ISSN 2310-5283 e-ISSN 3041-1432 UDC 67; 68; 33
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https://doi.org/10.36910/6775-2310-5283-2022-15-28

Vol. 15, No. 1, 2022

317-327

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    • Preparation of cellulose microfiber from trust of technical hemp and flax

    О. Melnyk М. Melnychuk Vitalii Kashytskyi

    Received 17.10.2021, Revised 21.12.2021, Accepted 18.02.2022

    Abstract

    Purpose.Determine the optimal method of obtaining microcellulose from technical hemptrusts, hempfibers and flax. Results. In recent years, research on materials from renewable natural sources has increased significantly. Gelatin, dextrin, polylactide, pectin and casein composites are examples of such materials. As a result, knowledge about the functional characteristics of new materials and the scope of such natural polymers is constantly improving. Improvement of the composites properties can be achieved by obtaining biocomposite materials by reinforcing with natural fibers. Studies are devoted to the development of such materials, in particular the possibility of forming a copolymer of casein and methylcellulose and obtaining films. Accordingly, the aim of our work was to develop a method for producing biodegradable microfibers. To achieve this goal, the following tasks were set: to obtain microcellulose from fibers and technical hemp trusts, to study the structure and chemical composition. The method of obtaining microcellulose from vegetable raw materials was determined in the work. The optimal content of chemical reagents and processing modes are determined. The yield of cellulose was: 30% - for technical hemp fibers, then "cellulose-1"; 35% - long flax (flax fiber, long from the trusts of long soaking), then "cellulose-2"; and 40% - hemp fibers from the dew wetting trust of the spring harvest period,then"cellulose-3". According to the results of the study, it was noticed that EDS is not the optimal method of checking the chemical composition.Because oxygen and carbon are present in many organic compounds. Therefore, an additional analysis of organic compounds was performed using FTIR infrared spectroscopy. The study of the chemical composition showed that the samples of microcellulose do not contain in their composition any harmful components and heavy metals. Accordingly, the filler is environmentally friendly and can be used for the production of biocomposites, such as food packaging. Study the mechanical and technological properties of cellulose from trusts, hemp and flax fibers is planned in the future.

    Keywords:

    microcellulose; hemp fibers; biocomposites; biodegradability

    Suggested citation
    Melnyk, О., Melnychuk, М., & Kashytskyi, V. (2022). Preparation of cellulose microfiber from trust of technical hemp and flax. Commodity Bulletin, 15(1), 317-327. https://doi.org/10.36910/6775-2310-5283-2022-15-28
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