Material Analysis
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Unstable Viscosity of CMC Solution Preparation
Fenómeno del problema
Viscosity of CMC solution preparation fluctuates ±30%, exceeding ±10%
Análisis de la causa
CMC molecular weight distribution is uneven with batch differences; solution preparation temperature fluctuates; stirring is insufficient
Solución
1)Select CMC with narrow molecular weight distribution; 2)Constant solution preparation temperature ±1°C; 3)Stir fully for 30min to ensure uniformity
Conclusión clave
CMC viscosity stability is determined by molecular weight distribution and solution preparation conditions
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