期刊
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
卷 15, 期 2, 页码 303-311出版社
SPRINGER
DOI: 10.1007/s10008-010-1056-2
关键词
Layered double hydroxides; Dye; Intercalation; Nanocomposites; PVA
资金
- Brazilian agencies Financiadora de Estudos e Projetos (FINEP)
- Brazilian agencies Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Brazilian agencies Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
Zn2Al-layered double hydroxides (LDH) were intercalated with anions of the dyes Orange G, Orange II, and Methyl Orange by alkaline co-precipitation of aqueous solutions of zinc chloride and aluminum nitrate simultaneously in the presence of dye sodium salts. Transparent, homogeneous, and colored nanocomposite films were obtained by casting after dispersing the dye-intercalated LDHs (pigments) into commercial poly(vinyl alcohol) (PVA). The films were characterized by X-ray diffraction, ultraviolet-visible spectroscopy, thermal analysis (thermogravimetric analysis (TGA)) and differential thermal analysis (DTA)), and mechanical testing. Mechanical reinforcement of the PVA compounded with the dye-intercalated LDHs was achieved, and reasonable increases in Young's modulus and ultimate tensile strength were observed with as little as 0.5% added filler, while larger amounts tended to decrease the reinforcement effect. These results demonstrate the onset of a new range of potential applications for layered double hydroxide intercalated with dyes in the preparation of polymer composite multifunctional materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据