Hydroxypropyl methylcellulose (HPMC) ninyongeramusaruro yingenzi yimiti, ikoreshwa cyane mubice byinshi nkubwubatsi, ubuvuzi, ibiryo, no kwisiga. Ifite umubyimba mwiza, geli, emulisitiya, gukora firime, hamwe nuburinganire, kandi ifite umutekano muke kubushyuhe na pH. Gukemura HPMC nikimwe mubibazo byingenzi mugukoresha. Gusobanukirwa uburyo bukwiye bwo gusesa ni ngombwa kugirango imikorere yacyo.
1. Ibintu by'ibanze byo gusesa HPMC
Hydroxypropyl methylcellulose ni ether idafite amazi ya elegitoronike ya selile ishobora gushonga mumazi akonje cyangwa ashyushye kugirango bibe igisubizo kiboneye cyangwa cyoroshye. Gukemura kwayo kwibasirwa cyane nubushyuhe. Biroroshye gushonga mumazi akonje kandi byoroshye gukora colloid mumazi ashyushye. HPMC ifite ubushyuhe bwumuriro, ni ukuvuga ko idafite imbaraga nke mubushyuhe bwo hejuru, ariko irashobora gushonga burundu mugihe ubushyuhe bwamanutse. HPMC ifite uburemere butandukanye hamwe na viscosities, mugihe rero cyo gusesa, moderi ikwiye ya HPMC igomba guhitamo ukurikije ibicuruzwa bisabwa.
2. Uburyo bwo gusesa HPMC
Uburyo bwo gukwirakwiza amazi akonje
Uburyo bukwirakwiza amazi akonje nuburyo bukoreshwa cyane muburyo bwo gusesa HPMC kandi burakwiriye kubintu byinshi byakoreshwa. Intambwe zihariye nizi zikurikira:
Tegura amazi akonje: Suka amazi akenewe mu kintu kivanze. Ubushuhe bwamazi busanzwe busabwa kuba munsi ya 40 ° C kugirango wirinde HPMC gukora ibibyimba mubushyuhe bwinshi.
Buhoro buhoro ongeramo HPMC: Buhoro buhoro ongeramo ifu ya HPMC hanyuma ukomeze kubyutsa. Kugirango wirinde guhunika ifu, hagomba gukoreshwa umuvuduko ukwiye kugirango HPMC ishobore gukwirakwizwa mumazi.
Guhagarara no gushonga: HPMC imaze gukwirakwizwa mumazi akonje, igomba guhagarara mugihe runaka kugirango ishonga burundu. Mubisanzwe, isigara ihagaze muminota 30 kugeza kumasaha menshi, kandi igihe cyihariye kiratandukanye bitewe nicyitegererezo cya HPMC nubushyuhe bwamazi. Mugihe cyo guhagarara, HPMC izagenda ishonga buhoro buhoro kugirango ikore igisubizo kiboneye.
Amazi ashyushye mbere yo guseswa
Uburyo bwamazi ashyushye mbere yo gusesa bukwiranye na moderi zimwe za HPMC zifite ubukonje bwinshi cyangwa bigoye gushonga burundu mumazi akonje. Ubu buryo ni ukubanza kuvanga ifu ya HPMC nigice cyamazi ashyushye kugirango ukore paste, hanyuma ukayivanga namazi akonje kugirango amaherezo ubone igisubizo kimwe. Intambwe zihariye nizi zikurikira:
Gushyushya amazi: Shyushya amazi runaka kuri 80 ° C hanyuma uyasuke mubintu bivanze.
Ongeramo ifu ya HPMC: Suka ifu ya HPMC mumazi ashyushye hanyuma ubireke mugihe usuka kugirango ube uruvange rwa paste. Mu mazi ashyushye, HPMC izashonga by'agateganyo kandi ikore ibintu bimeze nka gel.
Ongeramo amazi akonje kugirango uyunguruze: Nyuma yo kuvanga paste bimaze gukonja, shyiramo buhoro buhoro amazi akonje kugirango uyunguruze kandi ukomeze kubyutsa kugeza igihe bishonge burundu mubisubizo biboneye cyangwa byoroshye.
Uburyo bwo gukwirakwiza ibinyabuzima
Rimwe na rimwe, kugirango byihutishe iseswa rya HPMC cyangwa kunoza ingaruka zo gusesa kwa progaramu zimwe zidasanzwe, umusemburo kama urashobora gukoreshwa kuvanga namazi kugirango ushonga HPMC. Kurugero, ibishishwa kama nka Ethanol na acetone birashobora gukoreshwa mugukwirakwiza HPMC mbere, hanyuma amazi arashobora kongerwamo kugirango afashe HPMC gushonga vuba. Ubu buryo bukoreshwa kenshi mugukora ibicuruzwa bimwe na bimwe bishingiye kumashanyarazi, nko gutwika no gusiga amarangi.
Uburyo bwumye bwo kuvanga
Uburyo bwo kuvanga bwumye burakwiriye umusaruro munini winganda. Ubusanzwe HPMC yabanje gukama ivanze nibindi bikoresho byifu (nka sima, gypsumu, nibindi), hanyuma amazi akongerwaho kuvanga iyo akoreshejwe. Ubu buryo bworoshya intambwe zikorwa kandi birinda ikibazo cya agglomeration mugihe HPMC yasheshwe wenyine, ariko bisaba kubyutsa bihagije nyuma yo kongeramo amazi kugirango HPMC ishobore gushonga kandi igire uruhare runini.
3. Ibintu bigira ingaruka ku iseswa rya HPMC
Ubushyuhe: Ubushobozi bwa HPMC bwumva cyane ubushyuhe. Ubushyuhe buke bufasha gukwirakwiza no gushonga mu mazi, mu gihe ubushyuhe bwo hejuru butuma HPMC ikora colloide, bikabuza gusenyuka burundu. Kubwibyo, mubisanzwe birasabwa gukoresha amazi akonje cyangwa kugenzura ubushyuhe bwamazi munsi ya 40 ° C mugihe ushonga HPMC.
Umuvuduko ukurura: Gukangura neza birashobora kwirinda neza guteranya HPMC, bityo byihuta umuvuduko. Ariko, umuvuduko ukabije wihuta urashobora kwinjiza umubare munini wibibyimba kandi bikagira ingaruka kubisubizo. Kubwibyo, mubikorwa nyabyo, umuvuduko ukwiye hamwe nibikoresho bigomba guhitamo.
Ubwiza bwamazi: Umwanda, ubukana, agaciro ka pH, nibindi mumazi bizagira ingaruka kumyuka ya HPMC. By'umwihariko, calcium na magnesium ion mu mazi akomeye birashobora kwitwara hamwe na HPMC kandi bikagira ingaruka ku gukomera kwayo. Kubwibyo, gukoresha amazi meza cyangwa amazi yoroshye bifasha kunoza imikorere ya HPMC.
Icyitegererezo cya HPMC hamwe nuburemere bwa molekuline: Ubwoko butandukanye bwa HPMC buratandukanye mumuvuduko wo gushonga, ubukonje nubushyuhe bwo gushonga. HPMC ifite uburemere buke bwa molekuline ishonga buhoro, ifite igisubizo cyinshi cyane, kandi ifata igihe kinini kugirango ishonga burundu. Guhitamo icyitegererezo cyiza cya HPMC birashobora kunoza imikorere yo gusesa kandi byujuje ibisabwa bitandukanye.
4. Ibibazo bisanzwe nibisubizo mugusenya HPMC
Ikibazo cya Agglomeration: Iyo HPMC yashongeshejwe mumazi, agglomerations irashobora kubaho mugihe ifu idatatanye. Kugira ngo wirinde iki kibazo, HPMC igomba kongerwaho buhoro buhoro mugihe cyo kuyasesa kandi ikagumishwa ku muvuduko ukwiye, mu gihe wirinze kongeramo ifu ya HPMC ku bushyuhe bwinshi.
Igisubizo kidahwanye: Niba gukurura bidahagije cyangwa igihe cyo guhagarara kidahagije, HPMC ntishobora gushonga burundu, bikavamo igisubizo kidahwanye. Muri iki gihe, igihe cyo gukangura kigomba kongerwa cyangwa igihe gihagaze kigomba kongerwa kugirango iseswa ryuzuye.
Ikibazo cyibibyimba: Kwihuta cyane cyangwa umwanda mumazi birashobora kwinjiza umubare munini wibibyimba, bigira ingaruka kumiterere yumuti. Kubera iyo mpamvu, birasabwa kugenzura umuvuduko ukurura mugihe ushonga HPMC kugirango wirinde ibibyimba byinshi, hanyuma wongereho defoamer nibiba ngombwa.
Iseswa rya HPMC ni ihuriro ryingenzi mubikorwa byayo. Kumenya neza uburyo bwo gusesa bifasha kuzamura ubwiza bwibicuruzwa no gukora neza. Ukurikije ubwoko butandukanye bwa HPMC nibisabwa, gukwirakwiza amazi akonje, amazi ashyushye mbere yo kuyasesa, gukwirakwiza ibinyabuzima cyangwa kuvanga byumye birashobora gutoranywa. Muri icyo gihe, hagomba kwitonderwa kugenzura ibintu nkubushyuhe, gukurura umuvuduko nubuziranenge bwamazi mugihe cyo gusesa kugirango wirinde ibibazo nka agglomeration, bubbles no guseswa bituzuye. Muguhindura uburyo bwo gusesa, birashobora kwemezwa ko HPMC ishobora gutanga umukino wuzuye kubyimbye no gukora firime, itanga ibisubizo byujuje ubuziranenge kubikorwa bitandukanye byinganda na buri munsi.
Igihe cyo kohereza: Nzeri-30-2024