Nonflammable Alginate Nanocomposite Aerogels Prepared by a Simple Freeze-Drying and Post-Cross-Linking Method
Citations Over TimeTop 10% of 2015 papers
Abstract
Nonflammable materials based on renewable ammonium alginate and nano fillers (nanoscale magnesium hydroxide, nanoscale aluminum hydroxide, layered double hydroxide, sodium montmorillonite, and Kaolin) were fabricated through a simple, environmentally friendly freeze-drying process, in which water was used as a solvent. A simple and economic post-cross-linking method was used to obtain homogeneous samples. The microstructure of the cross-linked alginate aerogels show three-dimensional networks. These materials exhibit low densities (0.064-0.116 g cm(-3)), low thermal conductivities (0.024-0.046 W/m K), and useful mechanical strengths (0.7-3.5 MPa). The aerogels also exhibit high thermal stabilities and achieve inherent nonflammability with limiting oxygen indexes (LOI) higher than 60. Related properties were conducted and analyzed by cone calorimeter (CC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). These results combine to suggest promising prospects for use of these aerogel nanocomposites in a range of applications.
Related Papers
- → The use of thermogravimetric analysis technique for the characterization of construction materials(2008)77 cited
- → Utilization of aerogel in building construction –A Review(2020)19 cited
- → Kinetic analysis of thermogravimetric data on some nickel(II) N-alkyldithiocarbamates(1989)25 cited
- → Thermogravimetric analysis for the characterization and comparative analysis of polyvinyl chloride (PVC) wall panel(2023)1 cited
- Aerogel + Aerogel = Aerogel²Developments on Aerogel-Aerogel Composites(2011)