I-Carboxymethyl isitashiiyi-anionic starch ether, i-electrolyte encibilika emanzini abandayo.I-Carboxymethyl starch ether yenziwa okokuqala ngo-1924 futhi yenziwa ngezimboni ngo-1940. Iwuhlobo lwesitashi esishintshiwe, singesesitashi se-ether, iwuhlobo lwenhlanganisela ye-anion polymer encibilika emanzini.Ayinambitheki, ayinabuthi, akulula ukuyibumba uma izinga lokuyishintsha likhulu kuno-0.2 oncibilika kalula emanzini.

Yayisetshenziswa njenge-stabilizer yodaka, i-ejenti egcina amanzi enemisebenzi yokunciphisa uketshezi(amanzi) ukulahlekelwa kanye nokwenza ngcono ukujiya kobumba lwezinhlayiya zobumba odakeni lokumba uwoyela.Futhi kungcono ukuthwala ama-cuttings okugaya.Ilungele kakhulu usawoti omningi kanye ne-PH Salinization kahle.

I-CMS inezinhlobonhlobo zezakhiwo ezinjengokuqina, ukumiswa, ukuhlakazeka, i-emulsification, isibopho, ukugcinwa kwamanzi kanye ne-colloid evikelayo.Ingasetshenziswa njenge-emulsifier, i-ejenti yokuqina, i-disperant, i-stabilizer, i-ejenti yokulinganisa, i-ejenti eyenza ifilimu, i-ejenti yokugcina amanzi. , njll. Isetshenziswa kakhulu ku-petroleum, izindwangu, amakhemikhali nsuku zonke, ugwayi, ukwenza amaphepha, ukwakhiwa, ukudla, imithi kanye neminye imikhakha yezimboni, eyaziwa ngokuthi "industrial monosodium glutamate".

I-Carboxymethyl starch sodium (CMS) iwuhlobo lwesitashi esilungisiwe esine-carboxymethyl etherification, ukusebenza kungcono kune-carboxymethyl cellulose (CMC), njengomkhiqizo ongcono kakhulu ongangena esikhundleni se-CMC.Isixazululo esimanzi se-CMS sizinzile futhi sisebenza kahle kakhulu, esinoku imisebenzi yokubopha, ukuqina, ukugcinwa kwamanzi, i-emulsification, ukumiswa kanye nokuhlakazeka.I-CMS idlala indima ebalulekile ekunciphiseni ukulahlekelwa kwamanzi kanye nokwenza ngcono ukuqina kwe-coalescence yezinhlayiya zobumba ku-drilling uketshezi njenge-stabilizer yodaka kanye ne-ejenti yokugcina amanzi.I-CMS inomphumela omncane i-viscosity yepulasitiki yodaka kodwa inomthelela omkhulu emandleni aguquguqukayo kanye namandla okugunda, okulungele ukuthwala izicucu zokumba, ikakhulukazi lapho kubhobozwa unamathisele kasawoti, ongenza uketshezi lokumba luzinze, lunciphise inani lokulahleka, futhi luvimbele udonga. collapse.Ifaneleka ngokukhethekile emithonjeni enosawoti enosawoti omningi kanye nenani eliphakeme le-PH.