In-situ monitoring of the evolution of the optical properties for UV LED irradiated polymer-based photo-induced nanocomposites

Smirnov, A. A.; Kudryashov, Andrey; Agareva, N.; Afanasiev, Andrey; Gusev, S. A.; Tatarskiy, D. A.; Bityurin, N.

doi:10.1016/j.apsusc.2019.04.272

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…In order to expand the application field of SLA, research has been intensified in the last few years to obtain new composite materials with tailored properties that can be processed by this technology [ 2 , 4 , 5 , 18 ], for example by adding metal or ceramic phases to improve their mechanical and functional properties [ 19 , 20 , 21 ]. Within this context, there are reported works that focus on the incorporation of different types of nanoparticles (NPs) in commercially available acrylate resins to modify the electrical [ 22 ], optical [ 23 ], mechanical [ 24 ], and thermal [ 25 ] behaviour, among others. Metallic NPs offer appealing physicochemical properties, i.e., optical, and electronic properties, due to their high surface area to volume ratio.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, the optical properties of Ag NPs have been historically exploited in decorative pigments for jewellery/handicrafts, staining glass, or ceramics [ 26 , 27 , 28 , 29 ]. Over the last decades, Ag NPs have found use in many areas, such as catalysis [ 30 , 31 ], optical and electro-optical devices [ 23 , 32 ], surface-enhanced Raman spectroscopy (SERS) [ 33 , 34 ], and antimicrobial agents [ 14 , 35 ]. Ag NPs are promising nanofillers to obtain composites with electrical and optical properties to extend the applicability of SLA including the electronic or biomedical fields [ 13 , 14 , 36 , 37 , 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Silver Nanocomposites for Stereolithography: In Situ Formation of Nanoparticles

et al. 2022

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Additive Manufacturing (AM) offers remarkable advantages in relation to traditional methods used to obtain solid structures, such as the capability to obtain customized complex geometries adapted to individual requirements. The design of novel nanocomposites suitable for AM is an excellent strategy to widen the application field of these techniques. In this work, we report on the fabrication of metal/polymer nanocomposites with enhanced optical/electrical behaviour for stereolithography (SLA). In particular, we analyse the in situ generation of Ag nanoparticles (NPs) from Ag precursors (AgNO3 and AgClO4) within acrylic resins via SLA. Transmission electron microscopy (TEM) analysis confirmed the formation of Ag NPs smaller than 5 nm in all nanocomposites, providing optical activity to the materials. A high density of Ag NPs with a good distribution through the material for the larger concentration of AgClO4 precursor tested was observed, in contrast to the isolated agglomerations found when the precursor amount was reduced to 0.1%. A significant reduction in the electrical resistivity up to four orders of magnitude was found for this material compared to the unfilled resin. However, consumption of part of the photoinitiator in the formation process of the Ag NPs contributed to a reduction in the polymerization degree of the resin and, consequently, degraded the mechanical properties of the nanocomposites. Experiments with longer curing times showed that, for the higher AgClO4 concentrations tested, post-curing times of 300 min allowed an 80% degree of polymerization to be achieved. These conditions turned these materials into promising candidates to obtain solid structures with multifunctional properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of Silver Nanocomposites for Stereolithography: In Situ Formation of Nanoparticles

et al. 2022

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Heterogeneous Models for UV Induced Precursor-Mediated Growth of CdS Nanoparticles in PMMA Films: Fitting Experimental Curves and Core–Shell Growth

Bityurin,

Sapogova,

Kudryashov

et al. 2024

ACS Omega

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Experimental data on the absorbance evolution of an UV irradiated PMMA film containing the TEDBCd CdS precursor published earlier are fitted by the authors' recently published model of precursor-mediated heterogeneous nucleation and growth of nanoparticles in polymer films. Two types of nucleation centers are considered. The centers of the first type are nanoparticles initially existing in the material. The centers of the second type belong to polymer chains. The study shows that the experimental data indicate a wide size distribution of the obtained CdS nanoparticles. For the estimated parameter values, the problem of core−shell nanoparticle growth where the nucleation centers of the first type are nanoparticles of a different nature is considered.

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Optical and Color Investigation of the Effect of Laser Radiation on Polyaniline/Polyvinyl Pyrrolidone/Zinc Sulfide Nanocomposite Films

Nouh,

Benthami,

Abbady

et al. 2023

Journal of Macromolecular Science, Part B

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In-situ monitoring of the evolution of the optical properties for UV LED irradiated polymer-based photo-induced nanocomposites

Cited by 6 publications

References 33 publications

Synthesis of Silver Nanocomposites for Stereolithography: In Situ Formation of Nanoparticles

Synthesis of Silver Nanocomposites for Stereolithography: In Situ Formation of Nanoparticles

Heterogeneous Models for UV Induced Precursor-Mediated Growth of CdS Nanoparticles in PMMA Films: Fitting Experimental Curves and Core–Shell Growth

Optical and Color Investigation of the Effect of Laser Radiation on Polyaniline/Polyvinyl Pyrrolidone/Zinc Sulfide Nanocomposite Films

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