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 ukwakheka kwe-cellulose kuqukethe izibopho ze-hydroxyl ne-ether, i-athomu ye-oksijini eqenjini le-hydroxyl ne-ether lebhondi lihlotshaniswa ne-molecule yamanzi ukuze kwakheke amabhondi e-hydrogen, ukuze amanzi amahhala abe amanzi abophekile futhi aphenye amanzi, ngaleyo ndlela adlale indima yokugcina amanzi.
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 isixazululo esinamanzi sikhiqize kalula amabhamuza amaningi amancane avaliwe ngesikhathi sokuyaluza.
I-Gelatincity ye-cellulose ethers
Ngemva kokuba i-cellulose ether ichithekile odakeni, iqembu le-methoxy kanye neqembu le-hydroxypropyl eketangeni lamangqamuzana lizosebenzisana ne-calcium ne-aluminium ion ku-slurry ukuze kwakhiwe ijeli ye-viscous futhi igcwalise isikhala sikasimende, ithuthukise ukuminyana kodaka futhi idlale 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 kuthuthukise ukuhlangana kodaka, ukuze udaka lube ne-plasticity enhle nokuguquguquka, nokunciphisa ukubola kwe-mortar.
Isikhathi sokuthumela: Mar-12-2024