1.HPMCan raba shi zuwa nau'in nan take da nau'in watsawa mai sauri.
An ƙara nau'in watsawa mai sauri na HPMC tare da harafin S, kuma dole ne a ƙara glyoxal yayin aikin samarwa.
Nau'in HPMC nan take ba ya ƙara wasu haruffa, kamar "100000" yana nufin "danko 100000".
2. Da S ko ba tare da shi ba, halayen sun bambanta
HPMC mai watsewa cikin sauri yana warwatse da sauri idan ya haɗu da ruwan sanyi ya ɓace cikin ruwa. A wannan lokacin, ruwan ba shi da ɗanko, domin HPMC yana warwatse ne kawai a cikin ruwa ba tare da narkewa ta gaske ba. Bayan kimanin mintuna biyu, ɗanko na ruwan yana ƙaruwa a hankali, yana samar da ɗanko mai haske. Colloid mai kauri.
Ana iya watsa HPMC nan take cikin ruwan zafi da sauri a kusan digiri 70 na Celsius. Lokacin da zafin ya faɗi zuwa wani zafin jiki, danko zai bayyana a hankali har sai an samar da 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 man shafawa mai ruwa, fenti da kayayyakin wanke-wanke, za a sami wani abu na rukuni kuma ba za a iya amfani da shi ba.
An warwatse cikin sauriHPMCyana da nau'ikan aikace-aikace iri-iri kuma ana iya amfani da shi a cikin foda na putty, turmi, manne mai ruwa, fenti, da kayayyakin wanke-wanke ba tare da wata matsala ba.
4. Hanyar narkewa
4-1. A ɗauki ruwan zafi da ake buƙata, a saka a cikin akwati a dumama shi zuwa sama da 80°C, sannan a hankali a zuba wannan samfurin a hankali a hankali. Cellulose ɗin yana shawagi a saman ruwa da farko, amma a hankali ana watsa shi don ya zama sinadari iri ɗaya. An sanyaya ruwan yayin da ake juyawa.
4-2. A madadin haka, 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.
4-3. Ramin cellulose yana da kyau sosai, kuma yana wanzuwa a matsayin ƙananan ƙwayoyin cuta daban-daban a cikin foda da aka gauraya daidai gwargwado, kuma yana narkewa da sauri lokacin da ya haɗu da ruwa don samar da ɗanɗanon da ake buƙata.
4-4. A hankali a zuba cellulose a zafin ɗaki, sannan a ci gaba da juyawa har sai an sami ruwan da ya yi haske.
5. Waɗanne abubuwa ne ke shafar riƙe ruwa na hydroxypropyl methyl cellulose?
5-1. Haɗuwa tsakanin ƙwayoyin cellulose ether HPMC
Ana rarraba HPMC, methoxyl da hydroxypropoxyl daidai gwargwado, kuma yawan riƙe ruwa yana da yawa.
5-2. 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.
5-3. Cellulose Ether HPMC Danko
Idan danko na HPMC ya ƙaru, ƙimar riƙe ruwa ma tana ƙaruwa; lokacin da danko ya kai wani matsayi, ƙaruwar ƙimar riƙe ruwa yakan yi laushi.
6. Ƙarin adadin cellulose ether HPMC
Mafi girman adadin cellulose etherHPMCBugu da ƙari, mafi girman ƙimar riƙe ruwa kuma mafi kyawun tasirin riƙe ruwa.
A cikin kewayon 0.25-0.6%, yawan riƙe ruwa ya ƙaru da sauri tare da ƙaruwar adadin ƙari; lokacin da adadin ƙari ya ƙaru, yanayin ƙaruwar yawan riƙe ruwa ya ragu.
Lokacin Saƙo: Afrilu-26-2024