Hydroxypropyl Methylcellulose (HPMC)naSelirulose ya Methyl Hydroxyethyl (MHEC)ni ebyiri muri eteri za cellulose zikoreshwa cyane zikomoka kuri cellulose karemano, polymer iboneka mu nkuta z'uturemangingo tw'ibimera. Izi mvange zihindurwa binyuze mu buryo bwa shimi kugira ngo zikore ibikoresho bigaragaza ububyimba, kubika amazi, gukora firime, no gufatana. Nubwo zisangiye imiterere imwe y'imikorere, zitandukanye mu miterere ya shimi, imiterere, ikoreshwa, n'imikorere mu bihe bitandukanye.

1. Imiterere n'imiterere y'ibinyabutabire

HPMC (Hydroxypropyl Methylcellulose)

HPMC ni eteri ya selulosi idafite ionic ikorwa binyuze mu gukorana na selulosi hamwe na methyl chloride na propylene oxide. Amatsinda ya hydroxyl (-OH) ari ku mugongo wa selulosi asimburwa igice na methoxy (-OCH₃) na hydroxypropyl (-CH₂CHOHCH₃).

MHEC (Methyl Hydroxyethyl Cellulose)

Ku rundi ruhande, MHEC ikorwa binyuze mu guhuza cellulose na ethylene oxide na methyl chloride. Ibi byongera amatsinda ya methoxy (-OCH₃) na hydroxyethyl (-CH₂CH₂OH).

Itandukaniro ry'ingenzi mu miterere:

HPMC ifite ibintu bisimbura hydroxypropyl, mu gihe MHEC irimo amatsinda ya hydroxyethyl.

Ubwoko bw'itsinda rya ether bugira ingaruka ku kunyura mu mazi, gushonga, no ku mikorere y'ubushyuhe.

Uburyo bwo Kugera ku Mutsi: HPMC na MHEC byombi biboneka mu byiciro bitandukanye bya viscosity, byagenewe gukoreshwa mu buryo butandukanye. Ariko, imiterere ya molekile igira ingaruka ku buryo viscosity yitwara mu gisubizo. HPMC ubusanzwe itanga ubushyuhe bwiza kandi ikagira viscosity ihoraho mu rugero rwa pH runini.

3. Imiterere y'imikorere

Kubika Amazi:

Ibikoresho byombi ni ibikoresho byiza byo kubika amazi, bikaba ari ingenzi cyane muri sisitemu zishingiye kuri sima n'izishingiye kuri gypsum. Ariko, muri rusange HPMC itanga uburyo bwiza bwo kubika amazi, bigatuma iba amahitamo meza mu byuma byumye bivanze, kole y'amatafari, n'ibishushanyo.

Ingaruka zo gushonga:

MHEC ikunda gutanga ubushyuhe bworoshye kandi buhamye mu bisubizo by'amazi, bigatuma iba nziza mu bikorwa aho bikenewe ko amazi atembera neza kandi agakoreshwa neza.

Imiterere ya Filime:

HPMC ikunda gukora filime zoroshye kandi zibonerana, mu gihe MHEC ikora filime zoroshye. Izi tandukaniro zigira ingaruka ku ikoreshwa ry'ibirahure byo hejuru n'ibikometse.

Gupima ubushyuhe:

HPMC inyura mu bushyuhe, igakora gel iyo ishyushye. MHEC nayo igaragaza ubushyuhe, ariko ku rugero ruto. Iyi miterere ni ingenzi cyane mu mikoreshereze y'imiti n'ibiribwa aho gel cyangwa imiterere yayo byifuzwa.

4. Porogaramu

HPMC na MHEC byombi bikoreshwa mu nganda zitandukanye. Ariko, hari imiterere y'imikorere ituma imwe ikwiriye kurusha indi mu bikorwa byihariye.

4.1 Inganda z'ubwubatsi

HPMC:

Kole y'amatafari

Plasta n'ibishushanyo bishingiye kuri sima

Ibinyabutabire byigenga

Sisitemu zo kurangiza insulation zo hanze (EIFS)

Plaster zikozwe muri Gypsum

Ibyiza mu bwubatsi:

Amazi menshi agumana

Igihe cyiza cyo gufungura mu mavuta yo gufunga

Kongera ubushobozi bwo gukora

MHEC:

Amakoti yo kwambara ku rubura

Plasta yoroheje

Kole zo ku rukuta

Ibinyabutabire byuzuye uruvange

Ibyiza mu bwubatsi:

Uburyo bworoshye bworoshye

Imiterere myiza yo gufatana

Uburyo bworoshye bwo kuvanga

4.2 Imiti

HPMC:

Ikoreshwa nk'ikintu gifunga no gutwikira firime mu binini

Sisitemu zo kugenzura irekurwa ry'imiti zigenzurwa

Ibitonyanga by'amaso n'amavuta y'amaso

MHEC:

Ntabwo ikunze gukoreshwa cyane bitewe n'imiterere yayo yo gukaraba, ariko iracyakoreshwa muri:

Imiti yo kunywa ikoreshwa mu kuvura indwara zo mu mutwe

Imiti ikoreshwa mu gushushanya

4.3 Amarangi n'amatako

MHEC:

Akenshi irangi rikoreshwa mu mazi rikundwa cyane bitewe n'uko rikoreshwa mu gukata irangi neza (gukata irangi)

Yongera ubushobozi bwo gusukura no gukoresha neza

HPMC:

Nanone ikoreshwa mu irangi, cyane cyane iyo hakenewe ubushobozi bwinshi bwo kubika amazi cyangwa imiterere ya gelation

D. Amavuta yo kwisiga n'ubuvuzi bw'umuntu ku giti cye

HPMC:

Shampoo, conditioner, n'amavuta yo kwisiga

Ikora nk'ikintu gikomeza ubukonje n'ubudahungabana

MHEC:

Isabune y'intoki n'imashini zo gukaraba umubiri

Bikunda gukoreshwa mu kunoza ubushishozi no koroshya imyandikire

4.4 Inganda z'ibiribwa

HPMC:

Yemejwe nk'inyongeramusaruro ku biribwa (E464)

Ikoreshwa mu tuvuta tw'ibikomoka ku bimera, mu bicuruzwa byo mu ifuru, no mu isosi zavanzwemo amavuta

Bifasha mu miterere no mu buryo buhamye

MHEC:

Ntabwo byemewe cyane gukoreshwa mu biribwa; ikoreshwa ryabyo ni rike.

5. Ingingo z'ibidukikije n'amabwiriza

HPMC na MHEC byombi ntibigira uburozi, birabora, kandi ntibigira ionic, bigatuma bikoreshwa mu bintu byinshi. Ariko:

HPMC yemewe cyane mu gukoresha imiti n'ibiribwa.

MHEC ikoreshwa cyane cyane mu nganda no mu bijyanye no kwisiga.

6. Ikiguzi n'uko ibintu biboneka

Muri rusange MHEC ihendutse kurusha HPMC bitewe nuko ikora byoroshye gato kandi ikaba isaba make ku masoko y’imiti n’ibiribwa. Ariko, uburyo bwagutse bwo gukoresha HPMC, cyane cyane mu nganda zigenzurwa, butuma igiciro cyayo kiri hejuru.

Mu buryo bukora neza nka kole z'amatafari cyangwa imiterere aho amazi menshi abikwa kandi agafatana, HPMC ni yo ikundwa. Mu buryo bunyuranye, kugira ngo ikoreshwe neza kandi byoroshye kuvanga, nko mu bivanze cyangwa putti zo ku rukuta, MHEC ishobora gukora neza kurushaho.

Mu giheHPMCnaMHECni ether za cellulose zisa mu buryo bw'imiti, amatsinda yazo atandukanye (hydroxypropyl muri HPMC ugereranije na hydroxyethyl muri MHEC) bitera itandukaniro rikomeye mu mikorere, cyane cyane mu bijyanye no gushyuha, kubika amazi, gukora firime, no guhuza ikoreshwa.