Indlela yokukhiqiza
Indlela 1: Indlela ye-Hydrolysis
Ii-acrylamideetholwe ngendlela ye-hydrolysis inokusabalalisa okungajwayelekile kwamaketanga e-acrylamide kumaketanga e-macromolecular.Iphesenti le-molar yei-acrylamideamaketanga emaketangeni e-macromolecular yizinga le-hydrolysis.
Uma kuqhathaniswa nendlela ye-copolymerization, i-anti-dandruff factor (HD) encibilikayo emanzini yemikhiqizo elungiselelwe indlela evamile ye-hydrolysis ayiphezulu, ngaphansi kuka-30%.Ngokwethiyori, imikhiqizo ene-HD engaphezu kuka-70% kufanele ilungiswe ngendlela ye-copolymerization, enezidingo ezithile ekushiseni kwe-hydrolysis nemicimbi, futhi ijwayele ukuwohloka kwe-macromolecular ngesikhathi senqubo ye-hydrolysis.
Indlela yesi-2: I-Polymerization yesisombululo esinamanzi
I-Aqueous solution polymerization polymerization lapho i-reaction monomer ne-initiator zincibilika emanzini.Le ndlela ilula, ukungcola kancane kwemvelo, isivuno high of polymer, kulula ukuthola high isihlobo amangqamuzana isisindo polymer, iyona ndlela yokuqala esetshenziswa ukukhiqizwa kwezimboni of polyacrylamide, futhi bekulokhu indlela eyinhloko ukukhiqizwa kwezimboni of polyacrylamide.I-polymerization yesisombululo se-aqueous ifundwe ngokujulile.
Indlela yesi-3: I-emulsion polymerization eguquliwe
Uhlelo lokuhlakazwa kwe-colloidal lwesigaba esibuyiselwe emuva ludinga ukulungiswa ngaphambi kokuhlehliswa kwe-emulsion polymerization yesigaba esihlehlisiwe kanye ne-reversed-phase-suspension polymerization, okungukuthi, uhlelo lokuhlakazeka kwamanzi/uwoyela (W/0) lwakhiwa esigabeni sikawoyela sesisombululo samanzi se-monomer ngokugqugquzela ukuhlakazeka. noma i-emulsifier, bese i-initiator iyengezwa ukuze kwenziwe i-polymerization yesisekelo samahhala.
Ngokuvamile, iziqalisi ezincibilikayo zikawoyela zisetshenziswa ku-emulsion polymerization yesigaba esihlehlisiwe, ikakhulukazi ama-anionic free radical Initiators nama-non-ionic free radical Initiators, kuyilapho i-polymerization yokumiswa kwesigaba esibuyiselwe isebenzisa iziqalisi ezincibilika emanzini, njenge-persulfate.Kunokubukwa okubili kumshini we-nucleation we-AM/AA ehlehlisiwe we-emulsion polymerization: i-micellar nucleation kanye ne-monomer droplet nucleation.I-kinetics ihluke kakhulu kuleyo ye-emulsion polymerization evamile.
Indlela yesi-4: Hlehlisa i-polymerization yokumiswa
I-reverse-phase suspension polymerization iyindlela efanelekile yokukhiqizwa kwezimboni zama-polymers ancibilika emanzini athuthukiswe eminyakeni eyi-10 yakamuva.I-Di-monie yafunda i-AM reversed-phase susspension polymerization isebenzisa i-conductivity, i-NMR kanye ne-electron microscopy ngo-1982.
Indlela yesi-5: Ezinye izindlela ze-polymerization
Ngaphezu kwalezi zindlela ezingenhla, i-homopolymer ne-copolymer ye-acrylamide kanye nokuphuma kwayo kungashintshwa ngokusabela kwe-Mannich nokuxhunyelelwa kwe-copolymerization.Ukwethulwa kwama-amine ku-polyacrylamide ngesikhathi sokusabela kwe-Mannich kuyindlela ebalulekile yokuthola i-cationic polyelectrografting ye-polyacrylamide.Ama-amine asetshenziswa kakhulu yi-dimethylamine, i-diethylamine, i-diethanolamine nokunye.
I-AM/AA ivamise ukuxhunyelelwa nesitashi ukuze kulungiswe izinhlaka ezimunca kakhulu, noma namanye ama-macromolecular monomers ukuze kuxhunyelelwe i-AM/AA kulwelwesi oluthile.I-high molecular weight cationic polyacrylamide (CPAM) isetshenziswa kakhulu ekukhiqizeni uwoyela, kodwa i-HPAM inokubekezelela usawoti okungekuhle.
Isikhathi sokuthumela: Mar-09-2023