High-viscosity polyanionic cellulose (PAC-HV) yog ib qho tseem ceeb polymer siv nyob rau hauv ntau yam kev siv.Cov khoom siv ntau yam no tau siv txhua yam los ntawm cov roj drilling mus rau kev ua zaub mov.
Polyanionic Cellulose (PAC-HV) Txheej txheem cej luam
1.Definition thiab qauv:
Polyanionic cellulose yog dej-soluble cellulose derivative nrog anionic functional pawg.Nws cov viscosity siab sib txawv, PAC-HV, yog tus cwj pwm los ntawm viscosity ntau dua piv rau lwm hom PAC.Cov qauv molecular ntawm PAC-HV yog muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa.Kev taw qhia ntawm pawg anionic txhim kho nws cov solubility hauv dej.
2. Nta ntawm PAC-HV:
Viscosity: Raws li lub npe qhia, PAC-HV muaj viscosity siab, ua rau nws tsim nyog rau cov ntawv thov kom thickening lossis gelling.
Dej Solubility: PAC-HV yog cov dej soluble hauv dej, ua rau nws muaj txiaj ntsig zoo hauv ntau lub tshuab dej.
Thermal Stability: Lub polymer tseem ruaj khov ntawm qhov kub thiab txias, nthuav nws cov kev siv tau hauv cov txheej txheem kev lag luam.
Kev siv PAC-HV
1. Kev lag luam roj thiab roj:
Drilling Fluids: PAC-HV yog dav siv los ua cov khoom tseem ceeb hauv cov dej drilling los tswj cov viscosity, tshem tawm cov khib nyiab thiab txhim khu kev ruaj ntseg zoo.
Fracturing Fluids: Nyob rau hauv hydraulic fracturing, PAC-HV pab nyob rau hauv viscosity tswj, kom ntseeg tau npaum li cas cov khoom xa tuaj thiab cov dej ntws.
2. Khoom noj khoom haus kev lag luam:
Thickening Agent: PAC-HV yog siv los ua cov khoom ua kom tuab hauv cov khoom noj xws li kua ntses, hnav khaub ncaws thiab khoom qab zib.
Stabilizer: Nws txhim khu kev ruaj ntseg ntawm emulsions thiab tiv thaiv theem sib cais hauv qee cov khoom noj.
3. Tshuaj:
Kev xa tshuaj: PAC-HV yog siv los ua ib qho kev sib khi thiab tsis sib haum xeeb hauv cov qauv tshuaj los pab txhawb kev tso tshuaj.
Suspensions: Lawv cov khoom raug ncua ua rau lawv muaj txiaj ntsig hauv cov tshuaj ua kua.
4. Textile kev lag luam:
Sizing tus neeg sawv cev: PAC-HV yog siv rau textile sizing los txhim kho lub zog thiab zoo ntawm cov xov paj thaum lub sij hawm weaving.
5. Ntawv kev lag luam:
Kev pab khaws cia: Hauv kev ua cov ntawv, PAC-HV ua raws li kev pabcuam khaws cia, txhim kho khaws cov khoom zoo thiab cov khoom ntim.
kev tsim khoom
Kev tsim cov PAC-HV suav nrog kev hloov pauv ntawm cellulose los ntawm cov tshuaj tiv thaiv.
Cov kauj ruam uas nquag muaj xws li:
Alkalizing: Kho cellulose nrog alkali kom qhib hydroxyl pawg.
Etherification: qhia anionic pawg los ntawm etherification los txhim kho cov dej solubility.
Purification: Cov khoom ua tau yog purified kom tshem tawm impurities.
kev xav txog ib puag ncig
Thaum PAC-HV muaj ntau yam txiaj ntsig kev lag luam, kev xav txog ib puag ncig kuj tseem ceeb heev.
Txhim kho cov txheej txheem tsim khoom kom txo tau qhov cuam tshuam ib puag ncig.
Tshawb nrhiav lwm txoj hauv kev zoo ib puag ncig lossis kev hloov pauv ntawm cellulose derivatives.
Txhawb kom rov ua dua tshiab thiab muaj lub luag haujlwm pov tseg.
High-viscosity polyanionic cellulose (PAC-HV) yog ib qho tseem ceeb polymer nrog ntau yam kev siv.Nws cov khoom tshwj xeeb ua rau nws tseem ceeb hauv kev lag luam xws li roj thiab roj, khoom noj thiab tshuaj.Raws li kev siv thev naus laus zis txuas ntxiv mus, muaj kev tsom mus rau kev tsim khoom lag luam ruaj khov thiab kev siv tus phooj ywg ib puag ncig ntawm PAC-HV hauv ntau daim ntawv thov.
Post lub sij hawm: Jan-20-2024