Hydroxypropyl methylcellulose (HPMC) wani nau'in polymer ne wanda aka saba amfani dashi a masana'antu iri-iri, gami da magunguna, abinci, gini, da kayan kwalliya. Wani muhimmin al'amari na aikace-aikacen sa shine solubility a daban-daban masu kaushi, ciki har da isopropyl barasa (IPA).
HPMC gabaɗaya yana narkewa a cikin nau'ikan kaushi iri-iri, kuma ƙarfin sa ya bambanta dangane da abubuwa kamar nauyin kwayoyin halitta, matakin maye gurbin, da zafin jiki. HPMC yana da ɗanɗano kaɗan na solubility a cikin yanayin isopropyl barasa.
Barasa isopropyl, wanda kuma aka sani da shafa barasa, wani kaushi ne na yau da kullun da ake amfani da shi a cikin aikace-aikace iri-iri. An san shi don ikonsa na narkar da abubuwa masu yawa, kuma HPMC ba banda. Koyaya, solubility na HPMC a cikin barasa isopropyl bazai zama cikakke ko nan take ba kuma yana iya dogara da dalilai da yawa.
Matsayin maye gurbin HPMC yana nufin matakin maye gurbin hydroxypropyl da ƙungiyoyin methyl don ƙungiyoyin hydroxyl a cikin tsarin cellulose. Wannan siga yana rinjayar solubility na HPMC a daban-daban kaushi. Gabaɗaya, babban digiri na maye gurbin zai iya inganta solubility a wasu kaushi, ciki har da isopropyl barasa.
Nauyin kwayoyin halitta na HPMC wani abu ne da za a yi la'akari da shi. Mafi girman nauyin kwayoyin HPMC na iya samun kaddarorin solubility daban-daban idan aka kwatanta da ƙananan bambance-bambancen nauyin kwayoyin. Shi ne ya kamata a lura da cewa akwai daban-daban maki na HPMC a kasuwa tare da daban-daban kaddarorin, kuma masana'antun sau da yawa bayar da takamaiman jagora a kan solubility a daban-daban kaushi.
Hakanan zafin jiki yana rinjayar solubility na HPMC a cikin barasa isopropyl. Gabaɗaya magana, ƙara yawan zafin jiki na iya haɓaka narkewar yawancin abubuwa, amma wannan na iya bambanta dangane da takamaiman ƙimar polymer.
Don narkar da HPMC a cikin barasa isopropyl, zaku iya bin waɗannan matakan gabaɗaya:
Auna adadin da ake buƙata: Ƙayyade adadin HPMC da ake buƙata don aikace-aikacen ku.
Shirya sauran ƙarfi: Yi amfani da akwati mai dacewa kuma ƙara adadin da ake buƙata na barasa isopropyl. Ana ba da shawarar yin amfani da akwati tare da murfi don hana ƙura.
Ƙara HPMC A hankali: Yayin motsawa ko motsawa, ƙara HPMC a hankali. Tabbatar ku haɗu sosai don haɓaka narkewa.
Daidaita yanayi idan ya cancanta: Idan cikakken narkarwar ba a samu ba, yi la'akari da daidaita abubuwa kamar zazzabi ko amfani da wani nau'i na daban na HPMC.
Tace idan ya cancanta: a wasu lokuta, ɓangarorin da ba a narkar da su na iya kasancewa. Idan nuna gaskiya yana da mahimmanci, zaku iya tace maganin don cire duk wani abu mai ƙarfi da ya rage.
HPMC gabaɗaya yana narkewa a cikin barasa na isopropyl, amma matakin solubility yana shafar abubuwa kamar matakin maye gurbin, nauyin kwayoyin, da zafin jiki. Idan kana da takamaiman maki ko nau'in HPMC, ana ba da shawarar duba jagororin masana'anta don ingantacciyar bayani kan solubility barasa na isopropyl.
Lokacin aikawa: Janairu-25-2024