Ngatitaurei nezve hydroxypropyl methyl celluloseHpcuye maitiro ekuyera viscosity yayo. Iyo viscosity pano inoreva kusanzwisisika kwekuona, iyo iri chirevo chakakosha kune hydroxypruppropyl methyl cellulose.
Standard. Nzira dzakajairika kuyerwa ndeyekutenderera kutenderedza Nzira yekutsunga kwe hydroxyprupyl methyl cellulose yaive capillary kuderedza.
Iyo nzira yekutsunga degree, uchishandisa UCHS Viscometer. Kazhinji kutsunga kwemhinduro ndeye 2% mhinduro mhinduro, iyo formula ndeye: v = KDT. V ndiyo viscosity muMPA. S uye k ndiyo viscomerer nguva dzose.
D ndiyo density pakugara ichidziya uye t ndiyo nguva kubva kumusoro kusvika pasi kuburikidza neViscometer mumasekondi. Iyi nzira yekuvhiya inonyanya kukonzerwa, kana paine nyaya isinganetsi.
Mazwi ari nyore kukonzera zvikanganiso, zvakaoma kuona kunaka kwehydroxyprupyl methyl cellulose. Izvozvi zvinowanzoshandiswa kuyera vhiza yeiyo rotary viscometer, iyo general kushandiswa kuChina.
Fomula yeNDJ-1 Viscometer is η = Kα. Ice the viscosity, zvakare muMPA. S, k ndiye coacffert we viscometer, uye α ndiko kuverenga kweiyo viscometer pointer.
Hydroxyprupyl methyl cellelose 2% viscosity bvunzo nzira:
1, Iyi nzira yakakodzera kutsunga kweiyo Dynamic viscosity yemvura isiri-newthian (polymer solution, kumiswa kwemvura, eturceant solution, nezvimwewo).
2. Zviridzwa uye zvishandiso
2.1 rotary viscometer (ndj-1 uye ndJ-4 zvinodiwa neChinese Paptacoeia)
2.2 nguva dzose dzekupisa kwemvura yekugezera inogara ichidziya tembiricha 0.10c
2.3 Tembiricha yekudziya degree ndeye 0.20C, iyo nguva nenguva inosimbiswa.
2.4 Frequency metres viscometers uchishandisa frequency stabilation matanho (senge ndj-1 naNDJ-4) kuchachengetwa. Kurongeka kwe1%. A
8 Wedzera anenge 100ml ye80-90 degree rinopisa mvura uye kumutsa 10min kupatsanura
Kunyanya kupararira, kumutsa uye kuwedzera mvura inotonhora kusvika 400ml yakazara. Zvichakadaro, simbisa nguva dzose kuti 30min kugadzira 2% (W / w) mhinduro, uye uiise mufiriji yeIce yekugezesa kusvika yaita chando chakatetepa pamusoro.
Tora ubudise uye uise mukati mekudziya tangi yekudziya yekuchengetedza tembiricha kusvika makumi maviri 0.1 ℃.
3.1 Kuisirwa uye kushanda kwechiridzwa kuchaitwa zvinoenderana nemirayiridzo yekuvhiya, uye rotor yakafambiswa ichasarudzwa zvichienderana neyekuvonekwa kwechigadzirwa chePharmacoopeia pasi pechinyorwa che chigadzirwa
Kutenderedza kumhanya.
3.2 Gadzirisa tembiricha yemvura inogara ichienderana nekutsunga pasi pechinhu chimwe nechimwe chezvinodhaka.
3.3 Chigadzirwa chebvunzo chakaiswa mumudziyo wakatsanangurwa nechiridzwa, uye deflecing angle (a) yakayerwa maererano nemutemo mushure memaminitsi makumi matatu ekugara achigara. Dzima mota uye wotangazve nekuda kwekutsunga kamwe
Musiyano uripo pakati pehunhu hunoreva hachifanirwe kupfuura 3%, zvimwe zviyero zvechitatu zvinofanirwa kuitwa.
3.4 Kuverenga kukosha kwekukosha kwemaviri emiedzo zvinoenderana neiyo formula yekuwana iyo Dynamic viscosity yeiyo yakaedzwa chigadzirwa.
4. Rekodha uye kuverenga
4.1 Rekodha iyo rotary viscometer model, rotor nhamba uye kumhanya inoshandiswa, viscomerer nguva dzose (k 'kukosha), yakayerwa tembiricha, uye chiyero chimwe nechimwe. Kukosha.
Iyo yekuverenga formula ye4,2
Dynamic viscosity (MPA "s) = Ka uko viscometer inogara yakayerwa neyakajairwa yemvura yekuzivikanwa viscosity uye a is a defle angle
Kutumira Nguva: Kubvumbi-25-2024