Thermally Superstable Cellulosic-Nanorod-Reinforced Transparent Substrates Featuring Microscale Surface Patterns
| Autor: | Xianpeng Yang, Suteera Witayakran, Md. Iftekhar Shams, Subir Kumar Biswas, Hiroyuki Yano, Supachok Tanpichai |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Nanocomposite Materials science Polymer nanocomposite General Engineering General Physics and Astronomy 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Pickering emulsion Flexible electronics 0104 chemical sciences Nanocellulose chemistry General Materials Science Nanorod Thermal stability Composite material 0210 nano-technology |
| Zdroj: | ACS Nano. |
| ISSN: | 1936-086X 1936-0851 |
| Popis: | The recent rapid expansion of thin-film, bendable, and wearable consumer (opto)electronics demands flexible and transparent substrates other than glass. Plastics are the traditional choice, but they require amelioration because of their thermal instability. Here, we report the successful conversion of a soft and thermally vulnerable polymer into a highly thermally stable transparent nanocomposite material. This is achieved by the meticulous choice of a polymer with a glass-transition temperature below 0 °C that gives stable mechanics above room temperature, reinforcing the polymer with a load-bearing hierarchical network of the incredibly strong and stable natural material: cellulose nanorods. Owing to the Pickering emulsification process, the nanocomposites inherit the self-assembled structural hierarchy from the cellulose nanorod-encapsulated resin droplets. The ameliorated nanocomposites have highly desirable high-temperature endurance (∼150-180 °C) in terms of the thermomechanical, thermodimensional, and thermo-optical performance. Any photonic nano- or microstructures can be directly molded on the surface of the nanocomposites in high precision for better light management in photonic and opto-electronic applications. The highlight of this work is the demonstration of a highly thermally stable microlens array on the ameliorated transparent nanocomposite. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|