Ethylene-Vinyl Acetate Copolymers as Potential Thermoplastic Modifiers of Photopolymer Compositions

Bazhanov, Dmitriy A; Poteryaev, Arkadiy A.; Shapagin, A. V.; Щербина, А. А.

doi:10.3390/polym15010131

Cited by 3 publications

(4 citation statements)

References 60 publications

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“…The method is based on in situ registration of optical density in the conjugation region of components and fixation of its changes in isobaric-isothermal conditions. 51 The light source was a helium-neon laser with a wavelength of λ ≈ 632.8 nm. We used prefabricated wedge-shaped cuvettes consisting of a special retainer and two plane-parallel glass plates, the inner sides of which are covered with a layer of translucent (translutent) NiCr alloy (reflection coefficient 60%-70%).…”

Section: Characterization Methodsmentioning

confidence: 99%

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Preparation and study of novel UV‐curable alkyd‐siloxane coating materials

Golubev,

Baranova,

Bazhanov

et al. 2024

J of Applied Polymer Sci

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A material capable of curing due to UV irradiation based on an alkyd oligomer and oligoorganosilsesquioxanes (OOSs) with functional thiol groups was obtained. Using microinterferometry, it was shown that the alkyd oligomer and OOS are completely compatible (mutually soluble). The resulting alkyd‐siloxane composition was cured under the action of UV irradiation due to reaction between double bonds of alkyd oligomer and thiol‐groups of silsesquioxane oligomer. The curing reaction takes 5 min with formation of coating, containing 99% of gel fraction, which is in 30 times faster in comparison with the classical method of alkyd curing in the presence of siccatives. The hydrophobicity of alkyd‐siloxane coatings also increases and varies depending on the content of OOS. The introduction of 50% OOS into the alkyd oligomer makes it possible to increase the water contact angle by 10° relative to the coating based on pure alkyd. A similar dependence is observed when studying the thermal stability of coatings. Thus, even with the introduction of 10% OOS into alkyd oligomer, the temperature at which a loss of 50% of mass occurs increases by 24°C relative to coatings based on a pure alkyd oligomer.

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Section: Characterization Methodsmentioning

confidence: 99%

“…The interferometry studies were carried out on the ODA‐2 laser interferometer (IPCE, RAS). The method is based on in situ registration of optical density in the conjugation region of components and fixation of its changes in isobaric‐isothermal conditions 51 . The light source was a helium‐neon laser with a wavelength of λ ≈ 632.8 nm.…”

Section: Methodsmentioning

confidence: 99%

Preparation and study of novel UV‐curable alkyd‐siloxane coating materials

Golubev,

Baranova,

Bazhanov

et al. 2024

J of Applied Polymer Sci

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“…A red laser ( λ = 632 nm) was used as a light source. The processing of the results did not differ from the traditional one 21,22 . Interference measurements were carried out with contact in a diffusion cell of PVC with EDOS, PVC with a mixture of EDOS and RHA 1 , PVC with a mixture of EDOS and SW.…”

Section: Methodsmentioning

confidence: 99%

“…The processing of the results did not differ from the traditional one. 21,22 Interference measurements were carried out with contact in a diffusion cell of PVC with EDOS, PVC with a mixture of EDOS and RHA 1 , PVC with a mixture of EDOS and SW. Uniform distribution of the dispersed filler in the plasticizer was achieved by ultrasonic action on an ultrasonic disperser UZDN-2 T (Russia) with an operating frequency of the generator of ultrasonic oscillations of 22 kHz and an output electrical nominal power of the generator of 400 W.…”

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confidence: 99%

Influence of rice husk ash and wollastonite on plasticizer migration in polyvinyl chloride system

Sadykova,

Budylin,

Nikulova

et al. 2023

J of Applied Polymer Sci

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The influence of rice hull ash and wollastonite on the migration problem of plasticizer EDOS from polyvinyl chloride (PVC) has been studied. The methods of optical interferometry, IR spectroscopy, viscometry, SEM and EDX were used to study the mutual solubility and diffusion mobility in the PVC‐EDOS system in the presence fillers and without them, as well as the phase structure of plasticized filled systems. It is shown that in a fully compatible PVC‐EDOS system, a diffusion mixing mechanism is observed, and the interdiffusion coefficients increase from 10−8 to 10−6 (cm2/s) with increasing plasticizer concentration. The introduction of a dispersed filler somewhat reduces the interdiffusion coefficients. The sorption of the plasticizer on the surface of the dispersed filler has been established, which leads to a decrease in the migration of EDOS from the composition. It was found that the introduction of wollastonite leads to a smaller increase in viscosity and an improvement in the technological properties of the system. And the introduction of environmentally neutral rice husk ash reduces the migration of the plasticizer and improves the stability of the composition during operation, which also has a positive effect on the environmental friendliness of this system.

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Polymer/Graphene Nanocomposites via 3D and 4D Printing—Design and Technical Potential

et al. 2023

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Graphene is an important nanocarbon nanofiller for polymeric matrices. The polymer–graphene nanocomposites, obtained through facile fabrication methods, possess significant electrical–thermal–mechanical and physical properties for technical purposes. To overcome challenges of polymer–graphene nanocomposite processing and high performance, advanced fabrication strategies have been applied to design the next-generation materials–devices. This revolutionary review basically offers a fundamental sketch of graphene, polymer–graphene nanocomposite and three-dimensional (3D) and four-dimensional (4D) printing techniques. The main focus of the article is to portray the impact of 3D and 4D printing techniques in the field of polymer–graphene nanocomposites. Polymeric matrices, such as polyamide, polycaprolactone, polyethylene, poly(lactic acid), etc. with graphene, have been processed using 3D or 4D printing technologies. The 3D and 4D printing employ various cutting-edge processes and offer engineering opportunities to meet the manufacturing demands of the nanomaterials. The 3D printing methods used for graphene nanocomposites include direct ink writing, selective laser sintering, stereolithography, fused deposition modeling and other approaches. Thermally stable poly(lactic acid)–graphene oxide nanocomposites have been processed using a direct ink printing technique. The 3D-printed poly(methyl methacrylate)–graphene have been printed using stereolithography and additive manufacturing techniques. The printed poly(methyl methacrylate)–graphene nanocomposites revealed enhanced morphological, mechanical and biological properties. The polyethylene–graphene nanocomposites processed by fused diffusion modeling have superior thermal conductivity, strength, modulus and radiation- shielding features. The poly(lactic acid)–graphene nanocomposites have been processed using a number of 3D printing approaches, including fused deposition modeling, stereolithography, etc., resulting in unique honeycomb morphology, high surface temperature, surface resistivity, glass transition temperature and linear thermal coefficient. The 4D printing has been applied on acrylonitrile-butadiene-styrene, poly(lactic acid) and thermosetting matrices with graphene nanofiller. Stereolithography-based 4D-printed polymer–graphene nanomaterials have revealed complex shape-changing nanostructures having high resolution. These materials have high temperature stability and high performance for technical applications. Consequently, the 3D- or 4D-printed polymer–graphene nanocomposites revealed technical applications in high temperature relevance, photovoltaics, sensing, energy storage and other technical fields. In short, this paper has reviewed the background of 3D and 4D printing, graphene-based nanocomposite fabrication using 3D–4D printing, development in printing technologies and applications of 3D–4D printing.

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Ethylene-Vinyl Acetate Copolymers as Potential Thermoplastic Modifiers of Photopolymer Compositions

Cited by 3 publications

References 60 publications

Preparation and study of novel UV‐curable alkyd‐siloxane coating materials

Preparation and study of novel UV‐curable alkyd‐siloxane coating materials

Influence of rice husk ash and wollastonite on plasticizer migration in polyvinyl chloride system

Polymer/Graphene Nanocomposites via 3D and 4D Printing—Design and Technical Potential

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