This article has described a waterborne polyester resin modified by triglycidyl isocyanurate（ TGIC）with three end-epoxy groups.The carboxyl groups were reacted withepoxy groups to form ester bond and hydroxyl groups and further reaction leading to a 6-branched island structure waterborne polyester resin.The microstructure of the TGIC modifiedwaterborne polyester was analyzed by FT-IR，X-ray diffraction（XRD）and Gel Permeation Chromatography（GPC）. The effects of TGIC，pentaerythritol and trimethylolpropane，as the branching components，on the storage stability，T-bend，heat resistance，boiling-water resistance，solvent resistance of the waterborne polyester，were compared.The results showedthat the waterborne polyester resin modified by TGIC provided better T-bend and heatresistance，as well as the solvent scrubbing resistance，boiling-water resistance and chemical resistance，which were comparable to the waterborne polyester produced with other aliphaticbranching monomers.
ZHANG Cha
,
LU Yun-Jie
,
LI Yong
,
GU Yu-Xin
,
HU Zhen-Yang
. Study on Properties of Waterborne Polyester Modified by Triglycidyl Isocyanurate[J]. Paint & Coatings Industry, 2019
, 49(7)
: 40
-45
.
DOI: 10.12020/j.issn.0253-4312.2019.7.40
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