摘要
采用自制聚(丙烯酸-丙烯酰胺)高吸水性树脂(PAAM)研究了0.9%食盐水、人工尿液、人工血液中吸液性能,室内自然环境下PAAM在泥土、河沙、泥土/河沙(1∶1)中对自来水、0.9%食盐水的保水性能。结果表明,吸液初期(5 min内),PAAM在0.9%食盐水、人工尿液和人工血液中的吸水倍率随时间增加而迅速增加,10 min后吸水倍率达平衡,且吸水倍率顺序为0.9%食盐水>>人工血液>人工尿液。其他条件相同时,随PAAM的用量增加,土壤保水率增大;随时间增长,土壤保水性能下降;自来水中的保水率优于食盐水的。
The absorbencies capacity in 0. 9 % NaCl solution, artificial urea and artificial blood and the water retention capacity in natural indoor environment are studied by using self-made high absorbing water resin （PAAM）. The results showed that the absorbencies in 0. 9%NaCl solution, artificial urea and artificial blood increased fast in initial 5 minutes, the equilibrium absorbencies were reached after 10 minutes, the order of absorbency was 0. 9 % NaCl〉〉artificiaI urea 〉artificial blood. Under equal conditions, water retention ratios （WRR） increased with the increase of PAAM mass and decreased with the increase of time. WRR in tap water is better than that in 0. 9%NaCl solution.
出处
《节水灌溉》
北大核心
2009年第12期22-24,28,共4页
Water Saving Irrigation
基金
湖南省自然科学重点基金资助项目(07JJ3109)
国家留学回国人员基金项目
湖南省科技厅科技攻关项目(08NK305)
中南林业科技大学引进人才基金(101-656)
关键词
高吸水树脂
保水剂
吸液性能
保水性能
丙烯酸
丙烯酰胺
high water-absorbing resin
super absorbent polymers
absorbency capability
water retention capability
acrylic acid
acrylamide
