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Evaluation of the Formation Quality of Multilayer Fiber Composite Material According to Cross-Sectional Cut Microstructure

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Fibre Chemistry Aims and scope

The formation number of multilayer fibrous composite materials such as paper and cardboard comprises an important indicator for evaluating product quality, ensuring a degree of perfection in the mass preparation technology, as well as determining forming equipment and the quality of raw materials. The main disadvantages of the existing methods for determining the formation number involve the impossibility of separately evaluating the variations in the formation of each layer and the limitations inherent to instruments for testing thick materials. These disadvantages can be eliminated by the proposed method for analyzing the microstructure of the cross-sectional cut of a multilayer fibrous composite material. According to this method, formation quality is evaluated by an indicator inversely proportional to the look-through index representing the result of a statistical analysis of the vertical-plane size distribution of floccules (fiber clusters) in the cross section of each layer and the board as a whole. By analogy with the diagrams of the distribution of the brightness of the light transmitted through a fibrous material, uniformity diagrams of the floccule size distribution in the vertical plane are applicable for evaluating the quality of formation of each layer separately as well as the board as a whole.

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Correspondence to N.P. Midukov.

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Translated from Khimicheskie Volokna, No. 2, pp. 59-63, March-April, 2021.

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Kurov, V., Midukov, N. Evaluation of the Formation Quality of Multilayer Fiber Composite Material According to Cross-Sectional Cut Microstructure. Fibre Chem 53, 115–119 (2021). https://doi.org/10.1007/s10692-021-10250-w

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  • DOI: https://doi.org/10.1007/s10692-021-10250-w

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