Alumina nanoparticle modified phenol-formaldehyde resin as a wood adhesive

Phenol-formaldehyde resin was synthesized and modified by alumina nanoparticles (ANPs). The crystal form of the ANPs was characterized by X-ray diffraction (XRD), and differential scanning calorimetry (DSC) was used for thermal analysis of the resin. In addition, the resin was applied in plywood manufacture, and the curing time as well as the bonding strength was measured. The results showed, with an appropriate doping amount of ANPs, both the curing rate and the bonding strength increased significantly. The modified resin showed extensive application prospects in the wood construction industry.