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Viscoelastic Properties of Liquefied Wood/Epoxy Resin and its Bond Strength

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Published/Copyright: June 1, 2005
Holzforschung
From the journal Volume 55 Issue 6

Summary

A new resin system, in which liquefied wood was reacted with various epoxy compounds, was previously developed. This paper reports the syntheses of two types of liquefied wood/epoxy resins with the ratio of liquefied wood to epoxy compounds (L/E ratio) of either 1/0.5 or 1/1. Furthermore, the viscoelastic properties obtained from the dynamic mechanical measurements of the cured resins and their adhesive bond properties measured as tensile shear strength are reported. The results from dynamic mechanical measurements indicated that the resins with a L/E ratio of 1/0.5 could be cured at 90°C, while the resins with L/E ratio of 1/1 were cured at 150°C. The resins cured with triethylene tetramine (TETA) at 150°C or 90°C had almost the same level of the normal adhesive shear strength as that of the commercial epoxy resin. The high level of adhesive shear strength of the resin cured at 150°C was maintained after the glued specimens were soaked in water at 60°C, while the share strength of the resins cured at 90°C was reduced by either the water soaking at 60°C or the cyclic boiling test.

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Published Online: 2005-06-01
Published in Print: 2001-11-06

Copyright © 2001 by Walter de Gruyter GmbH & Co. KG

Articles in the same Issue

  1. Application of Scanning UV Microspectrophotometry to Localise Lignins and Phenolic Extractives in Plant Cell Walls
  2. Fungicidal Activity of 3'-Substituted-3-Stilbenols
  3. Characterisation of a Soft Rot-Like Decay Pattern Caused by Coniophora puteana (Schum.) Karst. in Sapelli Wood (Entandrophragma cylindricum Sprague)
  4. Transformation of Chlorophenols by White-Rot Fungi and their Laccase
  5. Fixation of Amine Copper Preservatives. Part 1. Reaction of Vanillin, a Lignin Model Compound with Monoethanolamine Copper Sulphate Solution
  6. Influence of Moisture Sorption on Swelling of Mahogany (Swietenia macrophylla King) Wood
  7. Silica in Several Rattan Species
  8. Changes in the Properties of Light-Irradiated Wood with Heat Treatment. Part 1. Effect of Treatment Conditions on the Change in Color
  9. Evaluating Strength Properties of Pinus radiata from Ultrasonic Measurements on Increment Cores
  10. Delignification Mechanism during High-Boiling Solvent Pulping. Part 1. Reaction of Guaiacylglycerol-β-Guaiacyl Ether
  11. Liquefaction Mechanism of β-O-4 Lignin Model Compound in the Presence of Phenol under Acid Catalysis. Part 1. Identification of the Reaction Products
  12. Liquefaction Mechanism of β-O-4 Lignin Model Compound in the Presence of Phenol under Acid Catalysis. Part 2. Reaction Behaviour and Pathways
  13. Study of Residual Lignin in Pulp by UV Resonance Raman Spectroscopy
  14. The Importance of Xylan for the Strength Properties of Spruce Kraft Pulp Fibres
  15. Eucalyptus globulus Kraft Pulp Residual Lignin. Part 2. Modification of Residual Lignin Structure in Oxygen Bleaching
  16. Monitoring Acoustic Emissions from Finger-Joints from Tropical African Hardwoods for Predicting Ultimate Tensile Strength
  17. Hydrolytic Processes and Condensation Reactions in the Cellulose Solvent System N,N-Dimethylacetamide/Lithium Chloride. Part 1.
  18. Viscoelastic Properties of Liquefied Wood/Epoxy Resin and its Bond Strength
  19. Prof. Dr. Josef Bauch 65 years old
  20. In Memory of Prof. Guglielmo Giordano
  21. Literature Reports
https://doi.org/10.1515/HF.2001.108

Articles in the same Issue

  1. Application of Scanning UV Microspectrophotometry to Localise Lignins and Phenolic Extractives in Plant Cell Walls
  2. Fungicidal Activity of 3'-Substituted-3-Stilbenols
  3. Characterisation of a Soft Rot-Like Decay Pattern Caused by Coniophora puteana (Schum.) Karst. in Sapelli Wood (Entandrophragma cylindricum Sprague)
  4. Transformation of Chlorophenols by White-Rot Fungi and their Laccase
  5. Fixation of Amine Copper Preservatives. Part 1. Reaction of Vanillin, a Lignin Model Compound with Monoethanolamine Copper Sulphate Solution
  6. Influence of Moisture Sorption on Swelling of Mahogany (Swietenia macrophylla King) Wood
  7. Silica in Several Rattan Species
  8. Changes in the Properties of Light-Irradiated Wood with Heat Treatment. Part 1. Effect of Treatment Conditions on the Change in Color
  9. Evaluating Strength Properties of Pinus radiata from Ultrasonic Measurements on Increment Cores
  10. Delignification Mechanism during High-Boiling Solvent Pulping. Part 1. Reaction of Guaiacylglycerol-β-Guaiacyl Ether
  11. Liquefaction Mechanism of β-O-4 Lignin Model Compound in the Presence of Phenol under Acid Catalysis. Part 1. Identification of the Reaction Products
  12. Liquefaction Mechanism of β-O-4 Lignin Model Compound in the Presence of Phenol under Acid Catalysis. Part 2. Reaction Behaviour and Pathways
  13. Study of Residual Lignin in Pulp by UV Resonance Raman Spectroscopy
  14. The Importance of Xylan for the Strength Properties of Spruce Kraft Pulp Fibres
  15. Eucalyptus globulus Kraft Pulp Residual Lignin. Part 2. Modification of Residual Lignin Structure in Oxygen Bleaching
  16. Monitoring Acoustic Emissions from Finger-Joints from Tropical African Hardwoods for Predicting Ultimate Tensile Strength
  17. Hydrolytic Processes and Condensation Reactions in the Cellulose Solvent System N,N-Dimethylacetamide/Lithium Chloride. Part 1.
  18. Viscoelastic Properties of Liquefied Wood/Epoxy Resin and its Bond Strength
  19. Prof. Dr. Josef Bauch 65 years old
  20. In Memory of Prof. Guglielmo Giordano
  21. Literature Reports
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