Methyl Hydroxyethyl Cellulose (MHEC) ni selile isanzwe. Iraboneka muri etherification ya selile kandi ikoreshwa cyane mubikorwa byinshi nkubwubatsi, imiti, amavuta yo kwisiga, nibiribwa. MHEC ifite amazi meza yo gukama, kubyimba, guhagarikwa, no guhuza ibintu, kandi ningirakamaro cyane yinyongera.
1. Imiterere yimiti no kuyitegura
1.1 Imiterere yimiti
MHEC iboneka methylation igice na hydroxyethylation ya selile. Imiterere yimiti ikorwa cyane cyane no gusimbuza itsinda rya hydroxyl kumurongo wa selile ya selile na methyl (-CH₃) na hydroxyethyl (-CH₂CH₂OH). Imiterere yimiterere isanzwe igaragazwa nk:
Akagari - �� - ����3 + Akagari - �� - ����2����2����Guhamagara - O - CH 3 + Akagari - O - CH 2CH 2OH
Ingirabuzimafatizo igereranya selile ya selile. Urwego rwo gusimbuza methyl na hydroxyethyl amatsinda bigira ingaruka kumiterere ya MHEC, nko gukemura amazi no kwiyegeranya.
1.2 Gahunda yo kwitegura
Gutegura MHEC bikubiyemo ahanini intambwe zikurikira:
Etherification reaction: Ukoresheje selile nkibikoresho fatizo, ubanza kuvurwa numuti wa alkaline (nka sodium hydroxide) kugirango ukore amatsinda ya hydroxyl muri selile. Noneho methanol na okiside ya Ethylene byongeweho kugirango ikore reaction ya etherification kugirango amatsinda ya hydroxyl kuri selile asimburwe na methyl na hydroxyethyl.
Kutabogama no gukaraba: Nyuma yo gukora reaction irangiye, alkali irenze urugero ikurwaho na reaction yo kutabogama kwa aside, kandi ibicuruzwa biva mu mazi byogejwe kenshi namazi kugirango bikuremo ibicuruzwa nibikoresho bidakorewe.
Kuma no kumenagura: Ihagarikwa rya MHEC ryogejwe ryumishijwe kugirango ubone ifu ya MHEC, hanyuma rijanjagurwa kugirango ubone ubwiza bukenewe.
2. Imiterere yumubiri nubumara
2.1 Kugaragara no kwikemurira ibibazo
MHEC ni ifu yera cyangwa yoroheje yumuhondo byoroshye gushonga mumazi akonje kandi ashyushye, ariko ikagira imbaraga nke mumashanyarazi. Gukemura kwayo bifitanye isano na pH agaciro k'igisubizo, kandi yerekana gukemura neza muri neutre kugeza acide nkeya.
2.2 Kubyimba no guhagarikwa
MHEC irashobora kongera cyane ubwiza bwumuti nyuma yo gushonga mumazi, bityo ikoreshwa cyane nkibyimbye. Muri icyo gihe, MHEC ifite kandi ihagarikwa ryiza no gutatanya, bishobora gukumira imyanda, bigatuma ikoreshwa nkibintu bihagarika imyenda hamwe nibikoresho byubaka.
2.3 Guhagarara no guhuza
MHEC ifite aside nziza na alkali ituje kandi irashobora kugumana ituze ryayo mugari pH. Byongeye kandi, MHEC ifite kwihanganira neza electrolytite, ituma ikora neza muri sisitemu nyinshi yimiti.
3. Imirima yo gusaba
3.1 Inganda zubaka
Mubikorwa byubwubatsi, MHEC ikoreshwa cyane nkibikoresho byongera amazi bigumana ibikoresho nka minisiteri, putty, na gypsumu. MHEC irashobora kunoza neza imikorere yimikorere yibikoresho byubwubatsi, ikongeraho gufatira hamwe no kurwanya imiti igabanuka mugihe cyubwubatsi, ikongerera igihe cyo gufungura, kandi icyarimwe igateza imbere gufata neza ibikoresho kugirango hirindwe kumeneka no kugabanya imbaraga ziterwa no gutakaza amazi byihuse.
3.2 Amavuta yo kwisiga
MHEC ikoreshwa nka emulisiferi, ikabyimbye, hamwe na stabilisateur mu kwisiga. Irashobora kwisiga kwisiga neza na rheologiya, kongera ituze no gukoresha uburambe bwibicuruzwa. Kurugero, mubicuruzwa nkamavuta yo kwisiga, amavuta, na shampo, MHEC irashobora gukumira neza ibyiciro n’imvura kandi bikongerera ubwiza bwibicuruzwa.
3.3 Inganda zimiti
Mu nganda zimiti, MHEC ikoreshwa nkumuhuza, uhoraho-urekura, hamwe nuguhagarika ibinini. Irashobora kunoza ubukana no gusenya ibinini kandi ikarekura neza ibiyobyabwenge. Byongeye kandi, MHEC ikoreshwa kandi mu miti yo guhagarika kugirango ifashe ibintu bikora gutatana neza no kuzamura ituze hamwe na bioavailable yibiyobyabwenge.
3.4 Inganda zikora ibiribwa
Mu nganda z’ibiribwa, MHEC ikoreshwa cyane cyane mubyimbye kandi ikomeza, kandi ikwiranye n ibiribwa bitandukanye, nkibikomoka ku mata, amasosi, ibiryo, nibindi. ibiryo.
4. Kurengera ibidukikije n'umutekano
4.1 Imikorere y'ibidukikije
MHEC ifite ibinyabuzima byiza kandi nta mwanda ugaragara ku bidukikije. Kubera ko ibyingenzi byingenzi ari selile n'ibiyikomokaho, MHEC irashobora kwangirika buhoro buhoro mubintu bitagira ingaruka mubidukikije kandi ntibishobora kwangiza igihe kirekire kubutaka n’amazi.
4.2 Umutekano
MHEC ifite umutekano mwinshi kandi ntabwo ari uburozi kandi ntacyo byangiza umubiri wumuntu. Iyo ikoreshejwe mu kwisiga no mu nganda z’ibiribwa, igomba kubahiriza amahame n’umutekano bijyanye n’umutekano kugira ngo ibikubiye muri MHEC mu bicuruzwa biri mu rwego rwagenwe. Mugihe cyo kuyikoresha, ugomba kwitondera kwirinda guhumeka umukungugu mwinshi kugirango wirinde guhumeka.
5. Iterambere ry'ejo hazaza
5.1 Kunoza imikorere
Bumwe mu buyobozi bw'ejo hazaza ubushakashatsi bwa MHEC ni ugukomeza kunoza imikorere yabwo mugutezimbere inzira ya synthesis hamwe nigishushanyo mbonera. Kurugero, mukongera urwego rwo gusimbuza no guhuza imiterere ya molekile, MHEC irashobora kugira imikorere myiza mugihe cyihariye cyo gukoresha, nko kurwanya ubushyuhe bwinshi, aside na alkali irwanya, nibindi.
5.2 Kwagura porogaramu
Hamwe niterambere rihoraho ryibikoresho bishya nibikorwa bishya, ikibanza cyo gusaba cya MHEC giteganijwe kwaguka kurushaho. Kurugero, mubijyanye ningufu nshya nibikoresho bishya, MHEC, nkinyongera ikora, irashobora kugira uruhare runini.
5.3 Kurengera ibidukikije no kuramba
Hamwe nogutezimbere ubumenyi bwibidukikije, umusaruro nogukoresha MHEC nabyo bizatera imbere muburyo bwangiza ibidukikije kandi burambye. Ubushakashatsi bw'ejo hazaza bushobora kwibanda ku kugabanya imyuka ihumanya ikirere mu musaruro, kunoza ibinyabuzima byangiza ibidukikije, no guteza imbere umusaruro w’icyatsi kibisi.
Methyl hydroxyethyl selulose (MHEC), nka ether ya selile ikora cyane, ifite ibyifuzo byinshi kandi byiterambere. Mu bushakashatsi bwimbitse ku miterere y’imiti no kunoza ikoranabuhanga rikoreshwa, MHEC izagira uruhare runini mu nganda zitandukanye kandi igire uruhare mu kuzamura imikorere y’ibidukikije no kurengera ibidukikije. Mugihe kizaza cyibikoresho siyanse nubuhanga, ikoreshwa rya MHEC rizazana udushya twinshi niterambere.
Igihe cyo kohereza: Jun-21-2024