A Dialdehyde Starch-Based Adhesive For Medium-Density Fiberboards
Bio-based adhesives have gained considerable attention in the last years as more sustainable and healthier alternatives to the formaldehyde-based adhesives used today in wood-based panel manufacturing. In this study, dialdehyde starch (DAS) with various aldehyde contents was prepared by using sodium...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2023-01-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22356 |
| _version_ | 1797794803132399616 |
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| author | Nicolas Neitzel Reza Hosseinpourpia Stergios Adamopoulos |
| author_facet | Nicolas Neitzel Reza Hosseinpourpia Stergios Adamopoulos |
| author_sort | Nicolas Neitzel |
| collection | DOAJ |
| description | Bio-based adhesives have gained considerable attention in the last years as more sustainable and healthier alternatives to the formaldehyde-based adhesives used today in wood-based panel manufacturing. In this study, dialdehyde starch (DAS) with various aldehyde contents was prepared by using sodium metaperiodate as an oxidizing agent. Characterizations were performed by employing Fourier-transform infrared spectroscopy, nuclear magnetic resonance, and thermal stability analysis. Different adhesive compositions were used for making medium-density fiberboard (MDF) panels. They were based on DAS (12 wt% based on fiber), emulsifiable diphenylmethane diisocyanate (eMDI, 2-4 wt% based on DAS), and microfibrillated cellulose (MFC, 0.5-1.0 wt% based on DAS). Fibers and the adhesive components were mixed with a combination of dry mixing and wet spraying. The physical and mechanical properties of MDF panels bonded with different DAS-based adhesives were compared with those of melamine urea-formaldehyde (MUF) adhesive and sole eMDI. The results showed that the MDF panels made with DAS-MFC-eMDI of 99.52% bio-based content showed comparable properties to standard panels with a commercial MUF adhesive. It was implied that DAS in the presence of small amount of eMDI can create strong bonds with wood fibers, while an additional positive effect on bonding was due to the contact surface enlargement of MFC. |
| first_indexed | 2024-03-13T03:08:20Z |
| format | Article |
| id | doaj.art-eb1021dc3b2b47be8748659304f68c96 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-03-13T03:08:20Z |
| publishDate | 2023-01-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-eb1021dc3b2b47be8748659304f68c962023-06-26T18:47:23ZengNorth Carolina State UniversityBioResources1930-21262023-01-0118121552171360A Dialdehyde Starch-Based Adhesive For Medium-Density FiberboardsNicolas Neitzel0Reza Hosseinpourpia1https://orcid.org/0000-0003-0883-2306Stergios Adamopoulos2Department of Forestry and Wood Technology, Linnaeus UniversityDepartment of Forestry and Wood Technology, Linnaeus University; College of Forest Resources and Environmental Science, Michigan Technological UniversityDepartment of Forest Biomaterials and Technology, Swedish University of Agricultural SciencesBio-based adhesives have gained considerable attention in the last years as more sustainable and healthier alternatives to the formaldehyde-based adhesives used today in wood-based panel manufacturing. In this study, dialdehyde starch (DAS) with various aldehyde contents was prepared by using sodium metaperiodate as an oxidizing agent. Characterizations were performed by employing Fourier-transform infrared spectroscopy, nuclear magnetic resonance, and thermal stability analysis. Different adhesive compositions were used for making medium-density fiberboard (MDF) panels. They were based on DAS (12 wt% based on fiber), emulsifiable diphenylmethane diisocyanate (eMDI, 2-4 wt% based on DAS), and microfibrillated cellulose (MFC, 0.5-1.0 wt% based on DAS). Fibers and the adhesive components were mixed with a combination of dry mixing and wet spraying. The physical and mechanical properties of MDF panels bonded with different DAS-based adhesives were compared with those of melamine urea-formaldehyde (MUF) adhesive and sole eMDI. The results showed that the MDF panels made with DAS-MFC-eMDI of 99.52% bio-based content showed comparable properties to standard panels with a commercial MUF adhesive. It was implied that DAS in the presence of small amount of eMDI can create strong bonds with wood fibers, while an additional positive effect on bonding was due to the contact surface enlargement of MFC.https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22356starch oxidationbio-based adhesivesmicrofibrillated cellulosewood-based panelsmdf |
| spellingShingle | Nicolas Neitzel Reza Hosseinpourpia Stergios Adamopoulos A Dialdehyde Starch-Based Adhesive For Medium-Density Fiberboards BioResources starch oxidation bio-based adhesives microfibrillated cellulose wood-based panels mdf |
| title | A Dialdehyde Starch-Based Adhesive For Medium-Density Fiberboards |
| title_full | A Dialdehyde Starch-Based Adhesive For Medium-Density Fiberboards |
| title_fullStr | A Dialdehyde Starch-Based Adhesive For Medium-Density Fiberboards |
| title_full_unstemmed | A Dialdehyde Starch-Based Adhesive For Medium-Density Fiberboards |
| title_short | A Dialdehyde Starch-Based Adhesive For Medium-Density Fiberboards |
| title_sort | dialdehyde starch based adhesive for medium density fiberboards |
| topic | starch oxidation bio-based adhesives microfibrillated cellulose wood-based panels mdf |
| url | https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22356 |
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