A cork–silica xerogel nanocomposite with unique properties
Source abstract
Abstract
Taking advantage of the bonding between cork and silica xerogel, environmentally friendly nanocomposites are synthesized by a sol-gel process and dried at ambient pressure, with a superb combination of properties: densities near 600 kg m−3, surface areas of ~200 m2 g−1, mechanical strength up to 24 MPa, Shore D hardness up to 58 and, moreover, flame retardant. These properties are tunable by adjusting the synthesis parameters. The effects of cork granulometry and pre-swelling, and of the catalysis conditions are analyzed. Potential applications for these innovative nanocomposites are envisaged as replacement of thermoplastic polymers or hard wood, when non-flammability is desirable. The present approach opens a range of possibilities for developing unique composite materials that use natural and inexpensive raw resources and soft synthesis processes, with little energy requirements.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aerogels and thermal insulation · Pickering emulsions and particle stabilization · Surface Modification and Superhydrophobicity
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
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