What are the changes in the physical and chemical properties of raw rubber after plasticizing?

Raw rubber after plasticizing, due to the strong mechanical force and oxidation, the molecular structure and molecular weight of rubber will be changed to a certain extent, so the physical and chemical properties will also change. will also change. Expressed in: elasticity decreases, plasticity increases, solubility increases, the viscosity of the rubber solution decreases, the adhesive properties of the rubber material increases. But with the raw rubber plasticity increases, the mechanical strength of vulcanized rubber decreases, permanent deformation increases, wear resistance and aging resistance are reduced. Therefore, the plasticizing of raw rubber is only beneficial to the processing of rubber, but not to the vulcanizing process. Therefore, the plasticizing of raw rubber is only beneficial to the processing of rubber, but unfavorable to the performance of vulcanized rubber.