Luo Zhaohui. Synthesis of Polyurethane Prepolymers and Their Application in Wood Adhesion. [J]. China Wood Industry (2).(1997) DOI: 10.19455/j.mcgy.1997.02.003.
Synthesis of Polyurethane Prepolymers and Their Application in Wood Adhesion
In this study, the synthetic technology of different polyurethane prepolymers was investigated. The effect of molecular structure of polyurethane on tensile strength and percentage elongation were evaluated by measuring the mechanical properties of the cured resin films. Bonding tests of high moisture content wood with polyurethane adhesives were also carried out tentatively. The results indicated that the adhesives withlinear structure and high molecularweight showed higherpercentage elongation but lower tensile strength. It is possible to use polyurethane for bonding high moisture content wood.