【摘要】 介绍了脲醛树脂胶粘剂的研究现状与进展方向。探讨了影响脲醛树脂胶粘剂合成的主要因素,包括甲醛-尿素摩尔比、加料方式与顺序、pH值、反应温度和反应时间等,并比较了不同的改性方案。提出了发展绿色环保型脲醛树脂胶粘剂的总体趋势。更多还原

【Abstract】 In this paper,the current status of research and prospect on urea-formaldehyde resin adhesive were reviewed. Several factors affecting the synthesis of urea-formaldehyde resin adhesive,including formaldehyde to urea molar ratio,urea adding method,pli value,reaction temperature,reaction time,were discussed and several modifications of urea-formaldehyde resin were also compared. The development of environmentalfriendly urea-formaldehyde resin adhesive in the future was proposed.更多还原