Cit:Bartholdy.etal:2021
| Autor | Bartholdy, J.; Klenz Larsen, P.; Brajer, I. |
| Jahr | 2021 |
| Titel | Hydrogels as poultice material for desalination – a preliminary study |
| Bibtex | @inproceedings { Bartholdy.etal:2021,
title = {Hydrogels as poultice material for desalination – a preliminary study}, booktitle = {Proceedings of SWBSS 2021 – Fifth International Conference on Salt Weathering of Buildings and Stone Sculptures}, year = {2021}, editor = {Lubelli, B.; Kamat, A.A.; Quist, W.J.}, pages = {215-224}, publisher = {TU Delft Open}, note = {In the field of conservation, hydrogels have shown efficacy in extracting embedded soot and dirt from wall paintings and other materials. The gels’ inherent properties are also advantageous and may be exploited in relation to desalination of fragile surfaces. In this pilot study, the ability of six hydrogels to absorb and extract salts was tested (Nanorestore Gel® Peggy 5 , Nanorestore Gel® Peggy 6, Nanorestore Gel® HWR, Nanorestore Gel® MWR and gel of 2-3% AgarArt). In the first experiment, changes in the gels’ physical characteristics in terms of weight and texture upon contact with different solutions of NaCl were registered. In the second experiment, the gels were applied to specimens of clay brick contaminated with sodium chloride. Their ability to extract salts was subsequently tested by immersing gels in water, and then measuring the Cl- content using test strips.The experiments show that some hydrogels absorb salts to a degree that make them suitable as poultic e materials in desalination. Furthermore, the salt uptake takes place in minutes, which is extraordinary compared to traditional poultice materials. The experiments also show which hydrogels are unsuitable as poultice material.The results of this pilot study give credence to further studies on the physical/chemical properties of hydrogels determining their ability to extract salts.}, key = {SWBSS 2021}, url = {https://predict.kikirpa.be/wp-content/uploads/2021/12/SWBSS2021_Procedings.pdf}, author = {Bartholdy, J. and Klenz Larsen, P. and Brajer, I.} } |
| DOI | |
| Link | |
| Bemerkungen | in: Lubelli, B.; Kamat, A.A.; Quist, W.J. (Hrsg.): Proceedings of SWBSS 2021 – Fifth International Conference on Salt Weathering of Buildings and Stone Sculptures,TU Delft Open 215-224 |
Eintrag in der Bibliographie
| [Bartholdy.etal:2021] | Bartholdy, J.; Klenz Larsen, P.; Brajer, I. (2021): Hydrogels as poultice material for desalination – a preliminary study. In: Lubelli, B.; Kamat, A.A.; Quist, W.J. (Hrsg.): Proceedings of SWBSS 2021 – Fifth International Conference on Salt Weathering of Buildings and Stone Sculptures,TU Delft Open 215-224, Webadresse. |  |
Keywords[Bearbeiten]
Desalination, poultices, hydrogels, salt damage, wall paintings
Abstract[Bearbeiten]
In the field of conservation, hydrogels have shown efficacy in extracting embedded soot and dirt from wall paintings and other materials. The gels’ inherent properties are also advantageous and may be exploited in relation to desalination of fragile surfaces. In this pilot study, the ability of six hydrogels to absorb and extract salts was tested (Nanorestore Gel® Peggy 5 , Nanorestore Gel® Peggy 6, Nanorestore Gel® HWR, Nanorestore Gel® MWR and gel of 2-3% AgarArt). In the first experiment, changes in the gels’ physical characteristics in terms of weight and texture upon contact with different solutions of NaCl were registered. In the second experiment, the gels were applied to specimens of clay brick contaminated with sodium chloride. Their ability to extract salts was subsequently tested by immersing gels in water, and then measuring the Cl- content using test strips.The experiments show that some hydrogels absorb salts to a degree that make them suitable as poultice materials in desalination. Furthermore, the salt uptake takes place in minutes, which is extraordinary compared to traditional poultice materials. The experiments also show which hydrogels are unsuitable as poultice material.The results of this pilot study give credence to further studies on the physical/chemical properties of hydrogels determining their ability to extract salts.