Itoh Toshio, Uchida Toshio, Izu Noriya, Shin Woosuck
National Institute of Advanced Industrial Science and Technology (AIST), Shimo-shidami, Moriyama-ku, Nagoya 463-8560, Japan.
Materials (Basel). 2017 Jun 27;10(7):710. doi: 10.3390/ma10070710.
We investigated the preparation of well-dispersed core-shell ceria-poly(vinylpyrrolidone) (PVP) nanoparticles with an average particle size of around 20 nm which were used to produce a hybrid film with a polymer coating of dipentaerythritol hexaacrylate (DPHA). We obtained good dispersion of the nanoparticles in a mixed solvent of 48% 1-methoxy-2-propanol (MP), 32% 3-methoxy-3-methyl-1-butanol (MMB), and 20% methyl -butyl ketone (MIBK). An ink of the polymer coating consisting of 68.7 wt% nanoparticles and 31.3 wt% DPHA with a polymerization initiator was prepared using this solvent mixture. The surface of the hybrid film showed low roughness and the nanoparticles formed a densely packed structure in the DPHA matrix. The resulting coating possessed excellent transparency and a high refractive index of 1.69.
我们研究了平均粒径约为20 nm的分散良好的核壳结构二氧化铈-聚（乙烯基吡咯烷酮）（PVP）纳米颗粒的制备方法，该纳米颗粒用于制备具有二季戊四醇六丙烯酸酯（DPHA）聚合物涂层的混合薄膜。我们在由48%的1-甲氧基-2-丙醇（MP）、32%的3-甲氧基-3-甲基-1-丁醇（MMB）和20%的甲基丁基酮（MIBK）组成的混合溶剂中获得了纳米颗粒的良好分散。使用这种溶剂混合物制备了由68.7 wt%的纳米颗粒和31.3 wt%的DPHA以及聚合引发剂组成的聚合物涂层油墨。混合薄膜的表面粗糙度较低，纳米颗粒在DPHA基质中形成了紧密堆积的结构。所得涂层具有优异的透明度和1.69的高折射率。
