Associative thickeners for waterborne paints: Structure, characterization, rheology, and modeling
被引:37
作者:
Larson, Ronald G.
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机构:
Univ Michigan, Dept Chem & Biol Engn, Ann Arbor, MI 48109 USAUniv Michigan, Dept Chem & Biol Engn, Ann Arbor, MI 48109 USA
Larson, Ronald G.
[1
]
Van Dyk, Antony K.
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机构:
Dow Coating Mat, Collegeville, PA 19426 USAUniv Michigan, Dept Chem & Biol Engn, Ann Arbor, MI 48109 USA
Van Dyk, Antony K.
[2
]
Chatterjee, Tirtha
论文数: 0引用数: 0
h-index: 0
机构:
Dow Chem Co USA, Core R&D, Midland, MI 48674 USA
DuPont Water Solut, Expt Stn Labs, Wilmington, DE 19803 USAUniv Michigan, Dept Chem & Biol Engn, Ann Arbor, MI 48109 USA
Chatterjee, Tirtha
[3
,4
]
Ginzburg, Valeriy V.
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机构:
Dow Chem Co USA, Core R&D, Midland, MI 48674 USA
Michigan State Univ, Chem Engn & Mat Sci Dept, E Lansing, MI 48824 USAUniv Michigan, Dept Chem & Biol Engn, Ann Arbor, MI 48109 USA
Ginzburg, Valeriy V.
[3
,5
]
机构:
[1] Univ Michigan, Dept Chem & Biol Engn, Ann Arbor, MI 48109 USA
[2] Dow Coating Mat, Collegeville, PA 19426 USA
[3] Dow Chem Co USA, Core R&D, Midland, MI 48674 USA
[4] DuPont Water Solut, Expt Stn Labs, Wilmington, DE 19803 USA
[5] Michigan State Univ, Chem Engn & Mat Sci Dept, E Lansing, MI 48824 USA
Architectural coatings/paints play a very important role in our world, making our houses and workplaces beautiful, comfortable, and energy-efficient. Polymeric components of coating formulations include latex or binder, dispersants, and thickeners or rheology modifiers [RM]). This review is devoted to the RMs, primarily associative thickeners [AT], specifically highlighting the relationship between the thickener molecular structure, paint formulation, rheology, and application. We briefly describe the chemistries of various associative thickeners ( "hydrophobic alkali-swellable emulsion " [HASE], hydrophobically modified hydroxyethylcellulose [HMHEC], and "hydrophobically modified ethoxylated urethane " [HEUR]) polymers. Concentrating on the HEUR thickeners, we then review the structure and rheology of their aqueous solutions and of model paints containing HEURs and latex particles in water. For model paints, we review experimental studies (rheology, NMR, and SANS) and theoretical models from molecular-level classical Molecular Dynamics [MD] to mesoscale coarse-grained MD to large-scale rheology calculations. Lastly, influence of rheological metrics on specific paint application features (flow and leveling, sag resistance, and brush drug) is discussed. We conclude by highlighting opportunities and challenges for future research. (C) 2022 Elsevier B.V. All rights reserved.