1. Halloysite nanotubes as sustainable nanofiller for paper consolidation and protection.
- Author
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Cavallaro, Giuseppe, Lazzara, Giuseppe, Milioto, Stefana, and Parisi, Filippo
- Subjects
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HALLOYSITE , *NANOTUBES , *HYDROPHOBIC compounds , *THERMAL analysis , *CHEMICAL decomposition , *CRYSTAL morphology - Abstract
We investigated the filling process of cellulose-based paper with natural clay nanotubes and their mixtures with hydroxypropyl cellulose (HPC) that is commonly used as glue and consolidant for degraded paper. A comprehensive characterization of the materials was carried out through morphology, wettability, thermal degradation, and tensile properties. The treatment with halloysite nanotubes generated a decrease of the paper mechanical performance and did not alter the thermal properties. The co-presence of HPC and nanoparticles generated a more uniform nanotubes distribution in the paper fibrous structure and a significant enhancement of both the mechanical properties and the surface hydrophobicity with respect to the HPC treatment. This work proposes the use of halloysite/HPC mixture in a new protocol for paper consolidation and represents a starting point to develop, with a biocompatible approach, smart composite material in which the nanotube cavity is filled with active species for paper protection or active response to external stimuli. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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