The effect of core layer treatment and almond shell powder content in the glue line on the pull off adhesion sandwich panel | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 13, Volume 31, SPRING 1 - Serial Number 54, March 2016, Pages 141-153 PDF (943.92 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2015.105605 | ||
| Authors | ||
| Morteza Nazeryan* 1; Vahid Moazemi2; Rahim Mohebi gargari3 | ||
| 1Associate Professor, department of Wood and Paper Science and Technology, University of Zabol, Iran | ||
| 2M.Sc., Department of Wood and Paper Science and Technology, University of Zabol, Iran | ||
| 3Trainer, Department of Wood and Paper Science and Technology, University of Zabol, Iran | ||
| Abstract | ||
| The aim of this study was the evaluation of treatment effect of giant reed (Arundo donax) (untreated, heat-treated and hot-water-leached treatment) used in core layer of sandwich panel, and also the effect of weight ratio of almond shell powder to melamine/urea formaldehyde at three levels (3:97, 18:82 and 33:67 w/w) on the dry- and wet-pull off adhesion (after 2 hours immersion in boiling water) of sandwich panel. Statistical analysis and Duncan multiple range test showed that the type of treatment of core layer particle and the ratio of almond shell powder to melamine/urea formaldehyde statistically influenced the dry and wet-pull off adhesion. According to the FTIR spectra obtained from samples made from particle treated with hot-water, the hot-water treatment caused an increase in number of hydrogen bonds. Macroscopic photos, also, showed that hot-water treatment created the best surface quality in order to forming desirable bond. Generally, panel manufactured from hot-water-treated particles in core layer and 33% of almond shell powder in glue line had the highest pull off adhesion in dry (5.01MPa) and wet (2.86 MPa) conditions. | ||
| Keywords | ||
| sandwich panel; almond shell powder; FTIR; pull off adhesion | ||
| References | ||
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