Control of the electrical conductivity of composites of antimony doped tin oxide (ATO) nanoparticles and acrylate by grafting of 3-methacryloxpropyltrimethoxysilane (MPS)
| Autor: | Willem Posthumus, Jozua Laven, Gijsbertus de With, Rob van der Linde |
|---|---|
| Přispěvatelé: | Materials and Interface Chemistry |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Acrylate
Materials science chemistry.chemical_element Nanoparticle TMPTA Conductivity Tin oxide Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials chemistry.chemical_compound Colloid and Surface Chemistry Antimony chemistry Surface modification Antimony oxide Composite material |
| Zdroj: | Journal of Colloid and Interface Science, 304(2), 394-401. Academic Press Inc. |
| ISSN: | 0021-9797 |
| DOI: | 10.1016/j.jcis.2006.09.001 |
| Popis: | The effect of the addition of antimony doped tin oxide (ATO) nanoparticles on the electrical conductivity of acrylate films is described. To enable dispersing of ATO in acrylate matrices, 3-methacryloxypropyltrimethoxysilane (MPS) was grafted on the surface of the filler. The amount of MPS used for this surface modification was found to strongly affect the electrical conductivity. Surface modification with a large amount of MPS resulted in colloidally stable dispersions of ATO, leading to a homogeneous distribution. Surface modification with small amounts of MPS led to instable ATO dispersions and aggregation of ATO into a fractal type network, which gives a much higher conductivity especially at low-volume fractions. For composites with a fractal type ATO network a second effect was found. Decreasing the amount of on ATO grafted MPS resulted in an increase of the electrical conduction between the ATO particles. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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