black and white carbon black. White carbon black can improve its tear resistance, and can form a meta-methyl white system to improve its adhesion to the skeleton. . CPE has high filling properties, and the filling system mainly includes calcium carbonate, talcum powder, clay and so on.
2. Plasticizing system
Ester plasticizers are the most commonly used plasticizers for CPE, such as dioctyl phthalate (DOP) and dioctyl adipate (DOA). Their solubility parameters are close to those of CM and their compatibility is good. DOA and DOS are used in rubber compounds to give them excellent cold resistance.
3. Stable protection system
When CPE is heated or vulcanized (non-peroxide vulcanization system), hydrogen chloride will be released. Therefore, stabilizers with acid absorption should be used in the formulation, such as calcium stearate, barium stearate, tribasic lead sulfate or Magnesium oxide.
Skype: verdecable