Hydroxypropyl Methylcellulose (HPMC)

Hydroxypropyl Methyl Cellulose feem ntau hu ua Hypromellose, HPMC, yog ntau yam uas tsis yog-ionic cellulose ether muab los ntawm ntuj polymers xws li refined paj rwb lossis ntoo pulp los ntawm cov txheej txheem tshuaj. Nws nthuav tawm raws li tsis muaj ntxhiab tsw, tsis muaj tshuaj lom, thiab saj tsis qab hmoov dawb. Cov tshuaj no siv zog ua kom yaj hauv dej kub thiab dej txias, tsim cov kua nplaum pob tshab nrog ntau yam khoom, ua rau nws nrhiav tau ntau yam kev siv.

HPMC boasts cov yam ntxwv tshwj xeeb xws li thickening zoo heev, khi, dispersing, emulsifying, film-forming, suspending, adsorbing, gelling, nto-active, dej tuav, thiab tiv thaiv colloid zog. Nws txoj kev siv dav dav thoob plaws hauv kev lag luam suav nrog kev tsim kho, tshuaj, khoom noj, PVC, ceramics, thiab cov khoom tu tus kheej / hauv tsev.

Nyob rau hauv kev tsim kho sector, HPMC ua hauj lwm raws li ib tug mus-rau thickener rau drymix mortars, pobzeb adhesives, dej-raws li xim, phab ntsa putty, thiab thermal rwb thaiv tsev mortar series. Tsis tas li ntawd, nws pom daim ntawv thov ua cov khoom siv tshuaj thiab cov khoom noj khoom haus, pab txhawb rau kev tsim cov PVC, ceramics, thiab detergents. HPMC kuj yog ib yam khoom muaj nyob rau hauv textiles, khoom tu tus kheej, thiab cov khoom tu tsev.

Tiv tauj peb

cov khoom paub meej

Hydroxypropyl Methylcellulose siv rau dab tsi?

piav 2

Hydroxypropyl Methylcellulose (HPMC) yog ntau yam polymer nrog ntau yam kev siv thoob plaws ntau yam lag luam. Nws cov khoom tshwj xeeb ua rau nws muaj txiaj ntsig hauv kev sib txawv formulations. Nov yog qee qhov kev siv ntawm Hydroxypropyl Methylcellulose:

Dab tsi yog General Properties ntawm HPMC?

piav 2

Hydroxypropyl Methylcellulose (HPMC) yog cellulose derivative nrog ntau yam khoom uas ua rau nws muaj txiaj ntsig zoo hauv ntau yam lag luam. Nov yog cov yam ntxwv dav dav ntawm HPMC:

Chemical Structure:

HPMC yog ib tug semi-synthetic polymer muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa.

Cov qauv tshuaj lom neeg ntawm HPMC suav nrog hydroxypropyl thiab methyl pawg txuas nrog cov pob txha cellulose.

Solubility:

HPMC yog soluble hauv dej, tsim cov tshuaj ntshiab, uas ua rau nws yooj yim rau kev koom ua ke rau hauv cov dej formulations.

viscosity:

Ib qho ntawm cov khoom tseem ceeb ntawm HPMC yog nws lub peev xwm los hloov viscosity. Nws tuaj yeem muab cov thickening rau cov kev daws teeb meem thiab cov formulations, pab txhim kho kev ntxhib los mos thiab kev ua haujlwm.

Kev ua yeeb yaj kiab:

HPMC muaj cov khoom tsim cov yeeb yaj kiab, uas ua rau nws muaj txiaj ntsig zoo hauv cov ntawv thov uas xav tau kev tsim cov yeeb yaj kiab tiv thaiv lossis cohesive.

Thermal Gelation:

HPMC nthuav tawm thermal gelation, txhais tau tias nws viscosity nce nrog kub. Cov cuab yeej no feem ntau yog siv los tswj cov tshuaj tso tawm formulations.

Kev Ua Haujlwm Nto:

HPMC tuaj yeem muaj cov khoom zoo li surfactant, txhim kho emulsification thiab dispersion hauv qee cov qauv.

Kev ruaj ntseg:

HPMC pab txhawb kev ruaj ntseg ntawm kev ncua, emulsions, thiab lwm yam formulations los ntawm kev tiv thaiv particle nyob los yog sib cais.

Kev tuav dej:

HPMC muaj peev xwm khaws tau dej, ua rau nws muaj txiaj ntsig hauv cov ntawv thov uas tswj cov dej noo yog qhov tseem ceeb, xws li hauv cov khoom siv.

Adhesion:

Hauv ntau qhov kev lag luam, HPMC txhim kho adhesion, txawm nyob rau hauv cov khoom siv xws li mortars lossis hauv cov txheej thiab cov nplaum.

Chemical Inertness:

HPMC yog chemically inert, txhais tau tias nws tsis hnov mob nrog rau lwm yam khoom hauv formulations, kom muaj kev ruaj ntseg thiab compatibility nrog ntau yam ntaub ntawv.

pH rhiab heev:

Cov khoom ntawm HPMC tuaj yeem cuam tshuam los ntawm pH ntawm cov tshuaj los yog kev tsim. Nws feem ntau ruaj khov tshaj pH dav.

Temperature Stability:

HPMC suav hais tias yog biodegradable, uas tuaj yeem ua tau zoo hauv qee qhov kev siv ib puag ncig thiab ruaj khov.

Cov khoom siv dav dav no ua rau HPMC muaj ntau yam thiab dav siv polymer hauv kev lag luam xws li tshuaj, kev tsim kho, khoom noj, tshuaj pleev ib ce, thiab lwm yam. Nws lub peev xwm los hloov kho rheological thiab kev ua haujlwm ntawm cov formulations pab txhawb rau nws txoj kev siv dav.

Specification

piav 2

Qhov tshwm sim	Dawb los yog dawb hmoov hmoov
Methoxy (%)	19.0-24.0 Nws
Hydroxypropoxy (%)	4.0 ~ 12.0 Nws
pH	5.0 ~ 7.5 hli
Moisture (%)	≤ 5.0
Residue ntawm ignition (%)	≤ 5.0
Gelling kub (℃)	70-90 ib
Particle loj	min.99% dhau los ntawm 100 mesh

Hom qib	viscosity (NDJ, mPa.s, 2%)	viscosity (Brookfield, mPa.s, 2%)
HPMC KM 8400	320-480 : kuv	320-480 : kuv
HPMC KM 860M	48000-72000 Nws	24 000-36 000 Nws
HPMC KM8100M	80000-120000	40000-55000
HPMC KM 8150M	120000-180000 Nws	55000-65000
HPMC KM 8200M	160000-240000 Nws	Muaj 70000
HPMC KM860MS	48000-72000 Nws	24 000-36 000 Nws
HPMC KM8100MS	80000-120000	40000-55000
HPMC KM8150MS	120000-180000 Nws	55000-65000
HPMC KM8200MS	160000-240000 Nws	Muaj 70000

Vim li cas thiaj xaiv kaimaoxing HPMC?

piav 2

Kev xaiv Kaimaoxing Hydroxypropyl Methylcellulose (HPMC) tuaj yeem muab ntau yam zoo, raws li lub tuam txhab paub txog nws txoj kev cog lus rau kev ua tau zoo, kev txawj ntse, thiab cov neeg siv khoom txaus siab. Nov yog qee qhov laj thawj vim li cas koj thiaj xav xaiv Kaimaoxing HPMC: