In this work, silica aerogel was modified by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-1-oxide (DOPO). Then DOPO-immobilized nanoparticles were used as a flame retardant to prepare flame-retardant polyurethane foams. Microscale combustion calorimeter and cone tests employed evaluate the retardancy of It found that both heat release rate total composites reduced with incorporation DOPO immobiliz...

Silica aerogels and their derivatives have outstanding thermal properties with exceptional values in the insulation industry. However, brittle nature restricts large-scale commercialization. Thus, enhancing mechanical strength without affecting insulating is essential. Therefore, for first time, highly thermally stable poly(acrylamide-co-acrylic acid) partial sodium salt used as a reinforcing p...

A novel composite adsorbent, Silica aerogel activated carbon was synthesized by sol-gel process atambient pressure drying method. The composite was characterized by Fourier transform infraredspectroscopy (FT-IR), scanning electron microscopy (SEM), differential scanning calorimetry(DSC) and Nitrogen adsorption / desorption isotherms (BET).In the present study, the mentioned adsorbent was used m...

Silica aerogels prepared by the sol-gel process are often used as solid desiccants in enthalpy wheels for dehumidifying ventilation air in air-conditioning systems. These hygroscopic materials have good moisture adsorption and desorption characteristics due to their porous structure. The current study is focused on the evaluation of the mass diffusivity of solid silica aerogels and silica aerog...

Fundamental understanding and characterization of neural response to substrate topography is essential in the development of next generation biomaterials for nerve repair. Aerogels are a new class of materials with great potential as a biomaterial. In this work, we examine the extension of neurites by PC12 cells plated on matrigel-coated and collagen-coated mesoporous aerogel surfaces. We have ...

Samples of nickel cobaltite, a mixed oxide occurring in the spinel structure which is currently extensively investigated because of its prospective application as ferromagnetic, electrocatalytic, and cost-effective energy storage material were prepared in the form of nanocrystals stabilized in a highly porous silica aerogel and as unsupported nanoparticles. Nickel cobaltite nanocrystals with av...

Silica aerogels are highly porous 3D nanostructures and have exhibited excellent physio-chemical properties. Although silica aerogels have broad potential in many fields, the poor mechanical properties greatly limit further applications. In this study, we have applied the finite volume method (FVM) method to calculate the mechanical properties of silica aerogels with different geometric propert...