Preparation of MPS (mercaptopropyltrimethoxysilane)-coated SiO2 nanoparticle and its effect on mechanical properties of surface treated SiO2/EVA nanocomposite
| Autor: | Hyo-Sim Kang, Mi-Na Park, Young Soo Kang, Young-Joo Kim, Seok-Young Yoon, Sung Woo Kim |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
Nanocomposite General Physics and Astronomy Ethylene-vinyl acetate Sodium silicate Hydrochloric acid Surfaces Coatings and Films Tetraethyl orthosilicate chemistry.chemical_compound chemistry Chemical engineering Emulsion Polymer chemistry otorhinolaryngologic diseases Ceramics and Composites Surface modification Dispersion (chemistry) |
| Zdroj: | Composite Interfaces. 14:505-517 |
| ISSN: | 1568-5543 0927-6440 |
| DOI: | 10.1163/156855407781291191 |
| Popis: | SiO2 nanoparticles were synthesized from different three precursors, namely, TEOS (tetraethyl orthosilicate), sodium metasilicate and sodium silicate. First, SiO2 nanoparticles were prepared by a controlled hydrolysis of TEOS. In another method, SiO2nanoparticles were prepared by precipitation in an emulsion medium from sodium metasilicate and hydrochloric acid solution. Finally, SiO2 nanoparticles were also synthesized from sodium silicate by an emulsion method. In this study, we concentrated on dispersion and compatibility between nanosized SiO2 particles and EVA (ethylene vinyl acetate). Therefore, surface modification of synthesized SiO2 nanoparticles was accomplished with MPS (3-mercaptopropyl trimethoxysilane) to enhance homogeneous dispersion and compatibility between the obtained SiO2 nanoparticles and EVA. Finally, nanocomposites of surface treated SiO2 nanoparticles and EVA were prepared. By inserting the MPS-coated SiO2 nanoparticles into EVA, abrasion resistance and hardness were increased rem... |
| Databáze: | OpenAIRE |
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