Open AccessStudy on Preparation and properties of low sensitive polycarboxylate superplasticizer
Author(s) -
Mengqin Guan,
Xianghe Li,
Zhuojun Jiang,
Xuhong Guo
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/711/1/012046
Subject(s) - superplasticizer , acrylate , maleic anhydride , ether , macromonomer , copolymer , polymer chemistry , acrylic acid , ammonium chloride , chemistry , methacrylic acid , polyethylene glycol , vinyl ether , materials science , organic chemistry , polymer , composite material , compressive strength
Esterified macromonomers (P1) were obtained from methacrylic acid(MAA), maleic anhydride(MAn) and methoxy polyethylene glycol monomethyl ether (MPEG). A low sensitive polycarboxylate superplasticizer (P-DMG) was prepared by copolymerization of Esterified macromonomers (P1) with acrylic acid (AA), hydroxyethyl acrylate (HEA), acryloyloxyethyl trimethyl ammonium chloride (DAC) and 4-hydroxybutyl vinyl polyoxyethylene ether (VPEG). Compared with the conventional polycarboxylate superplasticizer, P-DMG can reduce the sensitivity to concrete dosage, water consumption, temperature and raw materials, and has good workability. It can be widely used in various concrete projects.