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Abstract <p>The effect of a natural biocide based on forest chemical raw materials as an additive to cellulose acetate (CA) casting solutions on the structure and properties of the resulting membranes was studied. The NMR method was used to determine the component composition of rosin and turpentine, from which rosin terpene maleic adduct (RTMA) was obtained. Successful modification of the AC-membranes was confirmed by the results of FTIR-spectroscopy. The operational properties of AC-membranes were studied (electron microscopy, atomic force microscopy, study of the transport properties of membranes). It was shown that the introduction of 1.5–2.0 wt % RTMA into the casting solutions does not affect the transport properties of the membranes, but decrease the surface roughness of the selective layer. At the same time, modified membranes are characterized by increased antibacterial resistance and resistance to fungal fouling.</p>

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Structure and Properties of Cellulose Acetate Membranes Modified via Biocidal Compositions Obtained from Forest Chemical Raw Materials

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • T. A. Hliavitskaya,
  • E. I. Gapan’kova,
  • I. A. Latyshevich,
  • E. D. Skakovskii,
  • V. S. Kauychkina,
  • G. B. Melnikova,
  • Kh. Kh. Turaev,
  • Sh. A. Kasimov,
  • A. V. Bildyukevich

摘要

Abstract

The effect of a natural biocide based on forest chemical raw materials as an additive to cellulose acetate (CA) casting solutions on the structure and properties of the resulting membranes was studied. The NMR method was used to determine the component composition of rosin and turpentine, from which rosin terpene maleic adduct (RTMA) was obtained. Successful modification of the AC-membranes was confirmed by the results of FTIR-spectroscopy. The operational properties of AC-membranes were studied (electron microscopy, atomic force microscopy, study of the transport properties of membranes). It was shown that the introduction of 1.5–2.0 wt % RTMA into the casting solutions does not affect the transport properties of the membranes, but decrease the surface roughness of the selective layer. At the same time, modified membranes are characterized by increased antibacterial resistance and resistance to fungal fouling.