THE STUDY OF THERMAL CHARACTERISTICS OF GLASS-, CARBON FIBER MATERIALS AND MATERIALS PRODUCED BASING ON THE ADDITIVE TECHNOLOGIES USING 3DP AND FDM TECHNOLOGIES


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Abstract

Composites are widely used in the air and land transport systems, although they have a significant disadvantage that is a considerable anisotropy of physical and mechanical characteristics and low strength especially under bending, in complex deformed state and under the dynamic alternating loads. The application of the electrophysical and, more specifically, microwave modification of the structure of the products made of such materials allows improving significantly the strength properties. Due to the thermal effects accompanying the influence of the microwave electromagnetic field, to optimize the technological modes of modification, it is important to study thermal characteristics of complex materials with heterogeneous structure for predicting possible effects of microwave exposure. The authors carried out the study of heat kinetics, coefficients of thermal conductivity and thermal diffusivity of the samples made of glass- and carbon fiber materials, carbon fiber reinforced material with a quasi-isotropic structure, additive materials – ABS plastic and Zp130 powder-based composite material impregnated with the Z-BondTM90 cyanoacrylate. The heating process of samples of carbon fiber-based ABS plastics with the additional topological composite structure has been studied. The significant (up to eight times) difference in thermal parameters of the additive ABS plastics and composite materials has been determined. At the same time, molded glass- and carbon fiber materials have thermal conductivity 4-6 times lower than the Zp130 powder-based composites. The cured composites with the quasi-isotropic structure have the values of thermal conductivity and thermal diffusivity coefficients an order of magnitude and higher, what is apparently caused by the much higher structure density. All these facts confirm the necessity to carry out the selection of the components according to both the strength improvement criterion and the thermal parameters correlation when developing the structures of reinforced products made of additive materials with the topological structure and the technologies of their modification.

About the authors

I. V. Zlobina

Yuri Gagarin State Technical University of Saratov

Author for correspondence.
Email: irinka_7_@mail.ru

Zlobina Irina Vladimirovna, PhD (Engineering), assistant professor of Chair “Engineering Mechanics and Machinery”

410054, Saratov, Politechnicheskaya Street, 77

Россия

N. V. Bekrenev

Yuri Gagarin State Technical University of Saratov

Email: irinka_7_@mail.ru

Bekrenev Nikolay Valerievich, Doctor of Sciences (Engineering), Professor, Head of Chair “Engineering Mechanics and Machinery”

410054, Saratov, Politechnicheskaya Street, 77

Россия

S. P. Pavlov

Yuri Gagarin State Technical University of Saratov

Email: irinka_7_@mail.ru

Pavlov Sergey Petrovich, Doctor of Sciences (Physics and Mathematics), Professor, professor of Chair “Mathematics and modeling”

410054, Saratov, Politechnicheskaya Street, 77

Россия

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