What additives are used in the production of polyvinyl chloride?
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Everyone: What additives are used in the production of polyvinyl chloride? A generous reward will be given to those who answer!
Many additives are used, such as dispersants, initiators, terminators, zinc stearate, ammonia water, TZ solution, anti-fisheye agents, anti-sticking agents for reactors, corrosion and scale inhibition agents, defoamers, chelating agents, etc.
Coating kettle solution, buffer, dispersant, initiator, terminator, defoamer, chain regulator, polymerization inhibitor, etc
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Coating liquid: Forms a hydrophobic film on the walls of the polymerization reactor. Buffer: Regulates the pH level of the reaction mixture. Dispersant: Affects the shape of PVC particles. Initiator: Triggers the polymerization reaction. Terminator: Stops the polymerization reaction. Defoamer: Added during discharge to help with defoaming, enabling more efficient separation in the stripping tower. Chain regulator: Controls the length of polymer chains; generally used for producing higher-grade PVC. Inhibitor: Prevents gas-phase polymerization when recovering vinyl chloride