Results 1 to 10 of about 465,441 (259)
Engineering Proceedings, 2023 The economic viability of guayule as an industrial crop for natural rubber production depends largely on the potential valorization of these co-products.
Hind Houria Bougherra +6 more
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Thermal and Electrical Characterization of Polyester Resins Suitable for Electric Motor Insulation
Polymers, 2023 This paper undertakes the thermal and electrical characterization of three commercial unsaturated polyester imide resins (UPIR) to identify which among them could better perform the insulation function of electric motors (high-power induction motors fed by pulse-wide modulation (PWM) inverters). The process foreseen for the motor insulation using these
Calabrese E. +7 more
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Os conceitos de eletricidade vítrea e eletricidade resinosa segundo Du Fay
Revista Brasileira de Ensino de FísicaNa década de trinta do século XVIII, Charles François De Cisternay Du Fay enunciou dois princípios gerais que, segundo ele, regiam os fenômenos da eletricidade.
Sérgio Luiz Bragatto Boss +1 more
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Electrical properties of resin monomers used in restorative dentistry [PDF]
Dental Materials, 2012 The application of an electric field has been shown to positively influence the impregnation of the resin monomers currently used in dentin bonding systems during hybrid layer formation. This study presents an experimental characterization of the electrical properties of these monomers with the aim of both correlating them to their chemical structures ...
BRESCHI, MARCO +9 more
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Influence of nanofillers on electrical characteristics of epoxy resins insulation [PDF]
2010 10th IEEE International Conference on Solid Dielectrics, 2010 Epoxy resin is widely used in high voltage apparatus as insulation. Fillers are often added to epoxy resin to enhance its mechanical, thermal and chemical properties. The addition of fillers can deteriorate electrical performance. With the new development in nanotechnology, it has been widely anticipated that the combination of nanoparticles with ...
Wang, Q, Chen, G, Alghamdi, A S
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ELECTRICA, 2022 Polymers are widely used as insulation materials in the electrical industry because their existing electrical and mechanical properties can be altered by adding different types of additives. Successful prediction of the service life of the insulators used in the electrical industry is important for the reliability of the system.
Nisanci, Salih +4 more
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Effect of Resin Content on the Electrical Properties of ZnO-Resin Photosensitive Layers
The Journal of the Society of Chemical Industry, Japan, 1971 酸化亜鉛感光層の樹脂混合率を変化させ, その電気的特性 (暗電流, 表面電位) を測定したところ, 興味深い現象を見い出し, その原因について解明を行なった。感光層の表面電位 Vs および電流 I は, 樹脂混合率に対して, 単調なる曲線を描かず奇異なる曲線を示した。表面電位では 3% に極大, 20% 付近に極小が, 電流では逆に 3% に極小, 20% 付近に極大が存在し, 両者の関係は全く反対の曲線を示した。このことは従来の Vs と I との関係から考えると矛盾するような現象である。そこで次の考察を加えて, これらの現象を合理的に説明した。表面電位に関しては,樹脂の双極子が酸化亜鉛の仕事関数を小さくするように吸着することから説明され,別の実験によってこの仮定が確証された。電流に関しては ...
Atsumi KONDO +3 more
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Influence of Electric Field on Electrical Tree Growth in Epoxy Resin with Fillers
, 2023 Abstract We investigate the influence of electric field in epoxy resin with fillers on electrical tree growth from a void. Not only observation of electrical trees but also measurements of temporal variations in partial discharge (PD) occurrence frequency and PD magnitude were carried out.
Swe Zin Linn Htet +4 more
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Electrical treeing and reverse tree growth in an epoxy resin
IEEE Transactions on Dielectrics and Electrical Insulation, 2017 An electrical treeing process is presented which consists of two types of electrical tree structures that coexist in the same epoxy resin: these have been termed as ‘filamentary trees’ and ‘reverse trees’. In samples with needle-plane electrode geometries, a filamentary tree that consists of fine tree channels propagates from the needle electrode to ...
Zheng, Hualong +3 more
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On electrochemistry of metal-organic framework Zn2(EDTA)(H2O). [PDF]
RSC Adv, 2023 Starodubtseva AA +5 more
europepmc +1 more source