Open AccessResearch on the Effect of Different Esters on the Synthesis of Polycarboxylate Superplasticizer at Low Content
Author(s) -
Xiao Hong Yang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/571/1/012155
Subject(s) - superplasticizer , acrylate , macromonomer , monomer , methacrylate , materials science , polymer , polymer chemistry , dispersion (optics) , yield (engineering) , chemical engineering , cement , composite material , physics , optics , engineering
This article uses three ester monomers, hydroxyethyl methacrylate (HEMA), hydroxyethyl acrylate (HEA), and hydroxypropyl acrylate (HPA), mixed with 2% of the mass of the macromonomer to synthesize Polycarboxylate Superplasticizer (PCE), compared with the blank sample without esters. The GPC technology was used to investigate the influence of different ester monomers on the molecular weight and distribution of PCE and the polymer yield at low dosages. The cement paste and concrete tests were carried out for testing the performance of PCE. Experiments proves that HEMA affects initial dispersion performance at low dosage. The article concludes that HEA and HPA indeed played a slow-release effect at low content.