Hydroxypropyl methyl cellulose (HPMC)
Appearance : Milky white or white powder
Carbonization temperature : 280-300 %
Color temperature: 190-200 %
Particle size: 100 mesh pass rate is greater than 98.8%;80 mesh pass rate 99.9%;The particle size of special specification is 40-60 mesh
Apparent density: 0.25-0.70g/cm(usually about 0.5g/cm), specific gravity: 1.26-1.31
Solubility: soluble in water and some solvents, such as appropriate proportion of ethanol/water, propanol/water.The aqueous solution has surface activity, high transparency and stable performance.
Hydroxypropyl methyl cellulose, also known as hydroxypropyl methyl cellulose, fiber bundle hydroxypropyl methyl ether, is the selection of highly pure cotton fiber as raw material under alkaline conditions by special etherification and preparation.It has the characteristics of thickening ability, salt resistance, low ash content, PH stability, water retention, dimensional stability, excellent film forming, and extensive mildew resistance, dispersibility and adhesion.