Fabrication and Characterization of EVA Resins as Adhesives in Plywood
The practical problem of free formaldehyde pollution in the plywood industry is that polyethylene films have been shown to be able to replace some urea–formaldehyde resins for wood adhesives. To broaden the variety of thermoplastic plywood, reduce the hot-press temperature, and save energy consumpti...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/8/1834 |
| _version_ | 1797603719967145984 |
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| author | Yu Zhang Ye He Jiayan Yu Yuxin Lu Xinhao Zhang Lu Fang |
| author_facet | Yu Zhang Ye He Jiayan Yu Yuxin Lu Xinhao Zhang Lu Fang |
| author_sort | Yu Zhang |
| collection | DOAJ |
| description | The practical problem of free formaldehyde pollution in the plywood industry is that polyethylene films have been shown to be able to replace some urea–formaldehyde resins for wood adhesives. To broaden the variety of thermoplastic plywood, reduce the hot-press temperature, and save energy consumption, an ethylene–vinyl acetate (EVA) film was selected as a wood adhesive to manufacture a novel wood–plastic composite plywood via hot-press and secondary press processes. The effects of the hot-press and secondary press processes at different levels on the physical–mechanical properties of EVA plywood (tensile shear strength, 24 h water absorption, and immersion peel performance) were evaluated. The results showed that the properties of the resulting plywood using the EVA film as an adhesive could meet the type III plywood standard. The optimum hot-press time was 1 min/mm, the hot-press temperature was 110–120 °C, the hot-press pressure was 1 MPa, the dosage film was 163 g/m<sup>2</sup>, the secondary press time was 5 min, the secondary press pressure was 0.5 MPa, and the secondary press temperature was 25 °C. EVA plywood can be used in indoor environments. |
| first_indexed | 2024-03-11T04:35:51Z |
| format | Article |
| id | doaj.art-2fc7bbc7d7e44a66be5aaad0a56ec86d |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T04:35:51Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-2fc7bbc7d7e44a66be5aaad0a56ec86d2023-11-17T21:01:13ZengMDPI AGPolymers2073-43602023-04-01158183410.3390/polym15081834Fabrication and Characterization of EVA Resins as Adhesives in PlywoodYu Zhang0Ye He1Jiayan Yu2Yuxin Lu3Xinhao Zhang4Lu Fang5College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaThe practical problem of free formaldehyde pollution in the plywood industry is that polyethylene films have been shown to be able to replace some urea–formaldehyde resins for wood adhesives. To broaden the variety of thermoplastic plywood, reduce the hot-press temperature, and save energy consumption, an ethylene–vinyl acetate (EVA) film was selected as a wood adhesive to manufacture a novel wood–plastic composite plywood via hot-press and secondary press processes. The effects of the hot-press and secondary press processes at different levels on the physical–mechanical properties of EVA plywood (tensile shear strength, 24 h water absorption, and immersion peel performance) were evaluated. The results showed that the properties of the resulting plywood using the EVA film as an adhesive could meet the type III plywood standard. The optimum hot-press time was 1 min/mm, the hot-press temperature was 110–120 °C, the hot-press pressure was 1 MPa, the dosage film was 163 g/m<sup>2</sup>, the secondary press time was 5 min, the secondary press pressure was 0.5 MPa, and the secondary press temperature was 25 °C. EVA plywood can be used in indoor environments.https://www.mdpi.com/2073-4360/15/8/1834wood–plastic plywoodhot-presssecondary pressthermoplastic resinphysical–mechanical propertiesaldehyde-free |
| spellingShingle | Yu Zhang Ye He Jiayan Yu Yuxin Lu Xinhao Zhang Lu Fang Fabrication and Characterization of EVA Resins as Adhesives in Plywood Polymers wood–plastic plywood hot-press secondary press thermoplastic resin physical–mechanical properties aldehyde-free |
| title | Fabrication and Characterization of EVA Resins as Adhesives in Plywood |
| title_full | Fabrication and Characterization of EVA Resins as Adhesives in Plywood |
| title_fullStr | Fabrication and Characterization of EVA Resins as Adhesives in Plywood |
| title_full_unstemmed | Fabrication and Characterization of EVA Resins as Adhesives in Plywood |
| title_short | Fabrication and Characterization of EVA Resins as Adhesives in Plywood |
| title_sort | fabrication and characterization of eva resins as adhesives in plywood |
| topic | wood–plastic plywood hot-press secondary press thermoplastic resin physical–mechanical properties aldehyde-free |
| url | https://www.mdpi.com/2073-4360/15/8/1834 |
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