1. Why can the mixer change the high elastic raw rubber into plastic rubber?

With the open mixer for plasticizing, mainly through the shear and extrusion effect of the two relative rotation of the roller on the rubber material, so that the original macromolecular chain of the rubber material is interrupted, so that the original elasticity of the rubber material is reduced, the plasticity is improved, which is conducive to the following processing procedures.

At present, the main plasticizing methods used are roller plasticizing method and thin pass plasticizing method.

2, how to mix the glue and all kinds of coordinating agent evenly together?

Open mixer in the process of rubber refining is mainly rely on the two relative rotation of the roller on the rubber material extrusion, shearing effect, after many kneading, as well as the chemical action accompanied by the kneading process, will break the chain of macromolecules inside the rubber, make the formula of various components mixed and uniform, and finally achieve the purpose of rubber refining. The film discharged from the gap between the rollers is coated on one roller due to the difference in the surface speed and temperature of the two rollers, and then returns to the two rollers again, so many times to complete the mixing effect. During plasticizing, the molecular chain of rubber changes from long to short, and the elasticity changes from large to small; During mixing, the surface of each component of the rubber material is constantly updated and evenly mixed. In the intermittent operation of the mill, after feeding the rubber material repeatedly through the roller distance several times, finally cut the next piece.

In the opening mill used for continuous operation, the rubber material is continuously added from one end of the roller, and repeatedly passes the roller several times according to the time specified in the rubber refining process, and continuously cuts the required rubber strip from the other end of the roller.