Rubber products made from recycled rubber are easily mixed unevenly when using a kneader, especially the addition of vulcanizing agents.
When using recycled rubber to produce rubber products, vulcanizing agent is the most commonly used vulcanizing agent. When adding sulfur yellow, the temperature of the rubber must be cooled to below 100 ℃ to promote the dispersion of sulfur yellow and prevent scorching.
Promoter dispersion state affects the recycled rubber compounding rubber vulcanization and vulcanization rubber processing performance. The mixing process of recycled rubber has obvious influence on accelerator dispersion, for example, water in the accelerator TMTD will certainly cause poor dispersion. The physical properties (such as resilience) of the resulting rubber are best when zinc oxide and filler are added first and then accelerator is added when the recycled rubber is mixed with an open refiner; otherwise, it is easy to scorch.
When adding the vulcanizing agent to the kneader, it must be added evenly to the kneader, not concentrated in one place to add; add also need to pay attention to add speed HYL17Y4YES not too fast; once the vulcanizing agent falls below, it is not easy to disperse to the kneader, so as to affect the performance of the recycled rubber kneader.
When putting the vulcanizing agent of recycled rubber into the opening machine, if the vulcanizing agent falls below the drum, the vulcanizing agent must be put back into the compound again.