Hydroxypropyl methylcellulose waa eter cellulose aan-ionic ahayn oo laga sameeyay cellulose maadada polymer dabiiciga ah iyada oo loo marayo taxane kiimiko ah.Waa nooc ka mid ah budo cad oo aan ur lahayn, aan ur lahayn, oo aan sun ahayn, oo ku barara biyo qabow waxaana loo yaqaan xal kolloidal cad ama waxoogaa daruur ah.Waxay leedahay sifooyinka dhumucda, xidhitaanka, kala firdhiyey, emulsifying, film-samaynta, laalista, adsorbing, gelling, dusha firfircoon, ilaalinta qoyaan iyo ilaalinta kolloid.
Hydroxypropyl methylcellulose heer sare ah ayaa si wax ku ool ah u xalin karta dhibaatada haynta biyaha ee heerkulka sare.Xilliyada heerkulka sare, gaar ahaan meelaha kulul iyo qalalan iyo dhismaha lakabka khafiifka ah ee dhinaca qoraxda, tayada sare leh ee HPMC hydroxypropyl methylcellulose ayaa loo baahan yahay si loo hagaajiyo haynta biyaha ee slurry.
Hydroxypropyl methylcellulose oo tayadeedu sarreyso ayaa si gaar ah u lebbisan.Methoxy iyo kooxaha hydroxypropoxy waxay si siman u qaybsan yihiin silsiladda molecular cellulose, taas oo kor u qaadi karta atamka oksijiinta ee hydroxyl iyo ether bonds iyo ururka biyaha.Awoodda isku-darka iyo samaynta curaarta hydrogen waxay u beddeshaa biyaha bilaashka ah biyo xidhxidhan, si wax ku ool ah loo xakameeyo uumiga biyaha ee ay sababto heerkulka sare ee cimilada iyo gaaritaanka xajinta biyaha sare.
Waqtiga boostada: Meey-17-2023