I-ether ye-cellulose iyona nto yokongeza kwi-mortar esele ixutywe.Iintlobo kunye neempawu zesakhiwo se-cellulose ether ziyaziswa.Iziphumo ze-hypromellose ether HPMC kwiipropati zodaka zifundwa ngokucwangcisiweyo.Iziphumo zibonisa ukuba i-HPMC inokuphucula ipropati yokubamba amanzi yodaka, ukunciphisa umthamo wamanzi, ukunciphisa ubuninzi bomxube wodaka, ukwandisa ixesha lokumisela, kunye nokunciphisa amandla okuguquguquka kunye nokunyanzeliswa kodaka.Udaka sesinye sezona zinto zisetyenziswa kakhulu kushishino lokwakha.Ngophuhliso lwesayensi yezixhobo kunye nemfuno yomgangatho wokwakha, udaka luye lwathandwa njengekhonkrithi esele luxutywe, luye lwathengiswa ngokuthe ngcembe.Xa kuthelekiswa nodaka olulungiselelwe iteknoloji yendabuko, ukuveliswa kwemveliso yodaka kuneenzuzo ezininzi: 1, umgangatho ophezulu wemveliso;2, ukusebenza kakuhle kwemveliso;I-3, ungcoliseko oluncinci lokusingqongileyo, olulungele ukwakhiwa kwempucuko, okwangoku, kukho i-Guangzhou, i-Shanghai, i-Beijing kunye nezinye izixeko zokukhuthaza udaka olulungelelanisiweyo, imigangatho yoshishino enxulumeneyo, imigangatho kunye nemigangatho yelizwe ikhutshwe okanye iya kukhutshwa kungekudala.Umahluko omkhulu phakathi kodaka olusele luxutywe kunye nodaka lwemveli kukongeza umxube wemichiza, apho i-cellulose ether ingumxube osetyenziswa ngokuqhelekileyo weekhemikhali.I-ether ye-Cellulose idla ngokusetyenziswa njenge-arhente yokugcina amanzi ukuphucula Ukusebenza kodaka oluxutywe ngokufanelekileyo.Ngoko ke, kuyanceda ukukhetha nokusebenzisa i-cellulose ether ngokuchanekileyo kunye nokuqinisekisa ukuzinza kokusebenza kodaka lwesamente ngokuqonda ngakumbi impembelelo yohlobo lwe-cellulose ether kunye neempawu zesakhiwo ekusebenzeni kodaka lwesamente.
1. Uhlobo kunye nesakhiwo se-cellulose ether cellulose ether luhlobo oluthile lwe-polymer e-soluble yamanzi, yenziwe nge-cellulose yendalo ngesisombululo se-alkali, i-grafting reaction (etherification) , ukuhlamba, ukomisa, ukugaya kunye nezinye iinkqubo.I-cellulose ethers ihlelwa kwiintlobo ze-ionic kunye ne-non-ionic.I-Ionic cellulose ine-carboxymethyl cellulose salts, ngelixa i-cellulose engekho i-ionic ine-hydroxyethyl cellulose ethers, i-hydroxypropyl methyl cellulose ethers, i-Methyl cellulose ethers, njl.Ngenxa yokuba i-ionic cellulose ether (i-carboxymethyl cellulose) ayizinzanga xa kukho i-calcium ion, ayifane isetyenziswe kwimveliso yomgubo owomileyo kunye nezixhobo zesamente ezifana nesamente kunye ne-hydrated lime, i-cellulose ethers esetyenziselwa udaka olomileyo ikakhulu yi-hydroxyethyl methyl cellulose ethers (HEMC). ) kunye ne-hydroxypropyl methyl cellulose ethers (HPMC), isabelo sabo semarike sidlula i-90% 2. Umphumo we-cellulose ether kwiipropati ze-sement mortars 1. I-ether ye-cellulose eluhlaza yokuvavanya: eveliswe nguShandong Gomez Chemical Co., Ltd. i-viscosity: 75000;Isamente: 32.5 yebakala lesamente ehlanganisiweyo;Isanti: isanti ephakathi;Fly Ash: Ibakala le-II.Iziphumo zovavanyo lwe-2 1. Umphumo wokunciphisa amanzi we-cellulose ether figure 2 ubudlelwane phakathi kokuhambelana komdaka kunye nomxholo we-cellulose ether kwi-mix mix proportion, ngokuthe ngcembe yanda.Xa i-0.3 ‰ yongezwa, ukuhambelana komdaka kwanda malunga ne-50%, ebonisa ukuba i-cellulose ether inokuphucula ukusebenza kodaka, ngokunyuka komxholo we-cellulose ether, inani lamanzi asetyenziswayo lingancitshiswa ngokuthe ngcembe. .Inokuqwalaselwa ukuba i-cellulose ether inefuthe elithile lokunciphisa amanzi.2. Udaka olubamba amanzi olugcina amanzi lubhekiselele kwisakhono sodaka ukubamba amanzi, kwaye ikwasisalathiso sokusebenza sokulinganisa ukuzinza kodaka lwesamente esitsha ngexesha lothutho kunye nokupaka.Ukugcinwa kwamanzi omdaka olungelelanisiweyo kunokulinganiswa ngesalathiso se-Delamination kunye nokugcinwa kwamanzi, kodwa akukhathaleli ngokwaneleyo ukubonakalisa umahluko ngenxa yokongeza i-arhente yokugcina amanzi.Uvavanyo lokugcinwa kwamanzi kukubala izinga lokugcinwa kwamanzi ngokulinganisa ukuguqulwa komgangatho wephepha lokucoca ngaphambi nangemva kokuqhagamshelana nommandla ochaziweyo wodaka kwixesha elithile.Ngenxa yokufunxwa kakuhle kwamanzi kwephepha lokucoca, nokuba ukugcinwa kwamanzi kudaka kuphezulu kakhulu, iphepha lokucoca lisenokuwafunxa amanzi odaka, ngoko ke izinga lokugcinwa kwamanzi linokubonisa ngokuchanekileyo ukugcinwa kwamanzi odaka, kokukhona ukugcinwa kwamanzi kuphezulu. izinga, ngcono ukugcinwa kwamanzi.
Ixesha lokuposa: Oct-30-2023