Abstract
Binders based on solutions of polyvinyl butyral (molecular mass 43 000 and 57 000 g mol–1) in a mixture of two monomers, di(1-methacryloxy-3-chloro-2-propyl) methylphosphonate and 2-hydroxyethyl methacrylate, were developed for difficultly combustible glass-reinforced plastics (oxygen index up to 45.5 vol %). Under the conditions of redox initiation, the gel effect is reached in 82 to 418 min. The glass-reinforced plastic prepared by vacuum infusion from T11 glass fabric and the binder developed (at the binder content no higher than 35.2 wt %) exhibits the elastic modulus in bending across the warp of up to 17.9 GPa and the breaking stress in static bending across the warp of up to 178.4 MPa.
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ACKNOWLEDGMENTS
The study was performed using the equipment of the Physical Methods of Investigation Center for Shared Use at the Volgograd State Technical University.
Funding
The study was performed within the framework of the government assignment for performing research at the Interregional Research and Educational Center of the South of Russia and was financially supported by the Ministry of Science and Higher Education of the Russian Federation (agreement no. FSUS-2021-0013).
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S.V. Borisov: rheological and kinetic studies; D.R. Kuvshinova: preparation of samples of cured binders and determination of their softening point; D.A. Kudryavtseva: study of the physicomechanical properties of the cured binders; Yu.N. Kamenev: preparation of sheet samples of glass-reinforced plastics by vacuum infusion, their subsequent mechanical treatment, and determination of the weight fraction of the binder; A.A. Solomatina: sample preparation for analyses and tests, extraction in a Soxhlet apparatus, and density determination; V.G. Kochetkov: studies of the thermal oxidative degradation and combustibility of the cured binders and glass-reinforced plastics based on them; M.A. Vaniev: calculations of rheokinetic characteristics; A.B. Kochnov: synthesis of di(1-methacryloxy-3-chloro-2-propyl) methylphosphonate; I.A. Novakov: development of binder formulations.
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Translated from Zhurnal Prikladnoi Khimii, No. 1, pp. 43–52, August, 2023 https://doi.org/10.31857/S0044461823010061
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Borisov, S.V., Kuvshinova, D.R., Kudryavtseva, D.A. et al. Binders Based on Solution of Polyvinyl Butyral in Di(1-methacryloxy-3-chloro-2-propyl) Methylphosphonate–2-Hydroxyethyl Methacrylate Mixture for Difficultly Combustible Glass-Reinforced Plastics. Russ J Appl Chem 96, 35–43 (2023). https://doi.org/10.1134/S1070427223010068
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DOI: https://doi.org/10.1134/S1070427223010068