Synthesis and characterization of surface cross-linked humic acid/poly acrylic acid superabsorbent resin

CHU Mo; ZHU Shuquan; LI Huamin; HUANG Zhanbin; ZOU Lizhuang

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Synthesis and characterization of surface cross-linked humic acid/poly acrylic acid superabsorbent resin

更新时间：2025-12-10

- Synthesis and characterization of surface cross-linked humic acid/poly acrylic acid superabsorbent resin
- CIESC Journal Issue 10, Pages: 2004-2008(2005)
- 作者机构：
  
  1. 中国矿业大学（北京）,北京,100083
  2. 中煤国际工程设计研究总院,北京,100011
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 October 2005，
  
  Published：25 October 2005
- 稿件说明：
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CHU Mo, ZHU Shuquan, LI Huamin, et al. Synthesis and characterization of surface cross-linked humic acid/poly acrylic acid superabsorbent resin[J]. CIESC Journal, 2005, (10): 2004-2008.
DOI：

CHU Mo, ZHU Shuquan, LI Huamin, et al. Synthesis and characterization of surface cross-linked humic acid/poly acrylic acid superabsorbent resin[J]. CIESC Journal, 2005, (10): 2004-2008. DOI：

摘要

将交联剂N，N′-亚甲基双丙烯酰胺溶于甲醇溶液制成表面处理液，通过表面交联反应将磺化腐殖酸（HA）与聚丙烯酸(PAA)结合，制得一种适合于农林领域应用的腐殖酸-聚丙烯酸高吸水性树脂（HA-PAA）.研究了表面处理液浓度、交联剂用量和腐殖酸量对HA-PAA吸水性能的影响规律和吸水机理，以及产物在沙土中的保水性能

并通过扫描电镜分析了HA-PAA的表面结构.研究结果表明，当含有10% HA时，HA-PAA耐电解质性能良好，吸水性能最佳;当沙土中添加0.2%的HA-PAA时，可明显改善沙土的贮水、保水性能.HA-PAA作为农林领域用保水剂

可发挥抗旱保墒和促进植物生长的双重作用.

Abstract

A composite superabsorbent resin(HA-PAA) for agricultural application was prepared by the surface cross-linking reaction of sulfonated humic acid and poly acrylic acid.N

N′-methylenebisacryamide dissolved in methanol solution was used as surface cross-linking agent.The effect of the ratio of sulfonated humic to poly acrylic acid

the concentration of cross-linking agent

and volume ratio of methanol to deionized water on water absorbency was investigated.In contrast with poly acrylic acid

the surface structure of HA-PAA was analyzed by microscopic investigation

and water-absorbing mechanism was explored.The experimental results showed that HA-PAA with 10%(mass) humic acid possessed better water absorbency and electrolyte resistance.Compared with the sample of poly acrylic acid

the water retention of HA-PAA in sand was also studied.The water retention of the sand was enhanced greatly when mixed with 0.2% HA-PAA.HA-PAA can be used as water-managing and growth-improving materials for agriculture and horticulture purposes in desert-prone areas.

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