Polycarboxylate Superplasticizer PCEti wa ni kq macromolecular agbo pẹlu sulfonic acid awọn ẹgbẹ, carboxyl awọn ẹgbẹ, amino awọn ẹgbẹ, ati polyoxyethylene ẹgbẹ ẹwọn, bbl, ni olomi ojutu, nipasẹ awọn opo ti free radical copolymerization kolaginni ti polima pẹlu kan comb be Surfactant.

Awọn ifilelẹ ti awọn aise ohun elo ti a beere fun awọn kolaginni tiIkole kemikali Omi reducer Polycarboxylate Superplasticierjẹ: methacrylic acid, acrylic acid, ethyl acrylate, hydroxyethyl acrylate, sodium allyl sulfonate, methyl methacrylate, 2-acrylamido- 2-methacrylic acid, methoxy polyoxyethylene methacrylate, ethoxy polyethylene glycol acrylate, canyl be all ethylene. ninu ilana polymerization ni: awọn olupilẹṣẹ ti o da lori persulfate, Benzoyl peroxide, azobisisobutyl cyanide;awọn aṣoju gbigbe pq: 3-mercaptopropionic acid, mercaptoacetic acid, bbl

Awọn polycarboxylic acid omi atehinwa oluranlowo Ọna kolaginni jẹ: ninu filasi isalẹ yika ti o ni ipese pẹlu aruwo ina, thermometer kan, ẹrọ sisọ silẹ, ati condenser reflux, ojutu monomer polymerization ati ojutu initiator ni a ṣafikun laiyara ni sisọ nipasẹ ọna alapapo ni iwẹ omi kan.Nigbati o ba yan monomer polymerization, Ile-ẹkọ giga pẹlu oṣuwọn idije rẹ yẹ ki o gbero ni kikun.Awọn iwọn otutu ifaseyin le ṣe ipinnu ni ibamu si iru ifaseyin kan pato monomer.Ni gbogbogbo, awọn iwọn otutu ni iwọn otutu ibiti o ti 70 ~ 95 ℃ le ti wa ni ti a ti yan bi awọn lenu otutu.

Ju ojutu monomer silẹ laarin wakati kan, lẹhinna fi silẹ laarin iṣẹju 20, ṣafikun ojutu olupilẹṣẹ ti o ku, ati nikẹhin mu iwọn otutu pọ si nipasẹ 5 ° C, tẹsiwaju iṣesi fun 1h, ati lẹhin iwọn otutu ti dinku si 40 ° C, yomi ati yomi. idasilẹ.