Abstract
The compatibility of polypropylene with chemical hydrocarbon structures formed on the surface of basalt fibers is predicted using a nonstandard method of their processing. CCl4 steaming is performed in a flow reactor to replace oxygen atoms with chlorine atoms, after which the chlorinated surface is treated in a stream of CH4 to replace chlorine with hydrocarbon groups. The chemical structure of hydrocarbon groups most compatible with polypropylene is determined by calculations using the Cascade computer program. IR spectroscopy and microanalysis confirm the presence of groups and on the surface of basalt fibers, which are chemically bonded to silicon atoms. The resulting composites based on secondary polypropylene reinforced with processed basalt fibers show a significant increase in the relaxing stress and modulus at all observation times.
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Funding
This work was carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation (project “Theoretical and experimental design of new composite materials to ensure safety in the operation of buildings and structures in conditions of man-made and biogenic threats” no. FSWG-2020-0007 and the theme of the State Task of INEOS RAS no. 0085-2019-0004).
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Galitseiskii, K.B., Timantsev, Y.A., Dokuchaev, R.V. et al. Compatibility of Components and Relaxation Properties of Composites Based on Secondary Polypropylene and Modified Basalt Fibers. Polym. Sci. Ser. A 62, 521–533 (2020). https://doi.org/10.1134/S0965545X20050053
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DOI: https://doi.org/10.1134/S0965545X20050053