Glue wood veneer to wood-fiber–high-density-polyethylene composite

被引:0
|
作者
Sun, Yanan [1 ]
Guo, Limin [1 ]
Liu, Yinan [1 ]
Wang, Weihong [1 ]
Song, Yongming [1 ]
机构
[1] Key Lab of Bio-Based Material Science & Technology of Education Ministry, Northeast Forestry University, Harbin,150040, China
来源
International Journal of Adhesion and Adhesives | 2019年 / 95卷
关键词
Decorative veneers - High density polyethylene composites - Hot pressing method - Hot pressing pressure - Hot pressing temperature - Surface bonding strength - Wood fiber - Wood veneer;
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学科分类号
摘要
Wood-fiber-reinforced thermoplastic plastic composite is a type of environmentally friendly material. However, its application in furniture and interior decoration is limited due to its lack of wood texture. In this work, wood-veneer-facing decoration was explored to beautify the composite's appearance. Surface planning and slight sanding were applied to wood-fiber–high-density-polyethylene (WF-HDPE) composite. Polyvinyl acetate emulsion was used as adhesive, and the veneer-faced WF-HDPE composite floor was prepared by the hot-pressing method. The bonding line was analyzed with Fourier-transform infrared spectroscopy and scanning electron microscopy. Planning plus sanding treatment removed the HDPE film on the composite surface and exposed the wood fibers to react with the adhesive. The rough surface provided all decorative samples bonding strengths higher than 0.9 MPa. The bond line could stand 63 °C water soaking for 3 h without delamination. The hot-pressing temperature exhibited a significant effect on surface bonding strength. The optimized hot-pressing technique included a hot-pressing temperature of 80 °C, a hot-pressing time of 10–20 min, and a hot-pressing pressure of 0.2 MPa. With this combination, the surface-decorative veneer retained the beauty of its original color. © 2019 Elsevier Ltd
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