Synthesis and evaluation of tetra(2,7-octadienyl) titanate as a reactive diluent for air-drying alkyd paints |
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Authors: | Alp H Alidedeoglu Kevin Davis Rhonda Robertson Crystal Smith James W Rawlins Sarah E Morgan |
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Affiliation: | (1) School of Polymers and High Performance Materials, The University of Southern Mississippi, 118 College Drive, Box 10076, Hattiesburg, MS 39406-0001, USA; |
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Abstract: | Environmental regulations are forcing the reformulation of many decorative and protective coatings systems. In particular,
air-drying solventborne alkyd paints need to meet increasingly stringent emission limits and often must be reformulated with
suitable exempt solvents or reactive diluents to achieve volatile organic compound (VOC) reduction. In the research summarized
in this article, a new reactive diluent, tetra(2,7-octadienyl) titanate, was synthesized and evaluated in alkyd formulations
for VOC reduction and property enhancement. A soy-based long-oil alkyd resin; a soy-based high-solids, long-oil alkyd resin;
and a linseed-based, high-solids long-oil alkyd resin were evaluated in combination with the new reactive diluent at weight
percentages ranging from 10% to 50%. Characterization included measuring viscosity, film dry times, and film performance of
the reactive diluent formulations in comparison to neat alkyd resins used as control. The tetra(2,7-octadienyl) titanate formulations
consistently exhibited reduced viscosities and dry times as a function of concentration. The resulting films were harder and
more thoroughly cured than the control systems. |
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