Hydroxypropylmethylcellulose (HPMC) yog ib qho cellulose derivative uas feem ntau siv rau hauv kev tsim ntawm ntau yam khoom, nrog rau cov dej ntxuav tais diav. Nws ua raws li ntau yam thickener, muab viscosity thiab stability rau cov kua formulations.
Lub ntsiab lus ntawm HPMC:
HPMC yog ib qho kev hloov kho hluavtaws ntawm cellulose, lub ntuj polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa. Nws yog tsim los ntawm kev hloov kho cellulose siv propylene oxide thiab methyl chloride. Cov khoom tsim tau yog cov dej-soluble polymer nrog cov khoom tshwj xeeb rheological.
Lub luag haujlwm ntawm HPMC hauv cov kua ntxuav tais diav:
Kev Tswj Viscosity: Ib qho ntawm cov haujlwm tseem ceeb ntawm HPMC hauv cov kua ntxuav tais diav yog tswj cov viscosity. Nws muab cov kua qee qhov sib xws, txhim kho nws qhov kev ntxhib los mos thiab flowability. Qhov no yog qhov tseem ceeb los xyuas kom meej tias lub tshuab ntxhua khaub ncaws tseem nyob ntawm qhov chaw thiab tshem tawm cov roj thiab cov grime.
Kev ruaj ntseg: HPMC txhim khu kev ruaj ntseg los ntawm kev tiv thaiv theem sib cais thiab nag lossis daus. Nws pab kom cov khoom sib xws thiab ruaj khov nyob rau lub sijhawm, ua kom muaj kev ua tau zoo ib yam.
Txhim kho foaming: Ntxiv nrog rau nws cov nyhuv thickening, HPMC kuj pab txhim kho foaming zog ntawm cov dej ntxuav tais diav. Nws pab tsim cov npuas dej ruaj khov uas pab hauv kev ntxuav los ntawm kev ntxiab thiab tshem tawm cov av thiab grime.
Compatibility nrog surfactants: Cov kua ntxuav tais diav muaj surfactants, uas yog qhov tseem ceeb rau kev zom cov roj. HPMC yog sib xws nrog ntau yam ntawm surfactants, ua rau nws ib tug haum thickener rau cov formulations.
Kev txiav txim siab ib puag ncig: HPMC suav tias yog ib puag ncig tus phooj ywg thiab muaj kev nyab xeeb rau kev siv hauv tsev. Nws yog biodegradable thiab tsis ua rau muaj kev pheej hmoo loj rau tib neeg kev noj qab haus huv lossis ib puag ncig.
Daim ntawv thov thiab formulations:
HPMC feem ntau ntxiv rau cov tshuaj ntxuav tais diav thaum lub sijhawm tsim khoom. Tus nqi ntawm HPMC siv yog nyob ntawm qhov xav tau viscosity thiab lwm yam kev cai tshwj xeeb ntawm cov khoom. Formulators xav txog yam xws li surfactant hom thiab concentration, pH qib, thiab tag nrho cov hom phiaj kev ua tau zoo.
Hydroxypropyl methylcellulose (HPMC) plays lub luag haujlwm tseem ceeb hauv cov kua dej ntxuav tais diav, muab viscosity tswj, ruaj khov thiab txhim kho foaming. Nws compatibility nrog surfactants thiab ib puag ncig tus phooj ywg ua rau nws yog ib qho kev xaiv nrov hauv cov khoom siv tu tsev.
Post lub sij hawm: Jan-29-2024