I-Cellulose ether iyisengezo esikhulu odakeni oseluxubile. Izinhlobo nezici zesakhiwo se-cellulose ether ziyethulwa. Imiphumela ye-hypromellose ether HPMC ezimpahleni zodaka ihlolwa ngokuhlelekile. Imiphumela ibonisa ukuthi i-HPMC ingathuthukisa indawo yokubamba amanzi yodaka, inciphise okuqukethwe kwamanzi, inciphise ukuminyana kwengxube yodaka, yandise isikhathi sokumisa, futhi inciphise amandla okuguquguquka nokucindezela odaka. I-Mortar ingenye yezinto ezisetshenziswa kakhulu embonini yezokwakha. Ngokuthuthuka kwesayensi yezinto zokwakha kanye nesidingo sekhwalithi yokwakha, udaka seludume njengokhonkolo osulungile, seluthengiswa kancane kancane. Uma kuqhathaniswa nodaka olulungiselelwe ubuchwepheshe bendabuko, ukukhiqizwa kodaka kunezinzuzo eziningi: 1, izinga eliphezulu lomkhiqizo; 2, ukusebenza kahle komkhiqizo; I-3, ukungcoliswa kwemvelo okuncane, okulungele ukwakhiwa kwempucuko, okwamanje, kukhona i-Guangzhou, i-Shanghai, i-Beijing namanye amadolobha okugqugquzela udaka oluxubile, amazinga emboni ahlobene, amazinga kanye namazinga kazwelonke akhishiwe noma azokhishwa maduze. Umehluko omkhulu phakathi kodaka oseluxutshiwe kanye nodaka lwendabuko ukwengezwa kwengxube yamakhemikhali, lapho i-cellulose ether iyingxube yamakhemikhali esetshenziswa kakhulu. I-Cellulose ether ivamise ukusetshenziswa njenge-ejenti egcina amanzi ukuze kuthuthukiswe Ukusebenza kodaka oseluxubile. Ngakho-ke, kuyasiza ukukhetha nokusebenzisa i-cellulose ether ngendlela efanele nokuqinisekisa ukuzinza kokusebenza kodaka lukasimende ngokuqhubeka nokuqonda umthelela wohlobo lwe-cellulose ether nezici zesakhiwo ekusebenzeni kodaka lukasimende.
1. Uhlobo kanye nesakhiwo se-cellulose ether cellulose ether luhlobo lwe-polymer encibilikayo emanzini, yenziwe nge-cellulose yemvelo ngesisombululo se-alkali, ukusabela kokuxhunyelelwa (i-etherification) , ukugeza, ukomisa, ukugaya nezinye izinqubo. Ama-cellulose ether ahlukaniswa abe izinhlobo ze-ionic nezingezona i-ionic. I-Ionic cellulose inosawoti we-carboxymethyl cellulose, kuyilapho i-cellulose engeyona i-ionic ine-hydroxyethyl cellulose ethers, i-hydroxypropyl methyl cellulose ethers, i-Methyl cellulose ethers, njll. Ngenxa yokuthi i-ionic cellulose ether (carboxymethyl cellulose) ayizinzile uma kukhona i-calcium ion, ayivamisile ukusetshenziswa emikhiqizweni yempushana eyomile enezinto zikasimende ezifana nosimende ne-hydrated lime, ama-cellulose ether asetshenziswa odaka olomile ikakhulukazi ama-hydroxyethyl methyl cellulose ethers (HEMC). ) kanye ne-hydroxypropyl methyl cellulose ethers (HPMC) , isabelo sabo semakethe sidlula i-90% 2. Umphumela we-cellulose ether ezindaweni ze-cement mortars 1. I-ether ye-cellulose eluhlaza yokuhlola: ekhiqizwa ngu-Shandong Gomez Chemical Co., Ltd. i-viscosity: 75000; Usimende: usimende oyinhlanganisela yebanga lama-32.5; Isihlabathi: isihlabathi esiphakathi; I-Fly Ash: Ibanga lesi-II. Imiphumela yokuhlola engu-2 1. Umphumela wokunciphisa amanzi we-cellulose ether figure 2 uwubudlelwane phakathi kokuvumelana kodaka kanye nokuqukethwe kwe-cellulose ether ku-mix proportion efanayo, kancane kancane kwanda. Lapho i-0.3 ‰ ingeziwe, ukuhambisana kodaka kukhuphuka cishe ngo-50%, okubonisa ukuthi i-cellulose ether ingathuthukisa ukusebenza kodaka, ngokunyuka kokuqukethwe kwe-cellulose ether, inani lamanzi asetshenzisiwe lingancishiswa kancane kancane. . Kungacatshangwa ukuthi i-cellulose ether inomphumela othile wokunciphisa amanzi. 2. Udaka olubamba amanzi olubamba amanzi lusho ikhono lodaka lokubamba amanzi, futhi luyinkomba yokusebenza yokukala ukuzinza kodaka olusha lukasimende ngesikhathi sokuthutha kanye nokupaka. Ukugcinwa kwamanzi kodaka oseluxubile kungalinganiswa ngenkomba ye-Delamination nokugcinwa kwamanzi, kodwa akuzweli ngokwanele ukukhombisa umehluko ngenxa yokwengeza i-ejenti yokugcina amanzi. Ukuhlolwa kokugcinwa kwamanzi ukubala izinga lokugcinwa kwamanzi ngokulinganisa ukuguqulwa kwekhwalithi yephepha lokuhlunga ngaphambi nangemva kokuxhumana nendawo eshiwo yodaka esikhathini esithile. Ngenxa yokumuncwa kahle kwamanzi kwephepha lokuhlunga, ngisho noma ukugcinwa kwamanzi kodaka kuphezulu kakhulu, iphepha lokuhlunga lisengakwazi ukumunca amanzi odaka, ngakho izinga lokugcinwa kwamanzi lingabonisa ngokunembile ukugcinwa kwamanzi odaka, ukugcinwa kwamanzi kuphezulu. isilinganiso, kungcono ukugcina amanzi.
Isikhathi sokuthumela: Oct-30-2023