Research and Development of "Gelatin–Conductive Polymer" Composites for Electromagnetic Compatibility

Гареев, К. Г.; Bagrets, Vladislava S.; Khmelnitskiy, Ivan K.; Ivanitsa, Maria G.; Testov, Dmitriy O.

doi:10.1109/eiconrus49466.2020.9038958

Cited by 2 publications

(5 citation statements)

References 5 publications

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“…Gautam et al 19 proposed to fabricate the composite nanofibrous tissue engineering-scaffold consisting of polycaprolactone and gelatin by electrospinning method showing the scaffold made from the combination of natural polymer (gelatin). Gareev et al 20 developed for the production of gelatin-based polymer composites with introduced particles of conductive polymers.…”

Section: Effect Of Gelatin Treatment On Tow Deformation In Resin-impr...mentioning

confidence: 99%

Effect of gelatin treatment on tow deformation in resin-impregnated glass fiber

Lee

et al. 2022

Sci Rep

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The potential use of gelatin materials in the liquid composite molding manufacturing (LCM) process was investigated, with specific focus on the reinforcement deformation phenomenon. The adoptability of gelatin as a binder in a composite material with glass fiber for application in the LCM process was evaluated by analyzing the permeability and microscopic structure of the gelatin-coated glass fiber. To assess the tow deformation, the permeability of the non-crimped unidirectional glass fiber mat was evaluated at different flow rates that could be applied in the LCM process. Hysteresis of the permeability was observed as the flow rate increased and decreased, indicative of tow deformation. The permeability of the gelatin-treated glass fiber mat exhibited a relatively smaller variation than that of the untreated glass fiber at the same flow rate. Tow deformation in the untreated and gelatin-treated non-crimped glass fiber mats at different flow rates was evaluated by microscopic analysis and quantified using the tow thickness index. Relatively smaller variations in the permeability and minimal changes in the tow thickness of the gelatin-treated glass fiber mat were observed via microscopic analysis, indicating that gelatin effectively maintained the binding structure of the glass fiber mat.

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Section: Effect Of Gelatin Treatment On Tow Deformation In Resin-impr...mentioning

confidence: 99%

Effect of gelatin treatment on tow deformation in resin-impregnated glass fiber

Lee

et al. 2022

Sci Rep

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“…The frequency dependencies of complex dielectric permittivity were measured in accordance with ASTM D150, using an Agilent E4980A high-precision LCR meter (Agilent Technologies, Inc., Santa Clara, CA, USA) and a measuring cell developed at Saint Petersburg Electrotechnical University "LETI" [29].…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…To measure the EMR absorption coefficient, we used a method based on a coplanar waveguide (CPW) with an impedance of 50 Ω, assigned to the frequency range of 50-2000 MHz, and a vector network analyzer ZVB-20 (Rohde&Schwarz, Munich, Germany). The design of the CPW was developed at Saint Petersburg Electrotechnical University "LETI" [29]. When measuring, the test sample was placed on the surface of the CPW.…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…A 4200-SCS semiconductor characterization system (Keithley, Solon, OH, USA) and an M150 probe station (Cascade Microtech, Beaverton, OR, USA) were used to measure the surface electrical resistivity of samples using the four-probe method. In order to calculate the electrical resistivity of the samples, their thicknesses were measured using a micrometer with an accuracy of 5 µm [29]. Each sample was measured five times.…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…However, a direct comparison of the values of the absorption coefficients is not entirely correct due to the different frequency ranges of measurements (0.05-2 GHz and 9-18 GHz) and different measurement techniques (air-coaxial line and CPW). Nevertheless, the authors believe that the gelatin-PANI composite films will demonstrate similar or higher values of EMR absorption coefficient at frequencies over 8 GHz because, unlike polystyrene, gelatin binders possess intrinsic dielectric losses [29].…”

Section: Emr Absorption Measurementmentioning

confidence: 99%

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Synthesis and Characterization of Polyaniline-Based Composites for Electromagnetic Compatibility of Electronic Devices

et al. 2020

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Polyaniline-based composites designed to ensure the electromagnetic compatibility of electronic devices were obtained. The surface morphologies of the obtained films were studied using optical and electron microscopy. The electrical resistivity of polyaniline (PANI) films were measured at various thicknesses. For films of various compositions and various thicknesses, the frequency dependencies of the complex dielectric permittivity, in the range of 100–2000 kHz, as well as the electromagnetic radiation (EMR) absorption coefficient in the frequency range 0.05–2 GHz were obtained. It was found that flexible gelatin-PANI composite films with a thickness of 200–400 μm, a bending radius of about 5 cm, and a real part of complex permittivity of not more than 10 provide an EMR absorption coefficient of up to 5 dB without introducing additional EMR absorbing or reflecting fillers. The resulting gelatin-PANI composite films do not possess a through electrical conductivity and can be applied directly to the surface of protected printed circuit boards.

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Research and Development of "Gelatin–Conductive Polymer" Composites for Electromagnetic Compatibility

Cited by 2 publications

References 5 publications

Effect of gelatin treatment on tow deformation in resin-impregnated glass fiber

Effect of gelatin treatment on tow deformation in resin-impregnated glass fiber

Synthesis and Characterization of Polyaniline-Based Composites for Electromagnetic Compatibility of Electronic Devices

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