Izina ry'igishinwa rya HPMC ni hydroxypropyl methylcellse. Ntabwo ari ionic kandi akenshi ikoreshwa nkumukozi ugumana amazi mumarira avanze. Nibikoresho bikoreshwa mumazi muri minisiteri.
Igikorwa cyo gukora cya HPMC ahanini ni ibicuruzwa bya EthelSaccharide bishingiye kuri AlmasCcharide byakozwe na alkalisation no guhindura parisiyo ya pamba (gukora murugo). Ntabwo ubwayo, ntacyo yitwara hamwe na ELANSHINGANWA MU BIKORWA MU BIKORWA BY'INGENZI, kandi ifite imikorere ihamye. Igiciro nacyo kiri munsi yubundi bwoko bwa elegisi ya selile, niko ikoreshwa cyane muri minisiteri yumye.
Imikorere ya HydroxyPropyl Methylcellse: Irashobora kubyimba ku mafranga nshya ivanze kugira ubushyuhe runaka kandi bukabuza gutandukana. . .
Isumbabyo hejuru ya hydroxyproppopyl methylcellse ether, imikorere myiza yo kugumana amazi. Viscosity nigipimo cyingenzi cyimikorere ya HPMC. Kugeza ubu, abakora ba HPMC bakoresha uburyo n'ibikoresho bitandukanye kugirango bapime vicosity ya HPMC. Uburyo nyamukuru ni HaAkerotovisko, hoppler, Ubublohde na Brookfield.
Kubicuruzwa bimwe, ibisubizo bya viscosity byapimwe nuburyo butandukanye buratandukanye cyane, ndetse bamwe ndetse banatandukanije kabiri. Kubwibyo, mugihe ugereranya vicosi, bigomba gukorwa hagati yuburyo bumwe bwikizamini, harimo ubushyuhe, rotor, nibindi byerekeranye nubunini bwinshi, harafunzwe. Nyuma yimiterere minini ya selile ihura namazi, ubuso ako kanya irashonga kandi ikora gel kugirango ireke ibikoresho kugirango wirinde molekile zikomeza kugenda. Rimwe na rimwe ntibishobora gutatana kimwe no gushonga ndetse na nyuma yigihe kirekire, gukora igisubizo cya flocculent cyangwa agglomeration. Bigiraho ingaruka cyane kugumana amazi ya selile, kandi kwikebana ni kimwe mubintu byo guhitamo kuri selile ether.
Ibyiza nabyo ni urutonde rwingenzi rwimikorere ya methyl selile. MC ikoreshwa mu myambaro yumye isabwa kuba ifu, hamwe namazi make, kandi igorofa nayo isaba 20% ~ 60% yubunini butari munsi ya 63um. Ibyiza bigira ingaruka ku kuntu ushoboye kwa hydroxyproppopyl methylcellse ether. Ubusanzwe mc mubisanzwe ni granular, kandi biroroshye gusezererwa mumazi adahuye, ariko igipimo cyo gusebanya kiratinda cyane, bityo ntibikwiriye gukoreshwa muri minisiteri yumye.
Mu myanda yumye, MC ikwirakwizwa mu bikoresho byo kubumya nko gukusanya, iyungurura neza na sima ihagije irashobora kwirinda methyl selile iyo kuvanga n'amazi. Iyo MC yongeweho amazi yo gushonga agglomerates, biragoye cyane gutatana no gushonga. Ubukonje buhebuje bwa MC ntabwo busesagura gusa, ahubwo bigabanya imbaraga zaho za minisiteri. Iyo ifu yumuntu wumye ikoreshwa mu gace kanini, umuvuduko urega wa minisiteri yumye yaho azagabanuka cyane, kandi imirongo izagaragara cyane, kandi imirongo izagaragara kubera ibihe bitandukanye bikiza. Kuri minisiteri yateye hamwe nububiko bwa mashini, icyifuzo cyo kunezeza kiri hejuru kubera igihe gito cyo kuvanga. Muri rusange, hejuru cyane viscosiya, ingaruka nziza zo kugumana amazi. Ariko, hejurus viscosiya hamwe nuburemere bwa molekile ya MC, kugabanuka bihuye nibyokundwa bizagira ingaruka mbi ku mbaraga nubwubatsi bwa minisiteri.
Hejuru ya virusire, uko byanze bikunze ingaruka kuri minisiteri, ariko ntabwo bigereranyije neza. Isumbuye viscosiya, ni ko bimeze cyane, ni ukuvuga mu gihe cyo kubaka, bigaragarira nko kwizirika ku gishushanyo no gushushanya cyane. Ariko ntabwo ari byiza kongera imbaraga zuburyo bwa minisiteri itose. Ni ukuvuga, mugihe cyo kubaka, imikorere yo kurwanya sag iragaragara. Ibinyuranye nibyo, bamwe mu rubyiruko no hasi ariko bahinduwe Methyl bahanganye na Methyl bafite imikorere myiza mugutezimbere imbaraga zubuntu bwa minisiteri itose.
Kugumana amazi ya HPMC nabyo bifitanye isano n'ubushyuhe bwakoreshejwe, kandi ugusuka amazi ya methyl selile bigabanuka hamwe no kwiyongera k'ubushyuhe. Ariko, muburyo bufatika bwa porogaramu, ifu yumye ikunze gukoreshwa kubushyuhe bushyushye ku bushyuhe bwo hejuru (hejuru ya dogere 40) mu mpera z'izuba mu mpeshyi no kunisha Ifu yumye minisiteri. Kugabanuka kw'igipimo cyo kugumana amazi biganisha ku byiyumvo bigaragara ko gukora imirimo no kurwanya ibihano bigira ingaruka, kandi birakomeye cyane kugirango bigabanye ingaruka z'ubushyuhe muri iyi miterere.
Ni muri urwo rwego, Methyl HydroxyAythyll Twolile Ether Inyongerali Abongeraho ubu bafatwa nk'ibanze ku iterambere ry'ikoranabuhanga. Nubwo ingano ya methyl hydroxyyethyl selile yiyongereye (formulaire yimpeshyi), ibikorwa no kurwanya ibikorwa biracyashobora kuzuza ibikenewe. Binyuze muburyo bumwe bwihariye kuri MC, nko kongera urwego rworoshye, nibindi, ingaruka zo kugumana amazi zirashobora kuguma ku bushyuhe bwo hejuru, kugirango rishobore gutanga imikorere myiza mubihe bibi.
Igipimo cya HPMC ntigomba kuba hejuru cyane, bitabaye ibyo bizongera amazi ya minisiteri, bizakomeza kuri trowel, kandi igihe cyo gutora kizaba kinini, kizagira ingaruka kubwubarirwa. Ibicuruzwa bitandukanye byimiterere Koresha HPMC hamwe nisukari zitandukanye, kandi ntukoreshe HPMC nyinshi HPMC isanzwe. Kubwibyo, nubwo hydroxy opropyl Ibicuruzwa bya methylcellsell nibyiza, birakomye iyo bakoreshejwe neza. Guhitamo HPMC iburyo ninshingano yibanze yabakozi ba laboratoire. Kugeza ubu, abacuruza benshi batitonda barumiye HPMC, kandi ubuziranenge burakennye cyane. Mugihe uhitamo selile runaka, laboratoire igomba gukora akazi keza mubushakashatsi kugirango ibone umutekano wibicuruzwa byimikorere, kandi ntukagire umururumba uhendutse kandi utera igihombo kidakenewe.
Igihe cya nyuma: Gicurasi-04-2023