A multi-crosslinking hydroxyl acrylate latex for wood varnish was developed bya semi-continuous emulsion polymerization process，with butyl acrylate（BA） and methyl methacrylate（MMA）as the main monomers，acrylic acid（AA）， hydroxyethyl methacrylate（HEMA）and diacetone acrylamide（DAAM）/ adipic acid dihydrazide（ADH）self-crosslinkingsystem as functional monomers. The influence of dosage and glass transition temperature（Tg） of HEMA，DAAM/ADH，AA on latex and film therefrom were investigated. The results showedthat when the hydroxyl groups content was 4%，and DAAM and AA accounted for 2% and 1.5% of the total monomer respectively，and the Tg of latex was 20 ℃（Ca.value），the preparedhydroxyl latex was used to formulate a two-component wood finish. The film showed a pencilhardness of 2H，adhesion of grade 0，excellent water resistance and good chemical resistance.
TIAN Ying
,
JIAO Yong-Luo
,
SHEN Liang
. Preparation and Application of Multi-Crosslinking Hydroxyl Acrylate Latex for Wood Varnish[J]. Paint & Coatings Industry, 2019
, 49(7)
: 53
-58
.
DOI: 10.12020/j.issn.0253-4312.2019.7.53
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