How to treat the waste gas generated during vulcanization of silicone products?silicone teething beads pacifier clip wholesaler

　　The blue smoke emitted by silicone products during vulcanization has a unique and unbearable odor, with complex components. Its composition and quantity largely depend on the formula and specific conditions during vulcanization. The volatile substances released from rubber during vulcanization mainly include the following:

　　① Remaining monomers in polymers: generally less than 1% of the polymer addition amount, which can basically evaporate during the processing before vulcanization.

　　② Antioxidants: The general loss is 0.1 to 0.5% of the added amount, with phenolic antioxidants being more volatile than amine antioxidants.

　　③ Vulcanization accelerator: Some of it is consumed during vulcanization.

　　④ Promoters and softeners, etc.: Loss of 0.05 to 1.0 when heated at 167 "C for 3 hours.

　　⑤ The loss of other mixtures is 0.1.

　　How to handle it correctly? Firstly, the hot air that has been used for heating is introduced into the absorption device, where it passes through three studios. The cooling water sprayed passes through the air in the opposite direction, and the air is adiabatic cooled to the dew point, while the condensed steam forms an unstable emulsion with the sprayed water. The air flows through the collector and enters the heat exchanger. After heating, the relative humidity of the air decreases by below 60%, and then undergoes a layer of active substances for final treatment. After that, the content of harmful gases can be reduced from i00~800 mg/m to 20 mg/m., Spray water is recycled in closed pipelines.

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