Hydroxypropyl methylcellulose, tseem hu ua hypromellose thiab cellulose hydroxypropyl methyl ether, yog ua los ntawm paj rwb cellulose ntshiab heev thiab tshwj xeeb yog etherified nyob rau hauv alkaline tej yam kev mob.
qhov txawv:
cov yam ntxwv sib txawv
Hydroxypropyl methylcellulose: dawb los yog dawb fiber zoo li hmoov los yog granules, uas yog ntau hom non-ionic hauv cov cellulose sib xyaw, cov khoom no yog ib qho semi-synthetic, inactive viscoelastic polymer.
Hydroxyethyl cellulose yog cov fiber dawb los yog daj, tsis muaj ntxhiab, tsis muaj tshuaj lom lossis hmoov khov, cov khoom siv tseem ceeb yog alkali cellulose thiab ethylene oxide etherification, uas yog cov cellulose ether uas tsis yaj tau.
Kev siv yog txawv
Hauv kev lag luam pleev xim, hydroxypropyl methylcellulose muaj cov dej zoo solubility hauv dej lossis cov organic solvents ua ib qho thickener, dispersant thiab stabilizer. Polyvinyl chloride yog siv los ua cov xim tshem tawm rau kev ncua polymerization los npaj polyvinyl chloride, uas yog dav siv hauv tawv, cov khoom ntawv, txiv hmab txiv ntoo thiab zaub khaws cia, textiles thiab lwm yam lag luam.
Hydroxypropyl methylcellulose: yuav luag tsis yaj hauv ethanol, ether, acetone; yaj hauv cov kua pob tshab lossis turbid colloidal hauv dej txias, siv dav hauv cov txheej txheem, inks, fibers, dyeing, papermaking, tshuaj pleev ib ce, tshuaj tua kab, cov zaub mov ua cov khoom lag luam, rov qab roj thiab kev lag luam tshuaj.
kev yaj sib txawv
Hydroxypropyl methylcellulose: yuav luag tsis yaj hauv ethanol, ether, acetone; yaj hauv cov kua colloidal meej lossis me ntsis pos huab hauv dej txias.
Hydroxyethyl cellulose (HEC): Nws tuaj yeem npaj cov tshuaj hauv ntau qhov viscosity sib txawv, thiab muaj cov khoom zoo rau cov electrolytes.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-01-2022