A comparison between micro- and nanocellulose-filled composite adhesives for oil paintings restoration

Cataldi, Annalisa; Berglund, Lars A.; Deflorian, F.; Pegoretti, Alessandro

doi:10.1080/20550324.2015.1117239

Cited by 32 publications

(21 citation statements)

References 19 publications

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“…The reason for this was due to the strong interfacial adhesion and hydrogen bonding between NCC and the polyester matrix. The nanoscale of NCC increased the mobility and introduced a large amount of interfacial area then allowed a better reaction with the polymeric matrix chains, hence provided a more significant effect in the overall dynamic mechanical properties of composites compared to microcellulose …”

Section: Thermal Properties Of Nanocellulose Compositesmentioning

confidence: 99%

Thermal properties of nanocellulose‐reinforced composites: A review

Gan

Sam

Abdullah

et al. 2019

J of Applied Polymer Sci

216

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Nanocellulose has received increasing attention in science and industry in recent years as a nanoscale material for the reinforcement of polymer matrix composites due to its superior mechanical properties, renewability, and biodegradability. New nanocellulose sources, modifications, and treatments are under development to reduce the high energy required during production and to create a more suitable industrial-scale production process. Thus, this paper reviews plant-based nanocellulose composites and their properties, with a focus on their thermal-related characteristics. The purpose of this review is to establish for readers the impact of the incorporation of nanocellulose on the thermal and dynamic mechanical properties of nanocellulose composites. Understanding of the thermal properties is important for researchers to assess the suitability of the nanocomposites for a variety of applications in response to new and evolving societal requirements.The first NFC was produced from wood by using high-pressure homogenization without any pretreatment. 11,12 However, this method is a very energy-intensive process. Therefore, chemical treatments such as 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) oxidation combined with mechanical and chemical

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Section: Thermal Properties Of Nanocellulose Compositesmentioning

confidence: 99%

Thermal properties of nanocellulose‐reinforced composites: A review

Gan

Sam

Abdullah

et al. 2019

J of Applied Polymer Sci

216

View full text Add to dashboard Cite

show abstract

“…where A 1655 and A 3450 were the area of IR peak at 1655 cm 21 and 3450 cm (respective to N-acetyl and hydroxyl groups of Cs) [31]. The chemical stability of Cs/nanocellulose biocomposites were evaluated through solubility and swelling tests.…”

Section: Characterization Of Cs/nanocellulose Biocompositesmentioning

confidence: 99%

“…In other words, Cs biocomposites tend to have higher cross-linking with the addition of OPF nanocellulose compared with COM nanocellulose. This finding may be attributed to the fact that OPF nanocellulose is smaller in size as compared with COM nanocellulose which could lead to the higher surface area available for interaction with Cs matrix [21,30]. This observation suggests that OPF nanocellulose is a good candidate for producing higher degree of cross-linking in Cs biocomposites.…”

Section: Chemical Structure and Dd % Of Cs And Its Biocompositesmentioning

confidence: 99%

“…Synthesized nanocellulose has low toxicity, high specific surface area, high crystallinity and high reactive chemical surface . Both microcellulose and nanocellulose are commonly used to improve the elastic and Young's modulus, , moisture barrier , crystallinity , enlarge the surface area , and with modifiable of surface properties . However, the positive effect is more pronounced for nanocellulose.…”

Section: Introductionmentioning

confidence: 99%

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Swelling behavior and chemical stability of chitosan/nanocellulose biocomposites

et al. 2018

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We investigated the chemical stability and swelling behaviour of synthesized biocomposites with varying concentrations of oil palm frond (OPF) nanocellulose and chitosan (Cs) for biomedical applications. Nanocellulose were extracted via acid hydrolysis method from OPFs and commercialized (COM) cellulose for comparative analysis. Condensation polymerization process was implemented to incorporate the nanocellulose and N, N’‐Methylenebisacrylamide (MBA) crosslinker into the Cs. Flory‐Huggin model was used to test their swelling behavior. Biocomposites in wet condition was observed through a variable pressure scanning electron microscopy (VP‐SEM). Results showed that increasing the amount of nanocellulose on the biocomposites can reduce the swelling of the Cs, and it is significantly reduced (up to 420% at pH 4, up to 576% at pH 7, up to 305% at pH 10) with the use of OPF nanocellulose. Moreover, adding OPF nanocellulose to Cs has improved its stability in acidic medium, basic medium, aprotic solvent, polar solvent, non‐polar solvent up to 90, 23, 23, 18, 22%, respectively. The swelling resistance and chemical stability of Cs biocomposites with OPF nanocellulose were better than using COM nanocellulose. POLYM. COMPOS., 39:E561–E572, 2018. © 2018 Society of Plastics Engineers

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“…Extensive research has been performed on the different types of adhesives used in conservation [12][13][14][15][16]. However, there are only few studies on the specific topic of canvas consolidation.…”

Section: Introductionmentioning

confidence: 99%

Novel nanomaterials to stabilise the canvas support of paintings assessed from a conservator’s point of view

et al. 2020

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During conservation treatment, consolidants and deacidifying agents can be added to the canvas of a painting to mechanically stabilise it and counteract the acidity that promotes degradation. In this study, new stabilising consolidants and deacidifying agents based on different nanoparticles (silica, calcium carbonate, magnesium oxide, cellulose nanofibrils and cellulose nanocrystals) were tested in comparison to traditionally used products. These products were applied onto different types of canvasses, and colour, gloss and pH changes were analysed. Conservators' subjective perceptions on the ease of application and the final visual results of the products were also assessed. Specifically, conservators were asked to examine the drying time and the ease of use of the products, as well as any changes in stiffness, darkening or whitening caused by the products on the canvasses. The best products were the ones based on calcium carbonate, magnesium oxide and cellulose nanocrystals. Cellulose nanofibrils are also promising consolidants because they are highly compatible with the chemical nature of painting canvasses.

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A comparison between micro- and nanocellulose-filled composite adhesives for oil paintings restoration

Cited by 32 publications

References 19 publications

Thermal properties of nanocellulose‐reinforced composites: A review

Thermal properties of nanocellulose‐reinforced composites: A review

Swelling behavior and chemical stability of chitosan/nanocellulose biocomposites

Novel nanomaterials to stabilise the canvas support of paintings assessed from a conservator’s point of view

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