Preparation and Performance Analysis of Lignocellulose Water Retention Agent and Combination with Coal Gangue Ceramsite

2017 4th International Conference on Environmental Systems Research

生态环境科学

Fang, Xiaoyu^1 ; Fu, Shengjie^1 ; Li, Yonggang^1

College of Chemical Engineering, Qinghai University, Xining

810016, China^1

关键词: Cross linking agents;    Environmental-friendly;    Orthogonal experiment;    Performance analysis;    Technological conditions;    Water absorbency;    Water retention;    Water retention agents;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/178/1/012018/pdf
DOI  :  10.1088/1755-1315/178/1/012018

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Environmental friendly water retention agent has been widely used in agriculture, since its ability to absorb water, hold in water, resist salt. In this study, the water rentention agent was polymerized with using wood cellulose as raw material, acrylamide as monomer, N, N - methylene double acrylamide as crosslinking agent, ammonium persulfate as the initiator. The optimized technological conditions was obtained by the orthogonal experiments: the quality ratio of cellulose and acrylamide was in 1:6, ammonium persulfate was 1.5 wt%(of the total amount of cellulose and monomer), N, N - methylene double acrylamide 0.25 wt%(of the total amount of cellulose and monomer). The maximum water absorbency of water retention agent was 330.07g/g in distilled water and 117.48g/g in 0.9 wt% KCl solution. On the basis of this, using water retention agent as the coating for coal gangue ceramsite, and the maximum water absorbency of water retention agent was 332.15g/g in distilled water and 118.91g/g in 0.9wt% KCl solution. The results show that adopting above process not only can obtain good water retention agent, but also can enhance the water retention and salt resistance by using with ceramsite.