A waterborne polyurethane （WPU） was synthesized with polytetramethylene ether glycol （PTMEG-2000）， isophorone diisocyanate （IPDI）， hydroxyethyl methacrylate （HEMA）， 2，2-dimethylolpropionic acid （DMPA） and 1，4-butanediol （BDO），wherein hydroxyethyl methacrylate （HEMA） was used to block the-NCO terminal groups. Then， the WPU was modified by hydroxypropyl methacrylate （HPMA）， methyl methacrylate （MMA）， vinyl triisopropoxysilane（AC-76）. A series of acrylic polymer （PA）， PA／AC-76 modified PU films were prepared. The structure of the modified film was characterized by FT-IR. The effects of PA dosage， mass ratio of MMA and HPMA， addition of AC-76 on the mechanical properties， hydrophobic property of the film were investigated via pencil scratch hardness tester， adhesion tester and contact angle meter. The results showed that the PA， AC-76 and PU were cross-linked successfully. The mechanical properties and hydrophobic properties of the modified film were improved significantly. The optimal performance of the film was obtained under the following conditions：PA 40wt％，ratio of MMA／HPMA 5∶4，AC-76 5.41％.
JI Jian-Ye
,
LONG Xiao-Yan
,
GE Xun
,
LIANG Wei-Jie
,
ZHANG Gui-Yun
,
CHEN Xun-Jun
,
GE Jian-Fang
. Preparation and Characterization of Silicone Contained Acrylate Modified Waterborne Polyurethane Emulsion[J]. Paint & Coatings Industry, 2019
, 49(1)
: 33
-39
.
DOI: 10.12020/j.issn.0253-4312.2019.1.33
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