Viscosity pụtara ìhè bụ ihe dị mkpa na-egosi hydroxypropyl methylcellulose, ụzọ nha ndị a na-ejikarị gụnyere viscometry rotational, capillary viscometry na drop viscometry.
A tụleburu Hydroxypropyl methylcellulose site na iji viscometry capillary na-eji Ubbelohde viscometer. Ọtụtụ mgbe, ngwọta nha bụ ngwọta mmiri nke 2, usoro a bụ: V = Kdt. V na-anọchi anya viscosity, K bụ ihe na-adịgide adịgide nke viscometer, d na-anọchi anya njupụta na okpomọkụ na-adịgide adịgide, t na-ezo aka na oge site n'elu ruo na ala nke viscometer, unit ahụ bụ nke abụọ, usoro a dị mfe iji rụọ ọrụ na ya. dị mfe ịkpata ezighi ezi, ọ na-esikwa ike ịmata ọdịiche dị n'ụdị hydroxypropyl methylcellulose.
Nsogbu nke delamination nke gluu ihe owuwu bụ nnukwu nsogbu ndị ahịa zutere. Nke mbụ, nsogbu nke akụrụngwa kwesịrị ịtụle maka ihe owuwu gluu. Isi ihe kpatara oyi akwa a na-ewu ụlọ bụ na mmanya polyvinyl (PVA) na hydroxypropyl methylcellulose (HPMC) anaghị adabara. Ihe nke abụọ kpatara ya bụ na oge na-akpali akpali ezughị, na ịrụ ọrụ nke ọma nke gluu na-ewu adịghị mma.
A ghaghị iji hydroxypropyl methylcellulose (HPMC) nke dị ugbu a mee ihe n'ịrụ ụlọ, n'ihi na hydroxypropyl methylcellulose (HPMC) na-agbasa na mmiri ma ọ nweghị ike ịgbaze n'ezie, na viscosity nke mmiri mmiri na-abawanye nwayọọ nwayọọ na ihe dị ka nkeji 2, na-eme transperent viscous colloid. .
Mgbe a na-agwakọta ngwaahịa na-ekpo ọkụ na-ekpo ọkụ na mmiri oyi, ha ga-agbasa ngwa ngwa na mmiri ọkụ ma pụọ na mmiri ọkụ. Mgbe okpomọkụ na-adaba n'otu ọnọdụ okpomọkụ, viscosity ga-apụta nwayọọ nwayọọ ruo mgbe a ga-emepụta colloid viscous transperent. Hydroxypropyl na nrapado ihe owuwu Usoro akwadoro nke HPMC bụ 2-4kg.
Hydroxypropyl methylcellulose (HPMC) nwere akụrụngwa kemịkalụ kwụsiri ike, nguzogide mildew na njigide mmiri dị mma na nrapado ihe owuwu, yana mgbanwe pH anaghị emetụta ya. Enwere ike iji ya mee ihe site na 100,000 S ruo 200,000 S, ma elu viscosity na mmepụta, nke ka mma, na viscosity bụ inversely proportionally na bonding ike. Nke dị elu nke viscosity, na-ebelata ike, n'ozuzu viscosity nke 100,000 S kwesịrị ekwesị.
Oge nzipu: Eprel-20-2023