A Study on the Effect of Chemical Composition on Properties of Lignosulfonate Prepared from Larch Tannin Extraction Residue

Abstract:

Chemical composition of larch bark residue after tannin extraction was analyzed and sulfonation reaction was proceeded on bark residue. Effects of sulfonation of bark chemical components on surface activity, dispersing property and fluidity of cement paste products were studied. Results showed that the main chemical compositions of bark residue after tannin extraction were phenolic acid and lignin, which were much higher than that of wood raw material. Hydrolysable tannin and condensed tannin also existed in bark residue. Lignosulfonate prepared from bark residue had better surface activity, dispersing property, the reason might be the existence of soluble tannin and phlobatannin, high fluidity of cement paste might come from the existence of soluble tannin and phenolic acids.

• Periodical: Advanced Materials Research (Volume 460)
• Pages: 365-367
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.460.365
• Online since: February 2012
• Authors: Zhe Wang, Jing Wen Xue
• Keywords: Bark, Dispersing Property, Lignosulfonate, Surface Activity, Water Reducing Agent

References

[1] Z. Zheng, Bark Chemistry and Utilization, Beijing, China Forestry Publishing House, (1985).

[2] S. Yang, Chemistry of Plant Fiber, China Light Industry Publishing House, (2001).

[3] Z. Xiao, Tanning Extract. Beijing, China Forestry Publishing House, (1988).

[4] D. Sun, Tannin Chemistry of Plant, China Forestry Publishing House, (1992).

[5] J. Zhang, Reactivities of Phenols in Tree and Chemical Effect of Phenols on Oil Field. Nanjing Forestry University, Doctoral Dissertation (1998).

[6] W. Ji, W. Chen and Y. Zhang, Editor, Test Manual of Construction Materials. China Architechture and Building Press, Beijing (1988).