Analiza Wpływu Grafenu Na Właściwości Kompozytów Węglowo-Epoksydowych

Sałacińska, A.

doi:10.5604/05096669.1222765

Cited by 3 publications

(2 citation statements)

References 50 publications

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“…This behaviour probably resulted from the two competitive phenomena-dispersive matrix strengthening by GN and deterioration of overall composite bonding due to increased viscosity of epoxy resin. Similar problems were reported by a number of other researchers [33][34][35]. The lowest flexural strength of the composite with 0.5 wt% GN can be explained by alterations in the preparation process-the nanoadditives were not sonicated for the composites containing more than 0.5 wt% of GN.…”

Section: Graphene Nanoplateletssupporting

confidence: 54%

“…Besides the excellent conductivity, the very high specific surface area of GN (about 500 m 2 g -1 ) should be taken into consideration in the case of investigated hybrid composites. Such a high surface area requires a significant amount of low-viscosity binder with a suitable surface energy to wet the GN successfully [33]. The conducted study showed that the 30 wt% of epoxy resin was insufficient to adequately wet and bind sCF/GN fillers.…”

Section: Graphene Nanoplateletsmentioning

confidence: 97%

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Conductive hybrid polymer composites based on recycled carbon fibres and carbon nanofillers

Zambrzycki

2018

J Mater Sci

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The aim of this study was to investigate potential applications of milled secondary carbon fibres as a primary filler in conductive polymer composites. The examined composites were based on epoxy resin, milled secondary carbon fibres and selected carbon nanoadditive used as a secondary conductive filler.Three kinds of nanopowders were tested: multiwalled carbon nanotubes, graphene nanoplatelets and graphitized carbon black. In the first stage of the experiment, composites with different percentages of carbon fibres were examined in order to determine the electrical conductivity and percolation threshold. Subsequently, the most conductive composition (70% of carbon fibres, r = 9.05 S cm -1 ) was modified by adding nanofillers. The addition of carbon nanotubes caused more than twofold increase in in-plane conductivity to 20.18 S cm -1 . The composites with graphene nanoplatelets showed deterioration of properties due to strongly increased viscosity of a binder with graphene. Small loadings of graphitized carbon black had a minor positive impact on the electrical conductivity and mechanical properties of composites.

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Section: Graphene Nanoplateletssupporting

confidence: 54%

Section: Graphene Nanoplateletsmentioning

confidence: 97%

Conductive hybrid polymer composites based on recycled carbon fibres and carbon nanofillers

Zambrzycki

2018

J Mater Sci

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Manufacturing and Testing of Carbon Composite Samples Intended for Aviation

Szymański

Zięba

2017

Transactions on Aerospace Research

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The paper presents the manufacturing technology and quality control of samples made of composite materials intended, inter alia, for aircraft elements. The samples are made from carbon fiber reinforced prepreg in a polymer matrix which is commonly used in the aerospace industry. The authors described the dimensional requirements for samples made of composite materials for strength testing, and the main stages of production which have a direct impact on the quality of composite samples. Also presented is the technological process of producing flat carbon composite panels for composite samples, cutting the produced panels with a CNC plotter, cutting the samples on a conventional milling machine, and surface treatment of the samples on a surface grinder. The machining parameters that were experientially found to be optimal for the milling and grinding of carbon samples are specified as well. Finally, the method of quality control of the ready composite samples is described and solutions are presented to improve the production of high-quality samples.

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Implementation of Automatic Sample and Composite Element Cutting Technologies

Jaśkiewicz

2018

Transactions on Aerospace Research

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The article presents the methodology of introducing automatic carbon fiber panel cutting technologies at the Composite Testing Laboratory of the Institute of Aviation. It describes the process of implementing the new cutting technology which boosts the efficiency of preparing composite samples for strength testing, with the requirements applicable to edge smoothness and dimension tolerances taken into consideration. It also reviews the literature concerned with three most popular composite material cutting methods: laser cutting, abrasive water jet cutting and machining, presenting the strong and the weak points of each one of them. After selecting the machining technology relying on a disc, cutting tests have been performed. Cutting discs coated with diamond particles, and carbon fiber panels were used during the tests. The tests were performed with the use of the INFOTEC CNC machine, with an adapter enabling the installation of cutting discs with the maximum diameter of 150 mm.

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Analiza Wpływu Grafenu Na Właściwości Kompozytów Węglowo-Epoksydowych

Cited by 3 publications

References 50 publications

Conductive hybrid polymer composites based on recycled carbon fibres and carbon nanofillers

Conductive hybrid polymer composites based on recycled carbon fibres and carbon nanofillers

Manufacturing and Testing of Carbon Composite Samples Intended for Aviation

Implementation of Automatic Sample and Composite Element Cutting Technologies

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