I-Cellulose I-Teshers iwuhlobo lwama-organic polymer compounds aguqulwe ngamakhembu avela ku-cellulose yemvelo. Zivame ukusetshenziswa ezintweni zokwakha, ikakhulukazi ezintweni ezisetshenziselwa ukhula. Ithonya le-cellulose ether kwinqubo ye-Cement Hydration likhonjiswa ikakhulukazi ezintweni ezilandelayo: Ukuhanjiswa kwamanzi, ukugcinwa kwamanzi, nomthelela ekuthuthukiseni imikhiqizo ye-morphology.
1. Isingeniso ku-Conment Hydration
Inqubo ye-hydration ye-CEAND inguchungechunge lokuphendula okuyinkimbinkimbi ngokomzimba nangamakhemikhali phakathi kosimende namanzi. Lokhu kusabela kubangela ukunamathisela kosimende ukuze kukhiqizwe kancane kancane ukwakha isakhiwo esiqinile, ekugcineni kukhiqize imikhiqizo ye-hydration efana ne-calcium siliating hydrate (Csh) ne-calcium hydroxide (CH). Ngale nqubo, isilinganiso sokuphendula kwe-hydrate sokwenza usimende, uketshezi nokugcinwa kwamanzi kanye nokugcinwa kwamanzi kwemikhiqizo ye-hydration kuthinta ngqo amandla nokuqina kokhonkolo wokugcina.
2. Indlela yokwenza ye-Cellulose Afers
I-Cellulose Ether idlala indima ebalulekile yokulawula ngokomzimba nangamakhemikhali kwinqubo yesisindo se-hydration. I-Cellulose Ether ikakhulukazi ithinta inqubo ye-hydration ka usimende ngezindlela ezimbili: eyodwa ngokuthinta ukusatshalaliswa kanye nokuhanjiswa kwamanzi esikhungweni sikakhonkolo; Okunye ngokuthinta ukuhlakazwa kanye nokugqekeza kwezinhlayiya kasimende.
Ukulawulwa komswakama nokugcinwa kwamanzi
I-Cellulose Afers ingathuthukisa kakhulu ukugcinwa kwamanzi kwezinto zokwenziwa kokhonkolo. Ngenxa ye-hydrophility yayo eqinile, i-cellulose ether ingakha isixazululo esizinzile emanzini, esingadonsa futhi sigcine umswakama. Lokhu kuphatha amanzi kubalulekile ekunciphiseni imifantu ebangelwa ukulahleka kwamanzi okusheshayo ngokhonkolo ngesikhathi sokuqala. Ikakhulu ezindaweni ezomile noma izimo zokwakha eziphakeme, i-ether ye-cellulose ingavimba ngempumelelo amanzi ekuthobeni ngokushesha futhi aqinisekise ukuthi inani lamanzi esikhungweni sensimbi sekwanele ukusekela ukusabela okujwayelekile kwe-hydration.
I-Rhelogy nokuqina
I-Cellulose Afers nayo ingathuthukisa i-Rheology ka usimende Slurries. Ngemuva kokungeza i-cellulose ether, ukuguquguquka okuguquguqukayo kwe-slurry kasimende kuzokhuphuka kakhulu. Le nto ichazwa ikakhulukazi esakhiweni eside seketanga esisungulwe ngama-molecule e-cellulose ether emanzini. Le molecule ende ye-Tide ingakhawulela ukunyakaza kwezinhlayiya kasimende, ngaleyo ndlela kwandise ukubonwa kanye nokuvumelana kwe-slurry. Le mpahla ibaluleke kakhulu kwizicelo ezifana nokunamathela okunamathisela kanye nama-tile, njengoba kuvimbela udaka kasimende ukuthi ageleze ngokushesha kakhulu ngenkathi enikeza ukusebenza kokwakha okungcono.
Ukubambezela i-hydration futhi ulungise isikhathi sokusetha
I-Cellulose Ether ingabambezela ukusabela kwe-hydration ye-cents futhi yandise ukulungiswa kokuqala kanye nesikhathi sokugcina sokusetha sikasimende slurry. Lo mphumela wenzeka ngoba ama-molecule e-cellulose ether addworbed ebusweni bezinhlayiya zokwenza usimende, akha umgoqo ovimbela ukuxhumana ngqo phakathi kwamanzi kanye nokwenza u-homent, ngaleyo ndlela wehlise ukusabela kwe-hydrate. Ngokulibazisa ukusetha isikhathi, izithambiso ze-cellulose zingathuthukisa ukusebenza kokwakha, zinikeze abasebenzi bezokwakha isikhathi esiningi sokwenza ushintsho nokulungiswa.
3. Umphumela ngesimo semikhiqizo ye-Cement Hydration
Ukuba khona kwe-cellulose iziphathamandla kuthinta ne-miscructure yemikhiqizo ye-Cement Hydration. Ucwaningo luye lwabonisa ukuthi i-morphology ye-calcium bulium siliate hydrate (Csh) i-gel izoshintsha ngemuva kokungeza i-cellulose ether. Ama-molecule e-cellulose ether angathinta ukwakheka kwe-csh, okwenza kukhululeke ngokwengeziwe. Lesi sakhiwo esivulekile singanciphisa amandla okuqala ngezinga elithile, kodwa futhi kusiza ukuthuthukisa ubulukhuni bezinto ezibonakalayo.
I-Cellulose Tashers inganciphisa futhi ukwakheka kwe-etttringite ngesikhathi senqubo ye-hydration. Kusukela iselula kubuyisa izinga lokuphendula kwe-hydration, izinga lokuhlelwa kwe-ettringite ku-usimende lincishisiwe, ngaleyo ndlela linciphise ukucindezelwa kwangaphakathi okubangelwa ukwanda kwevolumu ngesikhathi senqubo yokwenza ivolumu.
4. Umphumela ekuthuthukisweni kwamandla
AbakwaCellulose Abathambekele futhi banomthelela omkhulu ekuthuthukisweni kwamandla kwezinto zokwenziwa ngosimende. Ngoba uCellulose Tather ugcina izinga le-hydration likasimende, ukuthuthukiswa kwamandla kokuqala kwama-pastes okhule kuvame ukwehla. Kodwa-ke, njengoba ukusabela kwe-hydration kuyaqhubeka, umphumela olawula ukugcinwa kwamanzi okugcinwa kwamanzi we-cellulose ether kanye ne-hydration mostshoology angavela kancane kancane, okuzosiza ukuthuthukisa amandla esiteji esizayo.
Kumele kwaziwe ukuthi inani elingeziwe nohlobo lwe-cellulose ether kunomthelela oyedwa ngamandla. Inani elifanele le-cellulose ether lingathuthukisa ukusebenza kokwakha futhi likhuphule amandla lakamuva, kepha ukusetshenziswa ngokweqile kungaholela ekwehleni kwamandla okuqala kwezinto zokwakha amasimende futhi kuthinte izakhiwo zokugcina zemishini. Ngakho-ke, kuzinhlelo zokusebenza ezisebenzayo, uhlobo kanye nomthamo we-cellulose ether kudinga ukwenziwa futhi kuklanyelwe ngokuya ngezidingo ezithile zobunjiniyela.
I-Cellulose Ether ithinta inqubo ye-hydration kanye nezinto ezibonakalayo zikasimende ngokwenza ngcono ukugcinwa kwamanzi kwezinto zokwakha amasimende, ukuguqula isilinganiso se-hydration, futhi kuthinte indlela yemikhiqizo ye-hydration. Yize i-cellulose izithambekela ingadala ukulahlekelwa amandla kusenesikhathi, ingathuthukisa ukuqina nokuqina kokhonkolo esikhathini eside. Ukungezwa kwe-cellulose ether kungathuthukisa kakhulu ukusebenza kokwakha, ikakhulukazi ezimweni zohlelo lokusebenza ezidinga izikhathi ezinde zokusebenza kanye nezidingo eziphakeme zokugcinwa kwamanzi. Inezinzuzo ezingenakufinyeleleka. Kuzinhlelo zokusebenza zobunjiniyela zangempela, ukukhethwa okuvumelekile kohlobo kanye nomthamo we-cellulose ether kungalinganisa amandla, ukusebenza kokwakha nokuqina kokuqina kwezinto ezibonakalayo.
Isikhathi sePosi: Sep-27-2024