The preparation and application of a new formaldehyde-free adhesive for plywood

Autor:	Liang Tang, Ying Feng, Ji-ruo Zhao, Jiao Qi, Zhao-gang Zhang
Rok vydání:	2011
Předmět:	Materials science Polymers and Plastics General Chemical Engineering medicine.medical_treatment Maleic anhydride Hot pressing Biomaterials chemistry.chemical_compound chemistry Boiling Shear strength medicine Surface modification Veneer High-density polyethylene Adhesive Composite material
Zdroj:	International Journal of Adhesion and Adhesives. 31:507-512
ISSN:	0143-7496
DOI:	10.1016/j.ijadhadh.2011.04.005
Popis:	In this study, we developed a new formaldehyde-free adhesive prepared by in-situ chlorinating graft copolymerization for plywood. The main ingredients of this adhesive include maleic anhydride (MAH) and high density polyethylene (HDPE) that is MAH grafted onto HDPE (PE-cg-MAH). The reaction between this adhesive and veneer, the optimum formulation to bond veneer and the optimum hot-press conditions to prepare the plywood were investigated. A boiling water test was employed to evaluate the strength and water resistance of plywood bonded with this adhesive. The results showed that the properties of the resulting plywood using PE-cg-MAH as an adhesive can meet the standard of Type I plywood and the optimum hot-press conditions were 160–165 °C and 5 min. When the chlorine contents of PE-cg-MAH was about 3% (wt%), the plywood panels had a higher shear strength after boiling water test above the hot-press conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9ffc5fcacc4e57cebbe1b61a7f6bb1e9 https://doi.org/10.1016/j.ijadhadh.2011.04.005 Zobrazit plný text záznamu Full Text from ScienceDirect