| 张建刚,汪勇,汪有科,宋海燕,何婷婷,汪星.10种保水剂基本特性对比研究[J].干旱地区农业研究,2009,27(2):208~212 |
| 10种保水剂基本特性对比研究 |
| Comparative analysis of basic properties of 10 super absorbent polymers |
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| DOI：10.7606/j.issn.1000-7601.2009.02.39 |
| 中文关键词: 保水剂 吸水倍数 吸水速率 保水率 |
| 英文关键词:super-absorbent-polymer water absorption capacity water absorption rate moisture-preserving capacity |
| 基金项目:科技部863课题“现代节水农业技术系统创新及集成应用”(2006AA100223) |
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| 中文摘要: |
| 本文通过室内实验,比较分析了N1,N2,Hl,B,S,Hm,K,Ph,J,Hs等10种农用保水剂在纯水及不同肥料溶液中的吸水倍数、吸水速率、保水率及反复吸水次数。结果表明:所有保水剂在纯水中都有较高的吸水倍数,但不同浓度的不同肥料溶液对所有保水剂吸水倍数有着不同的影响,在相同浓度条件下,保水剂B、K和Hs相对其他保水剂其吸水倍数较高;就吸水速率看,B、K、J、和Hs保水剂都能较快地吸水;各种保水剂在土壤中和加热蒸发条件下的保水率B、S、K、Hs四种保水剂的保水能力要好于其他保水剂;在经过25次反复吸水-烘干后,N2、S、Hm、Ph四种保水剂其吸水倍率仍能达到150倍以上;综合粒径对四种特性的影响可以看出,粒径只对保水剂吸水速率有较大的影响,而对吸水倍率、保水能力和反复吸水次数影响均不大。 |
| 英文摘要: |
| According to indoor experiments, water absorbent capacity, water absorption rate, moisture-preserving capacity and times of re-absortency of N1, N2 … etc 10 kinds of agricultural super absorbent polymers are compared between distilled water and different fertilizer solution with different concentration.The results indicate: all the super-absorbent-polymers have a higher water absorption capacity in distilled water, however, water absorbent capacity of each super absorbent polymer is impacted diversely on different concentrations of different fertilizer solution.Under the same concentration condition, water absorption capacity of B, K and Hs super absorbent polymers is higher than others, while water absorption rate of B, K, J and Hs super absorbent polymers is faster than others.The moisture-preserving capacity of B, S, K and Hs super absorbent polymers is better than others under soil and heatead evaporation conditions.After 25 times of recurrent absortency-drying, water absorption capacity of N2, S and Ph super absorbent polymers reached more than 150 times.Among water absorbent capacity, water absorption rate, moisture-preserving capacity and times of re-absortency, water absorption rate is impacted significantly by particle sizes and effects on other three kinds of characteristics are little. |
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