Journal
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION
Volume 24, Issue 8, Pages 731-740Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/1023666X.2019.1670393
Keywords
Poly(methyl methacrylate) microsphere; dispersion polymerization; matting effect; waterborne polyurethane
Categories
Funding
- National Key Research and Development Program of China [2017YFB0308600]
Ask authors/readers for more resources
Herein, poly(methyl methacrylate) (PMMA) microspheres with different size and distribution were synthesized via one-step dispersion polymerization, using methyl methacrylate (MMA), polyvinylpyrrolidone (PVP), and sodium styrene sulfonate (NaSS) as monomer, stabilizer, and co-monomer, respectively. The influence of MMA, PVP, and NaSS concentrations on the particle size and distribution of PMMA was investigated. The results showed that an increase of NaSS or PVP concentrations; the size of PMMA microspheres tended to decrease while increasing the MMA concentration led to large particle size and wide distribution. In order to evaluate matting effect of PMMA microspheres, artificial leather was used as the base, which was coated by waterborne polyurethane (WPU) mixture with PMMA microspheres. The matting effect was significantly determined by the size scale of PMMA microspheres. With increasing the particle size of microspheres, the gloss of coatings surface gradually decreased. Further mechanism study indicated that PMMA microspheres mounted on the surface of WPU coatings thus making the coating surface rough and bumpy was the reason for obtaining coatings with matting effect. Rough surface leads incident light to scatter rather than reflecting, which was the nature for matting effect of present PMMA microspheres.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available