نتایج جستجو برای: colloidal properties

تعداد نتایج: 883833  

Journal: :international journal of nanoscience and nanotechnology 2014
v. jafari a. allahverdi

colloidal nanosilica is currently being produced by various methods which are mainly high energy intensive and/or not environmentally friendly. it is therefore essential to develop new energy-efficient and environmentally friendly technologies. this paper introduces a new ultrasound assisted route based on alkali leaching of silica fume for synthesis of colloidal silica nanoparticles. the ef...

A. Allahverdi V. Jafari

Colloidal nanosilica is currently being produced by various methods which are mainly high energy intensive and/or not environmentally friendly. It is therefore essential to develop new energy-efficient and environmentally friendly technologies. This paper introduces a new ultrasound assisted route based on alkali leaching of silica fume for synthesis of colloidal silica nanoparticles. The ef...

2012
Gisely C. Lopes Renata Longhini Paulo Victor P. dos Santos Adriano A. S. Araújo Marcos Luciano Bruschi João Carlos P. de Mello

We report the results of a preliminary estimation of the stability of the dried extract from bark of Guazuma ulmifolia Lam. ("Mutamba"), with and without added colloidal silicon dioxide (CSD). The physical and chemical properties and the compatibility of CSD in the extract were evaluated for 21 days of storage under stress conditions of temperature (45 ± 2°C) and humidity (75 ± 5%). Thermogravi...

Journal: :Journal of Physics: Conference Series 2009

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