Shin hydroxymethylcellulose daidai yake da hydroxypropyl methylcellulose?

Carboxymethyl cellulose (Carboxymethyl cellulose) an kafa ta hanyar amsawar ƙungiyar hydroxyl na rukunin anhydroglucose akan sarkar cellulose tare da ƙungiyar etherification (chloro Z acid ko ethylene oxide);

Abu ne mai laushi mara launi mai narkewa a cikin ruwa, maganin alkali mai ruwa, ammonia da maganin cellulose, wanda ba zai iya narkewa a cikin maganin kwayoyin halitta da mai; ana iya amfani da shi azaman sizing, calendering da thickening wakili a masana'antar yadi;

Wakilin tsari a cikin takarda da samar da jirgi;

Reabsorption na ƙazanta a cikin abubuwan tsaftacewa na roba;

Wakilin ruwa don zaɓar jan ƙarfe-nickel da tama mai potassium;

Mai kauri mai kauri da mai daidaitawa lokacin da ake hako rijiyoyin mai da gas;

manne abun da ke ciki don fuskar bangon waya;

busassun ginin haɗin ginin;

Abubuwan fenti na ruwa na latex, da sauransu.

Hydroxypropyl methylcellulose (Hypromellose, Cellulose) an yi shi da cellulose auduga mai tsafta sosai a matsayin ɗanyen abu, wanda aka keɓe musamman a ƙarƙashin yanayin alkaline, kuma ba ya ƙunshi wani sinadari mai aiki kamar gabobin dabba da mai. Mai narkewa a cikin ruwa da mafi yawan iyakacin duniya da kuma dacewa daidaitattun adadin ethanol / ruwa, propanol / ruwa, dichloroethane, da dai sauransu, wanda ba zai iya narkewa a cikin ether, acetone, da cikakken ethanol, kuma yana kumbura a cikin wani bayani mai tsabta ko dan kadan turbid colloidal a cikin ruwan sanyi. Maganin ruwa mai ruwa yana da aiki na saman, babban nuna gaskiya da aikin barga.

HPMC yana da mallakar thermal gelation. Maganin ruwa na samfurin yana mai zafi don samar da gel kuma yana hazo, sannan ya narke bayan sanyaya. Yanayin gelation na ƙayyadaddun bayanai daban-daban ya bambanta. Solubility ya bambanta da danko. Ƙananan danko, mafi girma da solubility. Daban-daban dalla-dalla na HPMC suna da wasu bambance-bambance a cikin kaddarorin su. Rushewar HPMC a cikin ruwa ba ta da tasiri ta ƙimar pH.