I-viscosity ephezuluCMCngumgubo omhlophe okanye ubisi omhlophe okanye iigranules, kunye nobuninzi be-0.5-0.7 g/cm3, phantse ayinavumba, ayinancasa, kwaye i-hygroscopic. Ukusasazwa ngokulula emanzini ukwenza isisombululo se-colloidal esicacileyo, esinganyibilikiyo kwizinyibilikisi zezinto eziphilayo ezifana ne-ethanol. I-pH ye-1% yesisombululo se-aqueous yi-6.5 ukuya kwi-8.5. Xa i-pH i> 10 okanye <5, i-viscosity yeglue iya kuncitshiswa kakhulu, kwaye ukusebenza kuya kuba yinto engcono kakhulu xa i-pH i-7. I-degree of CMC substitution ichaphazela ngokuthe ngqo ukunyibilika, i-emulsification, kunye nokuphucula i-CMC. Ukuhambelana, ukuzinza, ukuxhathisa i-asidi kunye nokuxhathisa ityuwa kunye nezinye iimpawu.
Ngokuqhelekileyo kukholelwa ukuba xa i-degree of substitution ijikeleze i-0.6-0.7, ukusebenza kwe-emulsifying kungcono, kwaye ngokunyuka kweqondo lokutshintshwa, ezinye iipropati ziphuculwa ngokufanelekileyo. Xa iqondo lokutshintshwa lingaphezulu kwe-0.8, ukuxhathisa kwayo kwe-asidi kunye nokumelana netyuwa kuphuculwe kakhulu. .
Ezona zalathisi ziphambili zokulinganisa umgangatho we-CMC sisidanga sokutshintshwa (DS) kunye nobunyulu. Ngokubanzi, iimpawu ze-CMC zahlukile ukuba i-DS yahlukile; iqondo eliphezulu lokutshintshwa, lomelele ukunyibilika, kwaye ngcono ukungafihli kunye nokuzinza kwesisombululo. Ngokutsho kweengxelo, ukucaca kwe-CMC kungcono xa i-degree of substitution i-0.7-1.2, kunye ne-viscosity yesisombululo sayo samanzi sikhulu xa ixabiso le-pH li-6-9.
Umgangatho weemveliso ezigqityiweyo zeCMC ikakhulu zixhomekeke kwisisombululo semveliso. Ukuba isisombululo semveliso sicacile, kukho iinqununu ezimbalwa ze-gel, iifayili zamahhala, kunye namabala amnyama okungcola, ngokuqinisekileyo kuqinisekiswa ukuba umgangatho we-CMC ulungile. Ukuba isisombululo sishiywe iintsuku ezimbalwa, isisombululo asibonakali. Imhlophe okanye i-turbid, kodwa icace kakhulu, leyo yimveliso engcono!
1. Intshayelelo emfutshane yomgangatho ophezulu we-viscosity yobuchwephesha beCMC kunye nenqanaba elisezantsi le-viscosity yobuchule yeCMC yolwelo lokomba ioyile.
1. Udaka lwe-CMC lunokwenza udonga lwequla lube yikeyiki ebhityileyo kwaye eqinile yokuhluza kunye nokungena okuncinci, ukunciphisa ilahleko yamanzi.
2. Emva kokongeza i-CMC eludakeni, i-drilling rig inokufumana amandla okucheba aphantsi okuqala, ukwenzela ukuba udaka lukwazi ukukhulula lula igesi ehlanganiswe kuyo, kwaye kwangaxeshanye, i-debris ingalahlwa ngokukhawuleza emgodini wodaka.
3. Ukugrumba udaka, njengezinye ii-suspension kunye ne-dispersions, kunobomi obuthile beshelufu. Ukongeza i-CMC ingayenza izinze kwaye yandise ubomi beshelufu.
4. Udaka oluqukethe i-CMC alufane luchaphazeleke ngumbumba, ngoko akuyomfuneko ukugcina ixabiso eliphezulu le-pH kunye nokusebenzisa izilondolozo.
5. Iqulethe i-CMC njenge-arhente yonyango yokwemba ulwelo lokugungxulwa ngodaka, olunokuxhathisa ukungcoliseka kweetyuwa ezahlukeneyo ezinyibilikayo.
6. Udaka oluqulathe i-CMC lunozinzo oluhle kwaye lunokunciphisa ilahleko yamanzi nokuba ubushushu bungaphezu kwe-150°C.
Amagqabantshintshi: I-CMC ene-viscosity ephezulu kunye neqondo eliphezulu lokutshintshela lilungele udaka olunoxinano oluphantsi, kunye ne-CMC ene-viscosity ephantsi kunye neqondo eliphezulu lokutshintshela lilungele udaka olunoxinano oluphezulu. Ukhetho lweCMC kufuneka lumiselwe ngokweemeko ezahlukeneyo ezifana nodidi lodaka, ummandla, kunye nobunzulu bequla.
Isicelo esiphambili: I-MB-CMC3 idlala indima yokuphakamisa kunye nokwehlisela ilahleko yamanzi kunye nokunyuswa kwe-viscosity kulwelo lokomba, ulwelo lwesamente kunye nolwelo oluqhekezayo, ukuze kufezekiswe imisebenzi yokukhusela udonga, ukusika ukusika, ukukhusela i-drill bit, ukuthintela ukulahleka kodaka kunye nokwanda. isantya sokomba. Yongeza ngokuthe ngqo okanye uyenze ibe yiglue kwaye uyifake edakeni, yongeza i-0.1-0.3% kwi-slurry yamanzi ahlambulukileyo, kwaye ungeze i-0.5-0.8% kwi-slurry yamanzi etyuwa.
2. Ukusetyenziswa kwe-CMC kwishishini lokugquma
Injongo ephambili:
Njenge-stabilizer, inokuthintela isambatho ekuhlukaneni ngenxa yokutshintsha okubukhali kwiqondo lokushisa.
Njengomthathisi, inokwenza imeko yengubo yokwaleka, ifezekise indawo efanelekileyo yokugcina kunye ne-viscosity yokwakha, kwaye inqande i-delamination enzulu ngexesha lokugcina.
Ikhusela kwidriphu kunye ne-sags ngexesha lokusetyenziswa.
I-ST, i-SR series ye-CMC esheshayo inokuchithwa ngokupheleleyo kwimizuzu engama-30, yenze isisombululo esicacileyo, esicacileyo, esifana ne-colloidal, ngaphandle kokucwiliswa kwexesha elide kunye nokuvuselela ngamandla.
Iimpawu zobugcisa zeCMC zebakala lokugquma:
3. Ukusetyenziswa kweCMC kushishino lweceramic
Esona sicelo siphambili: I-MB-CMC3 isetyenziswa kwiiseramics njengeretarder, i-arhente yokugcina amanzi, i-thickener kunye ne-stabilizer. Kwinkqubo yokuvelisa i-ceramic, isetyenziswe kumzimba we-ceramic, i-glaze slurry kunye nokuprinta ukuphucula kakhulu amandla okuguquguquka komzimba kunye nokuphucula ukuzinza kwe-glaze slurry.
4. Ukusetyenziswa kwe-CMC kumashishini okuhlamba
Ibakala le-MB-CMC3 yokucoca: isetyenziswa kwizicoci ukunqanda ubumdaka ekubekweni kwakhona. Umgaqo kukuba kukho ukunyanzelwa kwe-electrostatic phakathi kokungcola okuhlawuliswa kakubi kunye neemolekyuli ze-CMC ezifakwe kwilaphu. Ukongeza, i-CMC inokujiya ngokufanelekileyo i-slurry ehlanjiweyo okanye isisombululo sesepha kwaye izinzise ubume bokwakheka.
5. Ukusetyenziswa kwe-CMC kushishino lwemihla ngemihla lwekhemikhali yokuxutywa kwamazinyo
Esona sicelo siphambili: I-MB-CMC3 inqunyanyiswa ikakhulu kwiikhemikhali zemihla ngemihla, ikhusela ukungcola ukuba kuphinde kuphinde kube nemvula kwakhona, kugcinwe ukufuma, ukuzinzisa, kunye nokujiya. Ineenzuzo zokuchithwa ngokukhawuleza kunye nokusetyenziswa okufanelekileyo. Imali eyongeziweyo yi-0.3% -1.0%. Intlama yamazinyo ikakhulu idlala indima yokubumba kunye nokudibanisa. Ngokuhambelana kwayo okugqwesileyo, i-toothpaste ihlala izinzile kwaye ayihlukanisi amanzi. Ngokuqhelekileyo, umthamo onconywayo ngu-0.5-1.5%.
Isithandathu, ukuzinza kwe-CMC glue viscosity ngokuhamba kwexesha, imiyalelo yokusetyenziswa
1. Ngenxa yobunzima obuphezulu be-molecular yale mveliso, xa ulungiselela iglue ye-MB-CMC3, ixesha lokuchithwa li malunga nesiqingatha seyure ngaphezu kwe-CMC eqhelekileyo;
2. Ngenxa ye-viscosity ephezulu yeglue ngaphezu kwe-1.2%, ayifanelekanga ukusebenzisa i-concentration engaphezu kwe-1.2% xa i-CMC igxininiswe. Ngokuqhelekileyo, kulungele ngakumbi ukukhetha iglue kunye noxinzelelo malunga ne-1.0%;
3. Ekukhetheni umlinganiselo wokongezwa we-CMC, kufuneka unqunywe ngokohlobo lwegraphite, indawo ethile yendawo kunye nenani lekhabhoni emnyama (i-agent ye-conductive) engenisiweyo, kunye noluhlu lokudibanisa ngokubanzi luyi-0.5% ^ 1.0%;
4. I-viscosity ye-slurry ilawulwa malunga ne-2500mPa.s, i-smoothing kunye ne-level ye-slurry iya kuba ngcono, ehambelana nokufana kwengubo.
Isixhenxe, iimpawu zemveliso kunye neenzuzo
1. Inobunzima obuphezulu be-molecular, obunokunciphisa kakhulu inani le-CMC elongezelelweyo, kwaye ngexesha elifanayo liqinisekisa i-viscosity kunye nokuzinza kwe-slurry;
2. Isixa se-CMC esongeziweyo kwifomula sincitshiswe malunga ne-1%, enokunyusa umxholo wezinto ezisebenzayo kunye nokunyusa izinga elifanelekileyo lomthamo wemveliso;
Ixesha lokuposa: Jan-05-2023