Kambani yeTiantai Cellulose inonyanya kuita tsvakurudzo, kusimudzira, kugadzira uye kushambadza zvigadzirwa zveHPMC zvehydroxypropyl methyl cellulose. Kuchena kweHPMC hydroxypropyl methyl cellulose ndiyo nyaya inonyanya kufungwa nezvayo kune vagadziri nevashandisi. Pano isu vagadziri vehydroxypropyl methyl cellulose kuti tipe sumo yakadzama, ndinotarisira kuverenga kuti ndibatsire.
Kuziva kuchena kweHPMC hydroxypropyl methyl cellulose
Nheyo yacho
Hydroxypropyl methyl cellulose HPMC hainyungudike mu 80% ethanol. Mushure mekunyungudika nekusukwa kakawanda, 80% ethanol yakanyungudika mumuenzaniso inoparadzaniswa yobviswa kuti pave ne hydroxypropyl methyl cellulose HPMC yakachena.
Rmumiririri
Kunze kwekunge zvataurwa neimwe nzira, ma reagents akasimbiswa kuti akaongororwa uye akacheneswa kana kuti akabviswa maion kana mvura yakachena yakafanana chete ndiwo anofanira kushandiswa mukuongorora.
95% ethanol (GB/T 679).
Ethanol, 80% solution, sanganisa 95% ethanol (E.2.1) 840mL nemvura kusvika 1L.
BMI (GB/T 12591).
Chishandiso
Zvishandiso zvakajairika zverabhoritari
Chinokurunga chinobatidza magnetic heating, chine urefu hwe3.5cm.
Chinopfungaira chekusefa, 40mL, aperture 4.5μm ~ 9μm.
Dhishi regirazi pamusoro, φ10cm, gomba repakati.
Chinwiwa, 400mL.
Kugeza nemvura tembiricha yenguva dzose.
Ovheni, inogona kudzora tembiricha pa105℃±2℃.
Chirongwa ichi
Yera 3g yemuenzaniso nemazvo (yakarurama kusvika 0.001g) mubeaker rinorema nguva dzose, wedzera 150mL 80% ethanol pa60℃ ~ 65℃, isa magnetic rod mu magnetic heating stirrers, vhara ndiro yepamusoro, isa thermometer muburi repakati, vhura heating stirrers, gadzirisa kumhanya kwekukurunga kuti usaparadze, uye chengetedza tembiricha pa60℃ ~ 65℃. Kurunga kwemaminitsi gumi.
Rega kusanganisa, isa bhodhoro mumvura inodziya ye60℃ ~ 65℃, mira wakamira kuti zvinhu zvisinganyunguduke zvigadzikane, wodira mvura yacho yese sezvinobvira mufiriji inodziya yemafuta.
Wedzera 150mL 80% ethanol pa60℃ ~ 65℃ mubeaker, dzokorora mashandiro ekukurunga nekusefa ari pamusoro apa, wobva wasuka beaker, dhishi repamusoro, stirving rod uye thermometer nokungwarira ne80% ethanol pa60℃ ~ 65℃, kuitira kuti chinhu chisinganyunguduke chiendeswe zvachose mubeaker, wobva wasuka zviri mukati mebeaker. Kukweva kunofanira kushandiswa panguva iyi uye kuomeswa kwekeke kunofanira kudzivirirwa. Kana zvidimbu zvikapfuura nepasefa, kukweva kunofanira kuderedzwa.
Cherechedza: zvinofanira kuve nechokwadi chekuti sodium chloride iri mumuenzaniso yagezwa zvachose ne80% ethanol. Kana zvichidikanwa, 0.1mol/L silver nitrate solution uye 6mol/L nitric acid zvinogona kushandiswa kutarisa kana filtrate ine chloride ions.
Pakupisa kwemukamuri, zviri mufiriji zvakagezwa kaviri ne95% ethanol pa50mL, uye pakupedzisira ne ethyl mi20mL yekugezwa kwechipiri. Nguva yekusefa haifanirwe kunge yakareba. firiji yakaiswa mubeaker ndokudziiswa mubhavhu rekugezesa nemhepo kusvika pasina hwema hwe ethyl mi hwawanikwa.
Cherechedza: kugeza ne ethyl mi kunodiwa kuti ubvise ethanol zvachose kubva muchinhu chisinganyungudike. Kana ethanol ikasabviswa zvachose ovheni isati yaoma, hazvigoneke kubvisa zvachose panguva yekuomesa ovheni.
Chinopisirwa nebeaker zvakaiswa muovheni pa105℃±2℃ kuti zviome kwemaawa maviri, zvozoendeswa kuchiomesa kuti zvitonhore kwemaminitsi makumi matatu, zvoyerwa, zvoomeswa kweawa imwe chete, zvoomeswa kuti zvitonhore kusvika huremu hwachinja husingapfuuri 0.003g. Kana huremu hukawedzera panguva yekuomeswa kweawa imwe chete, huremu hwakaderera huchaonekwa huchakunda.
Mhedzisiro yakaverengerwa
Kuchena kweHPMC hydroxypropyl methyl cellulose kwakaverengerwa sechikamu cheP, uye kukosha kwacho kwakataurwa se%
M1 — huremu hwezvinhu zvakaomeswa zvisinganyunguduke, mumagiramu (g);
M0 — Huremu hwechikamu chebvunzo, mumagiramu (g);
W0 — Hunyoro uye kugadzikana kwehuwandu hwemuenzaniso, %.
Avhareji yehuwandu hwemasvomhu hwezviyero zviviri zvakafanana inoderedzwa kusvika panhamba imwe chete yedesimali semhedzisiro yekuyera.
Pchisarudzo
Musiyano wakakwana pakati pezviyero zviviri zvakazvimiririra zvakawanikwa pasi pemamiriro ekudzokororwa hausi mukuru kupfuura 0.3%, chero bedzi kupfuura 0.3% isingapfuure 5%.
Nguva yekutumira: Kukadzi-14-2022