Study on Adhesive Mechanism and Sizing Process of Wheat Straw Board in Interior Decoration

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Bai, Xuejiao^1 ; Liang, Xufang^1

School of Chinese Literature, Changchun University of Science and Technology, Changchun, Jilin

130022, China^1

关键词: Adhesive bonding;    Bonding mechanism;    International standards;    Isocyanate adhesives;    Isocyanate group;    Market advantages;    Urea-formaldehyde resin adhesives;    Wood-based panels;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/5/052070/pdf
DOI  :  10.1088/1755-1315/237/5/052070

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Wheat straw wood-based panels are widely used as environmental protection materials in indoor building decoration. In this paper, the selection of adhesives for wheat straw based panels was studied, the bonding mechanism was analyzed, and built bonding model. The results showed that: (1) adhesive isocyanate has excellent bonding properties to wheat straw surface, but its price is expensive, the wheat straw wood-based panels have no market advantage. (2) separate sizing, i.e. applying isocyanate glue first and then urea-formaldehyde resin glue, can effectively ensure the bonding strength, reduce production costs, can produce wheat straw wood-based panels that meet international standards and have market competitiveness. (3) In the process of adhesive bonding, the main function of isocyanate adhesive is to contact the hydroxyl group on the surface of straw through its high activity isocyanate group, and produce chemical effect, and then form a high efficient combination; the effect of urea-formaldehyde resin adhesive is to react with isocyanate group and promote the formation of adhesive layer.