Tlhahlobo ea theknoloji ea tlhahiso ea polyacrylamide

Mokhoa oa tlhahiso ea Polyacrylamidee kenyelletsa ho becha, polymerization, granulation, ho omisa, ho pholisa, ho pshatla le ho paka. Lintho tse tala li kena ka kettle ea dosing ka phala, li eketsa li-additives ho kopanya ka mokhoa o ts'oanang, ho pholile ho 0-5 ℃, thepa e tala e romelloa kettle ea polymerization ka nitrogen deoxygenation, oksijene e fokotsehile hoo e ka bang 1%, eketsa initiator bakeng sa polymerization, ka mor'a hore polymerization, "rabara e" e khaotsoe, e romelloe ho pelletizer bakeng sa granulation, li-pellets tse nang le granulated li romelloa betheng ea ho omisa. bakeng sa ho omisa. Thepa e omisitsoeng e romelloa tsamaisong ea ho senya le ho hlahloba bakeng sa ho senya. Kamora ho sithabela, thepa e kena ka har'a sistimi ea ho paka bakeng sa ho paka ebe e theha sehlahisoa se felileng.

Polyacrylamidets'ebetso ea tlhahiso e na le mehato e 'meli

Mokhoa oa tlhahiso ea monomer

Tlhahiso ea acrylamide monoma e itšetlehile ka acrylonitrile e le lintho tse bonahalang tse tala, tlas'a ketso ea catalyst hydration ho hlahisa lihlahisoa tse tala tsa acrylamide monoma, ka mor'a hore flash distillation, hloekisitsoeng acrylamide monoma, monoma ena ke lintho tse bonahalang tse tala bakeng sa tlhahiso ea poly444 acrylamide.

Acrylonitrile + (setšehetso sa metsi/metsi) → se kopantsoe → acrylamide e tala → flash → e hloekisitsoeng → acrylamide e hloekisitsoeng.

theknoloji ea polymerization

Polyacrylamide aqueous tharollo e sebelisoa e le thepa e tala bakeng sa tlhahiso. Tlas'a ketso ea initiator, karabelo ea polymerization e etsoa. Ka mor'a hore karabelo e phethoe, polyacrylamide gum block e hlahisoang e ea khaoloa, e granulated, e omisitsoe le ho sithabetsoa, ​​'me qetellong sehlahisoa sa polyacrylamide se lokisoa. Mokhoa oa bohlokoa ke polymerization. Ka mokhoa o latelang oa phekolo, tlhokomelo e lokela ho lefshoa ho pholiso ea mechine, ho senyeha ha mocheso le crosslinking, e le ho etsa bonnete ba hore boima ba limolek'hule le metsi a solubility ea polyacrylamide.

Acrylamide+ metsi (ho qala / polymerization) → polyacrylamide gum block → granulation → ho omisa → ho senya → sehlahisoa sa polyacrylamide