Kodi fungo la hydroxypropyl limakhudza bwanji methylcluloulose?

Zotsatira zake ndi kukula kwa fungo la hydroxypropyl methylcellulose:

Synthesis ya hydroxypropyl methylcellulose ndi 35-40 pholoul ° ma poimba a alkali kutsata. Ikani fiberi ya alkali mu ketulo yoyeserera, onjezani Propeyne Oxide ndi Methyl chloride motsatira, ndikumuyenzera pa 50-8 ° C kwa maola 5, kukakamizidwa kwakukulu ndi 1.8mpo. Kenako onjezani kuchuluka kwa hydrochloric acid ndi oxalic acid ndi madzi otentha pa 90 ° C kuti atsuke nkhaniyo kuti achuluke voliyumu. Madzi amtundu wa penti. Sambani ndi madzi mpaka osalowerera ndale. Pamene chinyontho cha zinthuzo ndi chotsika kuposa 60%, pukuta ndi mpweya wotentha pa 130 ° C mpaka chinyontho chotsika kuposa 5%.

HPMC yopangidwa ndi njira yosungunulira imagwiritsa ntchito toluene ndi isoppanol ngati ma sol sol. Ngati kutsuka sikwabwino, fungo labwino limakhalabe. Pakadali pano, mtundu wa nyumba ya hydroypypyl wa methylcellulose HPMC imasiyanasiyana, ndipo mtengo wake umasiyana kwambiri, ndipo zimapangitsa kuti zikhale zovuta, zimapangitsa kuti makasitomala apange chisankho chabwino. Ichi ndiye vuto la kusinthaku, sikukhudza kugwiritsa ntchito ndipo palibe vuto, Hopmc sayenera kununkhiza ammonia, wowuma ndi mowa; HPMC yoyesedwa imatha kununkhiza mitundu yonse ya fungo lambiri, ngakhale zitakhala zopweteka, zimamveka bwino. Komabe, hydroxypypyl methylcellulose yopangidwa ndi opanga ambiri ali ndi fungo lamphamvu komanso fungo lamphamvu. Ubwinowu sikuti ndilibe.

HyPromellose amapezeka chifukwa cha thonje loyenga ndi madzi osowa kuti apeze ma cellulose alkilose, ndiye kuwonjezera, toluene, ndi isoppanol kuti atsutse, kuwuma, ndi zina zomaliza. Padzakhala fungo, kotero ogwiritsa ntchito amatha kugwiritsa ntchito chidaliro.