urea formaldehyde resin reinforced by silk cocoon

Brzali, Samira; Jamalirad, Laya; Faraji, Farshid; Hejazi, Sahab

doi:10.22092/ijwpr.2016.106285

Document Type : Research Paper

Authors

¹ M.Sc. Student, Department of Wood and Paper Science and Engineering, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad, I.R. Iran.

² Assistant Professor, Department of Wood and Paper Science and Engineering, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad, I.R. Iran

³ Assistant Professor, Department of Wood and Paper Science and Engineering, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad, I.R. Iran.

⁴ Associate Professor, Department of Wood and Paper Science and Engineering, Faculty of Natural Resources, University of Tehran, Karaj, I.R. Iran.

https://doi.org/10.22092/ijwpr.2016.106285

Abstract

In this research with the aim of using a natural component, renewable and environmentally friendly which is not environmental pollution, the physical and mechanical properties of plywood manufactured by populous with urea formaldehyde resin and silk cocoon were studied. For this purpose, silk cocoon was used as filler and reinforcement for four levels of 0, 10, 20 and 30 percent according to dry weight of urea formaldehyde resin. The physical and mechanical properties of samples including water absorption and thickness swelling after 2 and 24 hours immersion in water, bending strength parallel and perpendicular to the surface layer grain and shear strength were measured. The results show that increasing the amount of silk cocoon, decreased water absorption and thickness swelling after 2 and 24 hours immersion in water and increased bending strength parallel and perpendicular to the surface layer grain and shear strength. So that, using 30 percent of silk cocoon, dimensional stability, bending strength and shear strength, were improved.

Keywords

Main Subjects

Composite wood products

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Iranian Journal of Wood and Paper Science Research

urea formaldehyde resin reinforced by silk cocoon

References

References

Volume 31, Fall 3 - Serial Number 56
September 2016
Pages 500-509

urea formaldehyde resin reinforced by silk cocoon

References

References

Volume 31, Fall 3 - Serial Number 56September 2016Pages 500-509

Volume 31, Fall 3 - Serial Number 56
September 2016
Pages 500-509