A Study of Adhesion of Silicon Dioxide on Polymeric Substrates for Optoelectronic Applications

Amendola, Eugenio; Cammarano, Aniello; Acierno, Domenico

doi:10.5772/14603

Cited by 3 publications

(3 citation statements)

References 37 publications

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“…Due to its higher color stability (minimum color variation) 32 and the active role of free OH groups belonging to open-caged silsesquioxanes present at the outermost surface layer in the stabilization process (behavior similar to UV filters) 33 , AMF can be regarded as an anti-ageing polymer that succeeded to effectively absorb the UV light and limited the fade phenomenon 32 . Apart from conferring chemical inertness, corrosion and wear resistance, low gas permeation and high transparency 34 , the formation of ladder-like silsesquioxane structures by means of photochemical transformations has attractive features in terms of low cost, non-toxicity and eco-friendliness. In addition, the migration and local reorganization of fluoroalkyl and silsesquioxane units at the outermost layer and formation of microphase-segregated domains were found to induce a good water repellency and increased the overall resistance of AMF toward UV ageing.…”

Section: Photobehavior Of Pb72 and Amf Coatings During Accelerated Ag...mentioning

confidence: 99%

Protective coatings for ceramic artefacts exposed to UV ageing

Oancea¹,

Bodi

Cernescu³

et al. 2023

npj Mater Degrad

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The commercial acrylic copolymer Paraloid B72 (PB72) and a synthesized nanostructured material (AMF) bearing silsesquioxane, methacrylate and fluorine units were analyzed to assess their performances as protective coatings for the conservation of Neolithic Cucuteni ceramic pottery when submitted to UV ageing. In the context of comparative evaluation of the protective efficiency, the present paper reports the use of a functional coating that operates via specific photochemical transformations at the coating-air interface as a UV resistant protection coating for cultural heritage artefacts. The main factors that influenced the photo-degradation behavior of the polymeric materials included their structure, the properties at the polymer/air interfaces, and the preferential orientation of functional groups at the surface of the polymeric coatings.

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Section: Photobehavior Of Pb72 and Amf Coatings During Accelerated Ag...mentioning

confidence: 99%

Protective coatings for ceramic artefacts exposed to UV ageing

Oancea¹,

Bodi

Cernescu³

et al. 2023

npj Mater Degrad

View full text Add to dashboard Cite

show abstract

“…Due to its higher color stability (minimum color variation) 33 and the active role of free OH groups belonging to open-caged silsesquioxanes present at the outermost surface layer in the stabilization process (behavior similar to UV filters) 34 , AMF can be regarded as an anti-ageing polymer that succeeded to effectively absorb the UV light and limited the fade phenomenon 33 . Apart from conferring chemical inertness, corrosion and wear resistance, low gas permeation and high transparency 35 , the formation of ladder-like silsesquioxane structures by means of photochemical transformations has attractive features in terms of low cost, non-toxicity and eco-friendliness. In addition, the migration and local re-organization of fluoroalkyl and silsesquioxane units at the outermost layer and formation of microphasesegregated domains were found to induce a good water repellency and increased the overall resistance of AMF toward UV ageing.…”

Section: Scheme 4 Photo-oxidative Degradation Pathway Of Amfmentioning

confidence: 99%

Protective coatings for ceramic artefacts exposed to UV ageing

Olaru

Oancea

Bodi

et al. 2022

Preprint

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The commercial acrylic copolymer Paraloid B72 (PB72) and a newly synthesized nanostructured material (AMF) bearing silsesquioxane, methacrylate and fluorine units were analyzed to assess their performances as protective coatings for the conservation of Neolithic Cucuteni ceramic pottery when submitted to UV ageing. In the context of comparative evaluation of the protective efficiency, the present paper reports the first use of a functional coating that operates via specific photochemical transformations at the coating-air interface as a UV resistant protection coating for cultural heritage artefacts.

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“…Nano‐indentation and nanoscratch testing are alternative approaching methods. Both techniques have become important tools for probing the mechanical properties at the nanoscale materials …”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior at nanoscale of chitosan‐coated PE surface

Stoleru¹,

Tsekov

Kotsilkova

et al. 2015

J of Applied Polymer Sci

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Chitosan coating of polyethylene (PE) was proposed as a new procedure to improve its biocompatibility and surface properties. The functionalization of the PE film surface by covalent bonding of chitosan coating and its effect on the surface mechanical properties, as surface elasticity, stiffness, and adhesion (that are important in different biological processes) were investigated by nano-indentation, scratch, and atomic force microscopy. It has been established that chitosan grafting onto corona functionalized PE surface using various coupling agents significantly improves the surface hardness and elastic modulus although they decrease in depth of the layer. Compared to the neat PE substrate, the chitosan coated samples show significant improved friction properties and tear resistance. The surface roughness features correlate with the micro-mechanical parameters. Therefore, the covalent immobilization of the chitosan onto PE leads to a stable coating with better mechanical performance being recommended as a promising material for medical applications and food packaging.

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A Study of Adhesion of Silicon Dioxide on Polymeric Substrates for Optoelectronic Applications

Cited by 3 publications

References 37 publications

Protective coatings for ceramic artefacts exposed to UV ageing

Protective coatings for ceramic artefacts exposed to UV ageing

Protective coatings for ceramic artefacts exposed to UV ageing

Mechanical behavior at nanoscale of chitosan‐coated PE surface

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