HIGH MECHANICAL STRENGTH WOOD POLYMER COMPOSITES BY USE OF A NEW POLYURETHANE BINDER SYSTEM
A new type of binder for wood particles or fibres was developed using a recycled polyol from polyurethane or PET wastes and a polyisocyanate as raw materials. The binders developed with various ratios of hydroxyl and isocyanate groups are solid at room temperature with melting points between 40 and...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2008-08-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_03_3_0859_High_Strength_Wood_Polymer_Composites/235 |
| _version_ | 1819169943730520064 |
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| author | Denitsa Georgieva S. Nenkova M. Herzog G. Behrendt |
| author_facet | Denitsa Georgieva S. Nenkova M. Herzog G. Behrendt |
| author_sort | Denitsa Georgieva |
| collection | DOAJ |
| description | A new type of binder for wood particles or fibres was developed using a recycled polyol from polyurethane or PET wastes and a polyisocyanate as raw materials. The binders developed with various ratios of hydroxyl and isocyanate groups are solid at room temperature with melting points between 40 and 60°C. Between 5 and 20% of these were mixed with the wood products and compression-moulded at temperatures between 80 and 100°C and 0.75 to 2.05 kp/mm² pressure to give composites of tensile strength up to 47 N/mm2 or flexural strength up to 58 N/mm2. |
| first_indexed | 2024-12-22T19:27:32Z |
| format | Article |
| id | doaj.art-d1b52a6fa2ba47c590edd65ae49ca0b0 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-12-22T19:27:32Z |
| publishDate | 2008-08-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-d1b52a6fa2ba47c590edd65ae49ca0b02022-12-21T18:15:13ZengNorth Carolina State UniversityBioResources1930-21262008-08-0133859869HIGH MECHANICAL STRENGTH WOOD POLYMER COMPOSITES BY USE OF A NEW POLYURETHANE BINDER SYSTEMDenitsa GeorgievaS. NenkovaM. HerzogG. BehrendtA new type of binder for wood particles or fibres was developed using a recycled polyol from polyurethane or PET wastes and a polyisocyanate as raw materials. The binders developed with various ratios of hydroxyl and isocyanate groups are solid at room temperature with melting points between 40 and 60°C. Between 5 and 20% of these were mixed with the wood products and compression-moulded at temperatures between 80 and 100°C and 0.75 to 2.05 kp/mm² pressure to give composites of tensile strength up to 47 N/mm2 or flexural strength up to 58 N/mm2.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_03_3_0859_High_Strength_Wood_Polymer_Composites/235WoodCompositesPolyurethanePETRecyclingPolyols |
| spellingShingle | Denitsa Georgieva S. Nenkova M. Herzog G. Behrendt HIGH MECHANICAL STRENGTH WOOD POLYMER COMPOSITES BY USE OF A NEW POLYURETHANE BINDER SYSTEM BioResources Wood Composites Polyurethane PET Recycling Polyols |
| title | HIGH MECHANICAL STRENGTH WOOD POLYMER COMPOSITES BY USE OF A NEW POLYURETHANE BINDER SYSTEM |
| title_full | HIGH MECHANICAL STRENGTH WOOD POLYMER COMPOSITES BY USE OF A NEW POLYURETHANE BINDER SYSTEM |
| title_fullStr | HIGH MECHANICAL STRENGTH WOOD POLYMER COMPOSITES BY USE OF A NEW POLYURETHANE BINDER SYSTEM |
| title_full_unstemmed | HIGH MECHANICAL STRENGTH WOOD POLYMER COMPOSITES BY USE OF A NEW POLYURETHANE BINDER SYSTEM |
| title_short | HIGH MECHANICAL STRENGTH WOOD POLYMER COMPOSITES BY USE OF A NEW POLYURETHANE BINDER SYSTEM |
| title_sort | high mechanical strength wood polymer composites by use of a new polyurethane binder system |
| topic | Wood Composites Polyurethane PET Recycling Polyols |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_03_3_0859_High_Strength_Wood_Polymer_Composites/235 |
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