Menene bambanci tsakaninhydroxypropyl methylcellulose(HPMC) tare da ko ba tare da S ba?
1. An raba HPMC zuwa nau'in nan take da nau'in watsawa mai sauri
An ƙara nau'in watsawa mai sauri na HPMC tare da harafin S. A lokacin aikin samarwa, ya kamata a ƙara glyoxal.
Nau'in HPMC nan take ba ya ƙara wani haruffa, kamar "100000" shine "nau'in watsawa mai sauri na HPMC 100000".
2. Da S ko ba tare da shi ba, halayen sun bambanta
HPMC mai watsewa cikin sauri yana warwatse cikin ruwan sanyi kuma yana ɓacewa cikin ruwa. A wannan lokacin, ruwan ba shi da danko, domin HPMC yana warwatse ne kawai a cikin ruwa, kuma babu wani narkewa na gaske. Bayan kimanin mintuna biyu, dankowar ruwan yana ƙaruwa a hankali, yana samar da ruwa mai mannewa mai haske. Colloid mai kauri.
Nan take HPMC zai iya warwatsewa cikin sauri a cikin ruwan zafi a kusan digiri 70 na Celsius. Lokacin da zafin ya faɗi zuwa wani zafin jiki, danko yana bayyana a hankali har sai an sami colloid mai haske.
3. Da S ko ba tare da shi ba, manufar ta bambanta
Ana iya amfani da HPMC nan take a cikin foda da turmi kawai. A cikin manne na ruwa, shafa da kayan tsaftacewa, haɗuwa za ta faru kuma ba za a iya amfani da ita ba.
Ana iya amfani da HPMC cikin sauri a cikin foda mai kauri, turmi, manne mai ruwa, fenti, da kayan wanke-wanke ba tare da wata matsala ba.
Hanyar narkewa
1. A ɗauki ruwan zafi da ake buƙata, a saka a cikin akwati a dumama shi zuwa sama da 80°C, sannan a zuba wannan samfurin a hankali a hankali a hankali. Cellulose ɗin yana shawagi a kan ruwan da farko, amma a hankali ana watsa shi don ya zama sinadari iri ɗaya. A sanyaya maganin tare da juyawa.
2. Ko kuma a dumama 1/3 ko 2/3 na ruwan zafi zuwa sama da 85°C, a zuba cellulose don samun ruwan zafi, sannan a zuba sauran ruwan sanyi, a ci gaba da juyawa, sannan a sanyaya hadin da ya haifar.
3. Cellulose yana da adadi mai kyau na raga, kuma yana wanzuwa a matsayin ƙaramin ƙwayar cuta guda ɗaya a cikin foda da aka haɗa iri ɗaya, kuma yana narkewa da sauri lokacin da ya haɗu da ruwa don samar da ɗanɗanon da ake buƙata.
4. A zuba cellulose a hankali a daidai lokacin da ake da zafin ɗaki, sannan a ci gaba da juyawa yayin da ake ƙarawa har sai an sami mafita mai haske.
Waɗanne abubuwa ne ke shafar riƙe ruwa na hydroxypropyl methylcellulose?
Rike ruwa na samfurin hydroxypropyl methylcellulose HPMC da kansa yakan faru ne sakamakon waɗannan abubuwan:
1. Haɗuwa tsakanin ƙwayoyin cellulose ether HPMC
HPMC mai amsawa iri ɗaya yana da rarraba iri ɗaya na ƙungiyoyin methoxy da hydroxypropoxy da kuma riƙe ruwa mai yawa.
2. Zafin gel na thermal na Cellulose ether HPMC
Mafi girman zafin gel ɗin zafi, haka nan yawan riƙe ruwa; in ba haka ba, ƙarancin riƙe ruwa.
3. Cellulose ether HPMC danko
Idan danko na HPMC ya ƙaru, adadin riƙe ruwa shima yana ƙaruwa; idan danko ya kai wani matsayi, ƙaruwar adadin riƙe ruwa yakan yi laushi.
Adadin ƙarin Cellulose ether HPMC
Da girman adadin cellulose ether HPMC da aka ƙara, mafi girman ƙimar riƙe ruwa kuma mafi kyawun tasirin riƙe ruwa.
A cikin kewayon 0.25-0.6%, yawan riƙe ruwa yana ƙaruwa da sauri tare da ƙaruwar adadin ƙari; lokacin da adadin ƙari ya ƙara ƙaruwa, yanayin ƙaruwar riƙe ruwa yana raguwa.
Lokacin Saƙo: Oktoba-17-2022