期刊
APPLIED SURFACE SCIENCE
卷 435, 期 -, 页码 195-202出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.11.063
关键词
Nanocomposites; Pickering emulsion; Surface analysis; Optical microscopy; Pigment printing
类别
资金
- National Natural Science Foundation of China [21406135]
- Key Research Project of Shaanxi Province [2017GY-187]
- Shaanxi Provincial Education Department Serves Local Special Project [17JF002]
- Scientific Research Innovation Team of Shaanxi University of Science and Technology [TD12-03]
This paper presents a facile and efficient synthesis method to fabricate epoxy-acrylate copolymer/nanosilica latex via Pickering emulsion polymerization stabilized by silica sol. The effects of solid contents, silica concentration and polymerization time on emulsion polymerization were studied. The core-shell epoxy-acrylate copolymer/nano-silica was obtained with average diameter 690 nm, was observed by Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS). The formation mechanism of epoxy-acrylate copolymer/nano-silica emulsion polymerization was proposed through observing the morphology of latex particles at different polymerization time. Fourier Transformation Infrared (FT-IR) and Thermogravimetric Analysis (TGA) were used to study structure and thermostability of the composites. Morphology of the latex film was characterized by Scanning Electron Microscope (SEM). The results indicated that nano-silica particles existed in the composite emulsion and could improve the thermal stability of the film. The epoxy-acrylate copolymer/nano-silica latex was used as binder applied to cotton fabric for pigment printing. The application results demonstrated that Pickering emulsion stabilized by silica sol has good effects in the pigment printing binder without surfactant. Compared with commodity binder, the resistance to wet rubbing fastness and soaping fastness were improved half grade. (C) 2017 Elsevier B.V. All rights reserved.
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