Consolidation of very degraded cultural heritage wood artefacts using radiation curing of polyester resins

Moise, V.; Stănculescu, Ioana; Vasilca, Silvana; Cutrubinis, Mihalis; Pincu, Elena; Oancea, Petruţa; Răducan, Adina; Meltzer, Viorica

doi:10.1016/j.radphyschem.2018.11.028

Cited by 13 publications

(7 citation statements)

References 24 publications

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“…Another interesting approach was presented by Moise et al [39]. Using polyester acrylate styrene free resin and gamma curing, the authors observed the increase of thermal, chemical and photochemical stability.…”

Section: Consolidants Used For Wooden Elementsmentioning

confidence: 99%

Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

2020

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Vernacular buildings are usually constructed using materials at hand, including wood, natural stone and bricks (either clay or mud bricks). All those materials are exposed to a series of environmental factors, affecting their structure and integrity. The literature review was conducted using different databases (Scopus, Web of Science, ScienceDirect, SpringerLink) using as keywords the historical material, "heritage" and the terms regarding the desired effect, within the envisaged time period (2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018)(2019). The assessment of the results was performed by manual inspection (reading the entire article) and the selection of the works to be inserted in the current review was made by evaluating the contribution to the field. This review summarizes different aspects related to the restoration and conservation of wooden and masonry elements of traditional buildings, including materials used for biocidal interventions, protection against abiotic factors, cleaning and consolidation agents. Finally, a critical discussion regarding the current limitations and future perspectives concludes the review work, envisaging the role of researchers specialized in materials science in the context of cultural heritage conservation.

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Section: Consolidants Used For Wooden Elementsmentioning

confidence: 99%

Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

2020

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“…Polymers have been extensively used on wooden surfaces [ 1 , 5 , 6 ], including epoxy and polyester resins [ 5 ], polyurethanes [ 7 ], cellulose derivatives [ 8 ], and a wide range of thermoplastic polymers [ 9 , 10 ]. Within these, two of the most widely used due to their good optical properties are acrylate-based polymers, such as Paraloid B72 [ 11 , 12 , 13 , 14 , 15 ], and those derived from polyvinyl butyral (PVB) [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Consolidation of Fir Wood by Poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate) Treatment: Study of Surface and Mechanical Characteristics

2020

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The ability of poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate) (PVBVA) to consolidate Fir wood was studied in terms of the surface and mechanical properties’ changes. Two variables were considered to treat the wood: (i) the concentration (5 and 10 wt.%) of PVBVA solutions and (ii) the method of application (brushing and immersion). The presence of PVBVA on the wood surfaces was confirmed by infrared spectroscopy. Surface roughness measured by optical profilometry did not reveal changes in the topography of the samples, and appropriate visual appearance was confirmed. Contact angle measurements showed that a droplet of the 10%-PVBVA solution needed ~50 s to reach the same contact angle decreasing rate as that measured for the 5%-PVBVA solution, suggesting there was some kind of induction time till the spreading process was no longer controlled by the viscosity, but by the solution-wood interactions. Water contact angle (WCA) measurements proved a more hydrophobic surface of the PVBVA-treated samples, compared to untreated wood. Mechanical characterization of the samples was done macroscopically by a three-point bending test and locally by the Shore D and Martens hardness (MH). Only results from MH experiments provided comparative results, indicating that treatment with PVBVA solutions increased wood hardness locally, being enhanced with solution concentration. The best surface mechanical properties were obtained for the samples immersed in the 10%-PVBVA solution.

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“…Within the Cultural Heritage issues, the preservation of wooden artworks represents a challenging issue for restorators and scientists because of the acidic deterioration of lignin and lignocellulosic polysaccharides (Bugg et al 2011;Dedic et al 2013;Rasmussen et al 2017). Recent studies proved that the efficient protection of the wooden structures can be achieved by the consolidation with resins (Cavallaro et al 2017;Moise et al 2019), sustainable polymers (Walsh et al 2017), organosilicon compounds and alkaline nanoparticles, such as calcium/magnesium hydroxides (Giorgi et al 2005;Poggi et al 2014) and nanotubes filled with antiacid compounds (Cavallaro et al 2018). Prior to their preservation, the wooden artworks should be properly characterized in order to determine the structural and compositional features of the woods.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of historical woods from XIX century by thermogravimetry coupled with FTIR spectroscopy

2019

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Thermal and structural properties of historical woods from apparatuses of the Historical Collection of the Physics Instruments of the University of Palermo have been investigated by FTIR spectroscopy coupled with thermogravimetric (TG) analysis. Specifically, the wooden portions of apparatuses from XIX century have been studied. The thermal behavior of the wooden materials has been successfully interpreted on the basis of specific indexes determined by the quantitative analysis of the FTIR spectra. The kinetics of the wood pyrolysis have been investigated by using a non-isothermal approach based on model-free isoconversional procedures, such as Kissinger−Akahira−Sunose (KAS) and Friedman methods. Interestingly, the activation energy of the pyrolysis process reflects both the peculiar composition (related to the specific wooden taxon) and the conservation state of the historical woods. The thermogravimetric parameters have been correlated to the lignin index of the woods by proper experimental equations, which can be considered as a novel protocol to estimate the preservation conditions of historical woods from different taxon.

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Consolidation of very degraded cultural heritage wood artefacts using radiation curing of polyester resins

Cited by 13 publications

References 24 publications

Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

Consolidation of Fir Wood by Poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate) Treatment: Study of Surface and Mechanical Characteristics

Comparative study of historical woods from XIX century by thermogravimetry coupled with FTIR spectroscopy

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