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What are the advantages and disadvantages of surface-modified and unmodified hydroxypropyl methyl cellulose in the thickening of soap-based system?

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What are the advantages and disadvantages of surface-modified and unmodified hydroxypropyl methyl cellulose in the thickening of soap-based system? The hydroxypropyl methyl cellulose used in soap-based shower gel system has too much brushing feeling. If there is insufficient viscosity, any suggestions?
Hydroxypropyl methyl cellulose (HPMC) surface modification and unmodified, there is no difference in the contribution to the viscosity of the soap system. The thickening effect mainly depends on the molecular weight of HPMC. Whether the surface modification only affects the dispersion Craft. In addition, the content of different HPMC substituent groups is different, and the foaming effect of the system will also be different. The type of HPMC surface modification is similar to HEC, and HPMC with improved surface hydrophobicity has better dispersibility in cold water. HPMC without surface treatment, such as Ashland HPMC, can be dispersed with a small amount of hot water, or dispersed with polyols in the formulation, and then added to the soap system.
The application of hydroxypropyl methyl cellulose (HPMC) in soap-based shower gel, if it is a pure soap-based system, if you want to reduce the silky feeling, you can choose low molecular weight HPMC.


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