PSI - Issue 20

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000–000

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Procedia Structural Integrity 20 (2019) 185–189

1st International Conference on Integrity and Lifetime in Extreme Environment (ILEE-2019) 1st International Conference on Integrity and Lifetime in Extreme Environment (ILEE-2019) Influence of ultrafine silicon carbide powders on the properties of epoxy resin A.A. Kychkin a, *, E.S. Anan'eva b , K I Та nk о va b , A.K. Kychkin c , A.G. Т uisov a a Federal Research Centre “The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences”, 2, Petrovskogo str.,Yakutsk 677000, Russia b Department of science, Polzunov altai state university, Lenin prospect 46, Barnaul 656038, Russia c V.P. Larionov Institute of Physical and Technical Problems of the North, Siberian Branch, Russian Academy of Sciences, 1 Oktyabrskaya str., Yakutsk 677980, Russia Influence of ultrafine silicon carbide powders on the properties of epoxy resin A.A. Kychkin a, *, E.S. Anan'eva b , K I Та nk о va b , A.K. Kychkin c , A.G. Т uisov a a Federal Research Centre “The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences”, 2, Petrovskogo str.,Yakutsk 677000, Russia b Department of scien e, Polzun v altai state university, Lenin p ospect 46, Barnaul 656038, Russia c V.P. Larionov Institute of Physical and Technical Problems of the North, Siberian Branch, Russian Academy of Sciences, 1 Oktyabrskaya str., Yakutsk 677980, Russia The article reflects the results of studies on influence of ultrafine silicon carbide powders on the prop rties of epoxy resi . It gives theoretical justification of possible effects of introduction of dispersed particles to the amount of resin. The description of the research bjects and test methods is given. The resin based n the epoxy olig mer ED-20 and isomethyl-tetrahydrohthalic anhydrid (iso-MTGFA) was chosen as a hardening agent. The modifying additive f silicon carbide was used in a p wder form, where the SiC amount was no l ss than 94% with the average particle size from 80 to 110 nm and the maximum agglomerate size to 15 km. Possibility and effectiveness of use of ultrasonic dispersion of silicon carbid in the amount of resin was analysed. The time of ultrasonic impact 240 minutes was found to provide the sediment dispersing syste with a high degree f dispersibility of silicon carbide particles. Studies of compression str ngth and modulus of elastic in compression and bending of samples with the content SiC fro 0 to 5 mass. % showed some changes of the filled epoxy resin. It was experime tally determined that modification by eans of silicon carbide with its amount 0,75 mass.% is of practical interest. Enhancing of compression str ngth of 5 % and modulus of elastic in compression of 16% is observed. Studies of morphological structure of a modified polymer and its behavior under dynamic loads is useful. Abstract Abstract The article reflects the results of studies on influence of ultrafine silicon carbide powders on the properties of epoxy resin. It gives theoretical justification of possible effects of introduction of dispersed particles to the amount of resin. The description of the research objects and test methods is given. The resin based on the epoxy oligomer ED-20 and isomethyl-tetrahydrohthalic anhydride (iso-MTGFA) was chosen as a hardening agent. The modifying additive of silicon carbide was used in a powder form, where the SiC amount was no less than 94% with the average particle size from 80 to 110 nm and the maximum agglomerate size to 15 mkm. Possibility and effectiveness of use of ultrasonic dispersion of silicon carbide in the amount of resin was analysed. The time of ultrasonic impact 240 minutes was found to provide the sediment dispersing system with a high degree of dispersibility of silicon carbide particles. Studies of compression strength and modulus of elastic in compression and bending of samples with the content SiC from 0 to 5 mass. % showed some changes of the filled epoxy resin. It was experimentally determined that modification by means of silicon carbide with its amount 0,75 mass.% is of practical interest. Enhancing of compression strength of 5 % and modulus of elastic in compression of 16% is observed. Studies of morphological structure of a modified polymer and its behavior under dynamic loads is useful.

© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers © 2019 The Author(s). Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers © 2019 The Author(s). Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers

Keywords: silicon carbide; ultrasonic dispersion; epoxy anhydride; strength; modulus of elastic. Keywords: silicon carbide; ultrasonic dispersion; epoxy anhydride; strength; modulus of elastic.

* Corresponding author. Tel.: 8-914-303-4490 E-mail address: icen.kychkin@mail.ru * Correspon ing author. Tel.: 8-914-303-4490 E-mail address: icen.kychkin@mail.ru

2452-3216© 2019 The Author(s). Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers 2452 3216© 2019 The Author(s). Publis ed by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers

2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers 10.1016/j.prostr.2019.12.137