Ukugcinwa kwamanzi kwei-cellulose ethers
Ukugcinwa kwamanzi kodaka kubhekisela emandleni odaka ukugcina nokukhiya umswakama.Ukuphakama kwe-viscosity ye-cellulose ether, kuba ngcono ukugcinwa kwamanzi.Ngenxa yokuthi isakhiwo se-cellulose siqukethe izibopho ze-hydroxyl ne-ether, i-athomu ye-oksijini eqenjini le-hydroxyl ne-ether bond lihlotshaniswa ne-molecule yamanzi ukuze yakhe izibopho ze-hydrogen, ukuze amanzi akhululekile abe amanzi abophekile futhi aphenye amanzi, ngaleyo ndlela adlale indima yamanzi. ukugcinwa.
Ukuncibilika kwei-cellulose ether
1. I-coarser cellulose ether ihlakazeka kalula emanzini ngaphandle kwe-agglomeration, kodwa izinga lokuchithwa lihamba kancane kakhulu.Ama-cellulose ethersngaphansi kwama-mesh angama-60 ancibilika emanzini cishe imizuzu engama-60.
2. Izinhlayiya ezinhle ze-cellulose ether zihlakazeka kalula emanzini ngaphandle kwe-agglomeration, futhi izinga lokuchithwa lilinganiselwe.Ngaphezu kwama-mesh angama-80i-cellulose etheriyancibilika emanzini cishe imizuzu emi-3.
3. I-ultra-fine cellulose ether ihlakazeka ngokushesha emanzini, incibilike ngokushesha, futhi yakhe i-viscosity esheshayo.Ngaphezu kwe-120 meshi-cellulose etherichithwa emanzini cishe imizuzwana engu-10-30.
Uma izinhlayiya ze-cellulose ether zicoleka, kuba ngcono ukugcinwa kwamanzi.Ubuso obumaholoholoI-Cellulose Ether HEMCiyancibilika ngokushesha ngemva kokuxhumana namanzi futhi yakha i-gel phenomenon.Iglue igoqa izinto ukuvimbela ama-molecule amanzi ukuthi angaqhubeki nokungena, futhi ngezinye izikhathi awakwazi ukuhlakazwa ngokulinganayo futhi ahlakazwe ngemva kwesikhathi eside sokuyaluza, enze isixazululo se-flocculent esine-turbidized noma i-caking.Izinhlayiya ezinhle zihlakazeka ngokushesha futhi zihlakaze ngokuthintana namanzi ukuze zenze i-viscosity efanayo.
Ukungena kwe-cellulose ether
Ukungena komoya kwe-cellulose ether kungenxa yokuthi i-cellulose ether nayo iwuhlobo lwe-surfactant, futhi umsebenzi wokuhlangana kobuso be-cellulose ether wenziwa ikakhulukazi esixhumi esibonakalayo esiqinile se-gas-liquid, okokuqala ngokwethula amabhamuza, kulandele ukuhlakazeka nokumanzisa.Ama-cellulose ethers aqukethe amaqembu e-alkyl, anciphisa ngokuphawulekayo ukungezwani kwendawo kanye namandla ahlangene ebusweni bamanzi, okwenza isisombululo esinamanzi sikhiqize kalula amabhamuza amaningi amancane avaliwe ngesikhathi sokuyaluza.
I-Gelatincity ye-cellulose ethers
Ngemuva kokuthi i-cellulose ether isincibilikisiwe odakeni, iqembu le-methoxy neqembu le-hydroxypropyl echungechungeni lamangqamuzana lizosebenzisana ne-calcium ne-aluminium ion ku-slurry ukwenza ijeli ye-viscous futhi igcwalise isikhala sikasimende, ithuthukise ukuminyana udaka nokudlala indima yokugcwalisa okuguquguqukayo nokuqinisa.Kodwa-ke, lapho i-matrix eyinhlanganisela icindezelwa, i-polymer ayikwazi ukudlala indima eqinile yokusekela, ngakho-ke amandla nokugoqa isilinganiso sokugoqa kodaka.
Izinto zokwakha ifilimu ye-cellulose ether
Ifilimu elincanyana le-latex lakhiwa phakathi kwezinhlayiya ze-cellulose ne-cement ngemva kwe-hydration, enomthelela wokuvala futhi ithuthukise ukomiswa kodaka.Ngenxa yokugcinwa kwamanzi okuhle kwe-cellulose ether, ama-molecule amanzi anele agcinwa ngaphakathi kodaka, ukuze kuqinisekiswe ukugeleza nokuqiniswa kukasimende kanye nokuthuthukiswa okuphelele kwamandla, ukuthuthukisa amandla okubopha odaka, futhi kuthuthukiswe ukuqina. ukubumbana kodaka, ukuze udaka lube ne-plasticity enhle nokuguquguquka, futhi unciphise ukuguqulwa kwe-shrinkage yodaka.
Isikhathi sokuthumela: Mar-12-2024