suma
Cellulose ana vanayo inyaya yemvura-manyorerwo-manyorerwe kubva kune cellulose. Aya maPolymers ane zvinyorwa zvakawanda mumasango akasiyana-siyana akadai sechikafu, mishonga, cosmeticals, uye kuvaka nekuda kwezvivakwa zvavo zvakadai sekurema, gomba, uye inoumba. Chimwe chezvakanyanya kukosha zvevanhu cellulose ana vanayo vanopomedzerwa kwavo vechigaro (tg), tembiricha iyo iyo polymer inotsvedza kubva kuSol kune Gel. Ichi chivakwa chakanyanya kutsoropodza mukufunga mashandiro ema cellulose ana ana ana akasiyana-siyana application. Munyaya ino, tinokurukura tembiricha yegungwa yehydroxyprusypropyl methylcellose (HPMC), imwe yeanonyanya kushandiswa cellulose erin indasitiri.
Thermal Geation Tembiricha yeHPMC
HPMC ndeye semi-synthetic cellulose ether inoshandiswa zvakanyanya mune dzakasiyana siyana zvikumbiro nekuda kwezvivakwa zvaro zvakasarudzika. HPMC iri kunyanyisa mumvura, kuumba yakajeka viscous mhinduro pane yakaderera kutarisisa. Pakunetseka kwakanyanya, HPMC mafomu ayo ayo anokosirwa pakudziya uye kutonhora. HPLLE YEMAHARA yeHPMC ndeyemaviri yekubatanidza inosanganisira kuumbwa kwemicelles inoteverwa neakakwiridzwa nemicrogation ye micelles kuti iite gel network (Mufananidzo 1).
Iyo inopisa yekupisa yeHPMC inoenderana nezvinhu zvinoverengeka zvakadai sedanho rekutsiva Kazhinji, iyo yakakwira iyo DS uye molecular uremu hweHPMC, yakakwira iyo yekupisa yeiyo tembiricha. Kugadziriswa kweHPMC muSolution kunobatawo tg, yakakwira kusunganidzwa, yakakwira tg. Iyo pH yemhinduro zvakare inokanganisa iyo tg, ine mhinduro dze acidic zvichikonzera kuderera tg.
Iyo yekuralmal gelation yeHPMC inokonzerwa uye inogona kukanganiswa nezvakaringana zvekunze zvinhu zvakadai sekumanikidza, tembiricha, uye munyu wepfungwa. Shear inovhuna iyo gel chimiro uye ichisiya tg, uku uchiwedzera tembiricha inokonzeresa gel kuti inyunguduke uye ichidzikisa tg. Kuwedzera munyu kune mhinduro zvakare inobata tg, uye kuvapo kwezviyero zvakadai secalcium uye magnesium inowedzera tg.
Kushandisa kweTG Yakasiyana HPMC
Iyo Thermogelling maitiro eHPMC inogona kuve yakagadziridzwa kuti ishandiswe. Low tg hpmcs inoshandiswa mune zvekushandisa inoda nekukurumidza gelation, yakadai sekusanzwisisa, sosi uye soup mafomu. HPMC ine tg yakakwira inoshandiswa mune zvekushandisa inoda kunonoka kana kuti gelation yakakwana, yakadai sekushandiswa kwesystem yekuzvitakura zvinodhaka, mahwendefa ekusimudzira, uye akarwara.
Muindasitiri yechikafu, HPMC inoshandiswa seanoridza mhere, stabilizer uye ganda mumiririri. Low TG HPMC inoshandiswa mukukanda dessert mafomu ayo anoda kukurumidza glation kuti ape iyo inodiwa chimiro uye muromo. HPMC ine tg yakakwira inoshandiswa mune yakaderera-mafuta yakapararira mafambiro emafuta emafuta emafuta anodikanwa kuti adzivirire syneresis uye chengetedza zvakapararira chimiro.
Muindasitiri yechechi, HPMC inoshandiswa seyekuchinjika, kuparadzaniswa uye kwakasimbiswa mumiriri. HPMC ine yeTG yakakwira inoshandiswa mukuumbwa kwemahwendefa ekuwedzera-ekusimudzira, uko kunonoka kana kuti gelation yakafanira kuti isunungure zvinodhaka kwenguva yakareba. Low TG HPMC inoshandiswa mukuumbwa kwevaridzi vemuromo mahwendefa ekurega, ipo mukukurumidza kusimuka uye gelation zvinodiwa kuti upe muromo waunoda muromo.
mumhedziso
Iyo yekupisa yeiyo tembiricha yeHPMC chinhu chakakosha icho chinosarudza maitiro ayo mune dzakasiyana siyana application. HPMC inogona kugadzirisa iyo tg yayo kuburikidza neiyo degree rekutsiva, molecular uremu, kusunganidzwa uye ph kukosha kwemhinduro yekukodzera mashandisirwo akasiyana. HPMC ine yakaderera tg inoshandiswa kuti zvikumbiro zvinoda kukurumidza kukwenya, nepo hpmc ine tg yakakwira inoshandiswa kune zvinoshandiswa kuti zvinyoronyoro zvinoda kuti unononoka kana gwenzi refu. HPMC chinhu chose chose uye chiverengero cellulose ether ine akawanda angangoita mashandiro mumaindasitiri akasiyana siyana.
Kutumira Nguva: Aug-24-2023