Polyacrylamide yog hu ua PAM, thiab muab faib ua anion (HPAM) thiab cation (CPAM).Nonionic (NPAM) yog ib qho linear polymer thiab ib qho ntawm ntau hom kev siv hauv cov dej-soluble polymer compounds.Thiab nws cov derivatives yuav siv tau raws li zoo flocculants, thickeners, daim ntawv ntxiv dag zog cov neeg ua hauj thiab cov kua drag reducers, thiab lwm yam., lug siv nyob rau hauv dej kho, papermaking, roj av, thee, mining thiab metallurgy, geology, textiles, kev tsim kho, thiab lwm yam Industrial sector.
Polyacrylamide yog hu ua No. 3 coagulant, flocculant No. 3;hu ua PAM;nws feem ntau hu ua kev pab khaws cia hauv papermaking thiab lwm yam kev lag luam.Tam sim no, cov khoom uas feem ntau muab los ntawm peb lub tuam txhab yog cov khoom (cov hmoov qhuav) thiab emulsion.
Polyacrylamide muab faib ua anionic polyacrylamide;cationic polyacrylamide;nonionic polyacrylamide;zwitterionic polyacrylamide;Lub npe Askiv;PAM (acrylamide).
Txoj cai ntawm kev ua
1) Lub hauv paus ntsiab lus ntawm flocculation: thaum PAM siv rau flocculation, nws muaj feem xyuam rau cov khoom saum npoo ntawm cov flocculated hom, tshwj xeeb tshaj yog lub peev xwm kinetic, viscosity, turbidity thiab pH tus nqi ntawm kev ncua.Lub peev xwm dynamic ntawm particle nto yog vim li cas rau particle inhibition.PAM nrog cov nqi sib txawv tuaj yeem txo cov peev txheej kinetic thiab sib sau ua ke.
2) Adsorption thiab bridging: PAM molecular chains yog tsau rau ntawm qhov chaw ntawm cov khoom sib txawv, thiab cov txuas txuas polymer yog tsim los ntawm cov khoom, kom cov khoom sib sau ua ke thiab sib haum xeeb.
3) Nto adsorption: ntau yam adsorptions ntawm pawg polar pawg ntawm PAM molecules.
4) Kev txhawb zog ntxiv: PAM cov saw hlau molecular thiab cov txheej txheem dispersed cuam tshuam rau theem dispersed ua ke los ntawm ntau yam khoom siv, lub cev thiab tshuaj lom neeg los tsim lub network.
TechnicalIcov kws kho mob
| Yam khoom | Sab nrauv | Molecular Luj (10,000) | Khoom ntsiab lus% | Ionic degree lossis degree ntawm hydrolysis% | Residual monomer% | Siv ntau yam |
| Anionic | dawb granule los yog hmoov | 300-2200 Nws | ≥88 | Hydrolysis degree 10-35 | ≤0.2 | Lub pH ntawm dej yog nruab nrab lossis alkaline |
| Cationic | dawb granule | 500-1200 Nws | ≥88 | Ionic degree 5-80 | ≤0.2 | Siv tshuab centrifugal lim xovxwm |
| Tsis-ionic | dawb granule | 200-1500 Nws | ≥88 | Hydrolysis degree 0-5 | ≤0.2 | Lub pH ntawm dej yog nruab nrab lossis alkaline |
| Zwitterionic | dawb granule | 500-1200 Nws | ≥88 | Ionic degree 5-50 | ≤0.2 | Siv tshuab centrifugal lim xovxwm |
| Anionic | kev faib ua feem | 0.62 ib | Kuaj qhov hnyav | 0.5 |
Post lub sij hawm: Feb-01-2023