1. Natural cellulose
Zvinyorwa zvekutanga zveHpcisimba cellulose, iyo inowanzove inotorwa kubva kune huni prophop kana machira emakotoni. Aya echisikigo chirimwa machira ane huwandu hwakakura hwe β-glucose mauto zvikamu uye ndiyo yakakosha chikonzero chekugadzirwa kweHPMC. Yakanyanya-yekuchena yakanatswa cotton cellon inowanzoshandiswa mukugadzirwa kweiyo yepamusoro-mhando HPMC nekuda kweiyo yakadzika isina kukwana.
2. Sodium hydroxide (naoh)
Sodium hydroxide (naoh) inodikanwa kuti idavirire uye kuyamara kwemheremalose. Mabasa ayo makuru anosanganisira:
Kuzvimba cellulose mamorekuru uye kuwedzera maitiro ekuita;
Kuparadza iyo Crystalline nharaunda ye cellulose kuti iite nyore kuti ive nyore kuita shanduko;
Kusimudzira kutevera methylation uye hydroxprospropylation.
3. Methyl Chloride (Ch₃cl)
MetHyl Chloride (MetHyl Chloride) ndeye kiyi reagent yekugadzirisa methylation yekuita muKimacell®hpmc kugadzirwa. Inobata neAlkalized Cellulose kutsiva mamwe maHydroxyl mapoka (-OOH) ine madzinza mapoka (-Och₃) kuumbamethyl cellulose (mc), nokudaro vachivandudza iyo solubility uye yemuviri uye yemakemikari zvivakwa zve cellulose.
4. Profyleo oxide (C₃H₆O)
Propylexe oxide inoshandiswa muHydroxypruslation Reaction, iyo inogona kuunza hydroxypropropyl (-ch₂chichch₃) mapoka pane cellulose molecular cheni. Sumo yeHydroxyprupyl inogona:
Kuwedzera kusimudzira iyo solubility yemvura yeHPMC;
Kugadzirisa iyo visikopa uye rateological zvivakwa zvemhinduro yayo;
Kuvandudza kugadzikana kwayo kune dzakasiyana tembiricha.
5. Solvent (mvura kana organic solvent)
Mvura kana organic solvent (methropanol, methanol, etc.) inoshandiswa seyakaitwa svikiro mukugadzira iyo yekugadzira yunifomu yekusanganisa uye maitiro ekuita. Uye zvakare, mamwe mashiromita anoshandiswa kubvisa zvisina kufanira ne-zvigadzirwa muiyo inotevera filtation yekushambadzira uye yekushambidza yekushambadzira kuti ive nechokwadi chechigadzirwa chechigadzirwa.
6. Acidic kana alkaline catalyst
Kuti ugadzirise mamiriro ekuita uye kugadzirisa iyo yekuwedzera kugona, acidic kana alkaline catalysts yakadai sodius
7. Zvimwe zvezvinhu zvoumbowo zvigadzirwa
Vamwe vanosimbisa, vanorambidza kana mamwe makemikari anowedzera anogona kushandiswa mukugadzira maitiro ekuvandudza mhando yeHPMC, simbisa kugadzikana, uye kudzora zvimiro zvemuviri uye zvemakemikari.
Kimicell®hpmc inonyanya kugadzirwa neAlkalization, methylation uye hydroxyprusproproproproplation yemusango cellulose.Zvigadzirwa zvaro zvekushandisa zvinosanganisira:
Cellal Cellulose (inonyanya kutorwa kubva kune huni durp kana yakanatswa machira)
Sodium Hydroxide (Naoh) (yeAlkalization)
Methyl chloride (ch₃cl) (for methylation)
Propyonexo oxide (C₃H₆O) (yeHydroxyprupropylation)
Mvura kana organic solvent (yekuita uye yekugeza)
CatalySts uye stabilizers (yekufungidzira maitiro)
HPMC inozoshandiswa zvakanyanya mumaindasitiri mazhinji senge mushonga, kuvaka, chikafu, uye hukukadzi nekuda kwekunaka kwayo kwemvura solubility, kugona kwekugadzirisa uye kugona.
Kutumira Nguva: Kukadzi-11-2025