Taariikhda Boostada:11,Dec,2023
Cellulosesayaa si sii kordheysa loogu isticmaalaa walxaha sibidhka ku salaysan, gaar ahaan hoobiyeyaal qallalan, sababtoo ah xajinta biyaha aad u fiican iyo saamaynta dhumucdooda. Sidaa darteed, sifooyinka iyo habka formation ofether cellulose alaabta cement-ku-salaysan oo wax laga beddelay iyo is-dhexgalka ka dhexeeyaether cellulose iyo slurry sibidhka ayaa si tartiib tartiib ah u noqday diiradda lagu saaray goobaha qalabka dhismaha iyo injineernimada sannadihii la soo dhaafay. Natiijooyin cilmi-baaris oo badan ayaa la gaaray. Isku darka horumarka cilmi-baarista ee gudaha iyo dibadda, waxaa weli jira dhibaatooyinka soo socda ee cilmi-baarista iyo codsigaether cellulose Walxaha sibidhka ku salaysan ee wax laga beddelay:
1.Waxaa jira noocyo badan oo ka mid ahcelluloses.Xataacelluloses loo isticmaalo walxaha sibidhka ku salaysan waxa loo qaybiyaa noocyo badan sida HEC, HEMC iyo HPMC taas oo ay ugu wacan tahay heerka badalkooda. Nooc la mid ahcelluloseswaxay leeyihiin kala duwanaansho badan oo qaabdhismeedka molecular, miisaanka unugyada, heerka beddelka ama waxa ku jira beddelka. Waqtigan xaadirka ah, cilmi-baarista ugu badan ee gudaha iyo dibaddaba waxay diiradda saartaa mid ama dhowrcelluloses.Doorashada eecellulose ether waxay ku kooban tahay qaybahooda codsiga. Tilmaamaha qaab-dhismeedka kelli eecelluloses lama tilmaamo, wakiilladooduna ma metelaan. Gabagabada waa natiijada lama huraanka ah ee "beddelka qayb ka mid ah", waxaana jira khilaafyo iyo khilaafyo ka dhex jira natiijooyinka imtixaanka. Sidaa darteed, waxaa lagama maarmaan ah in si nidaamsan loo barto kala-soocidda iyo sifooyinka dhismaha iyo hababka noocyada kala duwan eeether cellulose alaabta gelling ee la bedelay.
2.Suugaanta jirta waxay darsay saamaynta ay leedahaycelluloses on sifooyinka kala duwan ee walxaha sibidhka, oo ay sameeyeen falanqayn gaar ah oo ku saabsan habka samayntiisa, laakiin ku guuldareystay in la go'aamiyo xiriirka ka dhexeeya qaab-dhismeedka kellicelluloses iyo sifooyinka dheecaanka sibidhka ee la beddelay. joogto ah, waxaana jira kala duwanaansho muuqda oo ku saabsan hababkooda. Waxaa ka mid ahether celluloseQalabka sibidhka ku salaysan oo wax laga beddelay, waxaa jira daraasado yar oo ku saabsan maaddooyinka leh qaabab kala duwan oo kelli ah, kuwaas oo aan si dhab ah u sharxi karin habka samaynta ee sifooyinka kala duwan eeether cellulose-wax laga beddelay sibidh ku salaysan. . Inkastoo suugaanta qaar ay taas heleencelluloses oo leh qaabab molecular oo kala duwan ayaa saameyn kala duwan ku leh fuuq-celinta sibidhka, sababaha hoose weli lama sii faahfaahin.
3.Qaabka saamayntaether cellulose ku saabsan fuuq-celinta sibidhka kinetics ayaa weli ah in la sii darso. Waqtigan xaadirka ah, oo ku saabsan habka fuuq-celinta ee daahitaankaether cellulose, inkastoo adsorption loo arko inay tahay sababta dhabta ah ee dib u dhigista fuuq-celintaether cellulose, waxaa la ogaaday in ay sii xoogaysanayso awoodda adsorption ee u dhaxaysa alaabta fuuq-celinta iyoether cellulose, fuuq-celinta sibidhka oo badan. Habka adsorption u dhexeeyacelluloses iyo alaabta fuuq-celinta sibidhka, iyo sidoo kale sababaha kala duwan ee awoodaha adsorption ee kala duwancelluloses iyo wax soo saarka fuuq-celinta sibidhka, lama sii darsin.
4.Sugaanta jirta ayaa taas tusinaysacelluloses waxay si weyn u saameyn kartaa qaab-dhismeedka daloolka ee walxaha sibidhka ku salaysan.Celluloses Waxa kale oo la rumaysan yahay in ay korka-firfircoon yihiin oo ay saamayn hawo-ku-jiid leh ku leeyihiin dareeraha sibidhka ee cusub, taas oo kordhinaysa xuubnimada dareeraha sibidhka ee adag. Si kastaba ha ahaatee, saamayntacelluloses on habka joogtada ah iyo samaynta ee qaybinta cabbirka daloolka dheecaanka sibidhka si dhif ah ayaa looga hadlayaa.
5. sifooyinka Rheological waa arrin muhiim ah oo ka mid ah codsigacelluloses ee walxaha sibidhka ku salaysan. Nasiib darro, waxaa jira daraasado yar oo ku saabsan sifooyinka rheological eeether cellulose slurry sibidhka wax laga beddelay gudaha iyo dibadda.
Waqtiga boostada: Dec-11-2023
