Mwisi yimiti, hariho ibice byinshi bifite imiterere isa ariko bitandukanye mubikorwa byayo. Urugero rumwe ni hydroxypropyl methylcellulose (HPMC) na hydroxyethyl selulose (HEC). Izi nkomoko ebyiri za selile zikoreshwa cyane mu nganda zitandukanye, ariko gusobanukirwa imiterere yihariye ni ngombwa muguhitamo ibikomoka kubikorwa byihariye.
Hydroxypropyl methylcellulose, bakunze kwita HPMC, ni intungamubiri ikomoka kuri selile. Iraboneka mu kuvura selile isanzwe hamwe na oxyde ya propylene na methyl chloride, no kumenyekanisha hydroxypropyl na methyl. Ihinduka ryongera amazi ya selile kandi ikanoza muri rusange. Ku rundi ruhande, hydroxyethyl selulose (HEC) nayo ikomoka kuri selile ikomoka ku reaction ya selile naturel na okiside ya Ethylene. Kwinjiza amatsinda ya hydroxyethyl bivamo kwiyongera kwamazi no kwiyongera.
Imwe muntandukanyirizo nyamukuru hagati ya HPMC na HEC ni aho basaba. HPMC ifite uburyo bwinshi bwo gukoresha mubikorwa byubwubatsi. Ikoreshwa cyane nkibyimbye mubicuruzwa bishingiye kuri sima nkibikoresho bya tile, ibyuma byumye byumye hamwe nuburinganire. Bitewe nuburyo bugumana amazi, HPMC itezimbere imikorere, gufatana no kuramba kwibi bikoresho. Byongeye kandi, HPMC ikoreshwa nkibikoresho byo gukora firime mu gutwika no gusiga amarangi, bitanga amazi meza hamwe nuburabyo.
Ku rundi ruhande, HEC ikoreshwa cyane cyane mu kwita ku muntu no kwisiga. Ikoreshwa nkibibyimbye, emulisiferi na stabilisateur mumavuta, amavuta yo kwisiga, shampo nibindi bicuruzwa byiza. HEC yongerera ubwiza bwiyi formula, bikavamo imiterere myiza, gukwirakwira hamwe nibikorwa rusange. Ubushobozi bwayo bwo gukora firime nabwo bugira ikintu cyiza muri geles yimisatsi na mousses, bitanga gufata igihe kirekire nta gukomera.
Irindi tandukaniro rikomeye ni urwego rwijimye rwibi bintu. HPMC muri rusange ifite ubukonje burenze HEC. Itandukaniro rya viscosity rituma HEC ikwiranye na porogaramu zisaba imikorere mike yo hagati. HEC itanga ituze ryiza kandi igenzura mugutemba kwamazi, yemeza no gukwirakwiza ibintu bikora. HPMC yohejuru cyane, kurundi ruhande, ituma ikwiranye na porogaramu zisaba umubyimba uciriritse kandi muremure, nkibikoresho byubwubatsi.
Mubyongeyeho, HPMC na HEC zitandukanye muburyo bwo guhuza nibindi bikoresho byimiti. HPMC ifite ubwuzuzanye buhebuje hamwe nubwinshi bwinyongeramusaruro no kwihanganira imyunyu hamwe na surfactants, bigatuma bihinduka muburyo butandukanye. HEC, nubwo muri rusange ihuza nibintu byinshi, irashobora kugira ibibazo bimwe bihuza umunyu, acide, hamwe na surfactants. Kubwibyo, mugihe uhisemo hagati ya HPMC na HEC, ni ngombwa gusuzuma ibisabwa kugirango uhuze ibisabwa.
Muncamake, HPMC na HEC, nkibikomoka kuri selile, bifite imiterere yihariye nibisabwa. Gusobanukirwa itandukaniro riri hagati yibi bikoresho ningirakamaro muguhitamo ibice bikwiranye na progaramu runaka. HPMC ikoreshwa cyane mubikorwa byubwubatsi nkibintu byiyongera kandi bigakora firime, mugihe HEC ikoreshwa cyane mubicuruzwa byita kumuntu nkibyimbye na stabilisateur. Urebye ibisabwa bya viscosity hamwe no guhuza nibindi bikoresho, ibikomoka kuri selulose ikwiye birashobora gutoranywa, byemeza imikorere myiza nibisubizo byifuzwa mubicuruzwa byanyuma.
Urakoze kubufatanye bwawe na JINJI CHEMICAL.
Igihe cyo kohereza: Ugushyingo-14-2023