Water-Repellent Characteristics of Beech Wood Coated with Parylene-N
In recent years, awareness regarding sustainability and the responsible usage of natural resources has become more important in our modern society. As a result, wood as a building material experiences a renaissance. However, depending on the use case, protective measures may be necessary to increase...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/13/2076 |
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| author | Robert Köhler Philipp Sauerbier Mirco Weber Roland-Christian Wander Stephan Wieneke Wolfgang Viöl |
| author_facet | Robert Köhler Philipp Sauerbier Mirco Weber Roland-Christian Wander Stephan Wieneke Wolfgang Viöl |
| author_sort | Robert Köhler |
| collection | DOAJ |
| description | In recent years, awareness regarding sustainability and the responsible usage of natural resources has become more important in our modern society. As a result, wood as a building material experiences a renaissance. However, depending on the use case, protective measures may be necessary to increase wood’s durability and prolong its service life. The chemical vapor deposition (CVD) of parylene-N layers offers an interesting alternative to solvent-based and potentially environmentally harmful coating processes. The CVD process utilized in this study generated transparent, uniform barrier layers and can be applied on an extensive range of substrates without the involvement of any solvents. In this study, European beech wood samples (<i>Fagus sylvatica</i> L.) were coated with parylene-N using the CVD process, with paracyclophane as a precursor. The aim of the study was to analyze the water absorption of beech wood, in relation to the different layer thicknesses of parylene-N. Therefore, four different coating thicknesses from 0.5 to 40 μm were deposited, depending on the initial amount of precursor used. The deposited layers were analyzed by reflection interference spectroscopy and scanning electron microscopy, and their chemical structures and compositions were investigated by X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy. Due to the chemical structure of parylene-N, the deposited layers led to a significantly increased water contact angle and reduced the water uptake by 25–34% compared to the uncoated reference samples. A linear correlation between layer thickness and water absorption was observed. The coating of wood with parylene-N provides a promising water barrier, even with thin layers. |
| first_indexed | 2024-03-10T10:06:04Z |
| format | Article |
| id | doaj.art-f1c13457aa49432689af8ef48c053846 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T10:06:04Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-f1c13457aa49432689af8ef48c0538462023-11-22T01:32:32ZengMDPI AGPolymers2073-43602021-06-011313207610.3390/polym13132076Water-Repellent Characteristics of Beech Wood Coated with Parylene-NRobert Köhler0Philipp Sauerbier1Mirco Weber2Roland-Christian Wander3Stephan Wieneke4Wolfgang Viöl5Laboratory of Laser and Plasma Technologies, Faculty of Engineering and Health, University of Applied Sciences and Arts, Von-Ossietzky-Str. 99, 37085 Göttingen, GermanyWood Biology and Wood Products, Faculty of Forest Sciences, University of Goettingen, Büsgenweg 4, 37077 Göttingen, GermanyLaboratory of Laser and Plasma Technologies, Faculty of Engineering and Health, University of Applied Sciences and Arts, Von-Ossietzky-Str. 99, 37085 Göttingen, GermanyLaboratory of Laser and Plasma Technologies, Faculty of Engineering and Health, University of Applied Sciences and Arts, Von-Ossietzky-Str. 99, 37085 Göttingen, GermanyLaboratory of Laser and Plasma Technologies, Faculty of Engineering and Health, University of Applied Sciences and Arts, Von-Ossietzky-Str. 99, 37085 Göttingen, GermanyLaboratory of Laser and Plasma Technologies, Faculty of Engineering and Health, University of Applied Sciences and Arts, Von-Ossietzky-Str. 99, 37085 Göttingen, GermanyIn recent years, awareness regarding sustainability and the responsible usage of natural resources has become more important in our modern society. As a result, wood as a building material experiences a renaissance. However, depending on the use case, protective measures may be necessary to increase wood’s durability and prolong its service life. The chemical vapor deposition (CVD) of parylene-N layers offers an interesting alternative to solvent-based and potentially environmentally harmful coating processes. The CVD process utilized in this study generated transparent, uniform barrier layers and can be applied on an extensive range of substrates without the involvement of any solvents. In this study, European beech wood samples (<i>Fagus sylvatica</i> L.) were coated with parylene-N using the CVD process, with paracyclophane as a precursor. The aim of the study was to analyze the water absorption of beech wood, in relation to the different layer thicknesses of parylene-N. Therefore, four different coating thicknesses from 0.5 to 40 μm were deposited, depending on the initial amount of precursor used. The deposited layers were analyzed by reflection interference spectroscopy and scanning electron microscopy, and their chemical structures and compositions were investigated by X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy. Due to the chemical structure of parylene-N, the deposited layers led to a significantly increased water contact angle and reduced the water uptake by 25–34% compared to the uncoated reference samples. A linear correlation between layer thickness and water absorption was observed. The coating of wood with parylene-N provides a promising water barrier, even with thin layers.https://www.mdpi.com/2073-4360/13/13/2076parylene-Nbeech woodCVDwood protectioncoatingwater absorption |
| spellingShingle | Robert Köhler Philipp Sauerbier Mirco Weber Roland-Christian Wander Stephan Wieneke Wolfgang Viöl Water-Repellent Characteristics of Beech Wood Coated with Parylene-N Polymers parylene-N beech wood CVD wood protection coating water absorption |
| title | Water-Repellent Characteristics of Beech Wood Coated with Parylene-N |
| title_full | Water-Repellent Characteristics of Beech Wood Coated with Parylene-N |
| title_fullStr | Water-Repellent Characteristics of Beech Wood Coated with Parylene-N |
| title_full_unstemmed | Water-Repellent Characteristics of Beech Wood Coated with Parylene-N |
| title_short | Water-Repellent Characteristics of Beech Wood Coated with Parylene-N |
| title_sort | water repellent characteristics of beech wood coated with parylene n |
| topic | parylene-N beech wood CVD wood protection coating water absorption |
| url | https://www.mdpi.com/2073-4360/13/13/2076 |
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