Study of Microcapillary Impregnation of Carbon Fibres by Epoxy Binders

Kobets, L. P.; Borodulin, A. S.; Malysheva, G. V.

doi:10.1007/s10692-017-9788-8

Cited by 40 publications

(11 citation statements)

References 1 publication

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“…Based on the analysis of the curing mechanism and manufacturability of using various polymeric materials [10,11] as viscoelastic components of PCM (modifiers), the following were selected: technical wax, anaerobic and organosilicon polymeric materials. These viscoelastic components form a hybrid PCM matrix with the main binder material.…”

Section: Materials and Methods Of Researchmentioning

confidence: 99%

Development of Construction and Repair Materials Used in Transport and Technological Machines Operating in the Arctic

et al. 2021

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Increasing the pace of development of the Arctic zone, among other tasks, requires the attraction of significant production resources to improve the transport network, in particular, road construction equipment and technological equipment. Extreme climatic conditions, including low air temperatures and strong winds, are features of the Arctic zone. In this regard, there is a need to form a methodological basis for the development of construction and repair materials for use in the Arctic. To solve this problem, based on the results of mechanical tests at temperatures of +20°C, -30°C and -50°C, the possibility of using carbon fiber plastics with various types of hybrid matrices for the manufacture of mechanical engineering products operating in extreme conditions of the Arctic and the creation of reinforcing linings during their repair. The indicators of manufacturability during repairs under the conditions of constant exposure to negative temperatures using polymeric materials are considered.

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Section: Materials and Methods Of Researchmentioning

confidence: 99%

Development of Construction and Repair Materials Used in Transport and Technological Machines Operating in the Arctic

et al. 2021

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“…However, the prepreg technology has its disadvantages, such as high cost and labor intensity, and therefore prepregs are gradually replaced by the vacuum infusion technology which allows to combine the processes of impregnating the reinforcing material and molding products in a single technological cycle. Initially, only thermosetting materials, most often epoxy, were used as binders in infusion technologies, but in recent years many new types of binders have been developed that are characterized by high mechanical and thermal-physical properties [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Various methods of non-destructive testing are used to assess the quality of components manufactured by using vacuum infusion technology, including structural analysis methods [8][9][10][11][12]. The detection of internal defects in composite materials by non-destructive methods is an important requirement, both for quality control at the production stage, and for monitoring their durability during operationand maintenance.…”

Section: Introductionmentioning

confidence: 99%

Method of Predicting the Polymer Composites’ Properties Using Neural Network Modeling

et al. 2021

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A neural network modelling technique and its training to diagnose polymer composite materials based on tomography data is introduced. As an object of study, carbon fiber made by vacuum infusion technology using an epoxy binder is considered. X-ray microtomography was used to analyze its structure and the provided images were used as a database for creating a neural network. A neural network modelling technique and its training was developed, including an algorithm for converting tomograph images into data on the structure of the phase composition and the physical and mechanical properties of the object under study.

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“…Polymer composites based on fibred carbon materials and epoxy resins are widelyused in the production of rocket-space engineering, the aircraft industry, mechanical engineering, in the production of road and construction machines, etc. [1][2][3][4].They are used in the manufacture of structural elements, which require a combination of high strength, rigidity, durability and minimum weight [5][6][7][8][9].Currently, in the manufacture of parts from carbon fiber reinforced plastics, prepreg technologies and methods of direct molding are used [10][11][12].The principle of direct molding methods is that the process of impregnating the reinforcing compound and the molding processof the partare combined into a single technological operation.This leads not only to a reduction in the duration of part manufacture, but also to a reduction in energy and labor costs and, as a consequence, reduce the cost of technology.Direct molding methods include: vacuum infusion, resin transfer molding (RTM), resin film infusion, etc.…”

Section: Introductionmentioning

confidence: 99%

Calculation of the Thermal Stress when Subjected to an Electric Current on Glass and Carbon Fibers with Copper Coatings

2021

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Two types of fibers (carbon and glass) are considered, as an object of research, on the surface of which a copper coating is applied with a thickness of 100 nm using magnetron sputtering technology. A finite element model of a coated fiber was built and simulated in the COMSOL Multiphysics software. As a result of the calculations, the values of the temperatures, arising during the passage of electric current on the surface of the fibers and copper coating, have been determined. This calculation makes it possible to simulate the thermal heating modes occurring in parts of fiberglass and carbon fiber reinforced plastics in the process of curing. As a result of calculations, it was found that copper coating significantly improves electrical conductivity, which is especially important for glass fibers, since its conductivity is considerably lower than carbon. The use of copper coating in the production of parts from fiberglass allows to regulate their thermophysical properties within a wide range.

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Study of Microcapillary Impregnation of Carbon Fibres by Epoxy Binders

Cited by 40 publications

References 1 publication

Development of Construction and Repair Materials Used in Transport and Technological Machines Operating in the Arctic

Development of Construction and Repair Materials Used in Transport and Technological Machines Operating in the Arctic

Method of Predicting the Polymer Composites’ Properties Using Neural Network Modeling

Calculation of the Thermal Stress when Subjected to an Electric Current on Glass and Carbon Fibers with Copper Coatings

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