RESEARCH OF INFLUENCE OF ALKALINE HANDLING ON STRUCTURE AND ELEMENTARIZOVANNY PROPERTIES LINEN FIBRE
Abstract
The possibility of modification of linen fibers according to the essentially new technological scheme which includes purposeful destruction of connective tissues by the action of cyclic de-forming loads (elementarization) with the subsequent chemical processing is proved. The analysis of properties of the obtained elementary fibers of natural origin has shown that geometrical indicators of flax elementary fibers are close to the ones of cotton and wool fibers, and their du-rability is considerably higher, that gives the prospects to create innovative products for technical, textile and medical purposes on their basis. The influence of chemical processings, modeling the processes of modification and upgrading of flax materials, on the composition of basic admixtures and properties of elementarized fibers is investigated. It is shown that the high extent of purification of elementarized fibers raises the possibility of cellulose destruction. The selection of chemical reagents and concentration and time parameters of the process, which provide the optimum extent of purification of elementarized fibers without the destruction of its cellulose component, is carried out. It is determined that chemical processings of elementarized flax fibers in comparison with the cottonized ones have to be carried out in softer conditions: the concen-tration of alkali – to 2 g/l, the processing duration – up to 60 min. As the alkaline reagent the bases weaker than sodium hydroxide can be applied, in particular, sodium carbonate. The insig-nificant destruction of cellulose noted during the subsequent influence of an oxidizer is confirmed by small contents of carboxyl and aldehyde groups in it and also by the durability indexes of new type of fibers: the durability of fibers before and after the chemical processings has no significant differences and is within the limits 40,4–42,0 sn/tex.
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References
Spravochnik po khlopkopriadeniiu [Cotton Handicraft Handbook], ed. B.P. Shirokov i dr. Moscow, 1985, 473 p. (in Russ.).
Priadenie l'na i khimicheskikh volokon: Spravochnik [Spinning of flax and chemical fibers: Handbook], ed. L.B. Kariakin, L.N. Ginzburg. Moscow, 1991, 544 p. (in Russ.).
Kukin G.N., Solov'ev A.N., Kobliakov A.N. Tekstil'noe materialovedenie (volokna i niti): Uchebnik dlia vuzov. [Textile materials science (fibers and threads): Textbook for high schools]. Mosocw, 1989, 352 p. (in Russ.).
Patent 2497982 (RU). 2013. (in Russ.).
Larin I.Iu., Voronina E.R., Stokozenko V.G., Moryganov A.P. Sbornik materialov XIX Mezhdunarodnogo nauchno-prakticheskogo foruma «Fizika voloknistykh materialov: struktura, svoistva, naukoemkie tekhnologii i materialy («SMARTEX-2016»)». [Collection of materials of the XIX International Scientific and Practical Forum "Fibrous ma-terials physics: structure, properties, science-intensive technologies and materials (SMARTEX-2016)"]. Ivanovo, 2016, pp. 206–210. (in Russ.).
Gubina S.M., Stokozenko V.G. Tekstil'naia promyshlennost'. Nauchnyi al'manakh, 2006, no. 1, pp. 18–20. (in Russ.).
Otdelka khlopchatobumazhnykh tkanei: Spravochnik [Finishing of cotton fabrics: Handbook], ed. B.N. Mel'nikov, Ivanovo, 2003. 484 p. (in Russ.).
Obolenskaia A.V., El'nitskaia Z.P., Leonovich A.A. Laboratornye raboty po khimii drevesiny i tselliulozy: Uchebnoe posobie dlia vuzov. [Laboratory work on chemistry of wood and cellulose: Textbook for high schools]. Moscow, 1991, 320 p. (in Russ.).
Khabarov Iu.B., Pes'iakova L.A. Analiticheskaia khimiia lignina. [Analytical chemistry of lignin]. Arkhangel'sk, 2008, 172 p. (in Russ.).
Sadov F.I., Sokolova N.M., Vil'dt E.O. Laboratornyi praktikum po kursu «Khimicheskaia tekhnologiia vo-loknistykh materialov». [Laboratory workshop on the course "Chemical technology of fibrous materials"]. Moscow, 1963, 428 p. (in Russ.).
Ivanov V.I., Kaverzneva E.D., Kuznetsova Z.I. Izvestiia AN SSSR, 1953, no. 2, pp. 374–384. (in Russ.).
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