Polyanionic cellulose (PAC)

I-Polyanionic Cellulose (i-PAC) i-celluble celluble cellulose esetshenziselwa kakhulu izimboni ezahlukahlukene zezakhiwo zayo ze-rheological kanye namandla okulawula ukulahla ngokweqile. Kuthathwe kusuka ku-cellulose yemvelo ngochungechunge lokuguqulwa kwamakhemikhali, okuholela kwi-polymer ngamacala angu-anionic kanye ne-cellulose backbone. Nawa amanye amaphuzu asemqoka nge-polyanionic cellulose:

1. Isakhiwo samakhemikhali: I-PAC ifana ne-cellulose kodwa iqukethe amaqembu we-anionic carboxyl (-Coo-) anamathiselwe emuva emuva kwe-cellulose. Lawa maqembu we-anionic ahlinzeka nge-PAC ngezakhiwo zayo ezihlukile, kufaka phakathi i-solubity yamanzi kanye nekhono lokusebenzisana namanye ama-molecule ngokusebenzisana ngogesi.
2. Ukusebenza: I-PAC isetshenziswa ngokuyinhloko njengomodi we-Rheology no-ejenti wokulahlekelwa kokulahlekelwa koketshezi ku-drive fluids for uwoyela ukuhlola. Kuyasiza ukulawula i-viscosity kanye nokugeleza kwezakhiwo zoketshezi lokumba, kuthuthukisa ukumiswa kwama-solids, futhi kunciphise ukulahleka koketshezi kube ukwakheka kwe-poraus. I-PAC futhi ithuthukisa ukuhlanza umgodi futhi ivimbele ukungazinzi kahle ngesikhathi sokumba.
3. Izicelo: Uhlelo lokusebenza oluphambili lwe-PAC lusemkhakheni kawoyela negesi, lapho lusetshenziselwa ukumba ukwakheka kodaka. Kuvame ukuqashwa kuwo womabili asuselwa emanzini asuselwa kumanzi nowoyela ukuze uthuthukise ukusebenza futhi uqinisekise ukusebenza okusebenzayo kokumba. I-PAC isetshenziswa nakwezinye izimboni zokuqina, ukuzinza, kanye nezakhiwo zokugcina amanzi ezingubeni ezahlukahlukene.
4. Izinhlobo: I-PAC iyatholakala kumabanga ahlukene kanye nama-viscosities ukuze avumelane nezidingo ezithile zohlelo lokusebenza. Izinhlobo ezijwayelekile ze-PAC zifaka amamaki aphansi okuvuselela amandla okulawulwa kokulahlekelwa koketshezi kanye namamaki aphezulu okuvulelwa amandla okuguqulwa kwe-viscosity nokumiswa kwama-solids ku-drive fluids. Ukukhethwa kohlobo lwe-PAC kuncike ezintweni ezifana nezimo ezinhle, imvelo yokumba, kanye nokucaciswa kwe-fluid.
5. Izinzuzo: Ukusetshenziswa kwe-PAC kunikeza izinzuzo eziningana ekuqhubeni imisebenzi, kufaka phakathi:
   • Isilawuli sokulahleka kwe-fluid ephumelelayo ukuze silondoloze ukuqina kwe-Wellbore futhi sivikele ukulimala kokwakheka.
   • Ukumiswa okuthuthukisiwe kokusika kwe-dring kanye nama-solids, okuholela ekuhlanzeni umgodi okungcono.
   • Izakhiwo ezithuthukile ze-mboya, ukuqinisekisa ukusebenza kwamanzi okungaguquki ngaphansi kwezimo ezazingafani nokwehla.
   • Ukuvumelana nezinye izengezo kanye nokumba izingxenye zamanzi, okwenza ukwakheka kokwenza kanye nokwenza kahle.
6. Ukucatshangelwa Kwezemvelo: Ngenkathi i-PAC isetshenziswa kabanzi ku-drive fluid, umthelela wayo wezemvelo kanye ne-biodergadability kufanele kubhekwe. Kuqhubeka imizamo ukuthuthukisa ezinye izindlela ezinobungane zemvelo ku-PAC futhi zinciphise izinyathelo zayo zemvelo ekusebenzeni kokumba.

I-Polyanionic Cellulose (PAC) iyisengezo esiguquguqukayo futhi ebalulekile emkhakheni kawoyela negesi, lapho idlala indima ebalulekile ekwakheni kahle ukusebenza kwamanzi uketshezi kanye nokuqinisekisa ukusebenza ngempumelelo kokumba. Izakhiwo zalo ezihlukile ze-rheological, amandla okulawula ukulahleka koketshezi, kanye nokuhambisana kwenza kube yingxenye ebalulekile ekuphathweni kodaka.