Nanomeghyas

Nanomeghyas

Synthesis and Investigation on Physical Properties of CelluloseMagnesium Hydroxide Nanocomposite Aerogel for Application as Heat Insulating

Authors
S. Saffari
M. Adelifard
S.A. Nabavi Amri
Abstract
Cellulose aerogels is considered as one of the most promising eco-friendly heat insulating materials due to its abundant internal pores, low density, low thermal conductivity and high mechanical strength. However, cellulose aerogel is easy to ignite, which makes it impossible to be used as building materials or domestic appliances. In this regards, in this research first nanocellulose aerogel prepared from waste newspaper and then for the flame retardant modification to it, cellulose -magnesium hydroxide nanocomposite aerogels synthesized. This environmentally friendly method for the preparation of flame retardant nano‌composites not only reduces the waste newspaper pollution but also promotes the application of cellulose aerogels in heat insulating materials. For the studied samples some characterizations such as X-ray diffraction, Surface morphology, density and porosity calculation and the flame retardant properties were carried out.
Keywords
Nanocellulose Aerogel
Magnesium hydroxide
Waste newspaper
Flame retardant
Porosity
 
[1] A. Du, et al., “A special material or a new state of matter: a review and reconsideration of the aerogel,” Materials, Vol. 6, pp. 941-968, 2013.
[2] J.Fricke, “Aerogels-highly tenuous solids with fascinating properties,” Journal of non-Crystalline solids, Vol. 100, pp. 169-173, 1988.
[3] Burger, T. and J. Fricke, “Aerogels: Production, modification and applications,” Berichte der Bunsengesellschaft für physikalische Chemie, Vol. 102, pp. 1523-1528, 1998.
[4] H. Gesser, P. Goswami, “Aerogels and related porous materials,” Chemical Reviews, Vol. 89, pp. 765-788, 1989.
[5] A.C. Pierre, G.M. Pajonk, “Chemistry of aerogels and their applications,” Chemical Reviews, Vol. 102, pp. 4243-4266, 2002.
[6] L.Kumari, et al., “Synthesis, characterization and optical properties of Mg(OH)2 micro/nano structure and its conversion to MgO,” Ceramics International, Vol. 35, pp. 3355-3364, 2009. [7] P.Scherrer, G?ttinger Nachrichten Math. Phys., Vol.2, pp.98–100, 1918. [8] Y. Han, et al., “Flame retardant, heat insulating cellulose aerogels from waste cotton fabrics by in situ formation of magnesium hydroxide nanoparticles in cellulose gel nanostructures,” ACS Sustainable Chemistry

  • Receive Date 30 October 2020