Based on the hydrophilic and anticorrosive properties of phosphorus-containing functional monomer PAM-100 and the encapsulation mechanism of latex micelles, an epoxy modified acrylic resin composite latex with high epoxy content was prepared by emulsion polymerization. Its structure was characterized. The composite latex was used to prepare 2K waterborne metal anticorrosive primer. The effects of epoxy resin content, acrylic phosphate ester content, methacrylic acid content and glass transition temperature (Tg) on the film properties were studied. The results showed that when the amount of epoxy resin NPEL-127, acrylic phosphate ester (PAM-100), methacrylic acid (MAA) were 25%, 3%and 1.5% of the total monomers respectively and the Tg of resin was 15.30 ℃, the pencil hardness of the film derived from the synthetic resin could reach 2H with excellent adhesion, flexibility and impact resistance and good corrosion resistance.
PANG Jia-Ming
,
SHEN Liang
. Preparation and Properties of 2K Epoxy Modified Acrylic Resin Composite Latex[J]. Paint & Coatings Industry, 2019
, 49(3)
: 20
-24
.
DOI: 10.12020/j.issn.0253-4312.2019.3.20
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