Material Drying
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Defects in PES film casting
Fenómeno do problema
Pores and uneven thickness appear when PES solution is cast into film
Análise das causas
Solution concentration and viscosity too high or too low; solvent volatilization rate not properly controlled; hot air uneven during drying
Solução
Optimize the casting solution concentration and viscosity (adjust if necessary); control gradient drying conditions; optimize the air field uniformity of the casting machine
Conclusão principal
PES film formation has strict requirements on every step of the process
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