Hydroxypropyl methylcellulose (HPMC), raw cellulose, za a iya tace auduga ko itace ɓangaren litattafan almara, yana da matukar muhimmanci a murkushe shi kafin alkalization ko a lokacin alkalization, da kuma murkushe shi ne ta hanyar inji makamashi Rusa tarar tsarin na cellulose albarkatun kasa don rage matakin. crystallinity da polymerization, ƙara ta surface area, game da shi inganta samun dama da sinadaran dauki ikon reagent dauki ga uku hydroxyl kungiyoyin a kan glucose zobe kungiyar na cellulose macromolecule.
Hydroxypropyl methylcellulose (HPMC) ana amfani dashi azaman albarkatun ƙasa don samar da mai, wanda zai iya fahimtar amfani da jimlar sukari, inganta ƙimar amfani da albarkatun ƙasa, rage ragowar adadin substrate a cikin broth fermentation, da rage farashin ruwan sha. magani. Wannan hydroxypropyl methylcellulose Halayen methylcellulose suna da amfani ga ingantawa na tsari, ciyar da abinci da ci gaba da tafiyar matakai na fermentation, guje wa jerin matsalolin kamar sarrafa abun da ke ciki na matsakaici da dilution kudi; Hakanan yana da amfani ga tsarin tsarin fermentation. Tun lokacin da aikin hydroxypropyl methylcellulose (HPMC) yayi kama da sauran ethers na ruwa, ana iya amfani dashi a cikin fenti na latex da kuma abubuwan da aka gyara na ruwa mai narkewa a matsayin wakili na fim, thickener, emulsifier da stabilizer, da dai sauransu. mai kyau lalacewa juriya, matakin da mannewa, kuma ya inganta surface tashin hankali, kwanciyar hankali ga acid da alkali, da kuma dacewa da karfe pigments.
Hydroxypropyl methylcellulose (HPMC) yana da tasiri mai kyau a matsayin mai kauri don fenti polyvinyl acetate na tushen ruwa. Matsayin maye gurbin ether cellulose yana ƙaruwa, kuma ana haɓaka juriya ga yashwar kwayan cuta.
Kodayake ka'idar haɗin etherification na hydroxypropyl methyl cellulose (HPMC) ba ta da rikitarwa, yana buƙatar alkalized, daɗaɗɗen albarkatun kasa, da kuma alkalized. Kowane yanayi na etherification, dawo da sauran ƙarfi, centrifugation, wankewa da bushewa ya ƙunshi babban adadin fasaha mai mahimmanci da ilimi mai yawa.
Don nau'ikan samfura daban-daban, kowane yanayi yana da sabbin yanayin sarrafawa, kamar zazzabi, lokaci, matsa lamba da sarrafa kwararar kayan. Kayayyakin taimako da kayan sarrafawa sune garanti masu kyau don ingantaccen ingancin samfur da ingantaccen tsarin samarwa.
Lokacin aikawa: Dec-15-2022