Preparation and Characterization of Thermally Expandable Microspheres
| Autor: | Lu Hai Li, Shu Ying Chen, Zhi Cheng Sun |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Scanning electron microscope Mechanical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Monomer chemistry Chemical engineering Mechanics of Materials Polymer chemistry Copolymer General Materials Science Suspension polymerization Methyl methacrylate Acrylonitrile 0210 nano-technology Methyl acrylate Thermal analysis |
| Zdroj: | Materials Science Forum. 852:596-600 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.852.596 |
| Popis: | The thermally expandable microspheres were prepared through suspension polymerization with acrylonitrile (AN), methyl methacrylate (MMA) and methyl acrylate (MA) as monomers. The experimental results showed that it was possible to apply suspension polymerization to prepare the high foaming ratio and equally distributed microcapsules when water and oil phase volume ratio of 3:1, AN-MMA-MA in the proportion of 70%/20%/10% (m/m/m), and 1,4-butanediol dimethacrylate (BDDMA) as the crosslinking agents. Furthermore, the structure and property of shell and nuclear were characterized by Infrared Spectra (IR), Scanning Electron Microscopy (SEM) and Thermal analysis (TG, DTG). The structure characteristics and effective factors of copolymer coated core materials, morphologies, particle sizes, foaming temperature and ratio of microcapsules were investigated in this paper. |
| Databáze: | OpenAIRE |
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