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1. Enhanced Workability One of the primary advantages of adding HPMC to gypsum formulations is the improvement of workability. HPMC modifies the viscosity of the mixture, allowing for smoother and more efficient application. This is particularly important for plastering and leveling tasks, where easy maneuverability is key.
hpmc for gypsum

The degree of substitution (DS) refers to the average number of hydroxyethyl groups substituting the hydroxyl groups in the cellulose. It is a crucial factor that determines the properties of HEC, such as its solubility, thickening power, and rheology. Manufacturers carefully control the conditions of the etherification process to achieve the desired DS, which can range from 0.1 to 2.5. Precise control during this stage ensures consistent performance of the HEC in various applications.
hydroxyethyl cellulose manufacturing process
