I-ether yeseliukugcinwa kwamanzi
Ukugcinwa kwamanzi kwe-mortar kubhekisa kubuchule be-mortar bokubamba nokutshixa amanzi. Okukhona i-viscosity ye-cellulose ether iphezulu, kokukhona ukugcinwa kwamanzi kuphezulu. Ngenxa yokuba isakhiwo se-cellulose siqulathe i-hydroxyl kunye ne-ether bond, iqela le-hydroxyl kunye ne-ether bond yee-athomu ze-oxygen kunye neemolekyuli zamanzi ukwenza i-hydrogen bond, ukuze amanzi akhululeke emanzini adibeneyo, ajikeleze amanzi, ukuze adlale indima yokugcina amanzi.
Ukunyibilika kwe-cellulose ether
1. I-ether ye-cellulose erhabaxa kulula ukuyisasaza emanzini ngaphandle kokudibana, kodwa izinga lokunyibilika licotha kakhulu. I-ether ye-cellulose engaphantsi kwe-60 mesh inyibilika emanzini kangangemizuzu engama-60.
2. Amasuntswana amancinci e-cellulose ether emanzini kulula ukuwasasaza kwaye awadibani, kwaye izinga lokunyibilika liphakathi. I-cellulose ether engaphezulu kwe-80 mesh inyibilike emanzini kangangemizuzu emi-3.
3. I-ether ye-cellulose ethambileyo kakhulu isasazeka ngokukhawuleza emanzini, inyibilike ngokukhawuleza kwaye yenze i-viscosity ekhawulezayo. I-ether ye-cellulose engaphezulu kwe-120 mesh inyibilika emanzini kangangemizuzwana eli-10-30.
Okukhona iinxalenye ze-cellulose ether zicolekile, kokukhona ukugcinwa kwamanzi kuphucuka, iinxalenye ezirhabaxa ze-cellulose ether kunye nomphezulu wokudibana kwamanzi zinyibilika ngoko nangoko kwaye zenze i-gel phenomenon. Iglue isonga izinto ukuze ithintele iimolekyuli zamanzi ukuba zingaqhubeki zingena. Ngamanye amaxesha, nokuba zixutywe ixesha elide, isisombululo asinakusasazwa ngokulinganayo kwaye sinyibilike, senza isisombululo esinodaka okanye i-agglomerate. Iinxalenye ezincinci ziyasasazeka kwaye zinyibilike ngoko nangoko xa zidibana namanzi ukuze zenze i-viscosity efanayo.
Ixabiso le-PH le-cellulose ether (ukucola okulibazisekileyo okanye amandla okuqala)
Ixabiso le-PH labavelisi be-cellulose ether ekhaya nakwamanye amazwe lilawulwa ngokusisiseko malunga ne-7, eyi-asidi. Ngenxa yokuba kusekho isakhiwo se-glucose ring eninzi eyomileyo kwisakhiwo se-molecular se-cellulose ether, i-glucose ring eyomileyo lelona qela liphambili elibangela ukulibaziseka kwesamente. I-glucose ring eyomileyo ingenza i-calcium ions kwisisombululo se-samente hydration solution form sugar calcium molecular compounds, inciphise uxinzelelo lwe-calcium ion kwixesha lokungeniswa kwe-samente hydration, ithintele ukwakheka kunye nokuna kwe-calcium hydroxide kunye neekristale zetyuwa ye-calcium, ngaloo ndlela ilibazisa inkqubo ye-samente hydration. Ukuba ixabiso le-PH liba yimeko ye-alkaline, i-mortar iya kubonakala imeko yamandla okuqala. Ngoku uninzi lweefektri zilungisa ixabiso le-PH zisebenzisa i-sodium carbonate, i-sodium carbonate luhlobo lwe-arhente ekhawulezayo, i-sodium carbonate inokuphucula ukusebenza komphezulu we-samente particle, ikhuthaza ukuhlanganiswa phakathi kwamasuntswana kunyuke, iphucule ngakumbi i-viscosity ye-slurry, i-mortar kunye ne-sodium carbonate kunye ne-calcium ion compound ngokukhawuleza, ikhuthaze ukwakheka kwe-ettringite, i-samente condensation ngokukhawuleza. Ke ngoko, ixabiso le-PH kufuneka lilungiswe ngokweeklayenti ezahlukeneyo kwinkqubo yokuvelisa yokwenyani.
Ukufakelwa kwegesi ye-ether yeseli
Umoya ongeniswa yi-cellulose ether kungenxa yokuba i-cellulose ether nayo ikwayi-surfactant, umsebenzi we-interface ye-cellulose ether uyenzeka kakhulu kwi-interface yegesi-ulwelo-eqinileyo, eyokuqala kukungeniswa kwamaqamza, kulandele ukusasazeka kunye nokumanzisa. I-Cellulose ether iqulethe iqela le-alkyl, inciphisa kakhulu uxinzelelo lomphezulu kunye namandla e-interfacial yamanzi, isisombululo samanzi kwinkqubo yokushukuma kulula ukuvelisa amaqamza amaninzi amancinci avaliweyo.
Ukuhlanganiswa kwe-cellulose ether
I-Cellulose ether enyibilikiswe kwi-mortar ngenxa ye-molecular chain yayo ye-methoxy kunye ne-hydroxypropyl group kwi-slurry ene-calcium ions kunye ne-aluminium ions ekwakhiweni kwe-viscous gel kwaye izaliswe kwi-samente mortar gap, iphucula uxinano lwe-mortar, idlala indima yokuzalisa okuguquguqukayo kunye nokuqinisa. Nangona kunjalo, xa i-composite matrix icinezelwe, i-polymer ayinakudlala inkxaso eqinileyo, ngoko ke amandla kunye nomlinganiselo wokucinezelwa kwe-mortar uyancipha.
Ukwenziwa kwefilimui-cellulose ether
Ifilimu encinci yelatex yenziwa phakathi kwe-cellulose ether kunye namasuntswana esamente emva kokufuma. Ifilimu inesiphumo sokutywina kwaye iphucula imeko yokomisa komphezulu we-mortar. Ngenxa yokuba i-cellulose ether inokugcinwa kakuhle kwamanzi, gcina iimolekyuli zamanzi ezaneleyo ngaphakathi kwe-mortar, ngaloo ndlela iqinisekisa amandla okufuma kunye nokuqina kwesamente kwaye iphuhliswe ngokupheleleyo, iphucule amandla okubopha kwe-mortar, kwangaxeshanye iphucule ukunamathela kwe-mortar yesamente, i-mortar ine-plasticity kunye nokuqina okuhle, inciphise ukuguquguquka kwe-mortar.
Ixesha leposi: Epreli-26-2024