Formaldehyde Emission in Micron-Sized Wollastonite-Treated Plywood Bonded with Soy Flour and Urea-Formaldehyde Resin
Soy flour was partly substituted for urea-formaldehyde (UF) resin with different content to investigate its effect on formaldehyde emission in three-layer plywood panels. In each square meter of panels, 300 g of resin was used (wet weight basis of resin). Micron-sized wollastonite was added to the r...
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MDPI AG
2020-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/19/6709 |
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| author | Hamid R. Taghiyari Seyed Behzad Hosseini Saman Ghahri Mohammad Ghofrani Antonios N. Papadopoulos |
| author_facet | Hamid R. Taghiyari Seyed Behzad Hosseini Saman Ghahri Mohammad Ghofrani Antonios N. Papadopoulos |
| author_sort | Hamid R. Taghiyari |
| collection | DOAJ |
| description | Soy flour was partly substituted for urea-formaldehyde (UF) resin with different content to investigate its effect on formaldehyde emission in three-layer plywood panels. In each square meter of panels, 300 g of resin was used (wet weight basis of resin). Micron-sized wollastonite was added to the resin mixture at 5% and 10% consumption levels (wet weight basis of resin) to determine its potential effects as a reinforcing filler to mitigate the negative effects of addition of soy flour. Results showed a decreasing trend in formaldehyde emission as soy flour content increased to 20%. The highest shear-strength values were observed in panels with 10% and 15% soy flour content. The addition of wollastonite did not have a significant effect on formaldehyde emission, but it decreased the shear strength in soy-treated panels, although the values were still higher than those of control panels. Wollastonite significantly mitigated the negative effects of soy flour on the water absorption and thickness swelling of panels. It was concluded that 10% of soy flour and 5% of wollastonite provided the lowest formaldehyde emission and the most optimum physical and mechanical properties. |
| first_indexed | 2024-03-10T16:02:55Z |
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| id | doaj.art-9ae73004497448a2b6b751cd3a4e674f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T16:02:55Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-9ae73004497448a2b6b751cd3a4e674f2023-11-20T15:05:59ZengMDPI AGApplied Sciences2076-34172020-09-011019670910.3390/app10196709Formaldehyde Emission in Micron-Sized Wollastonite-Treated Plywood Bonded with Soy Flour and Urea-Formaldehyde ResinHamid R. Taghiyari0Seyed Behzad Hosseini1Saman Ghahri2Mohammad Ghofrani3Antonios N. Papadopoulos4Wood Science and Technology Department, Faculty of Materials Engineering & New Technologies, Shahid Rajaee Teacher Training University, Tehran 16788-15811, IranDepartment of Wood and Paper Sciences, Tarbiat Modares University, Tehran 14115-111, IranDepartment of Wood and Paper Sciences, Tarbiat Modares University, Tehran 14115-111, IranWood Science and Technology Department, Faculty of Materials Engineering & New Technologies, Shahid Rajaee Teacher Training University, Tehran 16788-15811, IranLaboratory of Wood Chemistry and Technology, Department of Forestry and Natural Environment, International Hellenic University, GR-661 00 Drama, GreeceSoy flour was partly substituted for urea-formaldehyde (UF) resin with different content to investigate its effect on formaldehyde emission in three-layer plywood panels. In each square meter of panels, 300 g of resin was used (wet weight basis of resin). Micron-sized wollastonite was added to the resin mixture at 5% and 10% consumption levels (wet weight basis of resin) to determine its potential effects as a reinforcing filler to mitigate the negative effects of addition of soy flour. Results showed a decreasing trend in formaldehyde emission as soy flour content increased to 20%. The highest shear-strength values were observed in panels with 10% and 15% soy flour content. The addition of wollastonite did not have a significant effect on formaldehyde emission, but it decreased the shear strength in soy-treated panels, although the values were still higher than those of control panels. Wollastonite significantly mitigated the negative effects of soy flour on the water absorption and thickness swelling of panels. It was concluded that 10% of soy flour and 5% of wollastonite provided the lowest formaldehyde emission and the most optimum physical and mechanical properties.https://www.mdpi.com/2076-3417/10/19/6709biobased resinsformaldehyde emissionmineralswollastonitewood composite panels |
| spellingShingle | Hamid R. Taghiyari Seyed Behzad Hosseini Saman Ghahri Mohammad Ghofrani Antonios N. Papadopoulos Formaldehyde Emission in Micron-Sized Wollastonite-Treated Plywood Bonded with Soy Flour and Urea-Formaldehyde Resin Applied Sciences biobased resins formaldehyde emission minerals wollastonite wood composite panels |
| title | Formaldehyde Emission in Micron-Sized Wollastonite-Treated Plywood Bonded with Soy Flour and Urea-Formaldehyde Resin |
| title_full | Formaldehyde Emission in Micron-Sized Wollastonite-Treated Plywood Bonded with Soy Flour and Urea-Formaldehyde Resin |
| title_fullStr | Formaldehyde Emission in Micron-Sized Wollastonite-Treated Plywood Bonded with Soy Flour and Urea-Formaldehyde Resin |
| title_full_unstemmed | Formaldehyde Emission in Micron-Sized Wollastonite-Treated Plywood Bonded with Soy Flour and Urea-Formaldehyde Resin |
| title_short | Formaldehyde Emission in Micron-Sized Wollastonite-Treated Plywood Bonded with Soy Flour and Urea-Formaldehyde Resin |
| title_sort | formaldehyde emission in micron sized wollastonite treated plywood bonded with soy flour and urea formaldehyde resin |
| topic | biobased resins formaldehyde emission minerals wollastonite wood composite panels |
| url | https://www.mdpi.com/2076-3417/10/19/6709 |
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