Study of the influence of rubber on stremgth properties of carbon plastic
Рубрика:
| Meyirbekov, MN, Ismailov, MB, Manko, TA, 1Kozis, KV 1Yangel Yuzhnoye State Design Office, Dnipro, Ukraine |
| Space Sci. & Technol. 2022, 28 ;(5):67-74 |
| https://doi.org/10.15407/knit2022.05.067 |
| Язык публикации: Ukrainian |
Аннотация: The use of elastomers allows us to purposefully, and less material consumption than when using other methods of formation. The effect of polyurethane and silicone rubbers as modifiers of increasing the impact strength of epoxy resin Etal-Inject-T hot curing has been studied. To determine the compressive strength of carbon fiber, the samples were tested on a universal test machine MUP-200. The impact strength of carbon fiber was determined by the Charpy method. It is established that polyurethane and silicone rubbers have the same qualitative effect on the properties of epoxy resins. When modifying carbon fiber with polyurethane rubber with an increase in the content of up to 10%, the impact strength of carbon fiber increases to a maximum of 215 kJ / m2, with a significant increase in compressive strength up to 495 MPa. Optimal results were obtained with polyurethane rubber at 10% content of the substance. The main role of rubber in increasing the strength and elasticity of the material is that when the impact in a small amount of carbon fiber concentrates a lot of mechanical energy, the rubbers are stress concentrators, so the crack arises in the matrix adjacent to the elastomer (rubber). The increase in the toughness of the material can be associated with the formation of a dispersed phase of rubber, which loosens the structure of the cured epoxy resin.
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| Ключевые слова: Carbon Fiber Reinforced Plastic, compression, epoxy resin, impact viscosity, liquid oligomers, modifiers, strength |
References:
1. Amirov R.R, Andrianova K.A, Amirova L.M, Gerasimov A.V. Mechanical and thermophysical properties of epoxy polymers modified with urethane rubbers. Butler's messages. 2012, 31(8), p. 61-65.
2. Dubkova V.I, Maevskaya O.I, Zhandarov S.F. Modified polymer matrix of carbon fiber to increase the interfacial adhesive strength, strain strength and resistance to thermal oxidation. Polymeric materials and technologies. 2017, 4, P. 19-36 [in Russian].
https://doi.org/10.32864/polymmattech-2017-3-4-19-36
3. Kostyagina V.A, Solomonov L.I, Kravchenko T.P, Gorbunova I.Yu. Composite materials based on thermoplastics. Advances in chemistry and chemical technology. Volume XXVI. 2012, 4, p. 11-14 [in Russian].
4. Marakhovsky K.M, Osipchik V.S, Vodovozov G.A, Papina S.N Modification of epoxy binder with improved characteristics for the production of composite materials. Successes in chemistry and chemical technology. Volume XXX, 2016, N 10, P. 56-58.
5. Meirbekov MN, Ismailov MB. Influence of rubber on mechanical properties of epoxy resin and carbon fiber (Review). Complex Use of Mineral Raw Materials. 2020, 1(312), Almaty, pp. 11-18, ISSN 2224-5243.
https://doi.org/10.31643/2020/6445.02
6. Starokamodsky D. The long life of epoxy. Science and life. 2018, p. 66-72 [in Russian].
7. Chebotaraev EA, Vishnyakov LR Polymer composite materials: Structure formation and its influence on properties (Review). Bulletin of engineering academy of Ukraine. 2012, 2, p. 157-163 [in Russian].
8. Yakovlev EA, Yakovlev NA, Ilinykh IA, Burmistrov IN, Gorshkov NV Investigation of the influence of functionalized multiwall carbon nanotubes on the electrical conductivity and mechanical characteristics of epoxy composites. Bulletin of Tomsk State University. Chemistry. 2016, Vol. 5, N. 3, p. 15-23.
https://doi.org/10.17223/24135542/5/2
9.Ahmad Fakhar, Mohammad Aabeadiaan, Maryam Keivani and Ameneh Langari. Use of Reactive Oligomer to Improve Fracture Resistance of Epoxy Used in Medical Applications and GRP Pipelines. World Applied Sciences Journal. 2012, p. 259-263.