Location: Commodity Utilization ResearchTitle: Adhesive strength of pilot-scale-produced water-washed cottonseed meal in comparison with a synthetic glue for non-structural interior application
|CHIOZZA, FABIO - Vinavil Spa|
Submitted to: Journal of Materials Science Research
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/14/2017
Publication Date: 6/21/2017
Citation: He, Z., Chiozza, F. 2017. Adhesive strength of pilot-scale-produced water-washed cottonseed meal in comparison with a synthetic glue for non-structural interior application. Journal of Materials Science Research. 6(3):20-26.
Interpretive Summary: The types of adhesives commonly used in the wood industry for furniture applications can be both thermosetting and thermoplastic in nature. The choice of a specific adhesive for use depends on several criteria in application, such as final use, required performances, costs, application process, and environmental issues. In this study, we compared the adhesive strength of the pilot-produced water washed conttonseed meal (WCSM) with that of a synthetic glue Vinavil 2259 L. The adhesive performance was tested in reference to the relevant European industrial standards. Data demonstrated that WCSM may be used as the conventional D1 wood adhesives for nonstructural interior application. In addition, WCSM also met the requirements of D3 with the dry adhesives strength and heat resistance. However, WCSM showed under-criteria value of water resistance. Blending WCSM with Vinavil 2259 L improved the water resistance of WCSM, allowing the classification of the WCSM adhesive as D3. The information presented in this work would be helpful in formulating industrially applicable WCSM-based wood adhesives.
Technical Abstract: Water-washed cottonseed meal (WCSM) has been shown the potential to be used as renewable and environment-friendly adhesives in wood products industry. Recently, WCSM was produced from defatted meal in a pilot scale. In this study, we initially compare the adhesive strength of the pilot-produced WCSM with that of a synthetic glue Vinavil 2259 L. WCSM may be used as the conventional D1 wood adhesives for nonstructural interior application per European standard EN204/205. Non-structural D3 type adhesives is more widely used in protected outside. Under the testing conditions, WCSM possessed very high heat resistance according to European standard EN14257 (WATT 91)-adhesive strength after 1 hour at 80°C. However, the dry strength (EN204/205) and water resistance (specimen were put in water for 4 days and then pulled in the dynamometer) of WCSM were lower than those of the synthetic glue Vinavil 2259 L. However, blending WCSM with Vinavil 2259 L improved the water resistance of WCSM, allowing the classification of the WCSM adhesive as D3. Further work will be focused on the increase of solid content of the final adhesive slurries and the improvement of their water resistance.