Saamaynta hydroxyethyl cellulose ether ee fuuq-celinta hore ee sibidhka CSA

SaamayntaHydroxyethyl cellulose (HEC)iyo beddelka sare ama hooseeya ee hydroxyethyl methyl cellulose (H HMEC, L HEMC) ee habka fuuq-celinta hore iyo alaabta fuuq-celinta ee sulfoaluminate (CSA) sibidhka ayaa la bartay. Natiijooyinka waxay muujiyeen in maadooyinka kala duwan ee L-HEMC ay kor u qaadi karaan fuuq-celinta sibidhka CSA 45.0 min ~ 10.0 h. Dhammaan saddexda ethers cellulose waxay dib u dhigeen fuuq-baxa kala dirida sibidhka iyo marxaladda isbeddelka ee CSA marka hore, ka dibna waxay kor u qaadeen fuuq-celinta gudaha 2.0 ~ 10.0 h. Soo bandhigida kooxda methyl waxay xoojisay saamaynta kobcinta ether hydroxyethyl cellulose ether ee fuuq-celinta sibidhka CSA, iyo L HEMC waxay lahayd saamaynta ugu xoogan ee kor u qaadida; Saamaynta ether-ka cellulose oo leh beddelaadyo kala duwan iyo darajo beddelka alaabada fuuq-celinta gudaha 12.0 h kahor fuuq-celinta ayaa si weyn u kala duwan. HEMC waxay leedahay saameyn dhiirigelineed oo xoogan oo ku saabsan alaabta fuuq-celinta marka loo eego HEC. L HEMC ee CSA sibidhka wax laga beddelay waxay soo saartaa xabagta calcium-vanadite iyo aluminium ee ugu badan 2.0 iyo 4.0 h ee fuuq-baxa.
Erayada muhiimka ah: sibidhka sulfoaluminate; Eter cellulose; Bedelka; Darajada beddelka; Habka fuuq-celinta; Alaabta fuuq-celinta

Sulfoaluminate (CSA) sibidhka leh calcium sulfoaluminate anhydrous (C4A3) iyo boheme (C2S) sida macdanta clinker ugu weyn waa faa'iidooyinka engegan degdega ah iyo xoogga hore, anti-barafaynta iyo anti-permeability, alkalinity hooseeya, iyo isticmaalka kulaylka hoose ee habka wax-soo-saarka, oo si sahlan loo shiidi karo ee clinker. Waxaa si weyn loogu isticmaalaa dayactirka degdega ah, ka-hortagga ka-hortagga iyo mashaariicda kale. Cellulose ether (CE) ayaa si weyn loogu isticmaalaa wax ka beddelka hoobiye sababta oo ah sifooyinkeeda ilaalinta biyaha iyo dhumucdooda. Dareen-celinta fuuq-celinta sibidhka ee CSA waa mid adag, muddada soo-bandhigidda waa mid aad u gaaban, xilliga dardar-gelinta waa heerar badan, iyo fuuq-celintiisu waxay u nugul tahay saameynta isku-darka iyo heerkulka daaweynta. Zhang iyo al. waxay ogaatay in HEMC ay sii dheerayn karto muddada soo-galinta ee fuuq-celinta ee sibidhka CSA oo ay ka dhigi karto heerka ugu sarreeya ee sii-deynta kulaylka fuuq-baxa. Sun Zhenping iyo al. la ogaaday in saamaynta nuugista biyaha ee HEMC ay saamaysay fuuq-celinta hore ee dareeraha sibidhka. Wu Kai iyo al. Waxa la rumaysnaa in daciifnimada daciifka ah ee HEMC ee dusha sare ee sibidhka CSA aanay ku filnayn inay saamayso heerka sii daynta kulaylka ee fuuq-baxa sibidhka. Natiijooyinka cilmi-baarista ee saamaynta HEMC ee fuuq-celinta sibidhka CSA ma ahayn mid la mid ah, taas oo ay sababi karto qaybo kala duwan oo ah clinker sibidhka oo la isticmaalay. Wan iyo al. Waxaa la ogaaday in haynta biyaha ee HEMC ay ka wanaagsan tahay tan hydroxyethyl cellulose (HEC), iyo viscosity firfircoon iyo xiisadda dusha sare ee xalka dalool ee HEMC-la beddelay CSA cement slurry oo leh shahaadada beddelka sare ayaa ka weyn. Li Jian iyo al. waxay la socdeen isbeddelada heerkulka gudaha hore ee HEMC-la beddelay ee hoobiyeyaal sibidhka CSA ee hoos yimaada dareeraha go'an waxayna ogaadeen in saamaynta HEMC ee heerarka kala duwan ee beddelka ay ka duwan tahay.
Si kastaba ha ahaatee, daraasadda isbarbardhigga ah ee saamaynta CE ee leh beddeleyaal kala duwan iyo darajo beddelka fuuq-celinta hore ee sibidhka CSA kuma filna. Warqadan, saamaynta hydroxyethyl cellulose ether oo leh waxyaabo kala duwan, kooxaha beddelka ah iyo heerarka beddelka ee fuuq-celinta hore ee sibidhka CSA ayaa la darsay. Sharciga sii daynta kulaylka fuuq-baxa ee 12h ee wax laga beddelay sibidhka CSA ee leh hydroxyethyl cellulose ether ayaa si adag loo falanqeeyay, badeecadaha fuuq-baxa ayaa tiro ahaan la falanqeeyay.

1. Tijaabi
1.1 Qalabka Ceyriinka ah
Sibidhku waa 42.5 sibidhka CSA ee degdega u adkeeya, wakhtiga dejinta bilowga iyo ugu dambeeya waa 28 min iyo 50 daqiiqo, siday u kala horreeyaan. Qalabkeeda kiimikaad iyo ka kooban macdanta (jajab tiro badan, saamiga iyo saamiga biyaha-sibidhka ee lagu sheegay warqadan waa jajab tiro badan ama saamiga tirada guud) beddelka CE waxaa ku jira 3 hydroxyethyl cellulose ethers oo leh viscosity la mid ah: Hydroxyethyl cellulose (HEC), heerka sare ee beddelka hydroxyethyl methyl cellulose (H HEMC), heerka hoose ee beddelka hydroxyethyl methyl fibrin (L HEMC), viscosity of 32, 37, 36 Pa·s, heerka beddelka 2.5, 1.9, 1.6 biyaha qaso biyaha deionized.
1.2 Isku qas
Qiyaasta biyaha-sibidhka go'an ee 0.54, nuxurka L HEMC (maqaalkan waxa lagu xisaabiyaa tayada dhoobada biyaha) wL=0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, HEC iyo Waxyaabaha H HEMC ee 0.5%. Warqadan: L HEMC 0.1 wL=0.1% L HEMC waxay bedeshaa sibidhka CSA, iyo wixii la mid ah; CSA waa sibidh CSA saafi ah; Sibidhka CSA ee HEC la beddelay, L HEMC sibidhka CSA la beddelay, H HEMC sibidhka CSA ee la beddelay ayaa loo kala horreeyaa sida HCSA, LHCSA, HHCSA.
1.3 Habka tijaabada
Mikrometer isothermal sideed kanaal ah oo cabirkiisu yahay 600 mW ayaa loo adeegsaday tijaabinta kulaylka fuuq-baxa. Imtixaanka ka hor, qalabku waxa la dejiyay at (20±2) ℃ iyo qoyaan qaraabo RH= (60±5) % 6.0 ~ 8.0 h. Sibidhka CSA, CE iyo isku dhafka biyaha ayaa la isku qasay iyadoo loo eegayo saamiga isku dhafka ah iyo isku dhafka korantada waxaa lagu sameeyay 1min xawaare dhan 600 r/min. Isla markiiba miisaan (10.0± 0.1) g ku shub qumbaha qumbaha, geli ampoule qalabka oo billow tijaabada wakhtiga. Heerkulka fuuq-baxa wuxuu ahaa 20 ℃, xogtana waxaa la duubay 1daqiiqo kasta, baaritaankuna wuxuu socday ilaa 12.0h.
Falanqaynta Thermogravimetric (TG): dareeraha sibidhka waxaa loo diyaariyey iyadoo loo eegayo TS EN ISO 9597-2008 Sibidhka - Hababka tijaabada - Go'aaminta waqtiga iyo dhawaaqa Sibidhka isku-dhafka ah ayaa la geliyey qaabka tijaabada ee 20 mm × 20 mm × 20 mm, ka dib gariir macmal ah 10 jeer, waxaa la dhigay hoos (20 ± 2) ℃ iyo RH = (60± 5) % si loogu daweeyo. Tijaabooyinku waxa la qaaday da'da t=2.0, 4.0 iyo 12.0 h, siday u kala horreeyaan. Ka dib markii laga saaro lakabka sare ee muunada (≥1 mm), waa la jejebiyey qaybo yaryar waxaana lagu qooyay khamriga isopropyl. Aalkolada isopropyl waxaa la bedelay 1d kasta 7 maalmood oo isku xigta si loo hubiyo joojinta dhammaystiran ee falcelinta fuuq-celinta, waxaana lagu qallajiyey 40 ℃ ilaa miisaan joogto ah. Miisaanka (75 ± 2) muunado mg galay qoloflaha, kuleyli shaybaarada laga bilaabo 30 ℃ ilaa 1000 ℃ heerka heerkulka 20 ℃ / min in jawi nitrogen hoos xaalad adiabatic. Burburka kulaylka ee alaabada fuuq-celinta sibidhka ee CSA waxay inta badan ku dhacdaa 50 ~ 550 ℃, iyo waxa ku jira biyaha kiimikaad ku xidhan waxa lagu heli karaa xisaabinta heerka khasaaraha tirada badan ee muunadaha gudaha xadkan. AFt waxay lumisay 20 biyood oo crystalline ah iyo AH3 waxay lumisay 3 biyood crystalline intii lagu jiray kulaylka 50-180 ℃. Waxa ku jira badeecad kasta oo fuuqbaxa ah waxaa loo xisaabin karaa iyadoo loo eegayo qalooca TG.

2. Natiijooyinka iyo doodaha
2.1 Falanqaynta habka fuuq-celinta
2.1.1 Saamaynta nuxurka CE ee habka fuuq-celinta
Marka loo eego qalloocyada fuuq-celinta iyo qalooca ka-baxsan ee maaddo kala duwan L HEMC wax ka beddeley CSA cement slurry, waxaa jira 4 heer sare ah oo heer sare ah oo ku saabsan fuuq-baxa iyo qalooca exothermic ee saafiga ah ee CSA cement slurry (wL=0%). Habka fuuq-celinta waxaa loo qaybin karaa marxaladda kala dirida (0 ~ 15.0min), marxaladda isbeddelka (15.0 ~ 45.0min) iyo heerka dardargelinta (45.0min) ~ 54.0min), heerka hoos u dhaca (54.0min ~ 2.0h), heerka dheellitirka firfircoon 2.0 ~ 4.0h), heerka dib u soo celinta (4.0 ~ 5.0h), heerka dib u soo celinta (5.0 ~ 10.0h) iyo heerka xasilinta (10.0h ~). 15.0min ka hor fuuq-celinta, macdanta sibidhka ayaa si degdeg ah u milmay, iyo fuuq-celinta koowaad iyo labaad ee heerka ugu sarreeya ee marxaladdan iyo 15.0-45.0 min waxay u dhigantaa sameynta marxaladda metastable AFt iyo isbeddelkeeda si ay u noqoto monosulfide calcium aluminate hydrate (AFm), siday u kala horreeyaan. Heerka saddexaad ee ugu sarreeya ee 54.0min ee fuuq-baxa ayaa loo isticmaalay si loo qaybiyo dardargelinta fuuq-celinta iyo heerarka hoos u dhaca, iyo heerarka jiilka ee AFt iyo AH3 waxay u qaateen tan sida barta is-rog-rogista, kor u kaca ilaa hoos u dhaca, ka dibna waxay galeen heerka dheellitirka firfircoon ee soconaya 2.0 h. . Marka fuuq-baxa uu ahaa 4.0h, fuuq-celinta ayaa mar kale soo gashay marxaladda dardargelinta, C4A3 waa kala dirid degdeg ah iyo abuurista alaabada fuuq-celinta, iyo 5.0h, heerka ugu sarreeya ee kuleylka kuleylka ayaa soo muuqday, ka dibna wuxuu galay marxaladda hoos u dhaca mar kale. Fuuq-baxa wuxuu xasilay abbaaraha 10.0 saac ka dib.
Saamaynta nuxurka L HEMC ee kala dirida fuuq-celinta sibidhka ee CSAiyo heerka beddelka waa ka duwan yahay: marka L HEMC content hooseeyo, L HEMC bedelay sibidhka CSA koollada labaad fuuq-baxa sii daayo ugu sarreysa u muuqday wax yar ka hor, heerka sii daayo kulaylka iyo qiimaha ugu sarreeya sii daayo kulaylku aad ayuu uga sarreeyaa koollada CSA saafi ah; Kordhinta nuxurka L HEMC, heerka sii daynta kulaylka ee L HEMC wax ka beddelka slurry CSA sibidhka ayaa si tartiib tartiib ah hoos ugu dhacay, oo ka hooseeya saafiga CSA dareeraha sibidhka. Tirada ugu sarreysa ee exothermic qalooca fuuq-baxa ee L HEMC 0.1 waxay la mid tahay tan koollada CSA saafiga ah, laakiin 3rd iyo 4th fuuqbaxa exothermic sare ayaa loo horumariyay 42.0min iyo 2.3h, siday u kala horreeyaan, iyo marka la barbar dhigo 33.5 iyo 9.0 mW/g oo ah koollada sibidhka ee CSA ee saafiga ah, heerkooda ugu sarreeya ayaa la kordhiyey ilaa 36.9 iyo 10.5mW/g, siday u kala horreeyaan. Tani waxay tusinaysaa in 0.1% L HEMC uu dedejiyo oo uu kor u qaado fuuq-celinta L HEMC sibidhka CSA ee heerka u dhigma. Iyo nuxurka L HEMC waa 0.2% ~ 0.5%, L HEMC waxay wax ka beddeshay dardargelinta sibidhka CSA iyo heerka hoos u dhigista si tartiib tartiib ah oo la isku daray, taas oo ah, heerka afraad ee exothermic ka hor oo lagu daro heerka saddexaad ee exothermic, dhexe ee heerka dheelitirka firfircoon mar dambe ma muuqan , L HEMC ee CSA saamaynta dhiirigelinta fuuq-celinta sibidhka ayaa aad muhiim u ah.
L HEMC waxay si weyn kor ugu qaadday fuuq-celinta sibidhka CSA 45.0 min ~ 10.0 h. 45.0min ~ 5.0h, 0.1%L HEMC wax yar ayay ku leedahay fuuq-celinta sibidhka CSA, laakiin marka nuxurka L HEMC uu kordho 0.2% ~ 0.5%, saamayntu maaha mid muhiim ah. Tani gabi ahaanba way ka duwan tahay saamaynta CE ay ku leedahay fuuq-celinta sibidhka Portland. Daraasadaha suugaanta ayaa muujiyay in CE oo ay ku jiraan kooxo badan oo hydroxyl ah oo ku jira molecule lagu dhejin doono dusha sare ee qaybaha sibidhka iyo alaabta fuuqbaxa sababtoo ah isdhexgalka saldhigga acid-base, sidaas darteed dib u dhigista fuuq-celinta hore ee sibidhka Portland, iyo xoojinta adsorption. sida muuqata dib u dhaca. Si kastaba ha ahaatee, waxaa laga helay suugaanta in awoodda adsorption ee CE ee dusha AFt ay ka daciifsan tahay kan calcium silicate hydrate (C-SH) gel, Ca (OH) 2 iyo calcium aluminate hydrate dusha, halka awoodda adsorption ee HEMC ee ku saabsan qaybaha sibidhka ee CSA ayaa sidoo kale ka daciifsanaa ta qaybaha sibidhka Portland. Intaa waxaa dheer, atomka oksijiinta ee ku jira molecule CE wuxuu hagaajin karaa biyaha bilaashka ah ee qaabka hydrogen bond sida biyaha la isku dhejiyay, beddelo xaaladda biyaha uumi-baxa ee dareeraha sibidhka, ka dibna saameynaya fuuq-celinta sibidhka. Si kastaba ha noqotee, nuugista daciifka ah iyo nuugista biyaha CE waxay si tartiib tartiib ah u daciifi doontaa kordhinta wakhtiga fuuq-celinta. Waqti go'an ka dib, biyaha la isku daray ayaa la sii dayn doonaa oo waxay ka falcelin doonaan qaybaha sibidhka ee aan biyaha lahayn. Intaa waxaa dheer, saameynta soo-saarka CE waxay sidoo kale siin kartaa meel dheer oo loogu talagalay alaabta fuuq-celinta. Tani waxay noqon kartaa sababta ay L HEMC kor ugu qaaddo fuuq-celinta sibidhka CSA ka dib 45.0 min fuuq-celinta.
2.1.2 Saamaynta beddelka CE iyo heerka ay ku leedahay habka fuuq-celinta
Waxaa laga arki karaa qaloocyada sii daynta kulaylka fuuq-baxa ee saddexda CE wax-ka-beddelka CSA slurries. Marka la barbar dhigo L HEMC, qalooca heerka sii daynta kulaylka fuuq-baxa ee HEC iyo H HEMC ee CSA slurries wax laga beddelay ayaa sidoo kale leh afar heerar sii deynaya kulaylka fuuqbaxa. Dhammaan saddexda CE waxay dib-u-dhac ku sameeyeen heerarka kala-diridda iyo beddelka ee fuuq-celinta sibidhka ee CSA, iyo HEC iyo H HEMC waxay leeyihiin saameyn xooggan oo dib-u-dhac ah, dib-u-dhac ku yimaada soo bixitaanka heerka fuuq-baxa la dedejiyey. Ku darida HEC iyo H-HEMC waxay waxyar dib u dhigtay heerka ugu sarreeya fuuq-baxa 3aad, waxay si weyn u horumarisay heerka ugu sarreeya fuuq-baxa 4-aad, waxayna kordhisay heerka ugu sarreeya fuuq-baxa 4-aad. Gebogebadii, sii daynta kulaylka fuuq-baxa ee saddexda CE ee wax laga beddelay ee CSA slurries ayaa ka weyn kan saafiga ah ee CSA slurries ee muddada fuuq-celinta ee 2.0 ~ 10.0 h, taas oo muujinaysa in saddexda CE ay dhammaantood kor u qaadaan fuuq-celinta sibidhka CSA marxaladdan. Xilliga fuuq-celinta ee 2.0 ~ 5.0 h, sii-deynta kulaylka fuuq-celinta ee sibidhka L HEMC ee la beddelay CSA waa kan ugu weyn, iyo H HEMC iyo HEC waa kan labaad, taas oo muujinaysa in saameynta kor u qaadida beddelka hoose ee HEMC ee fuuq-celinta sibidhka CSA ay ka sii xoog badan tahay. . Saamaynta catalytic ee HEMC way ka xoog badnayd tii HEC, taas oo muujinaysa in soo bandhigida kooxda methyl ay xoojisay saamaynta catalytic ee CE ee fuuq-celinta sibidhka CSA. Qaab dhismeedka kiimikaad ee CE ayaa saamayn weyn ku leh ku dhufashada oogada qaybaha sibidhka, gaar ahaan heerka beddelka iyo nooca beddelka.
Caqabadda adag ee CE way ka duwan tahay beddelkayaal kala duwan. HEC waxay leedahay kaliya hydroxyethyl ee silsiladda dhinaca, taas oo ka yar HEMC oo ay ku jiraan kooxda methyl. Sidaa darteed, HEC waxay leedahay saameynta ugu xooggan ee xayeysiinta qaybaha sibidhka ee CSA iyo saameynta ugu weyn ee falcelinta xiriirka ka dhexeeya qaybaha sibidhka iyo biyaha, sidaas darteed waxay leedahay saameynta dib u dhigista ugu cadcad ee fuuqbaxa saddexaad ee ugu sarreeya. Nuugista biyaha ee HEMC oo leh beddelaad sare ayaa si weyn uga xoog badan kan HEMC oo leh beddel hoose. Natiijo ahaan, biyaha bilaashka ah ee ku lug leh falcelinta fuuq-celinta ee u dhexeeya dhismayaasha qulqulaya waa la dhimaa, taas oo saameyn weyn ku leh fuuq-celinta bilowga ah ee sibidhka CSA ee la beddelay. Sababtaas awgeed, heerka ugu sarreeya ee hawo-mareenka saddexaad ayaa dib u dhacay. Beddelka hooseeya ee HEMC-yada waxay leeyihiin nuugista biyaha daciif ah iyo waqti gaaban oo ficil ah, taasoo keentay in hore loo sii daayo biyaha adsorbent iyo fuuqbax dheeraad ah oo ah qaybo badan oo sibidh ah oo aan biyo lahayn. Xayeysiinta daciifka ah iyo nuugista biyuhu waxay leeyihiin saameyno kala duwan oo dib u dhac ah oo ku saabsan kala dirida fuuq-celinta iyo marxaladda isbeddelka ee sibidhka CSA, taasoo keentay kala duwanaanshaha horumarinta fuuq-celinta sibidhka ee marxaladda dambe ee CE.
2.2 Falanqaynta alaabta fuuq-celinta
2.2.1 Saamaynta maadada CE ee alaabta fuuq-celinta
Beddel qalooca TG DTG ee CSA-biyoodka adigoo isticmaalaya nuxur kala duwan oo L HEMC ah; Waxa ku jira ww biyaha kiimikaad ku xidhan iyo alaabada fuuq-celinta AFt iyo AH3 wAFt iyo wAH3 ayaa loo xisaabiyay iyadoo loo eegayo qalooca TG. Natiijooyinka la xisaabiyay waxay muujiyeen in qalooca DTG ee koollada sibidhka ee CSA ee saafiga ah ay muujiyeen saddexda ugu sarreysa ee 50 ~ 180 ℃, 230 ~ 300 ℃ iyo 642 ~ 975 ℃. U dhiganta AFt, AH3 iyo burburka dolomite, siday u kala horreeyaan. Marka la joogo fuuq-baxa 2.0 h, qalooca TG ee L HEMC ee CSA slurry la beddelay way ka duwan yihiin. Marka falcelinta fuuq-celinta ay gaarto 12.0 saac, ma jiro farqi weyn oo u dhexeeya qaloocayada. Marka la joogo fuuq-celinta 2.0h, maadada kiimikada ku xidhan ee wL = 0%, 0.1%, 0.5% L HEMC wax ka beddelka koollada CSA waxay ahayd 14.9%, 16.2%, 17.0%, iyo AFt content wuxuu ahaa 32.8%, 35.2%, 36.7%, siday u kala horreeyaan. Waxyaabaha ku jira AH3 waxay ahaayeen 3.1%, 3.5% iyo 3.7%, siday u kala horreeyaan, taas oo muujinaysa in isku-darka L HEMC ay hagaajisay heerka fuuq-celinta ee fuuq-celinta sibidhka ee 2.0 h, waxayna kordhisay wax soo saarka alaabta fuuq-celinta AFt iyo AH3, taas oo ah, kor loo qaaday fuuq-celinta sibidhka CSA. Tani waxay noqon kartaa sababtoo ah HEMC waxay ka kooban tahay kooxda hydrophobic methyl iyo hydrophilic group hydroxyethyl, kuwaas oo leh dhaqdhaqaaqa sare ee dusha sare waxayna si weyn u yareeyn kartaa xiisadda dusha sare ee wajiga dareeraha ee dareeraha sibidhka. Isla mar ahaantaana, waxay leedahay saameynta hawo-gelinta hawada si loo fududeeyo soo saarista alaabta fuuq-celinta sibidhka. Saacada 12.0 ee fuuq-baxa, AFt iyo AH3 waxa ku jira L HEMC wax ka beddelka dareeraha sibidhka ee CSA iyo dareeraha sibidhka CSA ee saafiga ah ma lahayn farqi weyn.
2.2.2 Saamaynta beddelka CE iyo heerka beddelkooda ee alaabta fuuq-celinta
Qalooca TG DTG ee CSA cement slurry oo lagu beddelay saddex CE (waxa ku jira CE waa 0.5%); Natiijooyinka xisaabinta u dhigma ee ww, wAFt iyo wAH3 waa sida soo socota: fuuq-celinta 2.0 iyo 4.0 h, qalooca TG ee kala duwanaanta sibidhka ayaa si weyn u kala duwan. Marka fuuq-celinta gaadho 12.0 h, qalooca TG ee dareeraha sibidhka ee kala duwan ma laha farqi weyn. Marka la joogo 2.0 h fuuq-baxa, maadada biyaha kiimikaad ku xidhan ee saafiga ah ee CSA cement slurry iyo HEC, L HEMC, H HEMC ee CSA sibidhka wax laga beddelay waa 14.9%, 15.2%, 17.0%, 14.1%, siday u kala horreeyaan. Saacadda 4.0 ee fuuq-baxa, qalooca TG ee dareeraha sibidhka ee CSA ee saafiga ah ayaa hoos u dhacay ugu yaraan. Darajada fuuq-celinta ee saddexda CE ee wax-ka-beddelka slurries ee CSA waxay ka weyn tahay tan saafiga ah ee CSA slurries, iyo waxa ku jira biyaha kiimikaad ku xidhan ee HEMC wax ka beddelka slurries CSA ayaa ka weyn ta HEC wax ka beddelka slurries CSA. L HEMC waxay wax ka beddeshay CSA cement slurry kiimikaad ku xidhaysa biyaha waxa ugu wayn. Gebagebadii, CE oo leh beddelaadyo kala duwan iyo darajo beddelka ayaa farqi weyn u leh wax soo saarka fuuq-celinta bilowga ah ee sibidhka CSA, iyo L-HEMC waxay leedahay saamaynta dhiirrigelinta ugu weyn ee samaynta alaabada fuuq-celinta. Marka la joogo 12.0 h fuuq-baxa, ma jirin farqi weyn oo u dhexeeya heerka khasaaraha ballaaran ee saddexda CE wax laga beddelay sibidhka CSA iyo kan saafiga ah ee CSA cement slurps, kaas oo waafaqsan natiijooyinka sii daynta kulaylka isugeynta, taas oo muujinaysa in CE kaliya ay si weyn u saamaysay fuuq-celinta CSA sibidhka gudaha 12.0 saac
Waxa kale oo la arki karaa in AFt iyo AH3 sifada ugu saraysa ee L HEMC wax ka beddelka CSA slurry ay yihiin kuwa ugu weyn fuuq-celinta 2.0 iyo 4.0 h. AFt content ee saafiga ah CSA slurry iyo HEC, L HEMC, H HEMC wax ka beddelka CSA slurry ahaayeen 32.8%, 33.3%, 36.7% iyo 31.0%, siday u kala horreeyaan, at 2.0h fuuqbaxa. AH3 waxay ku jirtay 3.1%, 3.0%, 3.6% iyo 2.7%, siday u kala horreeyaan. 4.0 h ee fuuq-baxa, maadada AFt waxay ahayd 34.9%, 37.1%, 41.5% and 39.4%, iyo AH3 content wuxuu ahaa 3.3%, 3.5%, 4.1% and 3.6%, siday u kala horreeyaan. Waxaa la arki karaa in L HEMC ay leedahay saamaynta ugu xoogan ee kor u qaadida samaynta alaabada fuuq-celinta ee sibidhka CSA, iyo saamaynta kor u qaadida ee HEMC ayaa ka xoog badan kan HEC. Marka la barbar dhigo L-HEMC, H-HEMC waxay si aad ah u wanaajisay viscosity fir-fircoon ee xalka daloolka, sidaas darteed saameynaya gaadiidka biyaha, taasoo keentay hoos u dhac ku yimid heerka dhexgalka slurry, oo saameeya wax soo saarka fuuq-celinta waqtigan. Marka la barbar dhigo HEMC-yada, saamaynta isku xidhka hydrogen ee molecules HEC aad ayay u caddahay, iyo saamaynta nuugista biyuhu way ka xoog badan tahay oo waarta. Waqtigan xaadirka ah, saamaynta nuugista biyaha ee labadaba beddelka sare ee HEMC-yada iyo HEMC-yada beddelka hoose ma cadda hadda. Intaa waxaa dheer, CE waxay samaysaa "loop xiran" oo ah gaadiidka biyaha ee aagga-yar ee gudaha slurry sibidhka, iyo biyaha si tartiib ah u sii daayo CE waxay si toos ah uga falcelin karaan qaybaha sibidhka ee ku wareegsan. Saacada 12.0 ee fuuq-baxa, saamaynta CE ee AFt iyo AH3 ee soo saarista sibidhka CSA ma ahayn wax muhiim ah.

3. Gabagabo
(1) Fuuq-celinta sulfoaluminate (CSA) ee dhoobada 45.0 min ~ 10.0 h waxaa lagu horumarin karaa qiyaaso kala duwan oo ah hydroxyethyl methyl fibrin (L HEMC).
(2) Hydroxyethyl cellulose (HEC), beddelka sare ee hydroxyethyl methyl cellulose (H HEMC), L HEMC HEMC, saddexdan hydroxyethyl cellulose ether (CE) waxay daahiyeen kala dirida iyo heerka beddelka ee CSA fuuq-celinta sibidhka, waxayna kor u qaadeen fuuq-celinta 2.0 ~ 10.0 saac
(3) Soo bandhigida methyl ee hydroxyethyl CE waxay si weyn u wanaajin kartaa saameynta ay ku leedahay fuuq-celinta sibidhka CSA ee 2.0 ~ 5.0 h, iyo saameynta horumarinta ee L HEMC ee fuuq-celinta sibidhka CSA ayaa ka xoog badan H HEMC.
(4) Marka nuxurka CE uu yahay 0.5%, qadarka AFt iyo AH3 ee ay soo saarto L HEMC wax ka beddelka CSA slurry ee fuuq-celinta 2.0 iyo 4.0 h ayaa ah kan ugu sarreeya, saameynta kor u qaadista fuuq-celinta ayaa ah tan ugu muhiimsan; H HEMC iyo HEC wax-ka-beddelka CSA slurries waxay soo saareen AFt iyo AH3 ka kooban ka kooban saafiga CSA slurries kaliya 4.0 h ee fuuqbaxa. Saacadda 12.0 ee fuuq-baxa, saamaynta 3 CE ee alaabta fuuq-celinta ee sibidhka CSA ma ahayn wax muhiim ah.