Material Drying
16 görüntüleme
PAA solution viscosity decline during storage
Sorun Belirtisi
The viscosity of PAA solution continuously decreases during storage
Neden Analizi
PAA undergoes hydrolytic degradation; storage temperature too high; residual moisture in the solvent
Çözüm
Store sealed at low temperature (0-5°C) after preparation; use as soon as possible (recommended within 24h); use dry solvent
Temel Çıkarım
PAA solution stability is its biggest challenge as a PI precursor
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