纳米氧化铜改性酚醛树脂固化动力学研究:分散剂的作用
The effect of nano cupric oxide (CuO) in combination with surfactants on the curing kinetics of phenol formaldehyde (PF) resin, as well as the bonding strength of plywood prepared using the modified resin were investigated in this study using dynamic and isothermal differential scanning calorimetry (DSC).The result showed that the incorporation of nano Cu0 along with alkane surfactant made in the laboratory clearly reduced the apparent activation energy of the PF resin and improved the addition and condensation reactions of the PF resin. Inclusion of the surfactant had the further effect of compensating the influence of diffusion control caused by nano Cu0 alone. The shear strength of plywood suggested that the addition of nano Cu0 (1％) alone or in combination with alkane surfactant (0.55%)or sodium lignosolfonate (0.55%) in the PF resin mixture was sufficient to meet the requirement of wood-based composites manufacturing。
酚醛树脂 纳米氧化铜改性 固化动力学 分散剂
高伟 杜官本
西南林业大学材料工程学院,云南 昆明 650224
国内会议
福州
中文
623-626
2013-04-23（万方平台首次上网日期，不代表论文的发表时间）