Kwi-mortar eyomileyo, i-cellulose ether sisongezelelo esiphambili esinokuphucula kakhulu ukusebenza kwe-mortar emanzi kwaye sichaphazele ukusebenza kwe-mortar. I-Methyl cellulose ether idlala indima yokugcina amanzi, ukuqina, kunye nokuphucula ukusebenza kwesakhiwo. Ukusebenza kakuhle kokugcinwa kwamanzi kuqinisekisa ukuba i-mortar ayizukubangela ukutyibilika, umgubo kunye nokunciphisa amandla ngenxa yokunqongophala kwamanzi kunye nokufuma kwesamente okungaphelelanga; isiphumo sokuqina Amandla esakhiwo se-mortar emanzi ayanda kakhulu, kwaye ukongezwa kwe-methyl cellulose ether kunokuphucula kakhulu i-viscosity emanzi ye-mortar emanzi, kwaye kunamathela kakuhle kwiindawo ezahlukeneyo, ngaloo ndlela kuphucula ukusebenza kwe-mortar emanzi eludongeni kwaye kuncitshiswe inkunkuma; ukongeza, ezahlukeneyo Indima ye-cellulose kwiimveliso nayo yahlukile, umzekelo: i-cellulose kwi-adhesives zethayile inokunyusa ixesha lokuvula kwaye ilungise ixesha; i-cellulose kwi-mortar yokutshiza ngoomatshini inokuphucula amandla esakhiwo se-mortar emanzi; ekuzilinganiseni, i-cellulose idlala indima ekuthinteleni ukuhlala, ukuHlukana kunye nokuHlukana.
Ukuveliswa kwe-cellulose ether kwenziwa kakhulu ngeefayibha zendalo ngokusebenzisa i-alkali dissolving, i-grafting reaction (etherification), ukuhlamba, ukomisa, ukugaya nezinye iinkqubo. Izinto eziphambili zefayibha zendalo zingahlulwa zibe: ifayibha yekotoni, ifayibha yecedar, ifayibha yebeech, njl. Ubungakanani bazo be-polymerization buhlukile, nto leyo eya kuchaphazela i-viscosity yokugqibela yeemveliso zabo. Okwangoku, abavelisi abakhulu be-cellulose basebenzisa ifayibha yekotoni (imveliso ye-nitrocellulose) njengezinto eziphambili ze-green. Ii-Cellulose ethers zingahlulwa zibe yi-ionic kunye ne-non-ionic. Uhlobo lwe-ionic lubandakanya ikakhulu ityuwa ye-carboxymethyl cellulose, kwaye uhlobo olungeyo-ionic lubandakanya ikakhulu i-methyl cellulose, i-methyl hydroxyethyl (propyl) cellulose, kunye ne-hydroxyethyl cellulose. I-Su njalo njalo. Kwi-dry powder mortar, kuba i-ionic cellulose (ityuwa ye-carboxymethyl cellulose) ayizinzanga xa kukho i-calcium ions, ayisetyenziswa rhoqo kwiimveliso ze-dry powder ezifana ne-cement slaked lime njengezinto ze-cementitious.
Ukugcinwa kwamanzi kwi-cellulose kukwanxulumene nobushushu obusetyenziswayo. Ukugcinwa kwamanzi kwi-methyl cellulose ether kuncipha ngokonyuka kobushushu. Umzekelo, ehlotyeni, xa kukho ilanga, i-wall putty yangaphandle iyafakwa iplasta, nto leyo edla ngokukhawulezisa ukuqiniswa kwesamente kunye nodaka. Ukuqina kunye nokwehla kwezinga lokugcina amanzi kukhokelela kwimvakalelo ecacileyo yokuba ukusebenza kolwakhiwo kunye nokusebenza kokulwa nokuqhekeka kuyachaphazeleka. Kule meko, kubaluleke kakhulu ukunciphisa impembelelo yezinto zobushushu. Ngamanye amaxesha ayinakuhlangabezana neemfuno zokusetyenziswa. Ezinye iindlela zonyango zenziwa kwi-cellulose, njengokunyusa izinga le-etherification, njl.njl., ukuze isiphumo sokugcina amanzi siqhubeke sinokugcina isiphumo esingcono kubushushu obuphezulu.
Ukugcinwa kwamanzi kwe-cellulose: Izinto eziphambili ezichaphazela ukugcinwa kwamanzi kwe-mortar ziquka ubungakanani be-cellulose eyongeziweyo, i-viscosity ye-cellulose, ubuncinci be-cellulose, kunye nobushushu bendawo yokusebenza.
Ukuqina kwe-cellulose: Ngokubanzi, okukhona i-viscosity iphezulu, kokukhona isiphumo sokugcina amanzi singcono, kodwa okukhona i-viscosity iphezulu, ubunzima be-molecular ye-cellulose buphezulu, kunye nokuncipha kokunyibilika kwayo, okunempembelelo embi ekusebenzeni kolwakhiwo kunye namandla e-mortar. Okukhona i-viscosity iphezulu, kokukhona isiphumo sokuqina sibonakala ngakumbi kwi-mortar, kodwa ayilingani ngokuthe ngqo. Okukhona i-viscosity iphezulu, kokukhona i-mortar emanzi iya kuba krakra ngakumbi. Ngexesha lokwakhiwa, iya kunamathela kwi-scraper kwaye inamathele kakhulu kwi-substrate, kodwa ayizukunceda kakhulu ukwandisa amandla olwakhiwo lwe-mortar emanzi ngokwayo, kwaye ukusebenza okuchasene nokuhla akuyi kubonakala ngexesha lokwakhiwa.
Ubunono be-cellulose: Ubunono buchaphazela ukunyibilika kwe-cellulose ether. I-cellulose ecoarse idla ngokuba yi-granular kwaye isasazeka lula emanzini ngaphandle kokuhlanganiswa, kodwa izinga lokunyibilika licotha kakhulu. Ayifanelekanga ukusetyenziswa kwi-dry powder mortar. Eveliswa ekhaya. Ezinye ze-cellulose ziyanyibilika, akulula ukuzisasaza nokuzinyibilikisa emanzini, kwaye kulula ukuzihlanganisa. Yi-powder encinci ngokwaneleyo kuphela enokuthintela ukuxinana kwe-methyl cellulose ether xa wongeza amanzi kwaye uxuba. Kodwa i-cellulose ether etyebileyo ayichithi nje kuphela kodwa ikwanciphisa amandla engingqi ye-mortar. Xa i-dry powder mortar enjalo yakhiwe kwindawo enkulu, isantya sokunyibilika kwe-mortar yendawo siyancitshiswa ngokucacileyo, kwaye kuvela imifantu ngenxa yamaxesha ahlukeneyo okunyibilika. Ngenxa yexesha elifutshane lokuxuba, i-mortar enokwakhiwa koomatshini ifuna ubunono obuphezulu.
Ixesha lokuthumela: Februwari-13-2023