Hydroxypropyll methylcellulose (hpmc) ndi polymer yogwiritsidwa ntchito poyipitsirana, zodzoladzola, zinthu zina, ndi ntchito zosiyanasiyana zamakampani. Amagwiriridwa ntchito kwambiri chifukwa cha kusakhulupirika kwake, osadandaula, komanso kuthekera kosintha za njira zothetsera vutoli. Komabe, ndikofunikira kumvetsetsa momwe mungasule HPMC moyenera kuti igwiritse ntchito malo ake.
Madzi: HPMC imasungunuka kwambiri m'madzi, ndikupangitsa kuti ikhale chisankho chokonda kwambiri pamapulogalamu ambiri. Komabe, kuchuluka kwa anthu kulengedwa kumatha kusiyanasiyana malinga ndi zinthu monga kutentha, Ph, ndi kalasi ya HPMC yomwe imagwiritsidwa ntchito.
Ordontal Ordont: Mankhwala osiyanasiyana osungunuka amatha kusungunula hpmc kupita kuzinthu zosiyanasiyana. Zolemba zina zodziwika bwino zimaphatikizapo:
Mowa: Isopropanol (IPA), Ethanol, Methanol, etc. Mowa amenewa nthawi zambiri amagwiritsidwa ntchito mu mankhwala opangira mankhwala ndipo amatha kusungunula bwino HPMC.
Acetone: acetone ndi zosungunulira mwamphamvu zomwe zitha kusungunula bwino hpmc mokwanira.
Ethyl acetate: Ndi njira ina yosungunuka yomwe imatha kupasulira HPMC moyenera.
Chloroform: chloroform ndi zosungunulira kwambiri ndipo ziyenera kugwiritsidwa ntchito mosamala chifukwa cha kuopsa kwake.
Dimethyl Suluxide (DMSO): DMSO ndi por por solventic yomwe imatha kusungunula zinthu zingapo, kuphatikizapo hpmc.
Propylene Glycol (PG): PG nthawi zambiri imagwiritsidwa ntchito ngati co-solvent mu mankhwala opanga mankhwala. Imatha kusungunula hpmc moyenera ndipo nthawi zambiri imagwiritsidwa ntchito molumikizana ndi madzi kapena zina zosungunulira.
Glycerin: Glycerin, omwe amadziwikanso kuti glycerol, ndi zosungunulira zofanana mu mankhwala opangira mankhwala komanso zodzoladzola. Nthawi zambiri imagwiritsidwa ntchito kuphatikiza ndi madzi kuti isungunuke hpmc.
Polyethylene glycol (msomali): Peg ndi polymer ndi kusungunuka bwino kwambiri m'madzi ndi ambiri osungunulira. Itha kugwiritsidwa ntchito kusungunula hpmc ndipo nthawi zambiri amagwiritsidwa ntchito pomasulidwa.
Ourfactonts ena amatha kuthandiza kusungunuka kwa HPMC mwa kuchepetsa kunyowa komanso kukonza kunyowa. Zitsanzo zikuphatikiza pakati pa 80, sodium Lauryl sulfate (sls), ndi polysorbate 80.
Macitil acids kapena zitsulo: Ngakhale osagwiritsidwa ntchito chifukwa cha nkhawa komanso kuwonongeka kwa acid, ma acid (mwachitsanzo, sodium hydroxide) amatha kusungunula hpmc moyenera. Komabe, Ph zinthu zodziwika bwino zimatha kuwonongeka kwa polymer.
Othandizira: Zogulitsa zina ngati cyclodenrins zimatha kupanga matomi ophatikizika ndi HPMC, pothandizira kuti zisungunuke ndikulimbikitsa kusungunuka kwake.
Kutentha kwakukulu: Nthawi zambiri, kutentha kwambiri kumalimbikitsa chikhumbo cha HPMC m'madzi ngati madzi. Komabe, kutentha kwambiri kumatha kunyoza polima, kotero ndikofunikira kugwira ntchito motetezeka.
Makina Kukakamizidwa: Kusunthika kapena kusakaniza kumatha kuthandizira kusungunuka kwa HPMC powonjezera kulumikizana pakati pa polymer.
Kukula kwa tinthu: Ufa wowoneka bwino udzasungunuka mosavuta kuposa tinthu tambiri chifukwa chowonjezeka.
Ndikofunikira kudziwa kuti kusankha kwa minofu ndi kuwonongeka kwa chilengedwe kumadalira pulogalamu inayake komanso yofunikira yomaliza. Kugwirizana ndi Zosakaniza zina, malingaliro achitetezo, ndi zofunikira zowongolera zimathandiziranso kusankha njira ya ma sol solcond. Kuphatikiza apo, ndikofunikira kuchititsa maphunziro a mayanjano komanso kuyesedwa kokhazikika kuonetsetsa kuti kusinthika kosasinthika sikukhudzanso mtundu kapena ntchito yomaliza.
Nthawi Yolemba: Mar-22-2024