Hydroxypropyl methylcellulose, tseem hu ua hypromellose thiab cellulose hydroxypropyl methyl ether, yog tsim los ntawm cov paj rwb ntshiab heev cellulose thiab yog tshwj xeeb etherified nyob rau hauv alkaline tej yam kev mob.
qhov txawv:
yam ntxwv txawv
Hydroxypropyl methylcellulose: dawb los yog dawb fiber ntau zoo li hmoov los yog granules, teej tug mus rau ntau yam uas tsis yog-ionic hom nyob rau hauv lub cellulose sib tov, cov khoom no yog ib tug semi-synthetic, inactive viscoelastic polymer.
Hydroxyethyl cellulose yog xim dawb los yog daj, tsis muaj ntxhiab, tsis muaj tshuaj lom fiber ntau lossis cov hmoov hmoov, cov khoom siv tseem ceeb yog alkali cellulose thiab ethylene oxide etherification, uas yog non-ionic soluble cellulose ether.
Kev siv yog txawv
Hauv kev lag luam pleev xim, hydroxypropyl methylcellulose muaj cov solubility zoo hauv dej los yog cov kuab tshuaj organic ua cov thickener, dispersant thiab stabilizer.Polyvinyl chloride yog siv los ua cov xim pleev xim rau kev tshem tawm polymerization los npaj polyvinyl chloride, uas yog siv dav hauv cov tawv nqaij, cov khoom siv, cov txiv hmab txiv ntoo thiab zaub khaws cia, textiles thiab lwm yam lag luam.
Hydroxypropyl methylcellulose: yuav luag insoluble hauv ethanol, ether, acetone;soluble nyob rau hauv pob tshab los yog turbid colloidal tov nyob rau hauv dej txias, dav siv nyob rau hauv coatings, inks, fibers, dyeing, papermaking, tshuaj pleev ib ce, tshuaj tua kab, minerals khoom ua, roj rov qab thiab tshuaj industries.
sib txawv solubility
Hydroxypropyl methylcellulose: yuav luag insoluble hauv ethanol, ether, acetone;soluble nyob rau hauv ntshiab los yog me ntsis cloudy colloidal tov nyob rau hauv dej txias.
Hydroxyethyl cellulose (HEC): Nws tuaj yeem npaj cov kev daws teeb meem hauv cov viscosity sib txawv, thiab muaj cov ntsev ntsev zoo rau cov electrolytes.
Post lub sij hawm: Dec-01-2022