The Effect of Temperature on the Viscosity of Cellulose

The viscosity of hydroxypropyl methylcellulose HPMC is inversely proportional to temperature, that is, the viscosity increases with the decrease of temperature. We usually say that the viscosity of hydroxypropyl methylcellulose HPMC refers to the detection result of hydroxypropyl methylcellulose HPMC at a temperature of 20 degrees Celsius in a 2% aqueous solution.

In practical applications, it should be noted that in areas with large temperature differences between summer and winter, it is recommended to use a relatively low viscosity in winter, which is conducive to construction. Otherwise, when the temperature is low, the viscosity of hydroxypropyl methylcellulose HPMC will increase, and the hand feeling will be heavy when scraping.

Medium viscosity of hydroxypropyl methylcellulose HPMC: 75000-100000 Mainly used for putty powder

Reason: moderate viscosity, good water retention

Hydroxypropyl methylcellulose HPMC high viscosity: 150000-200000 Mainly used for thermal insulation mortar, ordinary mortar, special mortar, tile adhesive, etc.

Reason: high viscosity, the mortar is not easy to sag, and the construction is improved.

But generally speaking, the higher the viscosity, the better the water retention, so the general dry powder mortar uses high viscosity hydroxypropyl methylcellulose HPMC

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