1. An kasu HPMC zuwa nau'in take-take da nau'in watsawa mai sauri
Nau'in watsawa mai sauri na HPMC an haɗa shi da harafin S, kuma dole ne a ƙara glioxal yayin aikin samarwa.
Nau'in nan take na HPMC baya ƙara kowane haruffa, kamar "100000″" yana nufin "100000 viscosity fast dispersion type HPMC".
2. Tare da ko ba tare da S, halaye sun bambanta
Saurin tarwatsa HPMC yana watsewa da sauri idan ya ci karo da ruwan sanyi ya bace cikin ruwa. A wannan lokacin, ruwan ba shi da danko, saboda HPMC kawai ana tarwatsewa cikin ruwa ba tare da narkar da gaske ba. Bayan kamar minti biyu, dankowar ruwan a hankali yana ƙaruwa, yana samar da haske mai ɗanɗano mai ƙaƙƙarfan colloid.
Ana iya tarwatsa HPMC nan take cikin ruwan zafi kimanin 70°C. Lokacin da zafin jiki ya faɗi zuwa takamaiman zafin jiki, danƙon zai bayyana a hankali har sai an sami colloid mai ɗanɗano mai haske.
3. Tare da ko ba tare da S, manufar ta bambanta
Ana iya amfani da HPMC nan take a cikin foda da turmi kawai. A cikin manne ruwa, fenti da samfuran wankewa, za a sami abin haɗawa kuma ba za a iya amfani da su ba.
HPMC da aka tarwatsa da sauri yana da aikace-aikace iri-iri kuma ana iya amfani dashi a cikin foda, turmi, manne ruwa, fenti, da kayan wankewa ba tare da wata matsala ba.
Hanyar warwarewa
1. Ɗauki adadin ruwan zafi da ake buƙata, saka shi a cikin akwati da zafi sama da 80 ° C, kuma a hankali ƙara wannan samfurin a ƙarƙashin motsin hankali. Selulose yana yawo a saman ruwa da farko, amma a hankali an tarwatsa shi don samar da slurry iri ɗaya. An kwantar da maganin yayin motsawa.
2. A madadin, zafi 1/3 ko 2/3 na ruwan zafi zuwa sama da 85 ° C, ƙara cellulose don samun ruwan zafi mai zafi, sa'an nan kuma ƙara sauran adadin ruwan sanyi, ci gaba da motsawa, da kwantar da sakamakon da aka samu.
3. A raga na cellulose ne in mun gwada da lafiya, kuma yana wanzu a matsayin mutum kananan barbashi a ko'ina zuga foda, kuma shi narke da sauri idan ya hadu da ruwa don samar da danko da ake bukata.
4. Sannu a hankali kuma a hankali ƙara cellulose a dakin da zafin jiki, yana motsawa har sai an kafa bayani mai haske.
Wadanne abubuwa ne ke shafar riƙewar ruwa na hydroxypropyl methylcellulose?
Riƙewar ruwa na hydroxypropyl methylcellulose samfurin HPMC da kansa yana shafar abubuwa masu zuwa:
1. Uniformity na cellulose ether HPMC
HPMC da aka mayar da martani akai-akai, metoxyl da hydroxypropoxyl ana rarraba su daidai gwargwado, kuma yawan riƙe ruwa yana da yawa.
2. Thermal gelation zafin jiki na cellulose ether HPMC
Mafi girman zafin jiki na thermal gel, mafi girman adadin riƙewar ruwa; in ba haka ba, ƙananan yawan ajiyar ruwa.
3. Cellulose ether HPMC danko
Lokacin da danko na HPMC ya karu, yawan ajiyar ruwa kuma yana ƙaruwa; lokacin da danko ya kai wani matakin, haɓakar yawan riƙe ruwa yakan zama lebur.
Ƙara adadin cellulose ether HPMC
Mafi girman adadin cellulose ether HPMC da aka kara, mafi girman yawan adadin ruwa kuma mafi kyawun tasirin ruwa.
A cikin kewayon 0.25-0.6% ƙari, yawan riƙewar ruwa yana ƙaruwa da sauri tare da karuwar adadin adadin; lokacin da adadin adadin ya ƙara ƙaruwa, haɓakar haɓakar yanayin riƙe ruwa yana raguwa.
Lokacin aikawa: Nuwamba-17-2022