Ngesikhathi sokumba, ukumba kanye nokusebenza kabusha kukawoyela negesi yemvelo, udonga lomthombo luvame ukulahlekelwa amanzi, okubangela izinguquko kububanzi bomthombo kanye nokuwa, ukuze iphrojekthi ingakwazi ukwenziwa ngendlela evamile, noma ngisho nokushiywa phakathi nendawo. Ngakho-ke, kubalulekile ukulungisa amapharamitha angokoqobo odaka lokumba ngokwezinguquko ezimweni zejiyoloji zesifunda ngasinye, njengokujula komthombo, izinga lokushisa, kanye nobukhulu. I-CMC ingumkhiqizo ongcono kakhulu ongalungisa la mapharamitha angokoqobo. Imisebenzi yayo eyinhloko yile:
Udaka oluqukethe i-CMC lungenza udonga lomthombo lube yikhekhe lokuhlunga elincane, eliqinile nelingangeni kakhulu, elingavimbela ukumuncwa kwe-shale, livimbele ukubhoboza izingcezu ekuhlakazekeni, futhi linciphise ukubhidlika kodonga lomthombo.
Udaka oluqukethe i-CMC luhlobo lwe-ejenti yokulawula ukulahlekelwa koketshezi esebenza kahle kakhulu, lungalawula ukulahleka kwamanzi ngezinga elingcono ngomthamo ophansi (0.3-0.5%), futhi ngeke lubangele imiphumela emibi kwezinye izakhiwo zodaka, njengokuthamba okuphezulu kakhulu noma amandla okucheba.
Udaka oluqukethe i-CMC lungamelana nokushisa okuphezulu, futhi ngokuvamile lungasetshenziswa endaweni enokushisa okuphezulu okungaba ngu-140°C, njengemikhiqizo yokufaka esikhundleni esiphezulu kanye ne-viscosity ephezulu, lungasetshenziswa endaweni enokushisa okuphezulu okungu-150-170°C.
Udaka oluqukethe i-CMC luyamelana nosawoti. Izici ze-CMC maqondana nokumelana nosawoti yilezi: hhayi nje kuphela ukuthi ingagcina ikhono elihle lokunciphisa ukulahleka kwamanzi ngaphansi kokuhlushwa okuthile kukasawoti, kodwa futhi ingagcina isici esithile se-rheological, esinoshintsho oluncane uma kuqhathaniswa naleyo esendaweni enamanzi ahlanzekile; kokubili ingasetshenziswa oketshezini lokubhoboza olungenabumba kanye nodaka endaweni enamanzi anosawoti. Amanye amanzi okubhoboza asengamelana nosawoti, futhi izakhiwo ze-rheological azishintshi kakhulu. Ngaphansi kokuhlushwa kukasawoti okungu-4% kanye namanzi ahlanzekile, isilinganiso sokushintsha kwe-viscosity se-CMC engamelana nosawoti sinyuswe saba ngaphezu kwe-1, okungukuthi, i-viscosity ayikwazi ukushintshwa endaweni enosawoti omningi.
Udaka oluqukethe i-CMC lungalawula i-rheology yodaka.I-CMCakugcini nje ngokunciphisa ukulahleka kwamanzi, kodwa futhi kwandisa ukuchachamba.
1. Udaka oluqukethe i-CMC lungenza udonga lomthombo lube yikhekhe lokuhlunga elincane, eliqinile nelingangeni kakhulu, okunciphisa ukulahleka kwamanzi. Ngemva kokufaka i-CMC odakeni, umshini wokubhoboza ungaba namandla amancane okuqala okusika, ukuze udaka lukwazi ukukhulula kalula igesi eboshwe kulo, futhi ngesikhathi esifanayo, udoti ungalahlwa ngokushesha emgodini wodaka.
2. Njengezinye izinto zokuhlakazeka ezilengayo, udaka lokubhoboza lunesikhathi esithile sokuhlala eshalofini. Ukwengeza i-CMC kungayenza izinze futhi kwandise isikhathi sokuhlala eshalofini.
3. Udaka oluqukethe i-CMC aluvamile ukuthintwa yisikhunta, futhi asikho isidingo sokugcina inani le-pH ephezulu nokusebenzisa izilondolozi.
4. Udaka oluqukethe i-CMC luzinzile futhi lunganciphisa ukulahleka kwamanzi noma ngabe izinga lokushisa lingaphezu kwama-degrees angu-150.
Isikhathi sokuthunyelwe: Jan-09-2023