Towards the usage of image analysis technique to measure particles size and composition in wood-polymer composites

Michalska-Pożoga, I.; Tomkowski, Robert; Rydzkowski, Tomasz; Thakur, Vijay Kumar

doi:10.1016/j.indcrop.2016.08.005

Cited by 23 publications

(11 citation statements)

References 14 publications

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“…The lignocellulosic materials are biodegradable and their annual biosphere production was estimated to be 90 9 10 9 metric tons. Thus, they represent the most obvious, renewable resource for production of biocomposites (Feifel et al 2015;Kalia et al 2011;Michalska-Po_ zoga et al 2016). Moreover, lignocellulosic fibres, due to the strong cellulose backbone structure and high strength/weight ratio, are at an advantage when compared with many conventional reinforcing materials.…”

Section: Introductionmentioning

confidence: 99%

The effect of chemical modification of wood in ionic liquids on the supermolecular structure and mechanical properties of wood/polypropylene composites

et al. 2018

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Effects of chemical modification of wood with innovative ionic liquid on the supermolecular and morphology of wood/polypropylene composites were investigated using X-ray diffraction, hot stage optical microscopy, and differential scanning calorimetry. For the first time the chemical treatment of wood was conducted solely with newly synthesized ionic liquid, didecyldimethylammonium bis(trifluoromethylsulfonyl)imide. The modification was found to be responsible for significant changes in nucleating abilities of wood in polypropylene matrix. These findings were confirmed by crystallization temperature, crystal conversion, crystallization half-time parameters, as well as observation of transcrystalline structures. Ionic liquid treatment of wood influenced also formation of polymorphic forms of polymer matrix. In contrast to composites with untreated wood, in composites with modified wood filler formation of b-phase of polypropylene was observed. This fact was discussed in view of differences in nucleating activity of lignocellulosic filler, resulting from chemical treatment with ionic liquid. Moreover, a relationship between mechanical properties of composites and the phenomena taking place at the polymer-filler interface, controlled by chemical modifications of lignocellulosic components, was evaluated.

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Section: Introductionmentioning

confidence: 99%

The effect of chemical modification of wood in ionic liquids on the supermolecular structure and mechanical properties of wood/polypropylene composites

et al. 2018

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“…Images with a resolution of 300 dpi were obtained. The image processing algorithm uses a two-dimensional analysis of the registered images [ 1 ]. The methodology presented by the author of the article in the publication from 2016 [ 1 ] was used to analyze the images of composite tiles.…”

Section: Methodsmentioning

confidence: 99%

“…The presented article is a practical application of the method and the model described in the 2016 article. The procedure, co-authored by research workers of the Koszalin University of Technology and the College of Mechanical and Material Engineering, was published in Industrial Crops and Products 2016 [ 1 ].…”

Section: Methodsmentioning

confidence: 99%

“…Polymer composites with at least one biological material component have attracted the attention of researchers worldwide. It was found that the properties of the obtained polymer composites depend not only on their composition but also on the size and form of individual components used for their preparation [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. This finding is important not only in the case of materials reinforced with fillers but also in the case of single-material composites referred to as monopolymer composites (MPCs) or single-polymer composites (SPCs) where the material exists in two different forms [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Particles’ Size and Degree of Distribution of a Wooden Filler in Wood–Polymer Composites

Michalska-Pożoga

Szczepanek

2021

Materials

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In wood–polymer composites (WPCs), regardless of the origin of the filler and its dimensions, their significant role in changing the properties of the WPCs’ material was found. Given the above, it is of particular importance to determine the size of the wood filler particles after their production. In addition, it is also important to determine the degree of distribution of the filler in the polymer matrix. The methodology for determining particle size and distribution is complex, even when using image analysis computer systems. This article presents the application and implementation of the multi-stage procedure for determining the size of wood particles and the degree of their distribution in the WPCs by means of image analysis using a numerical calculation program. The procedure, co-authored by the researchers at the Koszalin University of Technology and School of Mechanical and Materials Engineering, is published in the Industrial Crops and Products 2016 Comparing the results obtained for the PP/Lignocel 3-4 and PP/Lignocel C120 composites produced under highly different conditions in the target zone, it was found that the degree of the component distribution in the polymer matrix was significantly influenced by the width of the target gap. In both cases, the best homogeneity of the material and a good distribution of the filler in the polymer matrix was achieved within the parameters that have a mild effect on the material and allow it to stay longer in the plasticizing system, i.e., Ws = 1.0–3.0 mm with simultaneous impact medium to high speed in the range n = 26–40 rpm.

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“…The share of first recycled plastic decreases for the share of repeatedly processed material. This effect can be expressed in the following equation 1: (1) where: Z n k is the percentage share in the k-th cycle of the raw material previously used n-times, assuming that Z 0 1 =100% (in the first cycle only the original granulate is used). For k ≤ n: Z n k = 0% (in the k-th cycle the recyclate, which was processed the greatest number of times,…”

Section: Accepted Manuscriptmentioning

confidence: 99%

A study on the thermodynamic changes in the mixture of polypropylene (PP) with varying contents of technological and post-user recyclates for sustainable nanocomposites

Michalska-Pożoga

Rydzkowski

Mazur

et al. 2017

Vacuum

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Towards the usage of image analysis technique to measure particles size and composition in wood-polymer composites

Cited by 23 publications

References 14 publications

The effect of chemical modification of wood in ionic liquids on the supermolecular structure and mechanical properties of wood/polypropylene composites

The effect of chemical modification of wood in ionic liquids on the supermolecular structure and mechanical properties of wood/polypropylene composites

Analysis of Particles’ Size and Degree of Distribution of a Wooden Filler in Wood–Polymer Composites

A study on the thermodynamic changes in the mixture of polypropylene (PP) with varying contents of technological and post-user recyclates for sustainable nanocomposites

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