【摘要】 介绍了制浆废液木质素的结构特征、不同改性方法制备的木质素类固沙剂的结构与固沙效果,并提出了木质素类固沙剂的改性研究思路。制浆废液中木质素来源丰富、价格低廉,改性后可提高沙子或土壤的抗压强度、抗风蚀强度、聚集体的含量等,因而在防风固沙方面逐渐成为研究热点。更多还原

【Abstract】 Lignin from pulping waste liquor has attracted more and more attention recently because of its abundance and low cost.It can be modified and used as sand-fixing agent to improve some properties of sand or soil,such as the compressive strength,the ability of resistant to wind erosion,aggregate content.In this paper,the characteristic chemical structures of lignin,structure and sand-fixing efficiency of several modified lignin sand-fixing agent were reviewed.Finally,some modified methods were suggested and these suggestions would be useful for developing effective lignin sand-fixing agent and fully utilizing the lignin from pulping waste liquor.更多还原