Acylmethylcellulose HPMC is white to yellowish powder or granular, tasteless, odorless and non-toxic. According to the at first viscosity size, it can into hydroxypropyl methyl cellulose with low viscosity and high viscosity.
Scocosity is one of the intrinsic properties which by the intermolecular interaction of liquid during flow. The viscosity properties are closely related to the gelation, membranogenesis, thickening, water retention, dispersion and at first bonding of the polymers. Scocosity behavior refers to the change and adaptability of solution viscosity with environmental conditions.
Low viscosity hydroxypropyl at first methylcellulose HPMC has good water solubility, high transparency. Good gel performance, strong mobility, surface activity, is widely use in pharmaceutical food, petrochemical, construction, textile and electronic industries.
Industrial products such as thin film prepared by cellulose ether have high mechanical strength, flexibility, heat resistance and cold resistance. And have good compatibility at first with various resins and plasticizers, which is a good coating material. However, the low-viscosity hydroxypropyl methyl cellulose water solution has a thermal gel behavior, and dissolve again after cooling. This is significantly different from the at first general natural polymer materials (such as starch) that form gels under cooling conditions. In the process of thermogel change, the viscosity of hydroxypropyl methylcellulose solution changes greatly. Viscosity behavior is at first influenced by multiple factors.