Hydroxypropyl methylcellulose HPMC is a white to slightly yellow powder or granular substance, tasteless, odorless, and non-toxic.
According to the viscosity size, it can be divided into low viscosity and high viscosity methyl methyl cellulose.
Scosity is one of the intrinsic properties of polymer materials and is formed by the resistance of intermolecular interaction of liquid during flow.
The viscosity properties are closely related to the gel membranogenesis, thickening, water retention, dispersion and bonding of high mers.Scocosity behavior refers to the change and adaptability of solution viscosity with environmental conditions.
Low viscosity hydroxypropylmethylcellulose HPMC has good water solubility, high transparency, good gel performance, strong mobility, surface a
This is significantly different from the general natural polymer materials (such as starch) to form a coagulation cavity under cooling conditions.In the course of the thermogel changes in the process.
The viscosity of hydroxypropyl methylcellulose solution changes greatly, and the viscosity behavior is influenced by many factors.
The first party investigated the viscosity change of low viscosity hydroxypropyl methyl cellulose under the changing conditions of temperature, pH, concentration, viscosity increase and salt.