渗灌材料制备及导水性能分析

该文旨在确定渗灌渗水涂层成分的配比方案,制备出渗水性能良好的渗灌滴头。通过对所选用的蒙脱土MMT及聚丙烯酰胺PAM材料的结构和性能进行了分析和比较,设计制备工艺,制备渗灌滴头,在实验室内搭建了渗灌材料的实际渗水的试验平台;采用拉伸强度试验对渗灌导水涂层材料与纤维结合性能进行研究,用电子显微镜对不同配比的渗灌导水材料的形貌进行了观察并对其微观结构和组成进行了分析,在不同环境条件下对渗灌材料的渗水自调节性进行分析。结果表明：PAM/MMT悬浮液的配比为0.20 g/50 m L（1∶250）时导水材料的成膜性较,涂层成膜性较好,分布较均匀。对于以1∶250聚丙烯酰胺和蒙脱石制备的的渗水材料,温度一...

Full description

Saved in:
Bibliographic Details
Published in农业工程学报 Vol. 30; no. 24; pp. 74 - 81
Main Author 张增志 王晓健 薛梅
Format Journal Article
LanguageChinese
Published 中国矿业大学 北京 机电与信息工程学院，生态功能材料研究所，北京 100083 2014
Subjects
土壤
无压渗水
材料
渗灌材料
灌溉
自调节
自调节
non-pressure water-supply
灌溉
渗灌材料
irrigation
材料
materials
self-adjusting
infiltrating irrigation material
soils
无压渗水
土壤
Online AccessGet full text

Cover

More Information
Summary:该文旨在确定渗灌渗水涂层成分的配比方案,制备出渗水性能良好的渗灌滴头。通过对所选用的蒙脱土MMT及聚丙烯酰胺PAM材料的结构和性能进行了分析和比较,设计制备工艺,制备渗灌滴头,在实验室内搭建了渗灌材料的实际渗水的试验平台;采用拉伸强度试验对渗灌导水涂层材料与纤维结合性能进行研究,用电子显微镜对不同配比的渗灌导水材料的形貌进行了观察并对其微观结构和组成进行了分析,在不同环境条件下对渗灌材料的渗水自调节性进行分析。结果表明：PAM/MMT悬浮液的配比为0.20 g/50 m L（1∶250）时导水材料的成膜性较,涂层成膜性较好,分布较均匀。对于以1∶250聚丙烯酰胺和蒙脱石制备的的渗水材料,温度一定时,随着环境土壤含水率的逐渐增加,渗水速率逐渐降低,土壤含水率一定时,随着环境温度的增加,渗水速率逐渐下降。该研究为渗灌材料制备提供参考。
Bibliography:11-2047/S
irrigation; materials; soils; infiltrating irrigation material; self-adjusting; non-pressure water-supply
Zhang Zengzhi, Wang Xiaojian, Xue Mei （School of Mechanical Electronic and Information Engineering, Research Institute of Ecological and Functional Materials China University of Mining and Technology （Beijing）, Beijing 100083, China）
Infiltrating irrigation is a kind of effective water-saving irrigation technology because it has many technical advantages including extensive application in agriculture, especially for tree irrigation in arid and semiarid regions. This study aimed to design a kind of infiltrating irrigation material that could realize self-adjusting and non-pressure water-supply under different environmental conditions as well as ensure normal plant growth with better property of saving water and energy. Through theoretical analysis and based on experience, montmorillonite（MMT） and polyacrylamide（PAM） were used to form infiltrating irrigation water-conductivity material. Different mas
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.24.009