HPMC (Hydroxypropyl methylcelropyl methyllolulose) abu ne mai narkewa mai ruwa mai narkewa sosai a cikin filayen ginin, abinci da sunadarai na yau da kullun. Yana da kyau thickening, emulsification, fim-foring, kariya mai kariya da sauran kaddarorin. A cikin tsarin emulsion, HPMC na iya sarrafa danko na emulsion a hanyoyi daban-daban.
1. Tsarin kwayoyin na hpmc
Maganin HPMC shine yafi ƙarfin nauyin kwayar halitta da kuma yanayin canzawa. Babban nauyin kwayoyin, mafi girman danko na mafita; da kuma matsayin canji (shi ne, digiri na musanya na hydroxypropyl da metoxy kungiyoyi) yana shafar ƙididdigar kayan gani da kuma danko na HPMC. Musamman, mafi girman digiri na musanya, mafi kyawun maganin ruwa na HPMC, kuma amsar tana ƙara yawan vicicla. Masu sana'ai suna ba da samfuran HPMC tare da ma'aunin kwayoyin halitta daban-daban da digiri na sauƙi don biyan bukatun aikace-aikace daban-daban.
2. Yi amfani da maida hankali
A maida hankali ne na HPMC a cikin maganin ruwa mai ruwa yana daya daga cikin mahimman abubuwan da ke shafar danko. Gabaɗaya magana, mafi girma taro na HPMC, mafi girma danko na mafita. Koyaya, danko daban-daban nau'ikan HPMC a daidai maida hankali na iya bambanta da muhimmanci. Sabili da haka, a aikace-aikace na aiki, ya zama dole a zaɓi maida hankali ne na HPMC bayani gwargwadon takamaiman bukatun danko. Misali, a cikin aikace-aikacen gine-gine, a maida hankali kan HPMC yawanci ana sarrafa tsakanin 0.1% da 1% don samar da danko mai dacewa da aikin gini.
3. Hanyar rushewa
Tsarin rushewar HPMC shima yana da tasiri mai mahimmanci akan danko na ƙarshe. HPMC mai sauki ne a watsa shi a cikin ruwan sanyi, amma yawan rushewa yana da jinkirin; Yana narke cikin da sauri a cikin ruwan zafi, amma yana da sauƙi a iya yin hankali. Don kauce wa Agglomeration, wata hanyar da za a iya amfani da hanyar sanarwa ta hankali, wato, a farkon sannu a hankali ƙara hpmc zuwa ruwan sanyi don watsa shi, sai zafi da dama har sai an narkar da su gaba ɗaya. Bugu da kari, hpmc kuma za a iya tsara shi tare da wasu bushewar powders sannan sannan aka kara zuwa ruwa don narke da kuma kwanciyar hankali.
4. Zazzabi
Zazzabi yana da tasiri mai mahimmanci akan danko na mafita na HPMC. Gabaɗaya, danko na Magtal bayani yana raguwa kamar yadda zafin jiki ya karu. Wannan saboda haushi zafin jiki zai raunana haɗin hydrogen tsakanin kwayoyin slippular slide sau da sauƙi, don haka rage dankan mafi sauƙi. Sabili da haka, a aikace-aikace na buƙatar babban danko, ana amfani da mafita na HPMC a ƙananan yanayin zafi. Misali, a aikace-aikacen aikace-aikacen magunguna, ana amfani da mafita hpmc a zazzabi a daki don tabbatar da kwanciyar hankali da tasirin maganin.
5. Ka'idar PH
Magani na HPMC bayani shine kuma shafi darajar pH. HPMC tana da mafi kyawun danko a cikin tsaka tsaki da kuma raunin acidic, yayin da danko zai rage muhimmanci a ƙarƙashin yanayin acidic ko alkaline. Wannan saboda matsanancin ari-ques zai rusa tsarin kwayoyin halitta na HPMC kuma yana raunana tasirin sa. Sabili da haka, a aikace-aikace na aiki, da ƙimar pH ta sanyaya ta da kiyaye cikin tsayayyen kewayon HPMC (yawanci ph 3-11) don tabbatar da tasirin sa. Misali, a cikin aikace-aikacen abinci, ana amfani da HPMC a cikin abinci na acidic kamar yogurt da ruwan 'ya'yan itace, kuma za'a iya samun ingantaccen danko.
6. Sauran ƙari
A cikin tsarin emulsion, danko na HPMC kuma za'a iya daidaita shi ta hanyar kara sauran thickeners ko abubuwan da aka makirci. Misali, ƙara adadin kayan ado na ciki (kamar sodium chloride) na iya ƙara danko na maganin HPMC; Yayinda ƙara yawan kwayoyin cuta irin su ethanol na iya rage danko. Bugu da kari, lokacin da aka yi amfani da shi a hade tare da wasu thickhan danko, Carbomer, da sauransu), danko da kuma tabbataccen danko kuma za a iya inganta inganta muhimmiyar emulsion. Saboda haka, a cikin tsarin tsari na ainihi, ana iya zabe ƙoshin da suka dace yayin da ake buƙata don inganta danko da aikin emulsion.
HPMC na iya cimma daidaito na danko Emulsion ta hanyar tsarin kwayar sa, maida hankali, rushewar hanyar, zazzabi, ph darajar da ƙari. A aikace aikace aikace, waɗannan dalilai suna buƙatar yin la'akari da su don zaɓar nau'in HPMC da suka dace don cimma kyakkyawan tasirin Thickening. Ta hanyar zanen dabara na kimiyya da kuma sarrafa tsarin kimiyya, HPMC na iya taka muhimmiyar rawa a cikin filayen ginin, abinci da sunadarai masu kyau, suna samar da kyakkyawan aiki da ƙwarewar mai amfani.
Lokaci: Jul-17-2024