Menene tasirin riƙewar ruwa na ether cellulose?

Kullum magana, da danko nahydroxypropyl methylcelluloseya fi girma, amma kuma ya dogara da matakin maye gurbin da matsakaicin matsayi. Hydroxypropyl methylcelluloseshi ne ether cellulose wanda ba na ionic ba tare da bayyanar farin foda kuma ba shi da wari da maras kyau, mai narkewa a cikin ruwa da mafi yawan abubuwan da ake amfani da su na polar polar da kuma daidaitattun adadin ethanol / ruwa, propanol / ruwa, dichloroethane, da dai sauransu, wanda ba a iya narkewa a cikin acetone da cikakken ethanol, yana kumbura zuwa cikin fili ko ɗan gajimare a cikin ruwan sanyi. Maganin ruwa mai ruwa yana da aikin saman, yana samar da fim na bakin ciki bayan bushewa, yana jujjuya canjin canji daga sol zuwa gel a jere akan dumama da sanyaya. Babban nuna gaskiya da kwanciyar hankali.

Hydroxypropyl methylcellulose yana da mallaki na thermal gelation. Bayan an ɗora ruwan ruwa na samfurin, yana samar da gel kuma yana haɓaka, kuma ya narke bayan sanyaya. Yanayin gelation na ƙayyadaddun bayanai daban-daban ya bambanta. Solubility ya bambanta da danko. Ƙananan danko, mafi girma da solubility. Kaddarorin hydroxypropyl methylcellulose tare da ƙayyadaddun bayanai daban-daban sun bambanta. Rushewar hydroxypropyl methylcellulose a cikin ruwa ba shi da tasiri ta ƙimar pH.

Features: Yana da halaye na thickening ikon, gishiri fitarwa, PH kwanciyar hankali, ruwa riƙewa, girma da kwanciyar hankali, m film-forming dukiya, fadi da kewayon enzyme juriya, dispersibility da cohesiveness.

Therike ruwaAbubuwan hydroxypropyl methylcellulose sau da yawa suna shafar abubuwa masu zuwa:

1. Uniformity na hydroxypropyl methylcellulose

Hydroxypropyl methylcellulose, methoxyl da hydroxypropoxyl da aka amsa daidai gwargwado ana rarraba su daidai gwargwado, kuma yawan riƙe ruwa yana da yawa.

2. Hydroxypropyl methylcellulose thermal gel zafin jiki

Mafi girman zafin jiki na thermal gel, mafi girman adadin riƙewar ruwa; In ba haka ba, ƙananan adadin riƙe ruwa.

3. Dankowar hydroxypropyl methylcellulose

Lokacin da danko na hydroxypropyl methylcellulose ya karu, yawan riƙewar ruwa kuma yana ƙaruwa; lokacin da danko ya kai wani matakin, haɓakar yawan riƙe ruwa yakan zama mai laushi.

4. Adadin hydroxypropyl methylcellulose da aka kara

Mafi girman adadin hydroxypropyl methylcellulose da aka ƙara, mafi girma 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.