Aiming to investigate the helpful solution to deal with the pollution of agricultural waste, multi-functional cellulose aerogels are developed successfully from biodegradable pineapple leaf fibers in combination with polyvinyl alcohol (PVA) as a cross-linker, followed by the cost-effective freeze drying process. Their highly porous 3D network with porosity of nearly 99% and remarkably low density of 0.013 – 0.033 g/cm3 give them the great capabilities of heat insulation and acoustic insulation. In fact, their thermal conductivities are valued between 0.030 to 0.034 W/m.K, indicating the abilities of PF aerogels to retain heat very well. In addition, with the same thickness, the noise reduction coefficient of PF aerogels can reach at 0.52, higher than that of acoustic absorber Basmel® in which implies their exceptional competitiveness with commercial products. The thermal jacket using PFs aerogel can keep water inside chilled below 0 oC for 6 hours and above 40 oC for 2.5 hours. Moreover, the PF aerogels coated with methyltrimethoxysilane (MTMS) exhibit excellent oil adsorption performance that they can absorb oil quickly up to nearly 40 g/g within 1 minute.

Pineapple aerogels from agricultural waste for engineering applications

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.