DISPERSION OF CELLULOSIC MATERIALS BY AERODYNAMIC METHOD

UDC 676.054.3

  • Galina Kirillovna Malinovskaya St. Petersburg State University of Industrial Technologies and Design, Higher School of Technology and Energy Email: m-gk@mail.ru
  • Yekaterina Grigor'yevna Smirnova St. Petersburg State University of Industrial Technologies and Design, Higher School of Technology and Energy Email: smirnovalta@gmail.com
DOI_disc_logo https://doi.org/10.14258/jcprm.20230310602
Keywords: cellulose fluff, paper aerodynamic forming, dispersant, fiber specific surface, multilayer paper

Abstract

The dissolution of primary and secondary cellulose semi-finished products in order to obtain a fluff fibrous product is becoming increasingly important due to the growth of its use in various industries. The existing equipment dissolves the dried semi-finished product, while the cellulose fibers partially lose their paper-forming properties. In the technology of aerodynamic forming of paper, a wet cellulose semi-finished product is dispersed, which preserves the ability of fibers to bond formation and excludes their mechanical destruction.

Fluff pulp was obtained by dispersing dry and wet cellulose semi-finished product оn a laboratory installation for aerodynamic molding. The comparison of the properties of fibers by the value of their specific surface area and the ability to form paper with the strength characteristics required for operation is carried out. The breaking force value of paper formed from wet fibers is 4 times higher than that of paper from dry fibers.

The possibility of using fluff pulp in the manufacture of multilayer paper for sanitary – hygienic purposes, which meets the requirements of GOST Ru 52354-2005 group B in terms of the values of the destructive force, is shown.

The aerodynamic paper disperser can be used as an alternative equipment for separating cellulosic materials while screening the fibers.

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Author Biographies

Galina Kirillovna Malinovskaya, St. Petersburg State University of Industrial Technologies and Design, Higher School of Technology and Energy

кандидат химических наук, ведущий инженер ПНИЛ

Yekaterina Grigor'yevna Smirnova, St. Petersburg State University of Industrial Technologies and Design, Higher School of Technology and Energy

профессор, доктор технических наук, заведующая кафедрой технологии бумаги и картона

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Published
2023-10-02
How to Cite
1. Malinovskaya G. K., Smirnova Y. G. DISPERSION OF CELLULOSIC MATERIALS BY AERODYNAMIC METHOD // chemistry of plant raw material, 2023. № 3. P. 329-336. URL: http://journal.asu.ru/cw/article/view/10602.
Issue
No 3 (2023)
Section
Technology

Copyright (c) 2023 chemistry of plant raw material

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