Nzira yekugadzira
Nzira 1: Hydrolysis nzira
Theacrylamideyakawanikwa ne hydrolysis nzira ine kuparadzirwa kusingaenzaniswi kwemaketani eacrylamide pamaketani macromolecular. The molar percentage yeacrylamidecheni pa macromolecular cheni ndiyo dhigirii re hydrolysis.
Kuenzaniswa nekopolymerization nzira, mvura-inonyunguduka anti-dandruff factor (HD) yezvigadzirwa zvakagadzirirwa nehuwandu hwehydrolysis nzira haisi yakakwirira, isingasviki 30%. Tichifunga, zvigadzirwa zvine HD zvinodarika makumi manomwe muzana zvinofanirwa kugadzirirwa neiyo copolymerization nzira, ine zvimwe zvinodikanwa pane hydrolysis tembiricha uye zviitiko, uye inokonzeresa macromolecular kudzikira panguva yehydrolysis process.
Nzira 2: Polymerization yeaqueous solution
Aqueous solution polymerization polymerization umo reaction monomer uye initiator inonyungudika mumvura. Nzira iyi iri nyore, shoma kusvibiswa kwezvakatipoteredza, goho guru repolymer, nyore kuwana yakakwirira hama molecular uremu polymer, ndiyo nzira yokutanga kushandiswa mumaindasitiri kugadzirwa polyacrylamide, uye yave nzira huru maindasitiri kugadzirwa polyacrylamide. Iyo polymerization yeaqueous solution yakadzidzwa zvakadzama.
Nzira 3: Inverted emulsion polymerization
Reversed-phase colloidal dispersion system inoda kugadzirirwa isati yadzoserwa-phase emulsion polymerization uye reversed-phase suspension polymerization, kureva, mvura/mafuta (W/0) heterogeneous dispersion system inoumbwa muchikamu chemafuta chemonomer aqueous solution nekukurudzira kupararira. kana emulsifier, uye ipapo initiator inowedzerwa yemahara base polymerization.
Kazhinji, oiri soluble initiators anoshandiswa mune reversed-phase emulsion polymerization, kunyanya anionic yemahara radical initiators uye isiri-ionic yemahara radical initiators, nepo reversed-chikamu kumiswa polymerization inoshandisa mvura soluble initiators, senge persulfate. Pane maonero maviri pamusoro peiyo nucleation mechanism ye AM/AA yakadzoserwa emulsion polymerization: micellar nucleation uye monomer droplet nucleation. Iyo kinetics yakasiyana chaizvo neyeyakajairika yakanaka emulsion polymerization.
Nzira 4: Reverse kumiswa polymerization
Reversed-phase suspension polymerization inzira yakanaka yekugadzirwa kwemaindasitiri kwemapolymer anonyungudika emvura akagadzirwa mumakore gumi apfuura. Di-monie akadzidza AM akadzoreredzwa-chikamu kumiswa polymerization uchishandisa conductivity, NMR uye electron microscopy muna 1982.
Nzira 5: Dzimwe nzira dzepolymerization
Mukuwedzera kune nzira dziri pamusoro apa, homopolymer uye copolymer ye acrylamide uye zvinyorwa zvayo zvinogona kuchinjwa neMannich maitiro uye kubatanidza copolymerization. Kuiswa kwemaamine mu polyacrylamide panguva yeMannich reaction inzira yakakosha yekuwana cationic polyelectrografting ye polyacrylamide. Anowanzo shandiswa amines dimethylamine, diethylamine, diethanolamine uye zvichingodaro.
AM/AA inowanzobatanidzwa nestarch kuti igadzirire resin inonyudza zvakanyanya, kana nemamwe macromolecular monomers kubatanidza AM/AA mune mamwe ma membranes. High molecular huremu cationic polyacrylamide (CPAM) inoshandiswa zvakanyanya mukugadzirwa kweoiri, asi HPAM haina kushivirira munyu.
Nguva yekutumira: Kurume-09-2023