以马铃薯渣为原料合成土壤保水剂的研究  

Study of potato residue as raw material to synthesis of soil water retention agent

作　　者：尤美云[1,2] 刘广华 张福金[1,2] 连海飞[1,2] 尹鑫 王文曦[1,2] 李国银[1,2] 张欣昕 YOU Meiyun;LIU Guanghua;ZHANG Fujin;LIAN Haifei;YIN Xin;WANG Wenxi;LI Guoyin;ZHANG Xinxin(Institute of Resources Environment and Testing Technology,Inneer Mongolia Academy of Agriculture and Animal Husbandry Sciences,Hohhot 010031,China;Quality Safety and Risk Assessment Laboratory for Agricultural Product,Hohhot 010031,China)

机构地区：[1]内蒙古农牧业科学院资源环境与检测技术研究所,内蒙古呼和浩特010031 [2]农业部农产品质量安全监督检验测试中心,内蒙古呼和浩特010031

出　　处：《北方农业学报》2017年第4期47-53,共7页Journal of Northern Agriculture

基　　金：内蒙古农牧业科学院创新基金项目(2014CXJJN01)

摘　　要：以马铃薯渣为原料、水作溶剂合成羧甲基马铃薯渣,羧甲基马铃薯渣接枝单体丙烯酸、丙烯酰胺在交联剂N,N-亚甲基双丙烯酰胺和K2S2O8-Na HSO3氧化还原引发体系作用下合成土壤保水剂,研究了产品的吸液性能、保水性及重复吸水能力,并利用元素分析、XRD衍射分析、扫描电镜等手段对产品进行了表征,研究结果表明:土壤保水剂的最佳合成条件是单体与羧甲基马铃薯渣质量比为6∶1,丙烯酰胺与丙烯酸质量比为6∶1,丙烯酸中和度为70%,交联剂用量为单体质量的0.16%,引发剂用量为单体质量的0.83%,产品吸水量为1 550 g/g;最佳产品在烘箱干燥15 h,保水率保持在68%,离心1 h,保水率在74%。Potato residue as raw material,water as solvent to synthesize carboxymethyl potato residue,Soil Water-retaining agent was synthesised by Crosslinking Agent N,N-methylenebisacrylamide and K2S2O8-NaHSO3 redox initiation system with Carboxymethyl Potato Slag Grafting Monomer Acrylic Acid and Acrylamide.The properties of liquid absorption,water retention and repeated water absorption were studied.The products were characterized by scanning electron microscopy,XRD.The results showed that the optimum conditions of the soil water-retaining agent were as follows:the mass ratio of monomer to carboxymethyl potato residue was 6∶1;the ratio of acrylamide to acrylic acid was 6∶1;the degree of neutralization of acrylic acid was 70%;the amount of crosslinking agent was 0.16%;the amount of initiator was 0.83%;product water absorption was 1 550g/g.The best product was dried in a vacuum oven for 15 h which water retention rate remained at around 68%,to centrifugal 1 h,water rate was about 74%.

关 键 词：马铃薯渣 保水剂 保水能力 吸液性能 

分 类 号：S482.99[农业科学—农药学]