Polyanionic cellulose, PAC HV & LV

Polyanionic cellulose (PAC) yog ntau yam polymer siv nyob rau hauv ntau yam lag luam, suav nrog roj drilling, tshuaj, kev tsim kho, thiab khoom noj. PAC muaj nyob rau hauv cov qib viscosity sib txawv, suav nrog cov viscosity siab (HV) thiab qis viscosity (LV), txhua qhov tshwj xeeb thiab cov khoom siv:

1. Polyanionic Cellulose (PAC):
   • PAC yog cov dej-soluble cellulose derivative muab tau los ntawm ntuj cellulose los ntawm kev hloov tshuaj, feem ntau yog los ntawm kev qhia carboxymethyl pawg mus rau cellulose qaum.
   • Nws yog dav siv los ua tus hloov kho rheology, viscosifier, thiab cov kua dej tswj tus neeg sawv cev hauv cov tshuab dej.
   • PAC txhim kho cov kua dej xws li viscosity, tshem tawm cov khib nyiab, thiab tswj cov kua dej hauv ntau yam kev siv.
2. PAC HV (High Viscosity):
   • PAC HV yog qib ntawm polyanionic cellulose nrog viscosity siab.
   • Nws yog siv nyob rau hauv drilling kua rau cov roj thiab roj kev tshawb fawb los muab siab viscosity thiab zoo heev kua poob tswj.
   • PAC HV yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig hauv kev nyuaj drilling qhov chaw uas tswj kev ruaj ntseg zoo thiab nqa lub peev xwm rau kev txiav txiav yog qhov tseem ceeb.
3. PAC LV (Low Viscosity):
   • PAC LV yog qib ntawm polyanionic cellulose nrog viscosity tsawg.
   • Nws kuj tseem siv rau hauv cov kua dej drilling tab sis yog qhov zoo dua thaum nruab nrab viscosity thiab kua tsis tswj tau.
   • PAC LV muaj viscosification thiab kua dej poob tswj cov khoom thaum tuav qis viscosity piv rau PAC HV.

Daim ntawv thov:

• Roj thiab Roj Drilling: PAC HV thiab LV yog ob qho tib si tseem ceeb ntxiv rau hauv cov dej hauv cov dej drilling, ua rau muaj kev tiv thaiv viscosity, kev tswj tsis tau dej, thiab kev hloov kho rheology.
• Kev tsim kho: PAC LV tuaj yeem siv los ua cov thickener thiab cov dej tuav hauv cov cementitious formulations xws li grouts, slurries, thiab mortars siv hauv kev tsim kho.
• Pharmaceuticals: Ob leeg PAC HV thiab LV tuaj yeem ua cov binders, disintegrants, thiab tswj-tso cov neeg ua haujlwm hauv cov ntsiav tshuaj thiab cov tshuaj ntsiav tshuaj hauv cov tshuaj.

Hauv cov ntsiab lus, polyanionic cellulose (PAC) nyob rau hauv ob qho tib si siab viscosity (PAC HV) thiab qis viscosity (PAC LV) qib plays lub luag hauj lwm tseem ceeb nyob rau hauv ntau yam lag luam, nrog rau cov roj drilling, kev tsim kho, thiab tshuaj, muab rheological tswj, viscosity hloov, thiab kua. poob tswj cov khoom. Kev xaiv ntawm qib PAC nyob ntawm cov ntawv thov tshwj xeeb thiab cov yam ntxwv xav tau.