Review on Preparation of Phenolic Resin Adhesive from Black Liquor Lignin
Lignin can replace part of phenol to prepare phenolic resin adhesive due to its similar structure. Based on the review of lignin base adhesive development, two different ways for black liquor lignin adhesive preparation were introduced. One is that the lignin directly replaces the phenol; the other is to modify the lignin before combining with phenolic resin. Rationally application of black liquor lignin can not only effectively handle large volume of black liquor, but also reduce production cost of phenolic resin adhesive.