两性离子型PVAc共聚乳液用于高盐沙地生态固沙性能的研究  

Application of Amphoteric PVAc Copolymer Emulsion for Ecological Sand Fixation in High Salt-affected Sandy Land

作　　者：李美兰 龚伟[1,2] 师静 许娇[1] 柯秀 刘白玲 LI Meilan;GONG Wei;SHI Jing;XU Jiao;KE Xiu;LIU Bailing(Key Laboratory of Comprehensive Utilization of Tailings Resources in Shaanxi Province, Shangluo University, Shangluo 726000, China;Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China)

机构地区：[1]商洛学院,陕西省尾矿资源综合利用重点实验室,陕西商洛726000 [2]中国科学院成都有机化学研究所,成都610041

出　　处：《中国塑料》2019年第10期46-53,共8页China Plastics

基　　金：陕西省科技厅项目（2019JQ-907）;陕西省教育厅重点项目（18JS032）;商洛市科技局自然科学基金（SK2016-47）

摘　　要：探究两性离子型PVAc共聚乳液用于高盐沙地治理的技术依据,从固沙性能和生态效应两方面为切入点,详细研究了两性离子型PVAc共聚乳液用于高盐沙地生态固沙的综合效果。结果表明,两性离子型PVAc共聚物不但具有良好的耐盐性能,而且将其用于高盐沙地固沙,在施用浓度为2.0%时,两性离子型PVAc共聚乳液的固沙强度达到0.46MPa,已满足沙漠环境中抗风蚀性能的要求;相比于非两性离子型PVAc共聚乳液而言,两性离子型PVAc共聚乳液可明显提高沙土的保水性能,增加水分的利用率,从而促进沙土微生物的生长;两性离子型PVAc共聚乳液可作为一种新型生态固沙剂应用于高盐沙地的生态治理。In order to obtain the technical basis of the amphoteric PVAc copolymer emulsion used for the ecological sand-fixation of salty desert, a detailed investigation was conducted to investigate the application effect of this copolymer emulsion according to the sand-fixing properties and ecological effectiveness. The experimental results indicated that the amphoteric PVAc copolymer emulsion not only had excellent salt resistance but also exhibited the high sand-fixing strength of 0.46 MPa when 2 wt % of amphoteric PVAc copolymer emulsion was applied for sand-fixation in the high salt-affected sandy land. Such a result could meet the requirements for wind erosion resistance in the desert environment. In addition, compared to non-amphoteric PVAc copolymer emulsion, the amphoteric one significantly improved the water-retention property and increased the utilization rate of water and therefore could promote the growth of sandy soil microorganisms. The investigation confirmed that the amphoteric PVAc copolymer emulsion could be used as a novel ecological sand-fixing material for the ecological management of salty desert.

关 键 词：两性共聚物 高盐沙地 生态固沙 共聚乳液 生态效应 

分 类 号：TQ325.9[化学工程—合成树脂塑料工业]