Poly Anionic cellulose, PAC-LV, PAC-HV

Poly anionic cellulose (PAC) yog dej-soluble polymer muab los ntawm cellulose thiab hloov nrog carboxymethyl pawg. Nws pom kev siv dav hauv ntau yam lag luam, suav nrog roj drilling, kev tsim kho, tshuaj, thiab khoom noj. PAC muaj nyob rau hauv cov qib viscosity sib txawv, nrog PAC-LV (Low Viscosity) thiab PAC-HV (High Viscosity) yog ob hom sib txawv. Ntawm no yog ib qho kev faib ntawm txhua qhov:

1. Poly anionic Cellulose (PAC):
   • PAC yog cellulose derivative uas imparts rheological zog rau aqueous daws.
   • Nws yog siv los ua viscosifier, kua dej tsis tswj tus neeg sawv cev, thiab rheology hloov kho hauv ntau hom kev siv.
   • PAC muaj txiaj ntsig zoo hauv kev tswj cov kua dej xws li viscosity, tshem tawm cov khib nyiab, thiab cov kua dej poob, ua rau nws muaj txiaj ntsig hauv ntau yam kev lag luam.
2. PAC-LV (Low Viscosity):
   • PAC-LV yog qib ntawm polyanionic cellulose nrog viscosity tsawg.
   • Nws feem ntau yog siv thaum nruab nrab viscosity thiab kev tswj tsis tau cov kua dej hauv cov ntawv thov xws li roj drilling, kev tsim kho, thiab tshuaj.
   • PAC-LV muab viscosification thiab kua dej poob tswj cov khoom thaum tswj qis viscosity piv rau PAC-HV.
3. PAC-HV (High Viscosity):
   • PAC-HV yog qib ntawm polyanionic cellulose nrog viscosity siab.
   • Nws yog ua hauj lwm thaum lub siab viscosity thiab zoo heev kua poob tswj yuav tsum tau, tshwj xeeb tshaj yog nyob rau hauv xav tau daim ntawv thov xws li roj thiab roj drilling.
   • PAC-HV yog tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv kev tswj kom muaj kev ruaj ntseg zoo, nqa lub peev xwm rau drilled cuttings, thiab tswj cov dej poob hauv kev nyuaj drilling.

Daim ntawv thov:

• Roj thiab Roj Drilling: Ob leeg PAC-LV thiab PAC-HV yog cov khoom siv tseem ceeb hauv cov dej hauv cov dej drilling, ua rau muaj kev tiv thaiv viscosity, tswj tsis tau dej, thiab hloov kho rheology.
• Kev tsim kho: PAC-LV tuaj yeem siv los ua cov thickener thiab dej khaws cia hauv cov cementitious formulations xws li grouts, slurries, thiab mortars siv hauv kev tsim kho.
• Pharmaceuticals: PAC-LV thiab PAC-HV 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.
• Kev lag luam khoom noj khoom haus: PAC yog siv los ua cov thickener, stabilizer, thiab emulsifier hauv cov khoom noj khoom haus, muab kev ntxhib los mos thiab txhim kho txee lub neej.

Hauv cov ntsiab lus, polyanionic cellulose nyob rau hauv ob qho tib si tsis tshua muaj viscosity (PAC-LV) thiab siab viscosity (PAC-HV) qib plays lub luag haujlwm tseem ceeb hauv ntau qhov kev lag luam, muab kev tswj rheological, hloov kho viscosity, thiab cov dej tsis zoo tswj cov khoom raws li kev thov tshwj xeeb.