Studies of Resistance of PP/Natural Filler Polymer Composites to Decomposition Caused by Fungi
The article discusses the grain morphology of the natural filler from hazelnut and walnut shell flour. It was observed that the geometry of both meals is similar to each other and resembles uneven balls in shape. The heterogeneity and well-developed outer surface of the flour grains allow for fillin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/6/1368 |
| _version_ | 1797541664902873088 |
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| author | Anna Włodarczyk-Fligier Magdalena Polok-Rubiniec |
| author_facet | Anna Włodarczyk-Fligier Magdalena Polok-Rubiniec |
| author_sort | Anna Włodarczyk-Fligier |
| collection | DOAJ |
| description | The article discusses the grain morphology of the natural filler from hazelnut and walnut shell flour. It was observed that the geometry of both meals is similar to each other and resembles uneven balls in shape. The heterogeneity and well-developed outer surface of the flour grains allow for filling the voids with the polymer matrix. The analysis of the surface of the SEM images allowed to observe the presence of natural filler flour grains in the entire volume of the produced polymer composites, uneven distribution and small agglomerates, as well as the presence of voids, distributed in the matrix and in the matrix/filler interface. As a result of the visual evaluation of the activity of microorganisms (mycelium) on the surface of the produced polymer composite materials PP/hazelnut and walnut shell flour with a different % share, different fraction, it was found that the best fungistatic effect was shown by the samples marked with the symbol hazelnut at the fraction 315–443 µm. The least fungistatic material was found to be the samples with walnut shell meal filler at the fraction 315–443 µm (F2 and F4), on which the microorganisms achieved significant growth (more than 50% of the test area). The highest value of contact angle was obtained for samples with hazelnut filler fraction 315–443 (C2 and C4), which also confirms its best fungistatic effect. |
| first_indexed | 2024-03-10T13:19:10Z |
| format | Article |
| id | doaj.art-47cf6cceb00b49f29a8177fe6740cf1d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:19:10Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-47cf6cceb00b49f29a8177fe6740cf1d2023-11-21T10:08:02ZengMDPI AGMaterials1996-19442021-03-01146136810.3390/ma14061368Studies of Resistance of PP/Natural Filler Polymer Composites to Decomposition Caused by FungiAnna Włodarczyk-Fligier0Magdalena Polok-Rubiniec1Department of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, PolandDepartment of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18a, 44-100 Gliwice, PolandThe article discusses the grain morphology of the natural filler from hazelnut and walnut shell flour. It was observed that the geometry of both meals is similar to each other and resembles uneven balls in shape. The heterogeneity and well-developed outer surface of the flour grains allow for filling the voids with the polymer matrix. The analysis of the surface of the SEM images allowed to observe the presence of natural filler flour grains in the entire volume of the produced polymer composites, uneven distribution and small agglomerates, as well as the presence of voids, distributed in the matrix and in the matrix/filler interface. As a result of the visual evaluation of the activity of microorganisms (mycelium) on the surface of the produced polymer composite materials PP/hazelnut and walnut shell flour with a different % share, different fraction, it was found that the best fungistatic effect was shown by the samples marked with the symbol hazelnut at the fraction 315–443 µm. The least fungistatic material was found to be the samples with walnut shell meal filler at the fraction 315–443 µm (F2 and F4), on which the microorganisms achieved significant growth (more than 50% of the test area). The highest value of contact angle was obtained for samples with hazelnut filler fraction 315–443 (C2 and C4), which also confirms its best fungistatic effect.https://www.mdpi.com/1996-1944/14/6/1368polymeric materialsWPCbiodegradationhazelnut shell flourwalnut shell flourfungi |
| spellingShingle | Anna Włodarczyk-Fligier Magdalena Polok-Rubiniec Studies of Resistance of PP/Natural Filler Polymer Composites to Decomposition Caused by Fungi Materials polymeric materials WPC biodegradation hazelnut shell flour walnut shell flour fungi |
| title | Studies of Resistance of PP/Natural Filler Polymer Composites to Decomposition Caused by Fungi |
| title_full | Studies of Resistance of PP/Natural Filler Polymer Composites to Decomposition Caused by Fungi |
| title_fullStr | Studies of Resistance of PP/Natural Filler Polymer Composites to Decomposition Caused by Fungi |
| title_full_unstemmed | Studies of Resistance of PP/Natural Filler Polymer Composites to Decomposition Caused by Fungi |
| title_short | Studies of Resistance of PP/Natural Filler Polymer Composites to Decomposition Caused by Fungi |
| title_sort | studies of resistance of pp natural filler polymer composites to decomposition caused by fungi |
| topic | polymeric materials WPC biodegradation hazelnut shell flour walnut shell flour fungi |
| url | https://www.mdpi.com/1996-1944/14/6/1368 |
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