Hydroxypropylmethylcellulose (HPMC) shine polymer mai narkewa da ruwa wanda aka samo daga cellulose na halitta kuma ana amfani dashi sosai a masana'antu da yawa saboda ikonsa na samar da kewayon viscosities a cikin hanyoyin ruwa. HPMC tana da aikace-aikace da yawa a cikin magunguna, abinci da masana'antar kwaskwarima. Danko shine babban sifa na mafita na HPMC wanda ke shafar aikin su a cikin waɗannan aikace-aikacen.
Abubuwan da ke shafar danko:
1. Tattaunawa: Ƙaddamarwar HPMC a cikin maganin yana da alaƙa kai tsaye da danko na maganin. Yayin da maida hankali na HPMC ya karu, dankon maganin yana ƙaruwa yayin da sarƙoƙin polymer ya zama mafi haɗuwa. Duk da haka, maɗaukaki mai yawa zai iya haifar da wani m da gel-kamar bayani, wanda zai iya zama wanda ba a so ga wasu aikace-aikace.
2. Nauyin kwayoyin halitta: Nauyin kwayoyin halitta na HPMC shine maɓalli mai mahimmanci wanda ke shafar danko na maganin. Yayin da nauyin kwayoyin halitta na HPMC ya karu, dankon maganin kuma yana karuwa saboda karuwar sarƙoƙi na polymer. HPMC tare da nauyin kwayoyin mafi girma yana da tsayin sarƙoƙi, yana haifar da ƙarin bayani mai danko.
3. Zazzabi: Hakanan yanayin zafi yana shafar danko na maganin HPMC. Yayin da zafin jiki na maganin ya karu, danko na maganin yana raguwa. Rage danko ya samo asali ne saboda raguwar dakarun intermolecular tsakanin sarƙoƙi na polymer, wanda ke haifar da ƙarancin haɗuwa da ƙara yawan ruwa.
4. Ƙimar pH: Ƙimar pH na maganin kuma zai shafi danko na maganin HPMC. Ƙimar pH a waje da kewayon 5.5-8 na iya haifar da raguwa a cikin danko saboda canje-canje a cikin solubility da cajin polymer HPMC.
5. Salinity: Salinity ko ƙarfin ionic na maganin kuma yana rinjayar danko na maganin HPMC. Ƙara yawan gishirin gishiri yana tsoma baki tare da hulɗar sarkar polymer na HPMC, yana haifar da raguwa a cikin dankowar bayani.
6. Yanayin shear: Yanayin shear da aka fallasa maganin HPMC shima zai shafi dankon maganin. Yanayin shear na iya haifar da raguwa na ɗan lokaci a cikin danko, kamar lokacin hadawa ko yin famfo na bayani. Da zarar an cire yanayin shear, danko zai dawo da sauri zuwa daidaitaccen yanayi.
a ƙarshe:
Dankowar hanyoyin magance ruwa na HPMC yana shafar abubuwa daban-daban waɗanda ke buƙatar yin la'akari yayin ƙirƙirar samfurin. Tattaunawa, nauyin kwayoyin halitta, zafin jiki, pH, salinity, da yanayin shear sune mafi mahimmancin abubuwan da suka shafi danko na mafita na HPMC. Fahimtar waɗannan abubuwan na iya taimaka wa masana'antun haɓaka danko na mafita na HPMC don takamaiman aikace-aikace. Danko shine muhimmin halayen HPMC mafita kamar yadda zai iya ƙayyade aiki da kwanciyar hankali na samfuran tushen HPMC.
Lokacin aikawa: Oktoba-16-2023