Many users seldom pay attention to the problem of hydroxypropyl methyl cellulose HPMC gel temperature. Nowadays, hydroxypropyl methyl cellulose HPMC is generally distinguished by viscosity, but for some special environments and special industries, only the viscosity of the product is reflected. Not enough, the following briefly introduces the hydroxypropyl methylcellulose HPMC gel temperature.
The content of methoxy group is directly related to the degree of etherification of cellulose ether. The content of methoxy group can be adjusted by controlling the formula, reaction temperature and reaction time. At the same time, the degree of etherification affects the degree of substitution of hydroxyethyl or hydroxypropyl. Therefore, the water retention of cellulose ether with high gel temperature is generally a little bit worse. This production process has to be explored, so it is not because the methoxy content is low, the price of cellulose ether is low, on the contrary, the price will be higher.
QUALICELL’s hydroxypropyl methyl cellulose HPMC hydroxypropyl content is 25%. The gel temperature is a critical point for the application of cellulose ether. When the ambient temperature exceeds the gel temperature, the cellulose ether will precipitate out of the water and lose its water retention. Qualicell’s cellulose ether gel temperature is 65 degrees, which can basically meet the needs of mortar and putty use environment (except for special environments). If you purchase QualiCell HPMC, please inform in advance if you have special requirements.
Post time: Jan-06-2022