Shear Flow of Guncotton Pulp

• Autorzy: Banishevsky Victor , Zakusylo Roman , Zakusylo Daryna

Identyfikatory

DOI

10.22211/cejem/134904

• Języki publikacji: EN

Abstrakty

EN

This article considers aspects of the flow, rheology, and viscometry of guncotton pulp. It is substantiated that during production guncotton pulp is subjected to shear deformation, taking into account sliding over smooth surfaces, in the input zones of the dies, in the barrel, and on the crimped finned tube of the screw extruder. At the same time, the presence of shear stress in guncotton pulp has not been established. A rotational viscometer with a torque meter, which was developed during this research, enabled the presence of shear stress in guncotton pulp to be demonstrated. The values of the flow stress depend on the solvent content in the guncotton pulp; as this is decreased, the τ0 value increases. When the flow curve for the section from τ0 to τRmax was constructed, the flow curves of the guncotton pulp were described by the Herschel-Bulkley equation. The flow curves of guncotton pulp obtained on corrugated capillaries of different sizes are non-invariant and depend on the magnitude of the deformation of the guncotton pulp in the capillaries. Guncotton pulp flows in a narrow range of pressures and deformations.

Słowa kluczowe

EN

guncotton pulp; viscometry; shear flow; shear stress; torque

• Wydawca: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2021
• Tom: Vol. 18, no. 1
• Strony: 124--142
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Banishevsky Victor

• Shostka Institute of Sumy State University, Shostka, Ukraine

autor

Zakusylo Roman

• Shostka Institute of Sumy State University, Shostka, Ukraine

autor

Zakusylo Daryna

• Shostka Institute of Sumy State University, Shostka, Ukraine

Bibliografia

• [1] Marchenko, G.M.; Zabelin, L.V. Production of Cellulose Nitrate. Physicochemical Fundamentals of Cellulose Nitrate Processing. TsNIINTI I TEI, Мoscow, 1988, pp. 154-155.
• [2] Veschev, A.A. About Wall Sliding of Asbestos during Extrusion. Proc. Yaroslavl Polytechnic Institute, Yaroslavl, 1972, 34: 124-130.
• [3] Pavlov, V.P.; Vinogradov, G.V. Generalized Rheological Characteristics of Plastic Dispersed Systems. Colloid J. 1966, 28(3): 424-430.
• [4] de la Ossa, F.; Angeles, M.; Torre, M.; Carmen, G.-R. Nitrocellulose in Propellants: Characteristics and Thermal Properties. Adv. Mater. Sci. Res. 2012, 7: 201-220.
• [5] Terner, R.V. The Main Processes of Polymer Processing. Theory and Methods of Calculation. Chemistry, Moscow, 1972, 453.
• [6] Wei, R.; He, Y.; Liu, J.; He, Y.; Mi, W.; Yuen, R.; Wang, J. Experimental Study on The Fire Properties of Nitrocellulose with Different Structures. Materials 2017, 10(3), paper 316: 1-16.
• [7] Vinogradov, G.V.; Klimov, K.I. Creep and Shear Strength of Lubricants. (in Russian, ed. trans.) Reports of the USSR Academy of Sciences. 1950, 71(4): 697-701.
• [8] Gunpowder, Explosives and the State: A Technological History. (Buchanan, B.J., Ed.) Aldershot, Ashgate, 2006, 449; ISBN 0-7546-5259-9.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).