Why the dosing order should be specified during the refining?

27/04/2024
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The purpose of the dosing order is to improve the efficiency of refining, to ensure the quality of the mixed rubber. Generally speaking, the dosing order is.
(1) add plasticizing rubber softening, easy to mix with the agent.
(2) add small drugs: zinc oxide, stearic acid, accelerator, antioxidant, etc., these are important components of the rubber, the first to join to facilitate their uniform dispersion in the rubber.
(3) Carbon black or other fillers such as clay, calcium carbonate and so on.
(4) Liquid softener, rubber material expansion so that carbon black and rubber is easy to mix.
If not according to this dosing order (except for special requirements of the formula), it will seriously affect the quality of mixed rubber.