HydroxyPropyl methylcellose (Inn Zita: Hypromellose), Hynpromelloselse (hydroxypromellose (yakapfupitswa se HPMC), yakasiyana-siyana nononic cellulose yakasanganiswa. Icho chiSynthetic, isingashande, viscoelastic polymer inowanzo shandiswa seyakajairwa muOphthalmology, kana seyenzizi kana kuti yakajeka muzvivakwa zvemuromo zvekutengesa.
Sezvinoita chikafu chekudya, hypromeltose chinogona kutamba zvinotevera mabasa: emulsifier, thickener, kumhanyisa mumiririri uye kutsiva mhuka glatin. Code yayo (e-kodhi) muCodex Agimentarius ndeye e464.
Makemikari Zvivakwa:
Chigadzirwa chakapera Iyo chiyero cheti yeiyo nzira yekuenda kuHydroxyPropropyl zvemukati zvechigadzirwa chakapedzwa chakasiyana, uye visikoka zvakasiyana, saka zvinova akasiyana siyana akasiyana nemaitiro akasiyana. Iyo ine maitiro ekunyudzwa mumvura inotonhora uye kuisirwa mumvura inopisa yakafanana ne methyl cellalose, uye iyo solubility mune organic soles inodarika yemvura. Inogona kunyungudutswa muAthanol methanol, uye inogona zvakare kunyungudutswa, uye inogona zvakare kuderedzwa hydrocarbons yakadai saDichloro, trichloro, uye organic solics yakadai seacetone, isopropanol, uye diacetone doro. Kana ikanyungudika mumvura, ichasanganisa nemamorekuru emvura kuti aumbe colloid. Iyo yakagadzikana kune acid naAlkali, uye haina kukanganiswa muhuwandu hwePH = 2 ~ 12. HyproMellose, kunyangwe isiri-ine chepfu, inopisa uye inobata nechisimba ne oxidizing vamiririri.
Iyo viscosity yeHPMC Zvigadzirwa inowedzera nekuwedzera kwekuwedzera uye kuremerwa kwemanyorerwe, uye kana tembiricha ichisimuka, viscosity yayo inotanga kuderera. Kana zvasvika kune imwe tembiricha, iyo visikopa yakangoerekana yasimuka uye gelation inoitika. kureba kwe. Yayo yemvura mhinduro yakagadzikana pamhepo tembiricha, kunze kwekuti inogona kusvibiswa ne enzymes, uye zvikwangwani zvaro hazvina kushatisa. Iyo ine yakakosha yekudyara emagetsi emagetsi emagetsi, yakanaka firimu-inogadzira nzvimbo uye nzvimbo yemusoro.
Kugadzira:
Mushure mekunge mherzari ibatwe naAlkali, iyo Alkoxial anion yakagadzirwa neiyo defrotention yeiyo hydroxyl boka rinogona kuwedzera Proptylone oxtratexpropropropropropropropropropropropropropropropropyl cellylose ether; Inogona zvakare kuregeredza methyl chloride kuti igadzire methyl cellelose ether. Hydroxypruppropyl methylcellose inogadzirwa apo vaviri vaviri vanoitwa panguva imwe chete.
Uchishandisa:
Iko kushandiswa kwehydroxyropropyl methylcellose kwakafanana neyemamwe ma cellulose ana vana. Iyo inonyanya kushandiswa seinoparadzira, kumhanyisa mumiririri, kukwira, emulsifier, stabilizer uye inonamatira muminda dzakasiyana siyana. Iyo yakakwirira kune mamwe ma cellulose ana vana maererano nekunyora, kupararira, kujeka uye enzyme kuramba.
Muchikafu uye indasitiri yemishonga, inoshandiswa seyakawedzera. Izvo zvinoshandiswa sekunamatira, thickener, kuparadzira, kwemanzwi, stabilizer uye emulsifier. Iyo haina utu, hapana kukosha kwehutano, uye hapana shanduko ye metabolic.
Mukuwedzera, HPMC ine zvikumbiro mu synthetic resin polmeration, cermakemical, ceramics, mapepa, ganda, zvizhindheni, zvekuvakira, zvekuvaka, zvekuvaka uye mapikicha ekudhinda.
Kutumira Nguva: Mar-15-2023