Acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol-formaldehyde resin in bonding tropical plywood
One of the limitations in using low molecular weight phenol-formaldehyde (LmwPF) resin as a binder for wood-based panels is the amount of the free formaldehyde being emitted during soaking, pressing and sometimes during the earlier stage of application. Tannin from bark extracts is rich in phenolic...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/12907/1/Acacia%20mangium%20tannin%20as%20formaldehyde%20scavenger%20for%20low%20molecular%20weight%20phenol.pdf |
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| author | Hoong, Yeoh Beng Md. Tahir, Paridah Loh, Yueh Feng Koh, Mop Poh Abdullah, Luqman Chuah Ashaari, Zaidon |
| author_facet | Hoong, Yeoh Beng Md. Tahir, Paridah Loh, Yueh Feng Koh, Mop Poh Abdullah, Luqman Chuah Ashaari, Zaidon |
| author_sort | Hoong, Yeoh Beng |
| collection | UPM |
| description | One of the limitations in using low molecular weight phenol-formaldehyde (LmwPF) resin as a binder for wood-based panels is the amount of the free formaldehyde being emitted during soaking, pressing and sometimes during the earlier stage of application. Tannin from bark extracts is rich in phenolic compounds, and thus may be able to absorb this free formaldehyde and at the same time provide strength to the joint. In this study, tannin–phenol-formaldehyde adhesives were prepared by blending Acacia mangium bark extracts (40% solids) with low molecular weight phenol-formaldehyde (40% solids at 1:1 ratio). The tannin–LmwPF adhesive produced cured within 4 min at 130°C, reduced the free formaldehyde to level E1 of European norm EN-120. The 3-ply plywood had acceptable shear strength (>1.0 MPa) exceeding the minimum requirements of European norms EN-314-1 and EN-314-2:1993 for interior and exterior applications, respectively. The study has shown that Acacia mangium tannin can be used as formaldehyde scavenger in LmwPF resin without compromising the strength of the joints. |
| first_indexed | 2024-03-06T07:26:46Z |
| format | Article |
| id | upm.eprints-12907 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:26:46Z |
| publishDate | 2010 |
| publisher | Taylor & Francis |
| record_format | dspace |
| spelling | upm.eprints-129072015-09-14T23:45:11Z http://psasir.upm.edu.my/id/eprint/12907/ Acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol-formaldehyde resin in bonding tropical plywood Hoong, Yeoh Beng Md. Tahir, Paridah Loh, Yueh Feng Koh, Mop Poh Abdullah, Luqman Chuah Ashaari, Zaidon One of the limitations in using low molecular weight phenol-formaldehyde (LmwPF) resin as a binder for wood-based panels is the amount of the free formaldehyde being emitted during soaking, pressing and sometimes during the earlier stage of application. Tannin from bark extracts is rich in phenolic compounds, and thus may be able to absorb this free formaldehyde and at the same time provide strength to the joint. In this study, tannin–phenol-formaldehyde adhesives were prepared by blending Acacia mangium bark extracts (40% solids) with low molecular weight phenol-formaldehyde (40% solids at 1:1 ratio). The tannin–LmwPF adhesive produced cured within 4 min at 130°C, reduced the free formaldehyde to level E1 of European norm EN-120. The 3-ply plywood had acceptable shear strength (>1.0 MPa) exceeding the minimum requirements of European norms EN-314-1 and EN-314-2:1993 for interior and exterior applications, respectively. The study has shown that Acacia mangium tannin can be used as formaldehyde scavenger in LmwPF resin without compromising the strength of the joints. Taylor & Francis 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/12907/1/Acacia%20mangium%20tannin%20as%20formaldehyde%20scavenger%20for%20low%20molecular%20weight%20phenol.pdf Hoong, Yeoh Beng and Md. Tahir, Paridah and Loh, Yueh Feng and Koh, Mop Poh and Abdullah, Luqman Chuah and Ashaari, Zaidon (2010) Acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol-formaldehyde resin in bonding tropical plywood. Journal of Adhesion Science and Technology, 24 (8-10). pp. 1653-1664. ISSN 0169-4243; ESSN: 1568-5616 10.1163/016942410X507740 |
| spellingShingle | Hoong, Yeoh Beng Md. Tahir, Paridah Loh, Yueh Feng Koh, Mop Poh Abdullah, Luqman Chuah Ashaari, Zaidon Acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol-formaldehyde resin in bonding tropical plywood |
| title | Acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol-formaldehyde resin in bonding tropical plywood |
| title_full | Acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol-formaldehyde resin in bonding tropical plywood |
| title_fullStr | Acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol-formaldehyde resin in bonding tropical plywood |
| title_full_unstemmed | Acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol-formaldehyde resin in bonding tropical plywood |
| title_short | Acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol-formaldehyde resin in bonding tropical plywood |
| title_sort | acacia mangium tannin as formaldehyde scavenger for low molecular weight phenol formaldehyde resin in bonding tropical plywood |
| url | http://psasir.upm.edu.my/id/eprint/12907/1/Acacia%20mangium%20tannin%20as%20formaldehyde%20scavenger%20for%20low%20molecular%20weight%20phenol.pdf |
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