Material Analysis
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Large smoke in PVA processing
Fenómeno do problema
During PVA processing, large amount of smoke and volatiles overflow from the vent
Análise das causas
Low molecular volatiles in PVA evaporate at processing temperature; additive decomposition produces smoke; insufficient exhaust system
Solução
1) Lower processing temperature to reduce volatilization; 2) Increase exhaust system capacity; 3) Select low-volatility raw material grade
Conclusão principal
Large smoke is caused by volatiles evaporation; temperature reduction and exhaust are the key
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