Waa maxay doorka hydroxypropyl methylcellulose ee shubka xumbo

Dhererka yaraaday ee xannibaadda tijaabada ee caaryada ka dib qaabaynta ayaa tilmaamaysa saamaynta hydroxypropyl methylcellulose ee xasilloonida mugga ee shubka xumbo leh. Waxaa la arki karaa in qiyaasta 0.05% hydroxypropyl methylcellulose ay tahay qiyaasta ugu fiican, iyo marka qiyaasta hydroxypropylmethylcellulose ay tahay 0.05%, dhererka dhimista ayaa si tartiib tartiib ah u kordheysa. Falanqaynta waxay muujineysaa in marka hydroxypropyl methylcellulose ay ku habboon tahay, waxay yareyn kartaa hoos u dhaca mugga jirka ee adag iyadoo hagaajinaysa dareeraha dareeraha. Inta lagu jiro habka adag ee slurry, biyuhu si joogto ah ayey u lumaan. Xumbo gudaha ah ayaa sidoo kale si joogta ah u niyad jabsan, gaabinta jidhka adagna waa lama huraan. Tani waxay keenaysaa mugga jirka ee adag in uu noqdo mid aan xasilloonayn, iyo isku dhafka hydroxypropyl methylcellulose ma aha oo kaliya sahayda jirka ee adag Ma aha oo kaliya in ay leedahay saameyn wanaagsan oo biyo ah, laakiin sidoo kale waxay dejisaa oo adkeyneysaa xumbo ugu horeysa iyada oo loo marayo sifooyinka qallafsanaanta slurry iyo hydroxypropyl. methylcellulose filim adag oo isku mar ah, si ay u ciyaaraan saameyn wanaagsan oo xasilinta xumbo oo loo yareeyo hoos u dhigista mugga jirka ee adag.

Xasilinta xumbo caawiye

Sida caddadka hydroxypropyl methylcellulose la kordhiyay ilaa 0.5%, hoos u dhacu wax yar ayuu hoos u dhacay. Xogtu waxay muujineysaa in marka maadada hydroxypropyl methylcellulose aysan dhaafin 0.05%, ku darida hydroxypropyl methylcellulose waxay si weyn u wanaajin kartaa dareeraha iyo viscosity ee dheecaanka shubka ah ee xumbo leh. Ka dib markii hydroxypropyl methylcellulose la kala diro, filim jilicsan oo qoyan ayaa la sameeyaa inta u dhaxaysa qaybaha wajiga adag iyo xumbo wejiga gaaska, taas oo leh saameyn siman oo wanaagsan inta lagu jiro habka isku dhafka. Slurry waa bilaash oo lebbisan "kubad", taas oo si wax ku ool ah u wanaajisa dareeraha dareeraha cusub ee isku dhafan: laakiin haddii qadarka hydroxypropyl methylcellulose ka badan yahay 0.5%, dareeraha ayaa noqon doona mid aad u muuqda oo dareeraha ayaa si weyn loo dhimi doonaa. Si kastaba ha noqotee, 0.05% hydroxypropyl methylcellulose ma aha oo kaliya inay hubiso qulqulka, laakiin sidoo kale waxay dejisaa xumbooyinka hawada, taas oo ku habboon in lagu daro dadka.