The Effect of Binder Adsorption on the Rheological Behavior of Silicon Nitride Suspensions
| Autor: | Koji Shibata, Yasuhiko Kohtoku, Yanagisawa Hiroshi, Tetsuo Yamada |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Fluid Flow and Transfer Processes
Langmuir Aqueous solution Materials science Process Chemistry and Technology technology industry and agriculture Filtration and Separation Catalysis Suspension (chemistry) Viscosity chemistry.chemical_compound Adsorption Rheology Silicon nitride chemistry Chemical engineering Brønsted–Lowry acid–base theory |
| Zdroj: | Journal of the Society of Powder Technology, Japan. 33:717-721 |
| ISSN: | 1883-7239 0386-6157 |
| DOI: | 10.4164/sptj.33.717 |
| Popis: | The effect of organic binder adsorption on the rheological behavior of aqueous silicon nitride suspensions was studied to find the optimum powder characteristics for forming. The adsorption isotherms of polyvinylalcohol (PVA) in the suspensions were of the Langmuir type. The Si-OH group on the surface of silicon nitride particles decreased markedly due to the adsorption of PVA. This suggested the adsorption on the Bronsted acid points of the particles. The viscosity of the suspensions was controlled by the adsorption of organic binder on silicon nitride particles. The low binder affinity powder was suitable for preparing a suspension with low viscosity at high binder content in the suspension. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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