What are the properties of hydroxypropyl methyl cellulose ?
(1) hydroxypropyl methyl cellulose has the characteristics of hot gel, that is excellent solubility in cold water and insoluble in hot water. As long as it is placed in cold water, it can be completely dissolved in transparent solution.Some grade products are basically insoluble in hot water above 60℃ and can only swell. Their performance can be used for washing and purification, which can reduce costs, reduce pollution and improve production safety.
(2) hydroxypropyl methyl cellulose is a non-ionic mixed cellulose ether, its solution does not contain ionic charge, does not interact with metal salts or ionic compounds, and this property can play a role in the pharmaceutical field to affect its efficacy.
(3) hydroxypropyl methyl cellulose has a strong anti-enzyme activity, and with the increase of the degree of substitution, the enzyme tolerance is also improved, the manufacture of drugs than other sugars, starch products have great benefits, can reduce the possibility of mold.It can be widely used in coating and food industry.
(4) hydroxypropyl methyl cellulose with metabolic inertia, as a drug carrier, is not metabolized or absorbed, so it does not provide heat in food, and has unique applicability for diabetes, low-calorie, salt-free and changeless food.(5) hydroxypropyl methyl cellulose aqueous solution has excellent film forming properties, can be pharmaceutical, pill, coating to provide good conditions.If glycerol is added, it forms a colorless, transparent, tough function and also increases its flexibility.
In addition, hydroxypropyl methyl cellulose has good dispersion, emulsification, thickening, adhesion, water retention and adhesion, widely used in medicine, petrochemical, construction, ceramics, textiles, food, cosmetics, synthetic resin, paint and electronics industry.