Abstract
To optimize the dispersion and interfacial interaction of ZnO nanoparticles in UV-curing poly(urethane acrylate) (PUA) nanocomposites, a series of amphiphilic polyurethane (APU)-functionalized ZnO nanoparticles were prepared by an inverse miniemulsion process at room temperature. The ZnO nanoparticles functionalized with poly(tetramethylene glycol) (PTMG) based APU end-capped by various hydroxyl-containing compounds, including butyl alcohol (BA), hydroxyethyl methacrylate (HEMA) and pentaerythritol triacrylate (PETA), could be well dispersed in toluene and acrylic monomers (methyl methacrylate, HEMA). Compared with PTMG-APU-BA-ZnO and PTMG-APU-PETA-ZnO, the incorporation of PTMG-APU-HEMA-ZnO nanoparticles (0.3 wt %) into PUA significantly enhanced the Young's modulus, tensile strength, toughness, and UV-shielding properties without compromising the high transparency of PUA nanocomposites. This study provides a new strategy for designing high-performance ZnO nanocomposites with potential to be used in advanced nanocomposite coatings.
| Original language | English |
|---|---|
| Pages (from-to) | 59-67 |
| Number of pages | 9 |
| Journal | ACS Applied Nano Materials |
| Volume | 3 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 24 2020 |
Scopus Subject Areas
- General Materials Science
Keywords
- UV-shielding
- ZnO
- amphiphilic polyurethane (APU)
- inverse miniemulsion
- nanocomposites
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