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