The modification has been made on the black wattle tannin adhesive with sodium sulfite and the MUF concentrate so as to prepare out a tannin adhesive with good water-proof and better glue properties.

• 采用亚硫酸钠和三聚氰胺-尿素-甲醛预缩液对黑荆树单宁胶粘剂进行改性处理,制备具有良好的耐水性能和胶合性能的单宁胶粘剂。