脲醛树脂的改性方法

The way of Modification of Vrea Formaldehyde Resin Adhesive

综述了脲醛树脂改性的四种方法：（１）降低游离甲醛的释放量；（２）改善脲醛树脂的耐水性；（３）改善其耐老化性能；（４）添加活性填充剂．

Four ways of modification of VF Resin Adhesive have been reviewed in this paper.(1)decrease emitted free formaldehgde;(2)improve water risistance;(3)improve durability;(4)add living filler.