This paper studies the new synthesis technique of urea-formaldehyde resin adhesive , with PVA and capturing agent of formaldehyde by own preparation modifing its nature , experiments show that urea-formaldehyde adhesive with modified nature has these characteristics : low free formaldehyde content , high-strength , water-proof.?   脲醛树脂(UF树脂)于1844年由B.Tollens首次合成,1896年前后在C.Goldschmidt等的研究后首次应用,且1929年德国I.G染料公司获得第一份脲醛树脂木材胶粘剂的专利以来,由于其成本低、制造简便、原料来源丰富等一系列优点而被广泛应用.然而,随着人们生活水平的提高,环保意识提高~~