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Liquid thickeners also play an essential role in improving the texture of beverages. For instance, in fruit juices and smoothies, thickeners can contribute to a creamy mouthfeel, enhancing the overall drinking experience. They can also provide stability in products containing pulp or fiber, preventing sedimentation and separation. This is particularly important in ready-to-drink products, where visual appeal is vital for consumer acceptance.

After treating cellulose with sodium hydroxide, the next step involves introducing hydroxypropyl and methyl groups to the cellulose backbone. Methyl chloride and propiolactone are commonly used for this purpose. The methylation process typically occurs through a reaction between alkali cellulose and methyl chloride, resulting in the substitution of hydroxyl groups with methyl groups. Simultaneously, the hydroxypropylation process occurs through the reaction of hydrated cellulose with propylene oxide or other hydroxypropylating agents, yielding hydroxypropyl groups.

One common type of cement bonding additive is a polymer-based admixture. This type of additive works by forming a chemical bond between the cement and the surface, creating a strong and durable bond that is resistant to cracks and water damage. Polymer-based additives are often used in high-stress areas, such as bridges, highways, and industrial floors, where a strong bond is essential.

3. Shear Rate The viscosity of HEC can also vary with different shear rates. When a solution is subjected to high shear forces (such as during mixing or pumping), its viscosity may decrease—a phenomenon known as shear-thinning. This property is particularly advantageous in industries such as paints and coatings, where easy application is necessary.

In recent years, the HPMC powder market has displayed notable trends. The push for sustainable and eco-friendly construction practices has led to increased demand for HPMC, as it is often viewed as a greener alternative to synthetic additives. Furthermore, the global pharmaceutical sector's growth, particularly in the wake of the COVID-19 pandemic, has further stimulated demand.