Hydroxypropyl methylcellulose (HPMC)

Hydroxypropyl methylcellulose tshwj xeeb yog tau los ntawm esterification ntawm ultra-ntshiab paj rwb cellulose nyob rau hauv alkaline tej yam kev mob.

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Hauj lwm lawm

Kev piav qhia

Khoom npe: Hydroxypropyl methylcellulose (HPMC)
MF: C12H20010
Purity: 99.9%
CAS Naj Npawb: 9004-65-3
EINECS tus lej: 220-971-6
Cov tsos mob: Dawb hmoov

daim ntawv pov thawj ntawm authenticity

Index npe	TEST BASE	TEST RESULT
Cim	Cov khoom no yog xim dawb los yog dawb, tsis muaj ntxhiab, fibrous lossis granular hmoov. Xyaum insoluble nyob rau hauv kiag li ethanol, ether los yog acetone: nyob rau hauv dej txias nws swells rau hauv ib tug ntshiab los yog me ntsis cloudy colloidal tov.	Cov khoom no yog xim dawb los yog dawb, tsis muaj ntxhiab, fibrous lossis granular hmoov. Xyaum insoluble nyob rau hauv kiag li ethanol, ether los yog acetone: nyob rau hauv dej txias nws swells rau hauv ib tug ntshiab los yog me ntsis cloudy colloidal tov.
Kev txheeb xyuas -1	Yuav tsum yog lub nplhaib xiav-ntsuab	Blue-ntsuab nplhaib
Kev txheeb xyuas -2	Tsim ib zaj duab xis hloov tau	Tsim ib zaj duab xis hloov tau
Kev txheeb xyuas -3	Flocculation kub yog siab dua los yog sib npaug li 50 degrees.	62 0 degrees
PH	pH tus nqi {{0}} 0-8.0	6.3
Viscosity mPa. Nrog	80% - 120% ntawm viscosity 15	17
Insoluble hauv dej%	Tsawg dua lossis sib npaug rau 0.5	0.4
Kev ziab kom qhuav%	Tsawg dua lossis sib npaug rau 5.0	3.2
Residue ntawm ignition%	Tsawg dua los yog sib npaug li 1.5	0.9
Cov hlau hnyav ppm	Tsawg dua los yog sib npaug li 20	10
arsenic%	Tsawg dua lossis sib npaug rau 0.0002.	0.0001
Aerobic kab mob CFU/g	Tsawg dua los yog sib npaug li 1000	10
Cov kab mob thiab cov poov xab CFU/g	Tsawg dua los yog sib npaug li 100	10
coli	Tsis muaj	Tsis pom
Hydroxypropoxy%	7. 0-12 0	8.2
Methoxy%	27. 0-30 0	29.1
NYEEM NTXIV:	Cov khoom ua tau raws li tus qauv saum toj no.

Daim ntawv thov

1. Ib qho kev siv ntau tshaj plaws ntawm hydroxypropyl methylcellulose yog nyob rau hauv kev tsim kho kev lag luam. Nws yog siv los ua cov thickener thiab binder hauv cov cement thiab gypsum-based khoom, nrog rau cov mortars, grouts, plasters thiab cov cements sib koom ua ke, txhawm rau txhim kho lawv cov haujlwm, lub zog thiab cov khoom tuav dej. Nws kuj ua raws li kev tiv thaiv colloid, tiv thaiv nag lossis daus thiab sib cais ntawm cov khoom sib xyaw. Tsis tas li ntawd, raws li cov dej-soluble polymer, nws txhim kho kev sib txuas thiab adhesion ntawm cov khoom siv hauv tsev, ua rau cov khoom muaj zog, zoo ib yam.

2. Lwm daim ntawv thov tseem ceeb ntawm hydroxypropyl methylcellulose yog nyob rau hauv kev lag luam kws tshuaj. Nws yog siv raws li ib tug binder, thickener thiab disintegrant nyob rau hauv cov ntsiav tshuaj formulations los txhim kho cov ntsiav tshuaj lub zog, disintegration thiab solubility. Nws yog non-toxic thiab inert, ua rau nws haum rau siv nyob rau hauv qhov ncauj thiab tshuaj pleev ib ce formulations. Nws kuj tseem siv tau rau hauv lwm cov khoom siv tshuaj xws li tshuaj kho qhov muag thiab tshuaj pleev qhov ntswg vim nws cov khoom mucoadhesive thiab yooj yim ntawm kev npaj.

3. Hauv kev lag luam khoom noj khoom haus, HPMC yog siv los ua cov thickener, emulsifier thiab stabilizer hauv cov khoom noj xws li cov khoom noj siv mis, cov khoom ci, cov kua ntses thiab cov zaub xam lav. Nws kuj yog siv los encapsulate vitamins thiab minerals kom ruaj khov thiab bioavailability. Nws yog cov khoom noj muaj kev nyab xeeb thiab ntuj tsim, ua rau nws yog ib qho kev xaiv rau cov khoom siv hluavtaws.

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